JP2887598B2 - Parts assembly equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a component assembling apparatus for assembling components to a work, and more particularly, to a component C in which it is difficult to properly maintain an assembling posture for the work. The present invention relates to a component assembling apparatus suitable for assembling a component such as a ring.

2. Description of the Related Art For example, a C-ring having an abutment is mounted on a hub portion of a clutch drum of an automatic transmission for an automobile. In the process of assembling the automatic transmission, the C ring is generally assembled to the clutch drum by an automatic working machine. At this time, if the C-ring, which is an assembly component, is not properly held with respect to the clutch drum as a workpiece, the assembly will be performed improperly.
In view of such circumstances, for example, as shown in JP-A-62-148127, a C-ring is fitted and held on the outer peripheral portion of a substantially cylindrical jig, and the jig is mounted on a ring of a work. It is considered that the C-ring is arranged so as to be coaxially aligned with the portion, and in this state, the C-ring is moved in the axial direction of the jig on the outer periphery of the jig and is mounted on the ring mounting portion. According to this method, the C-ring is guided and held by the outer peripheral surface of the jig up to the ring mounting portion, so that the mounting posture of the C-ring is prevented from becoming incorrect.

(Problems to be Solved by the Invention) However, in the conventional component assembling apparatus using the above-described jig, the process from supply of the component to the jig to ejection of the component from the jig and assembly to the workpiece is performed. A series of work,
Since the operation is performed using one jig, there is a problem that it takes a long time to mount components.

In view of the above, the present invention provides a component assembling apparatus that holds a component on a jig as described above, removes the component from the jig, and then assembles the component with a workpiece, in which a cycle time from component supply to component assembly can be reduced. It is intended to provide an attachment device.

(Means and Actions for Solving the Problems) The component assembling apparatus of the present invention uses a plurality of jigs as described above, supplies components to the jig, and discharges components from the jig to work. The assembly work and the assembly work are performed separately from each other so that the cycle time from component supply to component assembly can be shortened. Specifically, it has a plurality of component receivers, and each component receiver is Parts supply position,
An index table that intermittently rotates so as to sequentially feed to a jig supply position and a jig discharge position and stop at each position; a component supply unit that supplies components to the component receiving unit stopped by the component supply device; It has a component holding part that is shaped to match the receiving part and also to the part assembling part of the work to which the part is to be assembled, and operates by an external operation to remove the part held by this holding part. After a jig is supplied to a plurality of jigs having a component discharging mechanism for discharging and a component receiving portion stopped at the jig supply position, the component supplied to the component receiving portion is moved. A component transfer means for transferring the jig to the component holding portion of the jig aligned with the component receiving portion, and supplying the jig to the component receiving portion at the jig supply position;
The jig moved to the jig discharging position by the index table is taken out from the jig discharging position, and the jig is transported to a position where the component holding portion matches the component mounting portion of the work. An assembly robot that operates the component ejection mechanism of, ejects the component held by the jig holding unit from the jig, and assembles the component into the component assembly unit of the work.
The component receiving portion is shaped to fit with the inner periphery of the ring-shaped component, and the component transfer means moves the ring-shaped component fitted to the component receiving portion in the direction of its central axis. The component holding portion of the jig is fitted to the component receiving portion from the outside, and is configured as a ring holding cylinder that fits with the inner periphery of the ring-shaped component moved by the component transfer means, The component discharging mechanism of the jig is operated so as to move to one end face side of the holding cylinder along the outer periphery of the ring holding cylinder, and the ring-shaped component fitted to the ring holding cylinder is moved to the one end face. When the assembling robot assembles the ring-shaped part to a part assembling part having a circular cross section of the work, the ring-shaped part is fitted as a ring discharging member that is pushed out of the ring holding cylinder and pushed out of the ring holding cylinder. Ring holding cylinder After being disposed coaxially with the component assembling part and arranged at a position where the axial direction of the one end face is aligned with the component assembling part, the ring discharging member is operated. is there.

In the above configuration, in a case where the ring-shaped component is attached to the component assembling portion having a circular cross section of the work, more preferably, as described in claim 2, the jig has the ring discharge member provided from the ring holding cylinder. Before dropping the ring
A ring receiving member is provided which receives the ring-shaped component which falls into the position opposite to the ring-shaped component from the one end face side of the ring-holding cylinder and falls off from the ring-holding cylinder and regulates the component in a flat state.

(Examples) Hereinafter, the present invention will be described in detail based on examples shown in the drawings.

FIG. 1 is a plan view showing a component assembling apparatus according to an embodiment of the present invention. This component assembling apparatus is, for example, for assembling two C-rings to the above-described clutch drum, and supplies an index table 10 and a C-ring as an assembly part to the index table 10 one by one. Feeder 20 and first and second two jigs
41 and 42, and an assembling robot 80. In the vicinity of the index table 10, a drum loader 90 for feeding out the clutch drums 5, each of which is a work on which a C-ring is to be assembled, and a sealant applicator for applying a sealant to the C-ring mounting portion of the clutch drum 5. 95 and are arranged.

FIG. 2 is a side view showing the apparatus of this embodiment as viewed from the right side of FIG. 1, and FIG. 3 shows a side view of the index table 10. Hereinafter, the index table 10 will be described in detail with reference to FIG.
On the upper surface of the index table 10, two first ring receivers 11 and two second ring receivers 12 are fixed. These first ring receiving portion 11 and second ring receiving portion
Reference numeral 12 denotes a substantially cylindrical shape, in which the first ring receiving portions 11 and the second ring receiving portions 12 are arranged alternately at intervals of 90 ° on the same circumference. The index table 10 is formed so as to rotate intermittently by 90 ° in the clockwise direction in FIG. 1 about the center axis A as the center of rotation.
The ring receiving portion 11 or the second ring receiving portion 12 includes a right end position P1 (component supply position), a lower end position P2, and a left end position P3 in FIG.
(The jig supply position) and the upper end position P4 (the jig discharge position). As shown in FIG. 3, the first ring receiving portion 11 and the second ring receiving portion 12 are respectively cylindrical portions 11a, 1a.
There are cylindrical portions 11c and 12c slightly thicker than the lower portion of 2a, and upper end surfaces of the cylindrical portions 11c and 12c are step portions 11b and 12b. At the component supply position P1, the substantially annular C-rings 6 having an abutment are supplied one by one so as to be loosely fitted on the outer periphery of the cylindrical portion 11a or 12a. The C-ring 6 thus supplied is received at the step 11b or 12b. The C ring 6 is made of Teflon as an example.

Hereinafter, the supply of the C-ring 6 will be described with reference to FIGS. 1 and 2 and FIG. 9 showing the component feeder 20 in detail.

The head 100 of the component feeder 20 is movable along a guide rail 101 shown in FIG. 1, and is moved by a drive unit 102 between a ring receiving position shown in FIG. 1 and a position above the component feed position P1. Reciprocating between Below the head 100, two magazines 103 extending vertically.
A magazine table 104 to which a and 103b are fixed is provided. The magazine table 104 is movable along the guide rail 105 in the direction in which the two magazines 103a and 103b are arranged. The drive unit 106 allows one magazine 103a to be positioned below the head 100, and The magazine 103b is reciprocated to and from a position below the head 100. FIG. 9 shows the part of the head 100 in detail.
As shown in the figure, the head 100
It is attached to a frame 107 which is reciprocated by 02 so as to be movable up and down along a rail. The cylinder 110 is mounted on the mount 107 with the piston rod 109 facing downward.
Is fixed, and a head substrate 111 is connected to the tip of the piston rod 109. Therefore, when the piston rod 109 is extended and contracted, the head 100 descends and rises.

The substrate 111 of the head 100 has another cylinder 112
However, the piston rod 113 is fixed facing downward. Guide rod 1 connected to this piston rod 113
A bearing 115 is slidably fitted to the bearing. A coil spring 117 is contracted between the stopper 116 fixed to the guide rod 114 and the bearing 115, and the bearing 115
Is fixed to the up-and-down moving part 118. This vertical moving part 118
Is slidably combined with a guide rod 119 extending downward from the substrate 111 via a bearing 120. Therefore, when the piston rod 113 is extended and contracted, the vertically moving part 118 is lowered and raised. The vertical moving portion 118 has a shape in which a part (upper right portion in FIG. 9) of a cylindrical member is cut out.
Is arranged. The sector gear 121 has a pinion gear 123 rotated by a motor 122 fixed to the substrate 111.
The pitch circle is arranged so as to be coaxial with the guide rod 119. And this sector gear 12
1 is fixed to a disk 124 and is rotatable around a guide rod 119 together with the disk 124. A disk 125 is disposed below the disk 124, and the disk 125 is
Is fixed coaxially. A plurality of guide grooves 126 extending radially (e.g., 4
And a pin 127 is inserted into each guide groove 126. A claw 128 disposed below the disk 125 is fixed to each of the pins 127, and an upper end of the pin 127 is inserted into a copying groove 129 formed on the lower surface of the rotating disk 124. ing. When the disk 124 is rotated by the motor 122 via the pinion gear 123 and the sector gear 121, the copying groove 129 allows the pin 127 to move along the guide groove
It is shaped to move in the radial direction of 5. In this manner, the plurality of claws 128 are moved between the radial inner end position and the outer end position of the disk 125 by the forward / reverse rotation of the motor 122. A forward rotation amount and a reverse rotation amount of the motor 122 that define the inner end position and the outer end position are determined by a proximity switch that detects a rotation position by a rotation member 132 fixed to a rotation shaft 131 of the motor 122. 1
The rotation is detected by 33 and 134, respectively, and at the time of the detection, the forward rotation or the reverse rotation of the motor 122 is stopped. Further, a ring pressing member 130 is fixed to an outer peripheral portion of the substantially cylindrical vertical moving portion 118.

When supplying the C-ring 6 to the first ring receiving portion 11 or the second ring receiving portion 12, the head 100 is set to the position shown in FIG. One of the magazines 103a and 103b in which a large number of C-rings 6 are stacked and held in the vertical direction is arranged so as to be coaxial with the guide rod 119 of the head 100 (the magazine 103a is located at that position in FIG. 2). ). At this time, the claw 128 of the head 100 is set at the aforementioned inner end position. Next, the cylinder 110 is driven, and the entire head 100 is lowered to a predetermined position. At this time, the lower portion of the claw 128 enters the inner hole of the uppermost C ring 6 of the magazine 103a or 103b, and the lower surface of the projection 128a on the outer peripheral portion of the claw 128 is
In contact with the upper surface of In this state, the motor 122 is driven, and each claw 128 is moved to the above-described outer end position. As a result, the diameter of the C ring 6 is slightly increased by the claws 128, and the C ring 6 is elastically fitted to the claws 128, and is prevented from falling by the lower end of the ring pressing member 130 facing inward. And is held by the head 100.

The head 100 is pulled up to a predetermined position by driving the cylinder 110, and is then moved to the left in FIG. 1 to stop at the component supply position P1.
Alternatively, it is stopped at a position above the second ring receiver 12. Next, the cylinder 110 is driven, and the head 100 is lowered to a position where the C ring 6 held there is close to the first ring receiving portion 11 or the second ring receiving portion 12. And nails 12
8 is now returned to the inner end position. Then, the held C-ring 6 falls and fits loosely around the first ring receiving portion 11 or the second ring receiving portion 12. Then the cylinder
The 112 is driven, and the vertically moving part 118 is lowered. The vertically moving portion 118 moves downward around the first ring receiving portion 11 or the second ring receiving portion 12, and pushes the C ring 6 loosely fitted therein to the step portion 11b or 12b.

Thereafter, the vertical moving portion 118 and the entire head 100 are pulled up to their original positions, and the head 100 is moved to the magazine 103a or 103
It is returned to the position above b. Thereafter, the above-described operation is repeated, and the C-ring 6 is alternately supplied to the first ring receiver 11 and the second ring receiver 12.

When one C-ring 6 is taken out from the magazine 103a or 103b as described above, the lifting device 140 (see FIG. 1) is moved to the lower ring receiving member 103d of the magazine.
(The magazine 103b is shown in FIG. 2) by the thickness of the C-ring 6. By doing so, the height position of the uppermost C-ring 6 in the magazine is kept constant. When all the C-rings 6 of the magazine 103a are taken out, the magazine base 104 is moved upward in FIG.
Another magazine 103b is located below the head 100. Therefore, the C ring 6 can be continuously supplied from the magazine 103b, and a new C ring 6 can be supplied to the magazine 103a while the magazine 103b is being used. When the magazine 103b is empty, the magazine base 104 is moved downward in FIG. 1, and the C ring 6 is supplied to the magazine 103b in the same manner as described above.

As described above, the first ring receiving portion 11 or the second ring receiving portion 12 to which the C-ring 6 is supplied moves to the jig supply position P3 when the index table 10 rotates by 180 °.
(See FIG. 1). In this position, below the index table 10, a ring transfer device 60 as shown in FIG. 4 is provided. This ring transfer machine 60 has a base
A vertical moving cylinder 62 fixed to 61, a push-up plate 64 fixed to the tip of a piston 63 of the vertical moving cylinder 62,
A plurality of guide members 65 fixed to the lower surface of the push-up plate 64
A plurality of guide members 66 fixed to the base 61,
The push-up plate is tightly inserted into these guide members 65 and 66.
A plurality of guide rods 67 passing through the through holes 64a of the 64;
A horizontal plate 68 fixed to the upper ends of these guide rods 67
And a ring push-up member 69 fixed to the upper surface of the horizontal plate 68.
And When the guide member 65 slides with respect to the guide rod 67, the push-up plate 64
It can move up and down relative to 67. However, stoppers 70 for receiving the guide members 65 from below are fixed to the guide rods 67, respectively.
Since the coil spring 71 is compressed between the horizontal plate 64 and the horizontal plate 68, when the piston 63 of the vertical cylinder 62 is expanded and contracted,
Unless force is applied from the outside, the guide rod 67 moves up and down together with the push-up plate 64. The push-up member 69 has a shape in which the peripheral wall portion of the bottomed cylindrical member is cut out at four places, and four vertical members extend upward.

As shown in FIG. 3, the index table 10 is provided with four elongated through holes 13 around each of the first ring receiving portion 11 and the second ring receiving portion 12, and the piston 63 is When extended, the push-up member 69 composed of four vertical members passes through the through holes 13 upward. On the other hand, each of the cylindrical portions 11c and 12c of the first ring receiving portion 11 and the second ring receiving portion 12 has four cuts having the same diameter as the upper cylindrical portions 11a and 12a of the step portions 11b and 12b, respectively. 11d, 12d
The push-up member 69, which has passed through the through-hole 13 as described above, moves upward along the cylindrical portions 11a, 12b through the cut portions 11d, 12d. .

Hereinafter, the C-ring 6 is transferred by the ring transfer device 60 having the above-described configuration.
The operation of transferring from the first ring receiving portion 11 to the first jig 41 or from the second ring receiving portion 12 to the second jig 42 will be described. In FIG. 3, the first ring receiving portion 11 or the second ring receiving portion 12 at the jig supply position p3 is shown on the leftmost side of the index table 10. That is, in this portion, the first ring receiving portion 11 and the first
The jig 41 is shown, and the second ring receiving portion 12 and the second jig are shown on the right side.
42 is shown. The first jig 41 includes a substantially cylindrical ring holding cylinder 45 integrated with the jig base 44 via a connecting rod 43.
And a ring discharging member 47 arranged outside the ring holding cylinder 45, and a guide pin 49 fixed to the ring holding cylinder 45 and protruding downward. The ring discharge member 47 is a cylindrical lower part having an inner diameter slightly larger than the outer diameter of the ring holding cylinder 45.
47a. Two guide rods 50 are fixed to the ring holding cylinder 45, and these guide rods 50 are inserted into guide members 51 fixed to the ring discharge member 47. Therefore, the ring discharge member 47 is
Along with the ring holding cylinder 45 so as to be vertically movable. However, since the coil spring 52 is contracted between the ring discharge member 47 and the ring holding cylinder 45, the ring discharge member 47 moves the upper end surface of the guide member 51 to the end of the guide rod 50 in a state where no external force is applied. Stopper 50
It is pushed up by the coil spring 52 until it comes into contact with a from below, and maintains a predetermined relative position (the position shown in FIG. 3) with respect to the ring holding cylinder 45. On the other hand, the second jig 42 includes the same connecting rod 43, jig base 44, guide pin 49, guide rod 50, guide member 51, and coil spring as described above.
52, and a ring holding cylinder 4 similar to the ring holding cylinder 45.
6, and a ring discharge member 48 similar to the ring discharge member 47
have. The peripheral wall of the ring holding cylinder 46 of the second jig 42 is shorter than that of the ring holding cylinder 45 of the first jig 41, and the ring discharging member 48 is correspondingly compared with the ring discharging member 47. It has a shorter shape.

The first jig 41 and the second jig 42 described above have a thick disk-shaped grip 53 at the upper end thereof, and an annular groove 53a is formed on the outer peripheral surface of the grip 53. . The first jig 41 and the second jig 42 are held by the assembling robot 80 by inserting the four hands 81 of the assembling robot 80 moving as described later into the annular groove 53a. And
On the first ring receiving portion 11 or the second ring receiving portion 12 at the jig supply position P3 (the first jig 41 is placed on the first ring receiving portion 11,
The second jig 42 is placed on the second ring receiving portion 12). At this time, as shown in FIG.
The jigs 11 and 12 enter the guide holes 14 provided in the center portions of the 11 and the second ring receiving portions 12 to position the jigs 11 and 12, and the members 45a and 4 extending horizontally inside the ring holding cylinders 45 and 46, respectively.
6a is seated on the upper end surface of the first ring receiving portion 11 or the second ring receiving portion 12. At this time, the ring holding cylinders 45 and 46 come into close contact with the outer peripheral surfaces of the first ring receiving portion 11 and the second ring receiving portion 12 from the outside. After placing the first jig 41 or the second jig 42 on the first ring receiving portion 11 or the second ring receiving portion 12 as described above, the assembling robot 80 releases the grip by the hand 81, Move away from the first ring receiver 11 or the second ring receiver 12.

After the first jig 41 is placed on the first ring receiving portion 11 or the second jig 42 is placed on the second ring receiving portion 12, the ring transfer device 60 shown in FIG. The cylinder 62 is driven, and the piston 63 is extended. Then, as described above, the push-up member 69 penetrates upward through the through hole 13 of the index table 10 and is received on the step 11b of the first ring receiver 11 or the step 12b of the second ring receiver 12. C ring 6
Is pushed up by the upper end surface of the push-up member 69. The C-ring 6 moves upward along the cylindrical portion 11a of the first ring receiving portion 11 or the cylindrical portion 12a of the second ring receiving portion 12, and is connected to the portion 11a or 12a from above. It is transferred onto the outer peripheral surface of the holding cylinder 45 or 46. Note that the lower ends of the ring holding cylinders 45 and 46 have a wedge-shaped cross-sectional shape as shown in the figure, and therefore, the first ring receiving section 11 to the ring holding cylinder 45 or the second ring receiving section 12 are formed.
The transfer of the C-ring 6 from the to the ring holding cylinder 46 can be performed smoothly. C ring 6 pushed up as described above
Abuts on the lower end surface of the ring discharge member 47 or 48,
Therefore, the lifting of the push-up member 69 is restricted, and the push-up plate 64 slightly moves (rises) relative to the push-up member 69 while compressing the coil spring 71. When the push-up member 69 is raised to the upper limit position, the operation piece 72 fixed to one guide rod 67 operates the limit switch 73 or 74, and the operation of the vertical cylinder 62 is stopped there. Next, the vertically moving cylinder 62 operates to contract the piston 63, and lowers the push-up member 69 to the standby position shown in FIG.
When transferring the C ring 6 from the first ring receiving portion 11 to the first jig 41, the lower limit switch 73 moves the C ring 6 from the second ring receiving portion 12 to the first jig 41. When loading, when the upper limit switch 74 is operated, the drive of the vertical cylinder 62 is switched as described above. The diameters of the outer peripheral surfaces of the ring holding cylinders 45 and 46 are set slightly larger than the inner diameter of the C ring 6, so that the C ring 6 is slightly expanded in the radial direction, It will be held at 46.

As described above, the first jig 41 or the second jig 42
After the C ring 6 is transferred to the index table 10
Is 90 while receiving the first jig 41 or the second jig 42
゜ Rotate the index. Thereby, the first jig 41
Alternatively, the second jig 42 is located at the jig discharge position P4 (see FIG. 1).
Sent to

The clutch drums 5, which are works, are supplied one by one to a sealant application position (a position indicated by an arrow B) by a drum loader 90 shown in FIG. 1 with an open end thereof facing upward. In other words, this clutch drum 5 has, for example, 5 × 4 rows of a total
5 are simultaneously sent from the trolley 92 to the traverse position (the position indicated by the arrow C) by the rotary arm 93. At the traverse position C, the leftmost one in FIG.
The two clutch drums 5 are held by the holding portion 90a of the drum loader 90, and then the holding portion 90a is
By moving upward in FIG. 1 along 0b, it is sent to the sealant application position B. Therefore, the holding section 90a releases the holding of the clutch drum 5, and returns to the original position.
The remaining four clutch drums 5 at the transverse feed position C are transported one by one to the left in FIG. 1 by known transverse feed means (not shown), and are held by the holding unit 90a as described above. Sent to When all of the five clutch drums 5 in one row are sent out to the sealant application position B, the next five clutch drums 5 in one row are transported to the transverse feed position C as described above.

The ring mounting groove (shown by 5a and 5b in FIG. 5) of the clutch drum 5 placed at the sealant application position B has a seal moving in the left-right direction along the guide rail 96 in FIG. The sealant is applied by the agent applying machine 95.

The clutch drum 5 thus coated with the sealing agent
Is sent to the ring assembling position D by the assembling robot 80 described above. Here, the assembling robot 80 will be described in detail with reference to FIG. 1 and FIG. The assembling robot 80 has a hand unit 82 having the four hands 81 described above. The hand unit 82 can be moved in the Z direction (vertical direction) by a Z moving mechanism 80Z. Can be moved in the Y direction (horizontal direction in FIG. 1) by a Y moving mechanism 80Y, and this Y moving mechanism 80Y can be moved in the X direction (vertical direction in FIG. 1) by an X moving mechanism 80X. I have. Thus, the hand unit 82 can be moved three-dimensionally in the X, Y, and Z directions. The assembling robot 80 holds the clutch drum 5 by inserting the hand 81 into an annular groove 5c (see FIG. 5) formed in the center hub portion of the clutch drum 5, and transports the clutch drum 5 as described above. .

When the assembling robot 80 conveys the clutch drum 5 to the ring assembling position D, the hand 81 is opened there and the clutch drum 5 is placed at the position D. Next, the assembling robot 80
The hand unit 82 is moved to a position above the first jig 41 that has been moved to the jig discharge position P4 by the index table 10,
The hand 81 is inserted into the annular groove 53a of the grip 53 of the first jig 41 to hold the first jig 41. Next, the assembling robot 80 raises the hand unit 82 to remove the first jig 41 from the first ring receiving unit 11. When the first jig 41 is discharged from the first ring receiving portion 11 in this manner, the index table 10
第 The second rotating index, receiving the second jig 42
The ring receiver 12 comes to the jig discharge position P4. Next, the assembling robot 80 moves the hand unit 82 to a position above the clutch drum 5 at the ring assembling position D, and at this position, the hand unit 82
Is lowered. Thereby, the ring holding cylinder of the first jig 41
The C ring 6 held at 45 is mounted in the ring mounting groove 5a of the clutch drum 5.

Hereinafter, the ring mounting will be described in detail with reference to FIGS. In FIGS. 5 and 6,
The first jig 41 is shown on the left side of the center line, and the second jig 42 is shown on the right side of the center line. The first jig 41 has an outer cylinder 54 having a bottomed cylindrical shape with an open lower side on the outermost side, and the gripping portion 53 described above is fixed to the outer cylinder 54. As shown in FIG. 6, two guide rods 55 extending downward are fixed to the horizontally extending substrate 54a of the outer cylinder 54. These guide rods 55
It is inserted into two guide members 56 fixed to the upper surface of the jig base 44. Therefore, the outer cylinder 54 is
Relative to the vertical direction. A coil spring 57 is contracted between the substrate 54a and the jig base 44, and the stopper 55a fixed to the lower end of the guide rod 55 is attached to the jig base when no external force is applied. It is pushed up by the coil spring 57 to a position where it comes into contact with the lower surface of 44, and maintains this relative position with respect to the jig base 44 (the state shown in FIG. 3).

As shown in FIG. 5, two guide members 58 are fixed on the upper surface of the substrate 54a of the outer cylinder 54 at an angle of 90 ° with respect to the guide rod 55 around the center axis thereof. I have. Guide rods 59 are inserted into the guide rods 58, respectively, and the push-down members 30 are fixed to the lower ends of the guide rods 59. Therefore, the push-down member 30 is vertically movable relative to the outer cylinder 54. The coil spring 31 is compressed between the pressing member 30 and the substrate 54a, and when no external force is applied, the pressing member 30 has a stopper 59a fixed to the upper end of the guide rod 59. It is pushed down by the coil spring 31 until it comes into contact with the upper surface of 58, and maintains this relative position with respect to the outer cylinder 54 (the state shown in FIG. 3).

As shown in FIG. 5, four arms 33 are attached to the outer end of the jig base 44 so as to be swingable about the swing shaft 32. These arms 33 are arranged at equal angular intervals around the central axis of the first jig 41. The other end of the coil spring 34 whose one end is hung on the jig base 44 is hung on the upper end of each arm 33.
Is urged so that the lower end portion is expanded outward. If the arm 33 thus urged is not subjected to an external force, as shown in FIG. 3, the inside of the upper end portion maintains a position where it comes into contact with the stopper 38 fixed to the jig base 44. A roller 35 is attached to each arm 33 slightly below the pivot shaft, while a ring receiving member 36 is attached to the lower end. As shown in detail in FIG. 7, the ring receiving member 36 has a slide portion 36a on an inverted trapezoidal cross section which engages with a slide groove 33a provided at the lower end of the arm 33 so as to extend toward the center of the jig. A receiving plate 36b which extends horizontally below the lower portion of the slide portion 36a;
And a spring retaining portion 36c that stands upright at the outer end. The other end of the coil spring 37, one end of which is hooked to the arm 33, is hooked to the spring hook 36c, whereby the ring receiving member 36 is urged toward the center of the first jig 41. ing.

On the other hand, as shown in FIG. 6, on the outer peripheral portion of the ring discharge member 47, four arm shaft supports 47a are provided at equal angular intervals around the center axis of the first jig 41, and these arm shaft supports 47a Each of the arms 76 is attached so as to be swingable about a swing shaft 75. The four arms 76 and the four arms 33 are arranged around the center axis of the first jig 41 by being shifted from each other by 45 °. A roller 77 is attached to each of the arms 76 slightly below the pivot shaft 75, and a spring receiving pin 76a extending toward the center of the first jig 41 is provided further below the roller 77. I have. The ring discharge member 47 is provided with a spring receiving pin 47e projecting from the spring receiving pin 76a.
A coil spring 78 is compressed between the arm and the arm 76 so that both ends are held by the spring receiving pins 76a and 47e. Thereby, the arm 76 is urged so that the lower end portion expands outward. A substantially L-shaped push member receiver 79 is fixed to the ring discharge member 47 at a position facing the lower end of the arm 76. This push member receiver 79
As shown in FIG. 8, the lower portion has a convex portion 79a having a trapezoidal cross section extending toward the central axis of the first jig 41, and the ring pressing member 85 is engaged with the convex portion 79a. I have. The ring pressing member 85 is slidable in the jig radial direction along the projection 79a. And in the lower part of this ring pushing member 85,
The other end of the coil spring 86 whose one end is locked to the lower end of the arm 76 is locked so that the ring pressing member 85
Is always urged to abut the inside of the arm 76.

When the first jig 41 having the above-described structure is moved down from above the clutch drum 5 at the ring assembling position D by the assembling robot 80 as described above, first, the guide pin 49 at the center thereof is engaged with the clutch. The first jig 41 enters the hole 5g at the center of the drum 5 and is coaxially aligned with the clutch drum 5. When the first jig 41 is further lowered, the horizontal member 45a inside the ring holding cylinder 45 is
Sit on the upper surface 5h of the central hub. Then, the assembling robot 80 further pushes the first jig 41 downward, but the jig base 44 integrated with the ring holding cylinder 45 cannot be further lowered. Moves relatively downward. Then, since the inner peripheral surface of the lower end portion of the outer cylinder 54 pushes the arm 33 inward via the roller 35, the arm 33 becomes vertical, and the ring receiving plate 36b is in a horizontal state on the outer peripheral surface of the hub portion of the clutch drum 5. Abut. By the action of the coil spring 37, the ring receiving plate 36b elastically contacts the outer peripheral surface. Here, the length of the arm 33 is
The upper surface of 36b is the annular ring mounting groove 5 of the clutch drum 5.
It has a length that matches the lower end of a.

Further, when the assembling robot 80 pushes the first jig 41 downward,
The pressing member 30 pushes the upper end surface of the ring discharging member 47, and the ring discharging member 47 moves relatively downward with respect to the ring holding cylinder 45. Therefore, the C-ring 6, which has been expanded and held on the outer peripheral surface of the ring holding cylinder 45, is pushed by the lower end surface of the ring discharge member 47 and slides downward on the outer peripheral surface,
Eventually, it comes off from this ring holding cylinder 45 and the ring receiving plate 36
It is fitted into the ring mounting groove 5a while being positioned by the upper surface of b (the state shown in FIG. 6). At this time, the outer cylinder 54 that has been moving downward pushes the arm 76 inward via the roller 77, so that the ring pushing member 85 pushes the C ring 6 toward the center thereof. When the C ring 6 which has been expanded and held on the outer peripheral surface of the ring holding cylinder 45 is detached from the ring holding cylinder 45, the diameter of the C ring 6 is originally reduced by its own elasticity and tightly fits in the ring mounting groove 5a. However, the C-ring 6 made of Teflon as in this example has a relatively low elasticity, so that the C-ring 6 is likely to be poorly fitted into the ring mounting groove 5a. However, as in the present apparatus, a plurality of (four in this embodiment) ring receiving plates 36b
Accordingly, if the C ring 6 is received from below, and the C ring 6 is completely flat without being displaced at the abutment portion and the ring is mounted, it is possible to prevent the occurrence of mounting failure. Further, as in the present embodiment, the ring pressing member 85
By pushing the C ring 6 toward the center using
The ring is mounted more reliably.

When the C ring 6 is mounted in the ring mounting groove 5a of the clutch drum 5 as described above, the assembling robot 80
Rises, and pulls the first jig 41 upward from the clutch drum 5. As a result, the first jig 41 returns to the state shown in FIG. The assembling robot 80 places the first jig 41 on the first ring receiver 11 at the jig supply position P3 of the index table 10. On the first jig 41 returned here, the C ring 6 is transferred from the first ring receiving portion 11 as described above. Then, the assembling robot 80 moves to the second ring receiving portion 12 located at the jig discharging position P4, and the second jig 42 placed on the second ring receiving portion 12 is moved by the hand 81. Hold, and then raise the second jig 42
Take it out from the ring receiver 12. Thereafter, the index table 10 is rotated by 90 ° index, and the first jig 41 on which the C ring 6 is transferred as described above is sent to the jig discharge position P4.

The assembling robot 80 holding the second jig 42 places the second jig 42 on the clutch drum 5 (the C-ring 6 is already mounted in the ring mounting groove 5a) at the ring mounting position D. And the hand unit 82 is lowered at this position. As a result, the C ring 6 held by the holding cylinder 47 of the second jig 42 is mounted in the other ring mounting groove 5b of the clutch drum 5. As described above, this second jig
The ring holding cylinder 46 and the ring discharging member 48 of the first jig 41 are respectively
The lengths of the arms 87 and 88 of the second jig 42 are respectively different from the lengths of the arms 33 and 76 of the first jig 41 (see FIGS. 5 and 6). .
That is, these arms 87 and 88 are provided with the C-ring 6 in the ring mounting groove 5b located at a position higher than the ring mounting groove 5a.
It is set to a length that can be attached. Except for the points described above, the second jig 42 is formed in the same manner as the first jig 41, and the ring mounting groove 5b of the C ring 6 held by the second jig 42
The attachment to the camera is performed in exactly the same manner as described above.

After mounting the C-ring 6 in the ring mounting groove 5b, the assembling robot 80 returns the second jig 42 to the second ring receiving portion 12 at the jig supply position P3 of the index table 10, and
The clutch drum 5 on which the C ring 6 is mounted is taken out from the ring assembling position D, and is conveyed to the drum discharging position G on the conveyor 99 (see FIG. 1). The clutch drum 5 conveyed here is intermittently conveyed to the left side in FIG. 1 by a conveyor 99 at a predetermined conveyance pitch, and is sequentially sent to the next step. After discharging the clutch drum 5 to the above-mentioned drum discharge position G, the assembling robot 80 moves to the sealant application position B, holds the clutch drum 5 on which the sealant has been applied, and assembles the clutch drum 5 with a ring. It is transported to the position D. Thereafter, the operation described above is repeated, and the mounting of the C ring 6 to the clutch drum 5 is performed one after another.

The component assembling apparatus of the embodiment described above is configured to assemble two parts (C ring 6) on one work (clutch drum 5). Of course, it is also possible to configure so that one part is assembled to one work, and three or more parts are assembled to one work.

(Effects of the Invention) As described in detail above, in the component assembling apparatus of the present invention, a plurality of jigs are used, and the component supply to the jig and the component assembling from the jig to the work are independent of each other. Cycle time from component supply to component assembly can be shortened compared to conventional equipment,
Therefore, according to the present apparatus, the efficiency of the part assembling work on the work can be improved.

Further, in the component assembling apparatus according to the present invention, particularly, the work of assembling the ring-shaped component to the work, which is likely to be erroneous, can be performed reliably and efficiently. In the component assembling apparatus according to the second aspect of the present invention, a ring receiving member for receiving the ring-shaped component falling off from the ring holding cylinder and defining the component in a flat state is provided. The bending of the part can be prevented, and the work of assembling the part to the work can be performed more reliably and efficiently.

In particular, in the component assembling apparatus according to the present invention described in claim 3, a ring receiving member that receives the ring-shaped component falling off from the ring holding cylinder and defines the component in a flat state is provided. Thus, the bending of the ring-shaped component can be prevented, and the work of assembling the component to the workpiece can be performed more reliably and efficiently.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing an embodiment of the present invention, FIG. 2 is a partial side view of the above embodiment, FIG. 3 is a partially cutaway side view showing an index table of the above embodiment. FIG. 4 is a partially cutaway side view showing a part transfer means of the above-mentioned embodiment apparatus. FIGS. 5 and 6 are side sectional views showing the jig of the above-mentioned embodiment apparatus at different portions, respectively. 7 is a view taken in the direction of the arrow H in FIG. 5, FIG. 8 is a view taken in the direction of the arrow J in FIG. 6, and FIG. 9 is a component feeder used in the apparatus of the embodiment. FIG. 5 Clutch drum, 5a, 5b Ring mounting groove 6 C-ring, 10 Index table 11 First ring receiving part, 12 Second ring receiving part 20 Part supply machine, 30 ... Depressing members 33, 76, 87, 88 ... Arms 36 ... Ring receiving members, 41 ... First jig 42 ... Second jigs, 45, 46 ... Ring holding cylinders 47, 48 ... Ring discharge member, 49 Guide pin 54 Outer cylinder 60 Ring transfer device 69 Push-up member 80 Assembly robot 81 Hand 85 Press ring member

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshiaki Uetake 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Co., Ltd. (72) Koji Uchida 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Co., Ltd. (56) References JP-A-64-58433 (JP, A) JP-A-64-58435 (JP, A) JP-A-62-9837 (JP, A) JP-A-61-95834 (JP, A) JP, A) Japanese Utility Model 63-166324 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B23P 19/02 B23P 19/06 B23P 19/00 301 B23P 21/00 305

Claims (2)

(57) [Claims] An index table having a plurality of component receiving portions, intermittently rotating so that each component receiving portion is sequentially sent to a component supply position, a jig supply position, and a jig discharge position and stopped at each position; A component supply means for supplying a component to the component receiving portion stopped at the component supply position; and a component having a shape that matches with the component receiving portion, but also matches with a component mounting portion of a work to which the component is mounted. It has a holding part and operates by operation from outside,
After the jig is supplied to a plurality of jigs provided with a component discharging mechanism for discharging the components held by the holding portion and the component receiving portion stopped at the jig supply position, A component transfer means for moving the component supplied to the component receiving portion and transferring the component to the component holding portion of the jig aligned with the component receiving portion; The jig moved to the jig discharging position by the index table is taken out from the jig discharging position while being supplied to the receiving portion, and the jig is moved to a position where the component holding portion matches the component mounting portion of the work. Transporting the jig, and then operating a component ejection mechanism of the jig to eject the component held by the jig holding unit from the jig and assembling the component with the component assembling unit. The receiving part is shaped to fit with the inner circumference of the ring-shaped part. The component transferring means is configured to move the ring-shaped component fitted to the component receiving portion in the central axis direction, and the component holding portion of the jig is fitted to the component receiving portion from outside. And a ring holding cylinder fitted to the inner periphery of the ring-shaped component moved by the component transfer means, and the component discharging mechanism of the jig holds the holding member along the outer periphery of the ring holding cylinder. Operated to move to one end face side of the cylinder, it is configured as a ring discharge member that pushes the ring-shaped component fitted to the ring holding cylinder to a position beyond the one end face and drops off from the ring holding cylinder, When the assembling robot assembles the ring-shaped component to a component assembling portion having a circular cross section of a workpiece, the ring holding cylinder holding and fitting the ring-shaped component is coaxial with the component assembling portion and the one end face is coaxial. The axial position of the part After placed in a position aligned with the attachment portions, parts assembling apparatus characterized by being configured to operate the ring discharge member. 2. The ring holding member enters the jig into a position facing the ring-shaped component from one end face side of the ring-holding cylinder before the ring discharge member drops the ring-shaped component from the ring-holding cylinder. 2. A component assembling apparatus according to claim 1, further comprising a ring receiving member for receiving the ring-shaped component falling from the cylinder and defining the component in a flat state.