JPH0719686Y2 - Work transfer insertion device - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is a work for inserting a relatively lightweight work piece by shifting it to two positions, for example, lifting a work piece from a supply part such as a conveyor and moving it to an assembly point. The present invention relates to a device used in a step of inserting into an assembly or when a tool is replaced in a machining center.

<Prior Art> Conventionally, as an apparatus for transferring and inserting a work as described above, a drive mechanism for insertion and a drive mechanism for transfer that operates in a direction orthogonal to the drive mechanism are separately provided. Is generally used, and a fluid pressure cylinder or a screw feed mechanism is used as each drive mechanism.

<Problems to be Solved by the Invention> However, in the above-mentioned conventional device, two kinds of drive mechanisms are required to perform movements in different directions, and means for controlling the drive timing of both drive mechanisms. In addition, a control means for increasing the positioning accuracy in each stroke is required, and the structure is generally complicated and the cost is increased.

In addition, by sequentially operating this drive mechanism, "take-out of work"
Since the process of "transfer" and "insert" is performed in series,
It was difficult to increase the speed in terms of timing control.

The present invention has been made in view of such a point, and a work transfer / insertion device having a relatively simple structure and capable of performing a series of strokes smoothly and quickly and with high accuracy. The purpose is to provide.

<Means for Solving the Problems> In order to achieve the above object, the work transfer / insertion device according to the present invention is provided with a movable frame movable in the work transfer direction and a movable frame in the work insertion / removal direction. A work support member that is freely supported, a first rotation cam plate that drives the work support member in the work insertion / removal direction, and a second rotation cam plate that drives the movable frame in the work transfer direction are connected via a spindle. And a drive mechanism for integrally rotating the two rotating cam plates, the first rotating cam plate is sandwiched by a pair of rollers provided on the work supporting member, and the second rotating cam plate is provided on the fixed frame. It is characterized in that it is sandwiched by a pair of rollers.

<Operation> According to the above-described configuration, at one work device position, both rotary cam plates are integrally rotationally driven in a predetermined direction from the state where the work support member is inserting the work. By the movement of the plate, the work supporting member moves backward to take out the work, and then the movable frame moves to the other work mounting position example while holding the work supporting member in the retracted posture by the action of the second rotating cam plate. . After that, the work supporting member is driven forward again by the action of the first rotating cam plate, and the transferred work is inserted into the other work mounting position.

<Embodiment> FIG. 1 shows a plane view of an example of a work transfer / inserting device according to the present invention, FIG. 5 shows a vertical front surface thereof, and FIG. 6 shows a vertical side surface thereof. .

In the figure, reference numeral 1 is a work supporting member for transferring a work between right and left work mounting positions, and slidably penetrates a movable frame 2 configured in a rectangular frame shape in a front-back direction (vertical direction in FIG. 1). It is supported.

Although not shown, a chuck or clamp for supporting the work is attached to the front end of the work supporting member 1.

The movable frame 2 includes a fixed frame 3 and front and rear guide rails.
It is supported so as to be slidable left and right via 4, 4, and an upper frame 5 is fixedly installed on the upper portion. The upper frame 5 of the movable frame 2 is provided with a pair of upper and lower first rotating cam plate 7 and second rotating cam plate 8 which are integrally rotated via a support shaft 6, and the support shaft 6 is reversed in the forward and reverse directions. An electric motor 10 as a rotating drive mechanism 9 and a speed reducer 11 are provided.

The first rotary cam plate 7 is for driving the work supporting member 1 back and forth, and a pair of front and rear rollers 12, 12 ′ provided on the work supporting member 1 are in contact with the outer peripheral cam surface thereof. .

The second rotary cam plate 8 is for driving the movable frame 2 to the left and right, and has a fixed frame bottom plate 13 on its outer peripheral cam surface.
A pair of rollers 14 and 14 'provided on the left and right sides of the roller abut.

The transfer insertion device of the present invention is configured as described above, and its operation will be described below with reference to FIGS. 1 to 4.

(1) FIG. 1 shows a state in which a work is inserted at the work mounting position on the right side. In this case, the front roller 12 of the work supporting member 1 is located at the high point a of the first rotating cam plate 7, and the rear roller 12 'is located at the low point a'of the same cam plate 7, and the work supporting member 1 is It is located at the front end.

With respect to the second rotary cam plate 8, the left fixed roller 14 is located at the high point A of the cam plate 8 and the right fixed roller 14 'is located at the low point A'of the second rotary cam plate 8, and the movable frame 2 is located on the right side. Located at the end.

(2) As shown in FIG. 2, when the first and second rotating cam plates 7 and 8 are rotated clockwise by an angle θ ₁ , the front roller 12 of the work supporting member 1 moves to the first rotating cam plate 7 At the low point b, the rear roller 12 'moves to the high point b', and the work supporting member 1
Is driven backward by stroke S.

During this time, the left and right fixed rollers 14 and 14 'move to points B and B'of the second rotary cam plate 8, respectively, and this rotation angle θ ₁
Since the range is a circular arc cam surface, the movable frame 2 does not move. That is, the work supporting member 1 takes out the work at the right side position.

(3) As shown in FIG. 3, the first and second rotary cam plates 7,
When 8 is rotated clockwise by an angle θ ₂ , the front and rear rollers 12, 12 ′ of the work supporting member 1 are respectively rotated by the first rotating cam plate 7
However, since the range of this rotation angle θ ₂ is the arcuate cam surface, the work supporting member 1 is held at the retracted position.

On the other hand, the rotation of the angle θ ₂ causes the left fixed roller 14 to shift from the high point B to the low point C of the second rotary cam plate 8 and the right fixed roller 14 'to shift from the low point B'to the high point C'. As a result, the movable frame 2 is relatively moved to the left by the stroke L. That is, the work taken out by the work supporting member 1 is transferred to the left.

(4) As shown in FIG. 4, the first and second rotary cam plates 7,
When 8 is rotated clockwise by an angle θ ₃ , the front roller 12 of the work supporting member 1 moves from the low point c of the first rotating cam plate 7 to the high point d, and the rear roller 12 ′ of the high roller c ′ has the high point c ′. To the lower point d ′, the work supporting member 1 is driven forward by the forward and backward stroke S.

During this time, the left and right fixed rollers 14 and 14 'move to points D and D'of the second rotary cam plate 8, respectively, but since the range of this rotation angle θ ₃ is the arcuate cam surface, it is the movable frame. There is no move of 2. That is, the work is inserted at the left work mounting position. With the above, the work transfer insertion from the right work mounting position to the left work mounting position is completed, and the first and second rotations are performed from the state shown in FIG. By reversely driving the cam plates 7 and 8 counterclockwise in the order of the angles θ ₃ , θ ₂ , and θ ₁ , the above-described operations are sequentially performed, and the reverse work transfer and insertion are performed.

In the above embodiment, a pair of front and rear rollers 12 and 12 'are provided on the work supporting member 1 so as to sandwich the first rotary cam plate 7.
Further, the left and right fixed rollers 1 so that the second rotary cam plate 8 is sandwiched therebetween.
4, 14 'are provided, but the work supporting member 1 is spring-biased in the retreating direction so that the work supporting member 1 is forcibly advanced by the first rotating cam plate 7 and elastically retracted. , The movable frame 2 is also spring-biased to the left (or the right side) and only the left fixed roller 14 (or the right fixed roller 14 ') is provided, and the movable frame 2 is moved to the right side by the second rotary cam plate 8 ( Or move to the left) forcibly,
It can also be configured to be biased to the left (or right).

In the case of using the one-sided cam in this way,
By rotating 180 degrees of the 1st and 2nd rotary cam plates 7 and 8, it is possible to transfer and insert the work from left to right, and it is possible to perform the reverse work transfer by the subsequent rotation in the same direction. .

<Effect of the Invention> As described above, according to the present invention, the first drive mechanism is used for the first and second drive mechanisms.
By integrally rotating the second rotary cam plate, it is possible to surely and sequentially perform the steps of “picking up”, “transferring”, and “inserting” the work supporting member on the work supporting member. The structure and control means can be simplified as compared with a device using two drive mechanisms, and the cost increase can be reduced.

In addition, no special timing control is required, and the rotation cam plates are sandwiched by a pair of rollers, so that a series of required operations can be speeded up easily.

Further, since the cam plate is used, the stroke end of the work supporting member can be maintained with high accuracy by the cam shape.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view of a work transfer / insertion device according to the present invention, FIGS. 2 to 4 are plan views in respective operation strokes, and FIG. 5 is a state shown in FIG. Vertical section view at
FIG. 6 is a vertical sectional side view in the state shown in FIG. 1 ... Work support member, 2 ... Movable frame, 7 ... First rotary cam plate, 8 ... Second rotary cam plate, 9 ... Drive mechanism.

Claims (1)

[Scope of utility model registration request] 1. A movable frame movable in the work transfer direction, a work support member movably supported in the work insertion / removal direction by the movable frame, and a first rotating cam for driving the work support member in the work insertion / removal direction. The first rotary cam plate includes a plate, a second rotary cam plate that drives the movable frame in the workpiece transfer direction, and a drive mechanism that integrally rotates both rotary cam plates connected via a support shaft. A workpiece transfer / insertion device characterized in that it is sandwiched by a pair of rollers provided on a workpiece support member, and the second rotary cam plate is sandwiched by a pair of rollers provided on a fixed frame.