JPS60201854A - Work supporting pallet mounting device - Google Patents

Abstract

PURPOSE:To reduce the necessary floor area while to facilitate the preparation or chip removing work by mounting a pallet loaded with a work from a multi- stage pallet station down onto the feed-out position through a crane then feeding through transfer machine to the machining center. CONSTITUTION:A pallet P mounted with a work fed out from the pallet containing shelf 1 through crane mechanism C to the feed-out position 2 is transferred through pallet transfer mechanism T' to the preparing station R where the machining position of work is adjusted then transferred through transfer mechanism T' to the original pallet containing shelf 1. Under this state, it is started to secure the pallet P onto the table of machining center thus to achieve predetermined machining position of work. The pallet P mounted with machined work is fed reversely along the transfer path to reach to the preparing station R or the pallet containing shelf 1 and enter into the waiting condition of following process. Since the pallet containing shelf can be increased upward, the necessary space is reduced while the performance is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a workpiece support pallet transfer device, and more specifically (a multi-stage pallet station and pallet transfer system for supplying pallets loaded with pallets to a horizontal machining center). Work support pallet 7 with mechanism
) is related to the transfer device.

B. Prior Art Various types of automatic pallet changing devices are provided for the purpose of pulling out a pallet loaded with processed workpieces from a machining center and sending a pallet loaded with unprocessed workpieces into the machining center instead.

For example, there is a rotary-type automatic pallet changing device that places a rotating table in front of a machining center and uses the rotating movement of the rotating table and the lateral movement of a cylinder directly above the rotating table to change the position of old and new workpiece loading pallets. , a fixed pallet loading table is placed in front of the machining center, and the position of the new and old workpiece loading pallets can be exchanged using the vertical linear motion of the pallet on the pallet loading table and the linear motion cylinder on the rotating table. Shuttle type automatic pallet changing equipment,
Alternatively, a fixed pallet loading table for transferring the workpiece loading pallet and a rotation path for the workpiece loading pallet may be installed in front or on the side of the machining center, and the pallet can be moved linearly and rotated between the machining center and the pallet loading table. Multiple types of automatic pallet changing devices have been provided that utilize step movement of the pallets along a path to provide a repositioning action for old and new work-loaded pallets.

However, these existing automatic pallet changing devices
In both cases, the transport mechanisms for the workpiece loading pallets are arranged on the same plane, requiring a large floor area, which is a major constraint in improving the space-saving effect. In addition, if the automatic pallet changer occupies a large floor space, restrictions will be placed on the installation conditions for other attached equipment such as the automatic tool changer and chip collection device, which will not only increase the required floor space but also The operating conditions of a machining center including the following devices are also significantly restricted.

Purpose of the Invention The main object of the present invention is to provide a workpiece support pallet transfer device that can eliminate the above-mentioned inconveniences found in conventional automatic pallet exchange devices for machining centers and has an excellent space-saving effect. There is a particular thing.

C9 Configuration of the Invention The present invention provides a pallet station (S) in which storage shelves (1) for work loading pallets (P) are arranged in multiple stages in a stacked manner along the vertical direction, and the pallet station (S). The work loading pallet (P) is transferred from the pallet to the pallet.
A crane mechanism (C) that transports the workpiece loading pallet (P) provided at the lowest stage of the station (S) toward the sending-out position (2), the sending-out position (2) of the workpiece loading pallet (P), and the machining center. A pallet transfer mechanism (T) that horizontally moves the workpiece loading pallet (P) between the pallet CM and the pallet transfer mechanism (T), and a pallet transfer mechanism (T) located on the opposite side of the machining center (M) when viewed from the installation position of the pallet transfer mechanism (T). The gist of this invention is a workpiece support pallet transfer device consisting of a setup station (R).

2. Embodiment FIG. 1 is a plan view illustrating the overall structure of the apparatus of the present invention, and FIG. 2 is a side view of the main parts of the apparatus of the present invention.

In these drawings, the pallet station (S) includes an upright beam (3), a horizontal beam (4) mounted between the upright beams, and a pallet (P) fixed to the horizontal beam (4). ) is formed from a storage shelf (1).

The pallet storage shelves (1) are arranged in multiple stages at predetermined intervals along the vertical direction to match the dimensions of the mass blocks (5) with workpieces loaded on the pallet (P). In this embodiment, four pallet storage shelves are arranged in front and behind the crane mechanism (C) described later, and one pallet storage shelf (one
) are each loaded with two pallets (P) side by side. Therefore, in this embodiment, a single pallet station (S) houses 16 barrels (P) loaded with mass blocks (5) with workpieces.

The crane mechanism (C) moves the workpiece loading pallet (P) received from the pallet storage shelf (1) to the delivery position (2) of the workpiece loading pallet (P) provided at the lowest stage of the pallet station (S). This is a movable conveyance mechanism for transporting pallets towards the same stage, and for arranging a pallet loading table (6) to face each of two pallets (P) stored side by side on the same pallet storage shelf (1). A pallet loading table (6) is arranged to face the positioning mechanism (7) of the workpiece loading pallet (P) stored on the pallet storage tIi (1) of different stages arranged in multiple stages along the vertical direction. It consists of a vertical feed mechanism (8) for In the embodiment illustrated in FIG. 2, the positioning mechanism (7) is attached to a suspension support device (10
), and the vertical feeding mechanism (8) is connected to the suspension support device (10) of the pallet loading table (6),
A chain wheel (11) that moves the pallet loading table (6) in the vertical direction
It consists of a chain (12) driven by a chain (11) and the pallet loading table (6) suspended from the chain (12), and the pallet loading table (6) is further provided with a pallet storage shelf (1). A pallet support fork (not shown) is incorporated for pulling out the workpiece loading pallet (P) from the workpiece loading pallet (P) or delivering the workpiece loading pallet (P) from the workpiece loading pallet (P) onto the pallet storage shelf (1). The crane mechanism (C) also has a workpiece loading pallet (P) installed at the bottom of the pallet station (S).
P) is positioned on the same plane as the pallet transfer path (13) of the pallet transfer mechanism (T) described later, and the workpiece loading pallet (P) is moved along the pallet transfer path (13) by the pallet support fork. ) is transferred above.

The pallet transfer mechanism (T) is a horizontal movement mechanism for the pallet (P) provided between the pallet transfer position and the table (15) of the machining center (M>), and has a rotatable roller (not shown) on the top surface. The mounted frame (16) is configured so that the pallet transfer path (13) is flush with the moving surface of the workpiece loading pallet (P) supported by the table (15) of the machining center CM).
) and the delivery position (2) of the workpiece loading pallet (P), a horizontal movement path for the workpiece loading pallet (P) is prepared. In the embodiment illustrated in FIG.
It is also provided between the sending position (2) of (P) and the setup station (R) described later.

A rectangular parallelepiped mass block (5) is attached to the pallet (P), and when the workpiece (not shown) to be machined by the machining center (M) is attached to two or more sides of the mass block (5), the workpiece is attached to the surface in a predetermined Φ machining posture. 0 is fixed by maintaining
The apparatus of the present invention is provided with a setup station (R) for arranging the plurality of workpieces fixed to the mounting surface to face the tool mounted on the main shaft (17) of the machining center (M). .

The setup station (R) is arranged on the opposite side of the machining center (M) when viewed from the arrangement position of the pallet transfer mechanism (T), and workpieces on two or more sides of the mass block (5) can be mounted on the surface. A swing drive that rotates and positions the mass block (5) (P) in 90° increments around the rotating shaft (18) so that each of the mass blocks (5) can secure a position facing the tool. It is equipped with a unit (19).

In this way, the pallet storage shelf (
The workpiece loading pallet (P) sent from 1) to the delivery position (2) is transferred to the setup station (R) via the second pallet transfer mechanism (T'), and after adjusting the processing posture of the workpiece. , the second pallet transfer mechanism (
T') to the original pallet storage shelf (1). By starting the machine in this state and fixing the pallet (P) on the table of the machining center CM) according to the above-mentioned procedure, the workpiece (not shown) can be positioned at a predetermined position. The bar (P) loaded with processed workpieces is reversely transported along the transfer path, reaches the setup station (R) or the pallet storage shelf (1), and enters a standby state for the subsequent process.

In the above embodiment, the workpiece support pallet transfer device is installed at the front of the machining center, but the gist of the present invention is not limited by the description of such an embodiment; for example, the present invention It is also possible to install the device on the side of the machining center.

Effects of the Invention As is clear from the above explanation, by adopting the device of the present invention, it is possible to increase the number of pallet storage stages upwards to the ceiling where the pallet changer is installed, and it is possible to Space-saving performance can be greatly improved compared to multiple pallet changers.

Furthermore, the apparatus of the present invention is equipped with a rotation drive unit for the pallet that rotates and positions the mass block to which the work is fixed in 90° increments, so it is easy to set up the work and remove chips when cutting the work with the machining center. can be easily implemented.

[Brief explanation of the drawing]

FIG. 1 is a plan view illustrating the overall structure of the apparatus of the present invention, and FIG. 2 is a side view of the main parts of the apparatus of the present invention. (P) ... Work loading pallet, (1) ... Pallet storage shelf, (Sy ... Pallet station, (2
)...The delivery position of the workpiece loading pallet, (C) ・
・Crane mechanism, (M) ・・Machining center, (T
), (T')...Barret transfer mechanism, (R)...
- Setup station. 1 song ■;, 1″I Figure 1 k to Figure 112

Claims (1)

[Claims] (11) A pallet station consisting of storage shelves for work loading pallets arranged in multiple stages along the vertical direction, and a work loading pallet delivery position provided at the lowest stage of the pallet station from which the work loading pallets are transferred from the pallet station. A crane mechanism to transport the
A workpiece comprising: a pallet transfer mechanism that horizontally moves the workpiece loading pallet between a delivery position of the workpiece loading pallet and a machining center; and a setup station disposed on the opposite side of the machining center as viewed from the installation position of the pallet transfer mechanism. Support pallet transfer device.