JPH0222201Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a cover for an automatic pallet changer (hereinafter simply referred to as APC) that automatically exchanges pallets in a machine tool such as a machining center.

[Conventional technology]

Conventionally, APC covers as shown in Fig. 4, Fig. 5,
The one shown in FIG. 6 is well known and used.

In Figure 4, 1 is the APC main body, 2 is the palette,
3 is a workpiece and a fixture, and 4 is a cover.

In Figure 5, 1 is the APC main body, 2 is the palette,
3 is a workpiece and a fixture, 5 is a fixed cover, and 6 is an opening/closing cover.

In Figure 6, 1 is the APC main body, 2 is the palette,
3 is a workpiece and a fixture, 5 is a fixed cover, and 7 is a slide cover.

[Problem that the invention attempts to solve]

With the conventional APC cover as described above, during setup work, it is extremely difficult to attach and remove workpieces on the remaining three of the four surfaces of the pallet except for the surface toward the outer periphery of the APC body, and the worker must use a step stool or stand on the APC body. conduct,
It was a safety issue. In addition, APCs that have a mechanism built into the APC main body that allows pallets to rotate arbitrarily in order to facilitate attachment and detachment have been problematic in that they are expensive to manufacture.

In addition, chips and cutting oil that adhered to the pallets and workpieces after machining accumulated at the bottom of the APC cover, making it troublesome to collect.

This invention was made to solve this problem, and the purpose is to obtain an APC cover that does not require a mechanism that allows the pallet to rotate arbitrarily on the APC main body, and that can facilitate setup work at low cost and safely. do.

In addition to the above objectives, this invention also makes it possible to easily recover chips and cutting oil that have fallen onto the pallets and workpieces after machining and have fallen during setup work.
Aim to obtain APC cover.

[Means for Solving the Problems] The APC cover according to this invention has a track surface provided at the upper end of the APC main body, and a movable cover that is divided into two parts and can be inserted into each other is attached on the track surface.

In addition, in the APC cover of this invention, the movable cover is a shooter type and has a tapered bottom to open the bottom, and the movable cover is adjacent to the movable cover.
Attach a fixed cover that is tapered and has an open bottom to the APC body, and under the movable cover and the fixed cover, clean the saucer for chips and cutting oil at the lower end of the APC body by hand using a brush. They are installed at a distance.

[Effect]

In this invention, at the setup work position, if you move and open the movable cover close to the side of the pallet where you want to attach or remove the work, a setup work area is created right next to the pallet, and a mechanism that allows the pallet to rotate freely on the APC main body is created. Setup work can be done inexpensively and safely without the need for Also, when shielded, it functions as a protective cover and a shooter for chips and cutting oil.

In addition, this invention has a structure in which chips and cutting oil are collected in the receiving tray, so it can be easily cleaned.

〔Example〕

Fig. 1 shows an embodiment of this invention, Fig. 2 is a side view of Fig. 1, and Fig. 3 is a movable cover B of Fig. 1.
1 to 3 are the open state diagrams of the above conventional APC.
It is exactly the same as the cover. 8 is the first movable cover A, 9 is the second movable cover B which is narrower than the first movable cover A8, and 10 is the APC main body 1.
A raceway surface provided on a part of the upper outer peripheral surface of 11A
is a first upper guide roller on which a first movable cover A8 is movably attached to the raceway surface 10;
11B, the second movable cover B9 is placed on the raceway surface 10.
A second upper guide roller 12 is movably attached to the first movable cover A8 and the second upper guide roller.
A lower guide roller is attached to the lower part of the movable cover B9, 13 is a receiving tray, and 14 is a shutter type fixed cover provided on the outer peripheral surface of the APC main body 1.

Further, the first movable cover A8 and the second movable cover B9 are tapered as a shutter and have open bottoms, like the shutter type fixed cover 14.

Note that FIG. 3B shows the outline of the first movable cover A8, and the inside is cut out so that the upper guide roller 11B of the movable cover B9 does not interfere with it.

In the APC cover configured as above,
When movable cover A8 and movable cover B9 are shielded, they act as protective covers as shown in FIG. Accumulate. Furthermore, when it is desired to attach or detach a workpiece on pallet 2, if a movable cover near the surface on which the workpiece is to be attached or detached, for example a second movable cover B9, is moved to the left on the raceway surface 10 by the upper guide roller 11B. By moving, a setup work area is formed as shown in FIG. 3A.

Note that the lower guide roller 12 is attached to the movable cover B mentioned above.
As the APC body 9 moves, it rolls while being guided by the side surface of the APC main body 1.

On the other hand, if it is desired to form a setup work area on the side of the first movable cover A8 in FIG. 1, this can be achieved by moving the first movable cover A8 to the right on the track surface 10.

Therefore, the first movable cover A8 and the second movable cover B9 can be moved into each other, and a setup work area can be formed immediately beside the pallet.

[Effect of idea]

As explained above, this idea is based on the setup work position, when the movable cover close to the side of the pallet where the workpiece is to be attached/detached is moved and opened, a setup work area is created right next to the pallet, and the pallet is placed on the APC main body. Setup work can be done inexpensively and safely without the need for a mechanism that can rotate arbitrarily, and when shielding, it is effective as a protective cover and a shooter for cutting chips and cutting oil.

Furthermore, this invention has a structure in which chips and cutting oil are collected in the tray, so it has the advantage of being easy to clean.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram showing an embodiment of this invention, Fig. 2 is a side view of Fig. 1, Fig. 3A is an open state view of Fig. 1, and Fig. 3B is a first movable cover A8. The schematic configuration diagrams, Figures 4, 5, and 6 are of the conventional APC.
It is a block diagram of a cover. In the figure, 1 is the APC main body, 2 is the palette,
3 is a workpiece and a jig, 8 is a movable cover A, 9 is a movable cover B, 10 is a raceway surface, 11 is an upper guide roller, 12 is a lower guide roller, 13 is a saucer,
14 is a shooter type fixed cover. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In the cover of an automatic pallet changer of a machine tool such as a machining center, a raceway surface 10 provided at the upper end of the automatic pallet changer body 1
and first and second shutter-type movable covers 8 and 9 which are attached to the raceway surface 10 so as to be movable relative to each other on the raceway surface 10, and whose covers can be inserted into each other; A shooter type fixed cover 14 adjacent to the shooter type movable covers 8 and 9 and attached to the auto pallet changer body 1
and the first and second shutter type movable covers 8,
9 and a saucer 13 attached to the lower end of the auto pallet changer main body 1 below the shutter type fixed cover 14.