JPH0737791Y2 - Work transfer insertion device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to the work of transferring and inserting a relatively lightweight work into two positions, for example, lifting a work from a supply unit such as a conveyor and moving it to an assembly position. 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, there is one that separately includes a drive mechanism for insertion and a drive mechanism for transfer that operates in a direction orthogonal to the drive mechanism. Generally, 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-described conventional device, two types of drive mechanisms are required in order to move in different directions, and a means for controlling the drive timing of both drive mechanisms is required. Therefore, the structure is generally complicated and the cost is increased.

Further, since the two drive mechanisms are sequentially operated to perform the steps of "workpiece takeout", "transfer", and "insertion" in series, it is difficult to increase the speed in terms of timing control.

The present invention has been made paying attention to such a point, and provides a workpiece transfer / insertion device having a relatively simple structure and capable of smoothly performing three strokes in series. The purpose is to

(Means for Solving Problems) In order to achieve the above object, the work transfer / insertion device according to the present invention is moved laterally by being guided by a pair of front and rear guide rollers provided on a fixed frame. A movable frame having a rectangular frame shape that is freely supported, a work support member that is supported by a pair of front and rear guide portions provided on the movable frame, and is movably supported in the front and rear direction, and provided on the fixed frame. A movable member, which is guided by a pair of left and right guide rollers and is movably mounted in the front-rear direction, and a left-right direction formed on the movable member so as to project from the movable member. A pair of left and right cam follower rollers mounted on the engaging roller penetrating through the long slot and the upper fixed frame provided above the fixed frame and having an outer peripheral surface provided on the movable frame. The outer peripheral cam is sandwiched between the two, and the inner surface of the outer peripheral cam is provided with a single rotating cam plate in which a groove cam through which the engaging roller penetrates is bored over a predetermined length range. Is characterized by. That is, this transfer insertion device directly transmits the displacements of the outer peripheral cam and the groove cam associated with the rotation of the rotary cam plate to the work supporting member, and by this, the work supporting member is required to perform a required operation. It is characterized by being performed.

(Operation) According to the above configuration, with the rotation of the single rotary cam plate in the fixed direction, only the movable member is first driven backward, and the work support member engaged and connected thereto moves the work from the predetermined position. Pull out. When the rotary cam plate is further rotated, only the movable frame is driven while the movable member is held at the retracted position, whereby the work supporting member that picks up and holds the work moves toward the other work mounting position. Further, as the rotary cam plate rotates, only the movable member is driven forward while the movable frame is fixed in position, and the work supporting member advances toward the other work mounting portion.

When the rotary cam plate is driven in the reverse direction, the above operation is performed in reverse.

(Embodiment) FIG. 1 shows a plan view of a work transfer / inserting device according to the present invention, FIG. 2 shows a partially longitudinal section thereof, and FIG. 3 shows a partially longitudinal side surface thereof. .

In the drawings, reference numeral 1 is a work supporting member for alternately taking out, transferring, and inserting a work between predetermined two positions on the left and right, and the work supporting member 1 is a movable frame configured as a rectangular shape in plan view. In addition to being held by 2, the movable frame 2 is slidable only in the work inserting / extracting direction, that is, the front-rear direction (vertical direction in FIG. 1) by the pair of guide portions 3, 3 facing each other. Supported by. Although not shown, a work supporting chuck, a clamp, or the like is appropriately attached to the front end of the work supporting member 1.

On the other hand, the movable frame 2 is guided by a pair of front and rear guide rollers 5 provided on the fixed frame 4, and is movably supported in the work transfer direction, that is, in the left and right directions. Further, on the fixed frame 4, a movable member 7 which is guided by a pair of left and right guide rollers 6 and is movable in the front-rear direction is placed, and an engagement provided on the movable member 7 in a protruding manner. The roller 8 is formed at an intermediate position in the front-rear direction of the work supporting member 1 and penetrates a long hole 9 which is long in the left-right direction.

Further, above the fixed frame 4, the upper fixed frame 10
The upper fixed frame 10 is provided with only a single rotating cam plate 11 having a different diameter in plan view, which is driven in the forward and reverse directions by a motor (not shown) over a predetermined angle range. The outer peripheral surface of the rotary cam plate 11 serves as an outer peripheral cam 12 for driving the movable frame 2, while a grooved cam 13 for driving the movable member 7 is provided at a predetermined position on the inner surface thereof. Has been drilled over the length range of. At this time, the outer peripheral cam 12 is sandwiched so as to be in contact with a pair of left and right cam follower rollers 14, 14 provided on the movable frame 2, and the engaging roller 8 is engaged with the groove cam 13. It has been penetrated.

The work transfer / insertion device according to the present invention is constructed as described above, and its operation will be described below with reference to FIGS. 1, 4 to 6.

(1) FIG. 1 shows a state in which the work supporting member 1 has inserted the work at the left side position, and at this time, the engaging roller 8 of the movable member 7 is at the right end of the groove cam 13.

(2) When the rotating cam plate 11 starts rotating clockwise,
As shown in FIG. 4, the groove cam 13 has a shape that approaches the center side along the rotational direction in the initial rotation phase (a) within a certain range.
The work supporting member 1 is moved to the center side, and the work supporting member 1 is retracted accordingly. In this case, since the movable frame driving cam 12 has a circular shape in plan view in the initial rotation phase (a) with the center of rotation of the rotating cam plate 11 as the centroid, the movable frame 2 remains unchanged. Maintained in position.

That is, only the work supporting member 1 linearly moves backward by a certain amount S, and the work is taken out at the left side position.

(3) As shown in FIG. 5, a groove cam for driving the movable member
The intermediate rotation phase (b) of 13 is formed in an arc shape centering on the center of the cam plate, and the rotation of the cam plate at this phase (b) stops the back-and-forth movement of the work supporting member 1. Since the outer peripheral cam 12 in this intermediate rotation phase (b) has a different diameter shape, the movable frame 2 moves to the right through the cam follower rollers 14, 14, and again, the movable frame 2 Accordingly, the work supporting member 1 also moves to the right.

That is, the work supporting member 1 that takes out the work at the left side position holds the taken out work and moves straight to the right.

(4) When the rotary cam plate 11 further rotates and the engagement roller 8 reaches the end of the groove cam 13 in the central rotation phase (b), as shown in FIG. The movement ends.

(5) When the rotary cam plate 11 enters the late rotation phase (c),
As shown in FIG. 6, in this phase (c), the groove cam 13 has a shape that moves away from the center along the rotational direction.
The engaging roller 8 is displaced forward and the work supporting member 1 is driven forward, but the outer peripheral cam 12 of the rotary cam plate 11 again becomes a circular cam, and the movable frame 2 remains held at the right side position.

That is, only the work supporting member 1 linearly moves forward by a fixed amount S at the right side position to insert the work.

With the above, the work replacement from the left position to the right position is completed, and by rotating the rotary cam plate 11 in the reverse direction, the above operation is performed in reverse, so that the work transfer from the right position to the left position is performed. is there.

The present invention can be implemented in the following modified forms.

(1) The groove cam 13 for driving the movable member may be formed as a groove cam having a bottomed groove shape. In this case, set the groove cam 13 360 °
Since it can be formed in an annular shape over the entire length, for example, the rotation cam plate 11 is rotated 180 ° in a certain direction to replace the work from the left position to the right position, and the subsequent 180 ° rotation in a certain direction is performed from the right position to the left position. As described above, the work can be replaced by rotating the rotating cam plate 11 once.

(2) The work supporting member 1 or the movable member 7 may be biased in the backward direction by a spring, and the grooved cam 13 may be configured to press the engaging roller 8 only in the forward direction to displace it.

(Effects of the Invention) As described above, according to the present invention, by rotating one rotating cam plate, there are three types of "workpiece taking out", "transferring", and "workpiece inserting" by the work supporting member. It is possible to smoothly perform one operation in series and sequentially, and it is possible to match the operation phase of each member simply by accurately forming each cam portion of the rotary cam plate,
Unlike the prior art, there is no trouble of combining two driving devices to perform phase adjustment, and the assembly can be easily performed.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a vertical sectional front view thereof, FIG. 3 is a vertical sectional side view thereof, and FIGS.
The drawing is a plan view showing the operation process. 1 ... Work support member, 2 ... movable frame, 4,10 ... fixed frame, 7 ... movable member, 11 ... rotating cam plate, 12 ... peripheral cam, 13 ... groove cam.

Claims (1)

[Scope of utility model registration request] 1. A rectangular frame-shaped movable frame supported by a pair of front and rear guide rollers provided on a fixed frame and movably supported in the left-right direction, and a pair of front and rear guides provided on the movable frame. Insert the part,
A work supporting member supported so as to be movable in the front-rear direction, a movable member mounted so as to be movable in the front-rear direction by being guided by a pair of left and right guide rollers provided on the fixed frame, and a movable member on the movable member. The engaging roller is provided so as to protrude and penetrate a long hole extending in the left-right direction formed at an intermediate position in the front-rear direction of the work supporting member, and is attached to an upper fixed frame provided above the fixed frame. In addition, the outer peripheral surface is an outer peripheral cam sandwiched by a pair of left and right cam follower rollers provided on the movable frame, and a grooved cam through which the engaging roller penetrates at a predetermined position on the inner surface thereof over a predetermined length range. A workpiece transfer / insertion device, comprising: a single rotating cam plate that is punched.