JPS5924408Y2 - Multi-axis head transfer device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a transfer device for a multi-axis head that simultaneously performs a large number of holes in a machine tool. This paper proposes an axial head transfer device.

An embodiment of the present invention will be described below based on the drawings.

FIG. 1 and FIG. 2 show a multi-axis head transfer device A, which includes a feed conveyor 1 and a return conveyor 2 consisting of roller conveyors.
and a transfer carriage 3 and a return carriage 4 that move between the conveyors 1 and 2, and a transfer cylinder device 6 that transfers the multi-axis head 5 from the feed carriage 3 to the multi-axis head drive device B. A large number of multi-axis heads 5 to be used in the drive device B are stored and mounted, and sequentially transferred to the multi-axis head drive device B side.

The multi-axis head 5 on the feed conveyor 1 has a feed pusher 8 that reciprocates in the direction of the feed path in conjunction with the cylinder device 7, and a dog 9 on the side of the multi-axis head that engages with the pusher 8.
(FIGS. 3 and 4), and is transferred to a rear mounting platform 10 consisting of a roller conveyor of a feed carriage 3 that stops at the A position at the tip of the feed conveyor 1.

When the feed carriage 3 is moved by the cylinder device 11 and reaches the opening position, the rear mounting platform 10 is moved by the multi-axis head drive device B.
, and is sent out to the multi-axis head drive device B side by the transfer cylinder device 6.

On the other hand, when the feed carriage 3 is in the A position, the multi-axis head 5 pulled back from the multi-axis head drive unit B side by the transfer cylinder device 6 is placed on the front mounting base 12 consisting of the roller conveyor of the feed carriage 3. be drawn in.

Then, when the feed carriage 3 moves to the opening position, the dog 14 on the multi-axis head side ( 5 and 6), and is sequentially and intermittently transferred in a direction opposite to the direction of the feed path, and stops at position C at the tip of the return conveyor 2.
The head is transferred to a multi-axis head loading section 15 consisting of a roller conveyor.

When the return carriage 4 is moved by the chain 16 and reaches the second position, it is pulled into the feed conveyor 1 by the feed pusher 8 on the feed path.

The above transfer operation will be explained in more detail.

In FIG. 7, the feed conveyor 1 or the return conveyor 2
In order to place and transfer the multi-axis head 5, a large number of transfer rollers 17 are arranged horizontally at positions corresponding to both lower sides of the multi-axis head 5, and a large number of vertically arranged transfer rollers 17 are arranged at positions corresponding to both sides of the multi-axis head 5. It has a guide roller 18 arranged at.

Further, in FIGS. 3 and 4, the feed pusher 8 is attached to a transfer side rod 20 that is guided in the direction of the feed path by a guide rod 19 fixed to the side of the feed path, and the cylinder device 7 is attached to the transfer side rod 20. is caused to reciprocate along the feed path direction.

As shown in FIG. 7, the feed pusher 8 has a horizontal shaft 2 at the tip of a fixed arm 21 extending from the transfer side rod 20.
2, and is biased by a spring 23 interposed between the fixed arm 21 and the feed pusher 8 to maintain the horizontal position at all times, and is allowed to escape upward.

A cam surface 8a is formed at the lower rear end of the pusher 8, and when the multi-axis head 5 moves forward toward the transfer side, it engages with the dog 9 of the multi-axis head 5 as shown in FIGS. 8a-c. When the multi-axis head 5 is sent and the multi-axis head 5 is moved backward to the side opposite to the side to be transferred, the multi-axis head 5 escapes to an upper position where it does not engage with the dog 9 of the multi-axis head 5, as shown in FIG. 8d-f. It passes through the shaft head 5.

Reference numeral 24 denotes a positioning lever that engages with the recess 25 on the lower surface of the dog 9 to position it.The lever 24 is pivotally connected via a horizontal shaft 27 to the tip of a column 26 fixed to the side of the feed path.
A spring 28 interposed between the positioning lever 24 and the positioning lever 24 urges the lever 28 to maintain the horizontal position at all times, and allows downward escape.

A cam surface 24 is provided at the upper rear end of the positioning lever 24.
a is formed, and just before the feed pusher 8 engages and pushes the rear surface of the dog 9 of the multi-axis head 5, FIG.
As shown in c, the lower surface recess 25 of the moving dog 9 is pressed by the pressing cam 29 fixed to the fixed arm 21 pivotally connected to the feed pusher 8, and the lower surface recess 25 of the moving dog 9 is further pressed by the cam surface 25a at the lower rear end. When the feed pusher 8 moves backward, it escapes to the lower position and passes the multi-axis head 5, and when the feed pusher 8 moves backward, the dog 9 is prevented from engaging with the lower surface recess 25 even if it is pushed by the pressing cam 29. This maintains the position control of the multi-axis head 5.

Note that when transferring on the return conveyor 2, the same operation is performed using the same structure as described above.

FIG. 5 shows the operation of the feeding carriage 3, and when it is in position A, the rear mounting base 10 of the feeding carriage 3 is in the front position of the feeding conveyor 1, and the front mounting base 12 is in the position of the multi-axis head drive unit B. When in the opening position, the rear mounting base 10 is located behind the multi-axis head drive device B, and the front mounting base 12 is located behind the return conveyor 2, and the multi-axis head 5 is fed and conveyed. When feeding into the carriage 3 or pulling out from the multi-axis head drive device B, the feeding carriage 3 is positioned at A, and when feeding into the multi-axis head drive B or pulling back to the return conveyor 2, it is positioned at the opening.

FIG. 6 shows the operation of the return conveyor 4. When it is in the C position, the multi-axis head mounting base 15 of the return conveyor 4 is in the front position of the return conveyor 2, and when it is in the 2 position, the mounting base 15 is in the front position of the return conveyor 2. is located at the rear of the feed conveyor 1.

9 and 10 show a multi-axis head drive device B,
A swivel device 31 having a swivel table 30 installed at an angle of 45 degrees, a clamp device 32 for clamping the multi-axis head 5 to the swivel table 30, and a swivel device 32 provided through the center of the clamp device 32. , and a multi-axis head drive shaft 33 that is operatively connected to a power transmission mechanism within the multi-axis head 5 when the multi-axis head 5 is clamped by the clamping device 32.

The swivel base 30 is formed, for example, in the shape of a truncated cone, and its slope is inclined at, for example, 45 degrees with respect to the bottom surface of the swivel base 30, and can be rotated as appropriate about the axis 34.

The clamp devices 32 are provided on two slopes corresponding to each other with respect to the axis 34 of the swivel base 30.
When the clamp device 32, which has come to the upper position due to the rotation of 0, clamps the multi-axis head 5 sent in by the transfer cylinder device 6 in a horizontal state, and is rotated 180 degrees by the swivel table 30, the multi-axis head 5 is rotated by 180 degrees. is changed to a vertical state (the drilling awl is horizontal) where it can be drilled.

In this state, if the multi-axis head drive device B itself is advanced along the guide rail 35 as shown in FIG.
can be brought close to the object to be drilled, and simultaneous drilling by each drilling awl is possible.

As mentioned above, when the multi-axis head 5 from the feed conveyor 1 is transferred to the rear mounting base 10 of the feed conveyor 3 stopped at the A position, and the feed conveyor 3 moves to the opening position, the multi-axis head 5 is transferred as shown in FIG. The U-shaped engaging portion 36 at the rear of the shaft head 5 fits into the inverted U-shaped retaining portion 37 at the tip of the rod of the transfer cylinder device 6.

Then, the multi-axis head 5 is sent onto the guide roller 38 to the clamp arm 39 side of the clamp device 32 of the multi-axis head drive device B as shown in FIG. A T-groove 40 fits into and is retained on the clamp arm 39.

Then, by the downward movement of the clamp arm 39, the T-shaped groove 40
The projecting edge 41 is clamped between the clamp arm 29 and the fixed part 42 of the swivel base 30, and the U-shaped retaining part 36
is removed from the inverted U-shaped retaining portion 37 of the transfer cylinder device 6 as shown in FIG.

Then, by turning the turning table 30, it is converted to a lower position where drilling is possible.

Next, the multi-axis head drive shaft 33 is rotated by the motor 43, and as a result, the multiple drilling awls of the multi-axis head 5 are rotated, and the objects to be drilled are simultaneously drilled by the advancement of the multi-axis head drive device B.

, when replacing the multi-axis head 5, the above operations are performed in the reverse order, and when the multi-axis head 5 pivots to the upper position and the clamp arm 39 rises, the U
The shape retaining portion 36 is the inverted U-shaped retaining portion 3 of the transfer cylinder device 6.
7, and is pulled back to the front mounting base 12 of the feed carriage 3 at position A by the contraction operation of the transfer cylinder device 6, and when the feed carriage 3 moves and comes to the opening position, the return conveyor 2 At the same time, another multi-axis head 5 on the rear mounting base 10 of the feeding carriage 3 is sent into the clamp arm 39 by the transfer cylinder device 6, and the exchange of the multi-axis head 5 is completed.

The multi-axis head 5 drawn into the return conveyor 2 is placed and stored on the feed conveyor 1 via the conveyor 2 and the return conveyance device 4, and waits for the next use.

As described above, according to the present invention, various types of multi-axis heads can be placed and stored on the feed conveyor and the return conveyor, and the multi-axis heads are driven by the transfer device while being circulated sequentially by both conveyors and the transfer device. Because it can be fed into a device, it is particularly advantageous when, for example, one workpiece is sequentially machined with multiple multi-axis heads to produce a large number of such workpieces. The multi-axis head drive device has a rear mounting stand that exclusively mounts the multi-axis heads that are to be sent out to the multi-axis head drive device side, and a front mounting stand that exclusively mounts the multi-axis heads that are returned from the multi-axis head drive device side. The multi-axis head can be quickly and easily delivered to and from the other side, and drilling operations can be carried out with high efficiency, so its industrial value is extremely large.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view showing the overall configuration, Fig. 2 is a side view thereof, Fig. 3 is a plan view showing the transfer device of the feed conveyor, and Fig. 4 is a side view thereof. Figures 5 and 6 are X-X and Y-Y arrow views in Figure 1, Figure 7 is a rear view of the feed path seen from behind, and Figure 8 shows the relationship between the feed pusher and the dog. The operation diagrams to be described, FIGS. 9 and 10, are a side view and a rear view of the multi-axis head drive device. 1...Feeding conveyor, 2...Return conveyor, 3...Feeding carriage, 4...Returning carriage, 5...Multiple Axis head, 6...
・Transfer cylinder device, 8゜13...Feed pusher, 9,14...Dog, 20...
・Transfer rod, 24...Positioning lever, 29・
...pressing cam, 32...clamp device,
B...Multi-axis head drive device.

Claims (1)

[Scope of utility model registration request] A front section in which a feed conveyor and a return conveyor capable of mounting and storing a multi-axis head and a return conveyor are arranged side by side at intervals, the front part is capable of reciprocating between one ends of both conveyors, and the multi-axis head can be delivered to the return conveyor. A feeding carriage having a mounting platform and a rear mounting platform capable of receiving a multi-axis head from the feed conveyor, and capable of mounting a multi-axis head on each mounting platform is provided, and a conveyance carriage is provided between the other ends of both the conveyors. A return carriage is provided which is capable of reciprocating and is capable of carrying one multi-axis head, and is capable of intermittently transporting the multi-axis head on both conveyors. A transfer device that can be pulled into the conveyor and sent from the conveyor to the other truck constitutes a circulation transfer path for the plurality of multi-axis heads, and furthermore, A transfer device is provided that is capable of sending the multi-axis head to the multi-axis head drive device at a predetermined position and is capable of pulling the multi-axis head back from the multi-axis head drive device to the front mounting base at the predetermined position. A multi-axis head transfer device featuring: