JPH0134740B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a circlip mounting device, and more particularly to a circlip mounting device in which a circlip is supplied to an assembling mechanism by a supply mechanism, and the circlip is mounted in an annular groove of a workpiece by the assembling mechanism.

Conventionally, this type of device was disclosed in Japanese Patent Application Laid-Open No. 58-40235.
The one described in the No. Publication is known.

However, since the conventional device is configured to have both the functions of holding and attaching the circlip, the structure is complicated and the cost is high, and the holding position and the attaching position of the circlip are 90 degrees. Since the circlip holding and mounting cylinder is swung between the two positions, it is difficult to position the circlip relative to the workpiece due to inertia acting on the cylinder.

An object of the present invention is to provide the above-mentioned device capable of solving the above-mentioned problems. An assembly comprising an engaging rod to which a circlip is engaged from the outer circumferential side thereof, and an extrusion sleeve that is slidably fitted to the outer circumferential surface of the engaging rod and attaches the annular groove by pushing out the circlip. and a supply mechanism for engaging the circlip with the engagement rod of the assembly mechanism from the outer circumferential side thereof, the supply mechanism includes a drive source, and a drive force of the drive source to engage the engagement rod with the circlip. A movable member that moves forward and backward with respect to the engaging rod in a direction perpendicular to the axial direction of the engaging rod, a rocking plate provided on the movable member so as to swing in the axial direction of the engaging rod, and A gripping member is provided, which grips the outer peripheral surface of the circlip and directs the cutout portion of the circlip toward the outer peripheral surface of the engagement rod, and slides a sliding body provided on the rocking plate, thereby controlling the movable member. In order to hold the oscillating plate immovably until the gripping member engages the circlip with the engagement rod during forward movement, the oscillating plate is guided in parallel to the direction in which the movable member advances and retreats; When the movable member is retracted, a guide member that returns the rocking plate to its pre-swinging position and the circlip are engaged with the engagement rod, and then the rocking plate is rocked to separate the gripping member from the circlip. and a spring member for moving the push-out sleeve out of the sliding path, and the guide member includes a first sliding guide surface parallel to the moving direction of the movable member and an engaging rod side of the first sliding guide surface. a member main body having a second sliding guide surface for returning the rocking plate posture that is connected to an end edge and inclined with respect to the first sliding guide surface; In order to form an extended guide surface, one end is brought into contact with a connecting portion of the second sliding guide surface on the side of the first sliding guide surface, and when the movable member retreats, it is pushed by the sliding body to form the impact. It is characterized by comprising a rotary plate that releases the contact.

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, an assembly mechanism 4 for attaching a circlip L to a rod-shaped workpiece W is provided at the bottom of a base frame 1. Also, at the top of the base frame 1,
An attitude adjustment mechanism 2 for adjusting the attitude of the circlip L is diagonally above the assembly mechanism 4.
A supply mechanism 3 that receives the circlip L after attitude adjustment and supplies it to the assembly mechanism 4 is disposed directly above the circlip L.

First, the assembly mechanism 4 will be explained in detail. In FIGS. 1 and 3, the actuating cylinder 84 placed on the bottom of the base frame 1 has an engaging rod 86 disposed at its center and is slidable on the outer peripheral surface of the engaging rod 86. The extrusion sleeve 85 is fitted with the extrusion sleeve 85. The extrusion sleeve 85 includes a cylindrical body 92 constituting its tip, and a split tube 91 that is housed within the cylindrical body 92 and fits onto the outer circumferential surface of the engagement rod 86 by the diameter reducing force of a pair of ring springs 91a and 91b. and has. This split tube 91 can be moved toward the distal end side of the engagement rod 86 by being pressed by the end surface 93 of the tube body 92, and can also be moved into the engagement hole 95 of the split tube 91 from the inner peripheral surface side of the tube body 92. Protruding pin 94
It is possible to move rearward from the distal end side of the engaging rod 86 by being pressed by the engaging rod 86.

A pin 87 protruding from the outer peripheral surface of the engagement rod 86
is slidably inserted into an axial guide groove 88 formed on the inner peripheral surface of the extrusion sleeve 85, and a buffer spring 89 is interposed on the rear end side of the engagement rod 86.

When the split tube 91 is in the most retracted state from the distal end side of the engagement rod 86, the circlip L is engaged with the distal end of the engagement rod 86 protruding from the split tube 91 from the outer circumferential side sequentially from the split tube 91 side. Toribe 96,
Engagement recess 97 opening in guide peripheral surface 90 and end surface
are formed respectively. The engagement concave portion 97 engages with an engagement convex portion 98 at the tip of the workpiece W disposed coaxially with the engagement rod 86.
At the more retracted position, a circlip mounting annular groove 99 is formed on the outer peripheral surface of the workpiece W. In the illustrated example, the engagement rod 86 moves forward and backward with respect to the workpiece W by the actuating cylinder 85;
The workpiece W may be advanced or retreated relative to 6.

Next, the posture adjustment mechanism 2 will be explained in detail with reference to FIGS. 1 and 2. A support frame 6 is erected on the base surface 5 of the base frame 1, and a first guide member 7 for guiding the circlip L is attached to one side of the support frame 6. A guide gap 9 for guiding the circlip L and a guide gap 10 for guiding the sliding body 11 in a vertically reciprocating manner are formed on one side of the guide member 7. Then, the second guide body 8 is attached. Second guide body 8
A funnel portion 9a for guiding the supplied circlip L to the guide gap 9 is formed at the upper end of the circlip L.
In this way, the circlip introducing section A is constructed.

Circlip L on the front side of circlip introduction part A
Detecting device B for detecting the orientation of the missing portion of
Further, an orientation correction device C is disposed on one side of the circlip introduction section A, and an extrusion device D is disposed on the front side of the circlip introduction section A for pushing out the circlip L toward the rear from within the guide gap 9.

In FIG. 1, the first guide body 7 has an overhang portion 12 that overhangs forward, and a circlip L in a guide gap 9 is inserted rearward into a guide hole 13 formed in the front-rear direction within this overhang portion 12. An extrusion body 14 for extrusion is slidably inserted. A bent portion of a bell crank 17 is pivotally supported on a pivot portion 16 on a protrusion 15 that protrudes downward from the overhang portion 12.
The tip of one arm 18 of the bell crank 17 is connected to the front end of the extruded body 14 by a slidable pin connection so that the bell crank 17 can move relative to the front end.
The tip of the other arm 19 is connected to the sliding body 11 so as to be relatively movable by a slidable pin connection.
The intermediate portion of the arm portion 19 is pivotally supported by a pivot portion 20 located at the tip of a rod 22 of an actuating cylinder 21 whose base end portion is pivotally supported on the first guide body 7 side.

In FIGS. 1 and 2, a chute 23 for supplying the circlip L is disposed above the funnel portion 9a. Further, an operating cylinder 25 is attached to a mounting plate 24 formed at the upper end of the first guide body 7, and a rod tip of this operating cylinder 25 has a
A pushing plate 26 is attached to push the circlip L introduced into the funnel portion 9a from the chute 23 into the guide gap 9.

Detection device B has the following configuration. A support frame 27 is erected on the base 5, and an actuation cylinder 28 is supported in the left-right direction by this support frame 27. Links 31 and 32 that cooperate with each other to form parallel links are pivotally supported by a pair of pivot parts 29 and 30 on the support frame 27 that are spaced from each other in the left-right direction. Each link 3
The upper end portions of 1 and 32 are respectively pivotally supported by links 33 extending in the left-right direction. A tension spring 3 is installed between a locking portion 35 at the lower end of the link 31 and a locking portion 36 on the support frame 27 near the operating cylinder 28.
7 is interposed, and a pressing portion 38 formed at the tip of the rod of the actuating cylinder 28 is in contact with the lower end of the link 31. An orientation detection roller 3 for detecting a missing portion of the circlip L at the tip of the link 33
4 is attached, and as the operating cylinder 28 expands and contracts, the through hole 3 formed in the second guide body 8
It is possible to go in and out of the guide space 9 by passing through 4a.

The orientation correction device C has the following configuration. A motor 39 is attached to the support frame 6, and this motor 3
The output shaft 9 forms a magnetic core shaft 40, passes through the center of the electromagnetic coil 42, and projects into an opening 41 formed in the first guide body 7.

The opening 41 of the first guide body 7 and the through hole 34a of the second guide body 8 face each other, and the guide hole 13 formed in the first guide body 7 is connected to the opening 41 and the through hole 34a of the second guide body 8. It is located at the same height level as .
An extrusion hole 43 is formed in the rear part of the first guide body 7 so as to face the guide hole 13, and when the operating cylinder 21 is in the contracted state, the slide body 11 is in the raised position to guide the circlip L. Hole 1
3. Through hole 34a, opening 41 and extrusion hole 4
3, and when the operating cylinder 21 is extended as described later, the sliding body 11 is lowered, and the pushing body 14 moves to the right in FIG. 1 to push the circlip L toward the pushing hole 43. .

Next, the supply mechanism 3 will be explained in detail.

In FIGS. 1 and 3, a support frame 45 is erected on the base surface 44 of the base frame 1, and this support frame 45
A pair of guide rods 47 are provided between the mounting plate 46 formed at the upper end portion and the base surface 44, extending in the vertical direction and straddling an axis parallel to the axis of the engagement rod 86.
48 is provided, and an operating cylinder 49 as a driving source is attached to the mounting plate 46. The movable member 51 suspended by the rod 50 of the actuating cylinder 49 is slidably fitted into both guide rods 47 and 48, and is driven by the driving force of the actuating cylinder 49 in a direction perpendicular to the axial direction of the engaging rod 86. It moves forward and backward relative to the engagement rod 86, and in the example shown, moves up and down. A stopper bolt 53 is protrudingly provided on the upper surface side of the mounting plate 52 of the movable member 51 and collides with the mounting plate 46 to determine the upper limit position of the movable member 51. Bracket 54 on the bottom of the mounting plate 52
A pivot shaft 55 is provided in a relationship perpendicular to the vertical movement direction of the movable member 51 and the axial direction of the engagement rod 86, and a swing plate 56 is attached to the pivot shaft 55.
The upper end portion of the engagement rod 86 is supported so as to be swingable in the axial direction of the engagement rod 86, and hence in the left-right direction in FIG.

A tension spring 59 as a spring member is tensioned between a locking pin 57 fixed on the mounting plate 52 and a locking pin 58 protruding from the side surface of the swing plate 56. 56 is always the pivot shaft 5 in FIG.
However, when the stopper bolt 61 held by the bracket 60 protruding from the upper end of the swing plate 56 collides with the mounting plate 52, The swinging of the swinging plate 56 is restricted.

At the lower end of the rocking plate 56, a base end of a rotating arm 63 is pivotally supported by a pivot shaft 62 that projects from a flat surface thereof. A pair of gripping members 6 are attached to a pivot shaft 64 located at the tip of the rotating arm 63 and parallel to the pivot shaft 62.
5 and 66 are pivotally supported. A pair of gripping members 65 and 66 cooperate with each other to receive a temporary holding portion 67 for gripping the outer peripheral surface of the circlip L.
The tension spring 68 stretched between the gripping members 65 and 66 allows the gripping members 65 and 66 to
66 receives a biasing force so as to hold the circlip L in the temporary holding part 67.

A swinging arm 69 is protruded from the base end of the swinging arm 63, and a roller 70 pivotally supported at the tip of the swinging arm 69 is mounted on the horizontal lower surface of a guide plate 71 fixed to the support frame 45. A tension spring 73 is tensioned between the lock pin 58 on the swing plate 56 and the lock pin 72 on the swing arm 69 so as to follow the movement.

A stopper block 100 is fixed to the swing plate 56 above the pivot shaft 62, and when the swing arm 69 rotates counterclockwise in FIG. A contact plate 101 protruding from the upper edge of the swing arm 69 comes into contact with it.

A guide member G is fixed to the base frame 1, and when the movable member 51 moves forward, the guide member G slides a roller 78 as a sliding body provided on the swing plate 56 via a bracket 77. In the illustrated example, the swing plate 56 is moved in the vertical direction of the movable member 51 in order to hold the swing plate 56 unswingable until the gripping members 65 and 66 engage the circlip L with the engagement rod 86 during descent. It has a function of guiding the movable member 51 in parallel, and returning the swinging plate 56 to its pre-swinging position when the movable member 51 retreats or, in the illustrated example, rises.

The guide member G includes a first sliding guide surface 75 and a first sliding guide surface 7 parallel to the vertical movement direction of the movable member 51.
A member main body 74 having a second sliding guide surface 76 for returning the swing plate posture that is connected to the end edge on the engaging rod side of the movable member 51 and inclined with respect to the first sliding guide surface 75, and a lowering of the movable member 51. In order to form an extended guide surface of the first sliding guide surface 75, one end is brought into contact with the first sliding guide surface side connecting portion of the second sliding guide surface 76, and the movable member 51
and a rotary plate 80 that is pushed by the roller 78 to release the collision when the roller 78 is raised.

The collision and release mechanism of the rotating plate 80 is constructed as follows. Pivot shaft 7 of rocking plate 80
A tension spring 83 is tensioned between a locking pin 81 projecting from 9 and a locking pin 82 projecting from guide body 74, and the tension of the tension spring 83 realizes the collision, Further, in FIG. 3, when a counterclockwise force is applied around the pivot shaft 79 by the roller 78, the collision is released. When the actuating cylinder 49 is contracted, the roller 78 comes into contact with the first sliding guide surface 75 and holds the swinging plate 56 in a non-swingable state, thus in a substantially vertical state.

Next, the installation work of the circlip L will be explained.

In the attitude adjustment mechanism 2, when the operating cylinder 21 is in the contracted state, the operating cylinder 28 is in the extended state, and the operating cylinder 25 is in the contracted state, the circlip L is supplied into the funnel part 9a through the chute 23. Then, the operating cylinder 25
expands, and the pushing plate 26 pushes the circlip L along the guide gap 9 to the upper surface of the sliding body 11.

When the actuating cylinder 25 and the actuating cylinder 28 contract, the direction detection roller 34 moves into the guide gap 9. At this time, when the direction detection roller 34 collides with the continuous part of the circlip L,
The electromagnetic coil 42 is energized, the magnetic core shaft 40 is magnetized, and the circlip L is attracted. and magnetic core axis 4
0 is rotated by the motor 39, and when the orientation detection roller 34 detects the missing part of the circlip L,
That is, when the cutout part of the circlip L faces the guide hole 13 as shown in FIG.
8 is extended, and the operating cylinder 21 is also extended, so that the direction detection roller 34 moves between the guides 9 and 9.
After the sliding body 11 is lowered, the pushing body 14 pushes the circlip L out of the posture adjustment mechanism 2 through the pushing hole 43. During this time, the rotation of the motor 39 is stopped, and the power supply to the electromagnetic coil 42 is stopped.

In the supply mechanism 3, the operating cylinder 49 is in a contracted state, and the rotating arm 63 is oriented in the horizontal direction as shown by the solid line in FIG. It is located opposite to. After the pushing body 14 pushes out the circlip L into the temporary holding part 67 with the cutout part facing outward, when the pushing body 14 moves back into the guide hole 13 and the actuating cylinder 49 extends, the roller 70 moves to the guide plate 71. By rolling along the lower surface, the rotating arm 63 rotates downward in FIG. 1 and descends. As shown by the chain line in FIG.
0 and positions the circlip L with its cutout facing the chamfered portion 96 of the engagement rod 86.
During this time, in FIGS. 3 and 4, the roller 78 is
The roller 78 descends along the surface of the first sliding guide surface 75 and the rotary plate 80 which is its extension guide surface, and after the circlip L engages the chamfered portion 96 of the engagement rod 86 from its outer circumferential side, the roller 78 rotates. The rocking plate 56 comes off the lower edge of the plate 80, and as a result, the rocking plate 56
Due to the tensile force, the stopper bolt 61 swings counterclockwise around the pivot shaft 55 in FIG.
is removed from the circlip L and removed from the sliding path of the extrusion sleeve 85. The gripping members 65 and 66 are removed from the circlip L after the gripping members 65 and 66 swing and the circlip L engages with the large-diameter guide surface 90 of the engagement rod 86.

Next, when the actuating cylinder 49 contracts, the roller 78 rises and collides with the second sliding guide surface 76, and further slides on the guiding surface 76 to push the rotary plate 80, and then returns to the first sliding guide surface. 75 and rises. During this time, the roller 70 comes into contact with the guide plate 71 and slides on its lower surface, so that the rotating arm 63 returns to the position shown in solid line in FIG.

In the assembly mechanism 4, the push-out sleeve 85 and the engagement rod 86 are in the most contracted position to allow the engagement of the circlip L with the chamfer 96. When both the gripping members 65 and 66 are detached from the circlip L and moved out of the sliding path of the push-out sleeve 85, the push-out sleeve 85 and the engagement rod 86 are expanded, and the engagement recess 97 is moved into the engagement convex portion 98 of the workpiece W. engage with. Thereafter, as the extrusion sleeve 85 further expands, the split tube 91 moves the circlip L toward the workpiece W from the guide peripheral surface 90, and as a result, the circlip L is installed in the annular groove 99.

As described above, according to the present invention, the assembly mechanism for attaching the circlip to the workpiece and the supply mechanism for supplying the circlip to the mechanism are constructed separately, so that the overall structure of the apparatus can be simplified. In particular, in the supply mechanism, one drive source,
Through the cooperation of the movable member, the guide member, and the spring member, the rocking plate equipped with the gripping member moves forward and backward, swings, returns to its posture after swinging, and supplies the circlip to the engagement rod and removes it from the circlip. Therefore, we reduced the number of components of the supply mechanism to simplify its configuration, and in addition, we reduced the cost of the supply mechanism mainly by using only one drive source, and in turn, provided a low-cost circlip mounting device. can do.

Furthermore, since the assembly mechanism is configured to move in the axial direction, positioning of the circlip and the workpiece is easy.

Furthermore, since the circlip is engaged with the engagement rod from the outer circumferential side, the circlip supply operation is easy. Moreover, since the gripping member is swung in the axial direction of the engagement rod through the rocking plate and removed from the sliding path of the push-out sleeve, the gripping member can be moved from the circlip while the circlip remains engaged with the engagement rod. It can be removed more easily, and during assembly work, there are no unnecessary parts such as gripping members near the assembly mechanism, improving the stability and reliability of assembly work. can be done.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which FIG. 1 is a side view of the entire main part broken away, FIG. 2 is a sectional view taken along the line of FIG. 1, FIG. FIG. 1 is a sectional view taken along the line of FIG. 3... Supply mechanism, 4... Assembly mechanism, 51...
Movable member, 56... Rocking plate, 59... Tension spring as a spring member, 65, 66... Gripping member, 7
4... Member main body, 75... First sliding guide surface, 76
... Second sliding guide surface, 78 ... Roller as a sliding body, 80 ... Rotating plate, 85 ... Extrusion sleeve, 86 ... Engagement rod, 99 ... Annular groove, G ...
...Guide member, L...Circlip, W...Work.

Claims (1)

[Claims] 1 Annular groove 9 for attaching a circlip on the outer peripheral surface of one end
9, an engagement rod 8 is configured to be movable relative to the workpiece W on the same axis, and a circlip L is engaged with the tip portion from the outer circumferential side of the engagement rod 8.
6 and an extrusion sleeve 85 that is slidably fitted onto the outer circumferential surface of the engagement rod 86 and installed in the annular groove 99 by extruding the circlip L.
and a supply mechanism 3 that engages the circlip L with the engagement rod 86 of the assembly mechanism 4 from the outer circumferential side. With the driving force of source 49,
A movable member 51 that moves forward and backward relative to the engaging rod 86 in a direction perpendicular to the axial direction of the engaging rod 86, and a movable member 51 that is provided on the movable member 51 so as to swing in the axial direction of the engaging rod 86. a rocking plate 56, gripping members 65, 66 provided on the rocking plate 56 for gripping the outer circumferential surface of the circlip L and directing the missing portion of the circlip L toward the outer circumferential surface of the engagement rod 86; The movable member 5 is moved by sliding the sliding body 78 provided on the plate 56.
In order to hold the swing plate 56 unswingable until the gripping members 65 and 66 engage the circlip L with the engagement rod 86 when the movable member 51 moves forward, the swing plate 56 is After engaging the guide member G and the circlip L to the engagement rod 86, which guide the movable member 51 parallel to the forward and backward direction and return the rocking plate 56 to its pre-swinging position when the movable member 51 retreats, the rocking occurs. By swinging the plate 56, the gripping member 6
5, 66 from the circlip L and from the sliding path of the extrusion sleeve 85, the guide member G:
A first sliding guide surface 75 parallel to the forward and backward direction of the movable member 51 and a first sliding guide surface 75 connected to the edge of the first sliding guide surface 75 on the engagement rod side and inclined with respect to the first sliding guide surface 75. Second sliding guide surface 7 for returning the swing plate posture
6, and one end is connected to the first sliding guide surface 76 of the second sliding guiding surface 76 in order to form an extension guiding surface of the first sliding guiding surface 75 when the movable member 51 moves forward.
A circlip characterized by comprising a rotary plate 80 which is brought into contact with the connecting portion on the sliding guide surface side and which is pushed by the sliding body 78 to release the collision when the movable member 51 retreats. Mounting device.