JPH0715694Y2 - Parts fitting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an improvement of a component fitting device that fits a protruding shaft of one component into a hole of another fitting component.

[Conventional technology]

A conventional component fitting device, for example, in which a protruding shaft 2 is projectingly provided on a component 1, and a hole 4 of a fitting component 3 is fitted to the protruding shaft 2 will be described below with reference to FIGS. 8 and 9. explain.

The component 1 is transported to a predetermined position by an appropriate transport device (not shown) and stands by at that position.

On the other hand, the fitting parts 3 are sequentially sent by a parts feeder or the like, and one of the leading parts thereof is separated by a separating device (not shown) and arrives at the tip of the rail 5.

Then, the chuck 6 approaches from the both sides of the fitting component 3, and the chuck 6 holds the fitting component 3.

After gripping the fitting part 3 in this way, the chuck 6
After rising from the rail 5 as shown in the arrow A in the figure, the arrow B
Then, the holes 4 of the fitting part 3 and the protruding shaft 2 are aligned with each other.

Then, after descending as shown by arrow C, the hole 4 of the fitting component 3 is fitted into the protruding shaft 2 of the component 1, the chuck 6 is opened to release the grip of the fitting component 3, and then the arrow C , B, A are reversed and the chuck 6 moves to return to the initial state.

By repeating this, the fitting components 3 are sequentially fitted to the components 1.

[Problems to be solved by the device]

In the component fitting apparatus as described above, after the chuck 6 holds the fitting component 3, the projecting shaft 2 of the component 1 is provided with the hole 4 thereof.
There is a drawback that the chuck path becomes longer until the fitting is done, and it takes time and the working efficiency is not improved.

Further, since the moving position of the chuck 6 has to match the position of the component 1, it takes time to adjust the positioning, and it is difficult to increase the speed in combination with the above-mentioned drawbacks.

The present invention eliminates the above-mentioned drawbacks of conventional component fitting devices,
It is an object of the present invention to provide a component fitting device that shortens the working time and the adjustment time by fitting the fitting component to the component only by raising and lowering motions, thereby making it possible to increase the speed.

[Means for Solving the Problems]

In order to achieve the above object, the component fitting device of the present invention comprises:
A component 1 having a projecting shaft 2 that is rotatably supported at a substantially central portion and has upper and lower end portions swingable inward and outward, and a fitting component 3 having a hole 4 at its lower end and fitted into the hole 4. A lever 18 which is supported at a position directly above, a piston 12 which is vertically movable and whose lower end insertion portion 12a is inserted into the hole 4 of the fitting component 3 from above by downward movement, and an outer periphery of the piston 12 which is vertically movable. It is slidably fitted to the
A cam surface 11b for closing the lower end of the lever 18 by contacting the upper end of the 18 to maintain the support state of the fitting component 3 is provided, and the piston 12 is moved downward so that the insertion portion 12a of the fitting component 3 is inserted. After inserting it into the hole 4, it moves downward and its cam surface
By contacting the upper end of the lever 18 disengaged from 11b with the side surface of the smaller diameter portion than the cam surface 11b and displacing it inward, the lower end of the lever 18 is opened outward and the fitting part 3 is supported. It is characterized in that it is provided with a cylinder 11 for releasing and pressing the fitting component 3 by its lower end surface to fit the protruding shaft 2 of the component 1 and the hole 4 of the fitting component 3.

[Action]

In the component fitting device of the present invention, when the cylinder descends, the piston also begins to descend, and after the lower end insertion portion is inserted into the fitting component hole, the cylinder and piston continue to descend. The portion comes into contact with the protruding shaft of the component, and the piston is pushed into the cylinder against the bias.

The cylinder comes into contact with the upper surface of the fitting component, and the cam surface comes into contact with the lever to operate the lever, thereby releasing the support of the fitting component by the lever.

Further, the cylinder continues to descend and presses the upper surface of the fitting component, and the hole is fitted to the protruding shaft of the component.

[Example of device]

Next, an example of implementation of the present invention will be described with reference to FIGS.

A transfer device 8 is installed on the base 7 to transfer the component 1 and stop the transfer when the protruding shaft 2 reaches a predetermined position.

The outer cylinder 9 is erected on the base 7 by the block 10 so that the center thereof coincides with the protruding shaft 2 at that time.

An inner cylinder 11 is accommodated in the outer cylinder 9 so as to be vertically slidable, and a piston 12 is also accommodated in the inner cylinder 11 so as to be vertically slidable.

A top plate 13 is attached to the top of the inner cylinder 11, a spring 14 is mounted between the top plate 13 and the outer cylinder 9, and the inner cylinder 11 is biased upward. .

Also, a spring 15 is mounted between the piston 12 and the top plate 13,
The piston 12 is urged downward.

Guide holes 9a and 11a are provided on one side of the outer cylinder 9 and the inner cylinder 11, respectively, and the inner ends of the pins 16 inserted into the guide holes 9a and 11a are fixed to the piston 12. The outer end of the piston 16 projects outside the outer cylinder 9.

A screw 17 is screwed upward to the protrusion 9b on one side of the outer cylinder 9, and when the pin 16 descends, the screw 17 comes into contact with the screw 17 to prevent the pin 16 from descending further.
The working distance of the pin 16 or the piston 12 can be adjusted.

Further, a cam surface 11b having a larger outer diameter is formed at the lower end of the inner cylinder 11, and the rollers 19 of the pair of levers 18 come into contact with the cam surface 11b.

This lever 18 is an arm 20 fixed to the block 10.
Is rotatably supported on the shaft 21 of the
By installing the spring 22 between the shafts of the rollers 19, the roller 19
Pressed against 11b.

The lower ends of the pair of levers 18 are formed on the lower surface of the fitting part 3 and a supporting surface 18a that grips the outer periphery, and when the roller 19 is pushed against the spring 22 by the cam surface 11b, it is supported. surface
The fitting part 3 is held by 18a.

However, when the cam surface 11b descends below the roller 19, the roller 19 is pulled by the spring 22, the support surface 18a expands, and the grip of the fitting component 3 is released.

Then, the lower end of the piston 12 is in the insertion portion 12a formed in a diameter and shape that can be inserted into the hole 4 of the fitting component 3, and the lower end surface of the cam surface 11b of the inner cylinder 11 is the upper surface of the fitting component 3. It is the pressing surface 11c to be pressed.

Next, the operation of this component fitting device will be described.

The component 1 is transported by the transport device 8, and when the center of the piston 12 and the center of the projecting shaft 2 coincide with each other, the transport is stopped,
At the same time, the fitting component 3 is supplied between the supporting surfaces 18a of the lever 18 by a parts feeder or the like, and the state shown in FIG. 3 is obtained.

Then, the top plate 13 is pressed by a pressing device such as a ram (not shown), and the inner cylinder 11 starts to descend with respect to the outer cylinder 9 as shown in FIG.

At this time, since the piston 12 is biased downward by the spring 15, the piston 12 descends together with the inner cylinder 11, and the insertion portion 12a thereof is inserted into the hole 4 of the fitting component 3.

After that, as shown in FIG. 5, the inner cylinder 11 and the piston 12 are continuously lowered, and the insertion portion 12a contacts the protruding shaft 2 to
It serves as a guide for fitting the hole 4 into the protruding shaft 2.

On the other hand, when the inner cylinder 11 is lowered at this time, the cam surface 11b
Has moved to the position just before it is disengaged from the roller 19, and when the cam surface 11b disengages from the roller 19 as shown in FIG. To cancel.

When the inner cylinder 11 is lowered, the piston 12 is pushed into the inner cylinder 11 against the spring 15, and the pressing surface 11c of the inner cylinder 11 moves the fitting part 3 downward. Will be pushed.

Thus, as shown in FIG. 7, the hole 4 of the fitting component 3 can be fitted into the protruding shaft 2 of the component 1, and after the end of this operation, the top plate 13
The depression of the ram or the like that has been depressed is released, and the respective components return to the state of FIG. 3 by the urging force of the springs 14 and 15.

[Effect of device]

As described above, according to the present invention, the protrusion shaft of the component and the hole of the fitting component are aligned with each other to stop the conveyance of the component, and the downward movement of the cylinder fits the hole of the fitting component to the protrusion shaft. It is possible.

Therefore, unlike the conventional component fitting device, the time for gripping and carrying the fitted component and the time for returning are not necessary, and only the cylinder lowering time is required, so that the working time can be greatly shortened.

Further, as described above, since the fitting parts are not carried around, the work for aligning the positions of the projecting shaft and the hole is not required, and the work preparation time can be greatly shortened.

Therefore, work efficiency can be remarkably improved, and high speed can be dealt with.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is a front view of the same as above, and FIGS. 3 to 7 are side views showing an operation process of a main part,
FIG. 8 is a perspective view of a conventional component fitting device, and FIG. 9 is a movement path diagram of a chuck. 1 ... Parts, 2 ... Projection shaft, 3 ... Mating parts, 4 ... Hole, 8 ... Conveying device, 9 ...
Outer cylinder, 11… Inner cylinder, 11b… Cam surface, 11C… Pressing surface,
12 ... Piston, 13 ... Top plate, 14, 15 ... Spring, 18 ... Lever, 18a ...
Support surface, 19… Roller, 22… Spring.

Claims (1)

[Scope of utility model registration request] 1. A projecting shaft which is rotatably supported at a substantially central portion thereof and has upper and lower end portions swingable inward and outward, and a fitting component 3 having a hole 4 at its lower end portion fitted into the hole 4. Two
A lever 18 that is supported at a position directly above the component 1 that has a piston, and a piston 12 that is vertically movable and has a lower end that inserts its lower end insertion portion 12a into the hole 4 of the fitting component 3 from above. The piston 12 is slidably fitted on the outer periphery of the lever 12 and the upper end portion of the lever 18 is brought into contact with the lower end side surface of the piston 12
A cam surface 11b for closing the lower end of 18 to maintain the support state of the fitting component 3 is provided, and the piston 12 moves downward so that the insertion portion 12a is inserted into the hole 4 of the fitting component 3 and then moves downward by itself. The upper end of the lever 18 that has come off the cam surface 11b
By contacting the side surface of the smaller diameter portion than 1b and displacing it inward, the lower end of the lever 18 is opened outward to release the support of the fitting component 3, and the fitting component 3 is released by its lower end surface. When pushed down, the protruding shaft 2 of the component 1 and the hole 4 of the fitting component 3
And a cylinder (11) for fitting and.