JPS62264109A - Transport device - Google Patents

Abstract

PURPOSE:To reduce the space for installation to the necessary min. value by arranging a work receiving means which is turnable and a work receiving means which is slidable in the longitudinal direction onto a work receiving means which is fixedly installed. CONSTITUTION:A plate 5 is joined with the piston rod 7 of the first cylinder 6, and driven in the longitudinal direction by the extension and contraction movement of the rod 7. Further, the plate 5 is joined with a connection rod 9 through several swingable arms 8, and when the plate 5 is moved in reciprocation in the longitudinal direction by the drive of the second cylinder 10, the plate 5 rises and lowers horizontally. A rod 12 is inserted onto a receiving board 1', in slidable ways in the longitudinal direction of the plate 5, and a movable receiving board 13 which shifts in the shorter distance than the length of one pitch P is installed integrally onto the outer edge of the rod 12. A longitudinal shaft 17 having a rotary receiving board 16 at the upper edge is axially supported in rotatable ways onto a receiving board 15, and when the transfer plate 5 is moved in the longitudinal direction with the stroke corresponding to one pitch, the rotary receiving board 16 turns by 180 deg..

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) - This invention relates to a conveying device that can arbitrarily change the inner and outer parts of a workpiece.

(Prior art) Generally, in a conveyance device that conveys two workpieces at a time,
In order to reduce the shaft head of the machining unit, it is required to make the pitch of the workpiece surface as small as possible, and in cases where it is necessary to change the posture of the workpieces during the conveyance process, a certain amount of pitch is required to avoid mutual interference. Is it necessary to adjust the work surface pitch? The device disclosed in Japanese Unexamined Patent Publication No. 56-82516 was made in response to such a request. A rocking rod that protrudes toward
It is equipped with an attitude change mechanism that allows it to rotate by 0 degrees.

However, in such a device, in addition to the drive mechanism of the transfer bar, there is a drive fM'JI for changing the pitch.
! The structure, including the control mechanism, is complicated (in addition, a part of the workpiece posture changing mechanism protrudes outward, requiring more space than necessary to install the conveyor). This method has a problem in that the turning angle of the workpiece cannot be arbitrarily set in accordance with the part to be machined.

(Objective) The present invention was made in view of the above problem, and its object is to provide a conveying device with a simple structure that can minimize the space required for installation.

Another object of the present invention is to provide a new conveyance device that can change the posture of a workpiece to an arbitrary position depending on the part to be machined.

(Means for Achieving the Object) That is, in order to achieve the object of the present invention, there is provided a transfer device that sequentially transports workpieces to the next station by means of a transfer plate that moves up and down and moves forward and backward. A fixed workpiece receiving means is disposed on one side of the workpiece receiving means, and a rotatable workpiece receiving means is disposed on one side of the workpiece receiving means, and a workpiece receiving means that is slidable in the longitudinal direction is disposed on the other side. A gear is integrally attached to a workpiece receiving means that can be mounted, and the gear is engaged with a rack fixed to a stationary member, while the gear is placed on the stationary member in abutment with the slidable workpiece receiving means so that the amount of movement of the gear is adjusted as described above. The transfer device is provided with a regulating means for suppressing the amount of movement of the transfer plate in the longitudinal direction.

(Example) The details of the present invention will be described below based on illustrated examples.

The drawing shows one embodiment of the present invention, and reference numeral 1.1 in the drawing indicates a pair of left and right frames horizontally mounted on pillars (not shown), and a workpiece W is mounted on the upper edge of these frames. Several supporting stands 2... are arranged at a predetermined pitch Pj&
Further, on the discharge side (left side in the figure) of the workpieces W, a long support table 3 on which two workpieces W with a reduced pitch are placed is fixed.

Reference numeral 5 denotes a double plate and a sphere plate installed between these frames 1 and 10 so as to be movable vertically and longitudinally, and this plate 5 is connected to a first cylinder 6 disposed at one end of the device.
The plate 5 is connected to a piston rod 7 of the frame 1.1 and is configured to be driven forward by the telescoping movement of the rod 7, and this plate 5 is connected to a number of swinging arms 8 pivoted between the frame 1.1.
When the connecting rod 9 is driven by the second cylinder 10 and reciprocates to the front sliding door, a swinging movement is caused. It is configured to move up and down horizontally via a swinging arm 8 that moves up and down.

This transfer plate 5 has a support base 2 on its upper surface.
...Lift the upper workpiece W and move it to the next support stand 2 in sequence.
Several fixed pedestals 11... to be transferred to... are fixed at equal intervals to the support stands 2...
Also, a pedestal 1 located on the discharge end side of this plate 5]
As shown in FIG. 4, the rod 12 is slidably inserted in the longitudinal direction of the plate 5, and the
A movable pedestal 13 that can move front and rear stoppers 4a provided inside the frame 1 is integrally attached to the outer end of the frame 1.

On the other hand, a vertical shaft 17 having a rotary pedestal 16 at its upper end is rotatably supported by a bearing 15 provided on the workpiece loading side (right side in the figure) of the transfer plate 5, and protrudes below the plate 5. A gear 18 that meshes with a wide rack 20 attached to the frame 1 is fixed to the lower end of this vertical shaft 17. In this embodiment, the transfer plate 5 has a stroke corresponding to one pitch. The rotary pedestal 16 is configured to rotate 180 degrees when it moves back and forth.

Incidentally, in the figure, reference numerals 14 and 14 are springs for shock absorption provided on the rod 12, and 21a and 21b are the vertical shafts 17 of the rotary pedestal 16.
A stopper is shown that receives a roller 19 pivotally supported at the lower end and restricts the stroke of the transfer plate 5 to an amount corresponding to one stroke P.

Next, the operation of the above-mentioned device will be explained.

When pulled to the left in the figure, the swing arm 8, which rotates clockwise in the figure, raises the transfer plate 51Fr to the position shown in Figure 1(a). .

As a result, the movable pedestal 13 on the plate 5, the fixed pedestal 1
1... and the rotation cradle 16 are respectively the support base 2...
・It rises higher and holds the workpiece W that was not supported on the support stand 2.

In this state, when the first cylinder 6 pulls the transfer plate 5 and moves it forward to the left in the figure corresponding to one pitch P, the rotation cradle is rotated via the vertical shaft 17. ] 6 meshes with the rack 20 attached to the frame 1 and rotates, rotating the rotary pedestal 16 disposed on the loading side (right side in the figure) by 18 degrees, and moving it from the station (not shown). The new workpiece W fed onto the right end support stand 2a is rotated 180°. At the same time, on the discharge side (left side in the figure) of the transfer plate 5, the movable pedestal 13, which has started moving forward to the left in the figure together with the plate 5, moves onto the frame 1 while holding the workpiece W. Therefore, the fixed pedestal 11' on the plate 5 that follows it stops as shown in FIG. 1(b) when the transfer plate 5 moves forward by a predetermined stroke. The movable pedestal] 3 is in close proximity to the movable cradle.

Then, following this forward movement, the cylinder 10 of the confectionery 2 pushes the connecting rod 9 and moves it to the right in the figure.
The transfer plate 5 rotates the swing arm 8 in the counterclockwise direction in the figure, and each work W.
. . . are left on the next support platform 2 . . . and descend.

Finally, when the first cylinder 6 retreats the transfer plate 5 to the right in the figure, the gear [8] that meshes with the rack 20 and rotates in reverse rotates the rotation cradle 16 disposed on the loading side. ] 80 degrees to return to the original state, and on the other hand, the movable cradle disposed on the discharge side] 3 retreats together with the plate 5, and on the way, the rear stopper 4 on the frame 1
The movement is prevented by b, and it stops at the original position, and as shown in Fig. 1 (a
).

When the above one cycle is completed, two workpieces W, W with a narrowed pitch are supported on the long support stand 3 provided at the discharge end of the frame 1, and these workpieces W, W are transferred to the next station all together by a transfer device (not shown) which is then activated.

Therefore, in this device, the workpiece W sent to the carry-in side is transferred forward while changing its posture one by one in each cycle, and on the carry-out side, one workpiece W is placed on the long support stand 3 by the first cycle. In the next cycle, the movable pedestal 16 and the following fixed pedestal 11e and each work W
operates to reduce the pitch of the

Also, two pieces facing each other from the previous station 1
In cases where a set of workpieces W and W are brought in,
These workpieces W, W are received in the rotary pedestal 16 and the next fixed pedestal 11 every two cycles, and one of them is reversed by the rotary pedestal 16 to align the orientation, and then transferred forward one after another. All you have to do is run it.

Although the operation of this device has been explained above with reference to the posture change of the workpiece W and the subsequent pitch change operation of the two workpieces W, W, the operation of the transfer plate 5 is explained in FIG. ), the pitch interval sent to the workpiece capturing side on the left side is achieved by performing operations in the opposite manner to the above-mentioned operations, such as ascending, moving forward to the right, descending, and moving backward to the left. It is also possible to transport the two narrow works W and W to the right while increasing the pitch one by one, change their posture one by one on the right work discharge side, and send them out to the next station. .

In addition, a rack 20 provided on the frame 1 and a rotating pedestal 13 are provided.
By appropriately selecting the gear 18 to be attached to the vertical shaft 17 of the workpiece W, the direction of the workpiece W can be changed to any direction other than the direction t180' depending on the part to be machined.

(Effects) As described above, according to the present invention, the transfer plate is provided with a fixed workpiece receiving means, a rotatable workpiece receiving means, and a slidable workpiece receiving means. The workpiece receiving means is rotated by a gear that meshes with a rack on the fixed member, and the sliding amount of the workpiece receiving means is made smaller than that of the transfer plate by a regulating member on the fixed member, so that the posture of the workpiece can be adjusted. It is possible to significantly simplify this type of device by making it possible to change the pitch and change the pitch by movement and opening of the transfer plate, and to have each of these operations performed by the internal mechanism of the transfer device. It is also possible to significantly reduce the installation space.

Moreover, by simply changing the driving direction of the transfer plate, the same device can be used to narrow the pitch and widen the pitch that has been set narrowly. By changing the angle of rotation of the workpiece, it is possible to arbitrarily set the turning angle of the workpiece depending on the part to be machined, and furthermore, by changing the interval between the regulating means, the pitch interval can also be arbitrarily set.

[Brief explanation of drawings]

Figures 1 (a) and (b) are top views of a device constituting an embodiment of the present invention shown in various operating states, Figure 2 is a side view of the same device, and Figures 3 (a) and (b) are FIG. 4, which is a diagram showing how the transfer plate is driven, is a perspective view of the main parts of the device.

Claims (1)

[Claims] In a conveyance device that sequentially transports workpieces to the next station by a transfer plate that moves up and down and moves forward and backward, a fixed workpiece receiving means is disposed on the transfer plate, and one of the workpiece receiving means is rotatable. The rack is provided with a workpiece receiving means that is slidable in the longitudinal direction on the other side, a gear is integrally attached to the rotatable workpiece receiving means, and the gear is fixed to a fixed member. On the other hand, on the fixed member,
A conveying device characterized in that a regulating means is provided which comes into contact with the slidable workpiece receiving means and suppresses the amount of movement of the workpiece receiving means to be smaller than the amount of movement of the transfer plate in the longitudinal direction.