JPH091439A - Method and apparatus for loading workpiece on machine tool - Google Patents

Abstract

PURPOSE: To enable a workpiece to be transferred between a pallet and working position by defining a work table into a working region and a stocker region and moving the work table and a spindle. CONSTITUTION: The table surface of a work table 2 is defined into a working region in which a chuck is disposed and a stocker region in which a pallet 9 receiving a workpiece is disposed. A tool magazine 3 is rotated to index and attach a hand chuck to a spindle similarly to a tool holder. The pallet 9 is moved below the spindle 4 to clamp a workpiece with the hand chuck 10. The chuck 8 is moved to the working region below the spindle 4 by the next movement of the work table 2 to allow the chuck to clamp the workpiece. Thus, after the workpiece is transferred from the pallet 9 to the chuck 8, the hand chuck 10 is changed for the tool holder 11 to apply the desired working to the workpiece clamped by the chuck 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for loading a work on a machine tool, and more particularly to a work table, a tool magazine or a movement of a spindle of the machine tool so that the work can be loaded. It is what

[0002]

2. Description of the Related Art Conventionally, the supply and unloading of a work to and from a work table in a machine tool such as a column traverse type or vertical drilling tapping machine is performed by using a work supply and unloading means which is separate from the main body of the machine tool. In general, the apparatus is installed, and the supplying and taking-out means is operated by a driving means separate from the driving of the main body. However, there is a problem in that the work supply and the take-out means separate from the main body inevitably increase the cost and require a space for the installation.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a work is supplied and taken out by utilizing the movements of a work table, a tool magazine, a spindle and the like provided in a machine tool main body, thereby supplying a separate work. The take-out means is unnecessary.

[0004]

Means for Solving the Problems In order to solve the above problems, the means adopted by the present invention divides a work table into a machining area and a stocker area, and X-
By moving in the Y-axis direction, one of the two areas is positioned below the spindle, the workpiece is processed by the tool mounted on the spindle, and the workpiece is transferred by the hand chuck between the processing area and the stocker area. What I did was a feature.

Further, the present invention is characterized in that the pallet arranged in the stocker area is covered with a cover when the stocker area is retracted from below the spindle due to movement of the work table.

Further, the work table is divided into a processing area and a stocker area, a pallet for storing the work is detachably arranged in the stocker area, and a hand chuck is arranged in a tool magazine in which a plurality of tools can be freely indexed. It is characterized in that the hand chuck can be freely attached to the spindle.

Further, the present invention is characterized in that a cover is fixedly arranged on the work table and the pallet arranged in the stocker area can be covered by moving the work table.

Further, an air connecting portion for introducing an air pressure for operating the claw of the hand chuck is provided on the hand chuck and the spindle so that the air connecting portion can be freely connected when the hand chuck is mounted.

[0009]

[Operation] By moving the work table, the machining area and the stocker area are selectively positioned below the spindle,
The work in the processing area is processed by the desired tool indexed from the tool magazine, and the workpiece is gripped by the hand chuck indexed in place of the tool and the work table and spindle move to move the work to the pallet and processing area. Transfer between.

[0010]

According to the present invention, the work can be transferred between the pallet and the processing position by utilizing the movement of the work table and the spindle without requiring a separate mechanism or device.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the drawings. In the figure, (1) shows a vertical drilling tapping machine, and such a vertical drilling tapping machine is equipped with a work table (2) which operates in the X-Y axis directions as is conventionally known. A spindle (4) for indexing a desired tool from the tool magazine (3), mounting and holding the tool, and machining the work is positioned above the position (4). Tool magazine
A plurality of tools (5) are stored in (3), and a desired tool is selected by an indexing mechanism or a replacement mechanism, and the spindle (4) is selected.
Attached to. Various mechanisms are conventionally known for indexing the tool holder by rotating the tool magazine and replacing and mounting it on the spindle, and any mechanism may be used.

The present invention is a machine tool equipped with such a tool magazine, in which a plurality of tools are exchanged to carry out desired processing, and one hand chuck is incorporated in the tool magazine to move the work table and move the spindle up and down. It is characterized in that the work is transferred between the stocker area and the processing area divided on the work table surface by the movement. As a result, a separate mechanism for transferring the work is not required, and the work can be stored in a pallet or the like in the stocker area and the work can be arranged, thereby enabling unattended automatic operation for a predetermined time. Further, as a space for arranging a mechanism for transferring the work is unnecessary, the structure is simplified and the size of the entire equipment machine can be reduced.

As shown in FIG. 2, the table surface of the work table 2 is a stocker area 7 in which a machining area 6 in which a chuck 8 is arranged and a pallet 9 in which a work is stored are arranged. And the table (2) can be positioned below the spindle (4) by moving the table (2) in the X-Y axis direction. The tool magazine (3) incorporates one hand chuck (10) together with a plurality of tools, and can be mounted on the spindle (4) like a tool holder. That is, the tool magazine is rotated to index the hand chuck (10), the spindle (4) is mounted in the same manner as the tool holder, and the work table (2) is moved to move the pallet (9) below the spindle (4). To move the workpiece and hold the workpiece with the hand chuck (10),
By the movement of (2), the chuck (8) in the processing area is moved below the spindle (4) to grip the work. Thus, the work is chucked (8) from the pallet (9).
After the work is transferred, the hand chuck (10) is replaced with the tool holder (11) by indexing by the rotation of the tool magazine (3) and the vertical movement of the spindle, and the hand chuck (10) is gripped by the chuck (8). The desired work is performed on the workpiece. After processing is completed, the hand chuck (10) is attached to the spindle again, and the work after processing is chucked (8) in reverse to the above.
From the pallet (9) to the chuck (8).

The pallet (9) is designed so that as many works (12) as possible can be aligned and stored within the working range of the table, and a spare pallet should be prepared and easily exchanged. Is preferred. The upper surface of the pallet (9) is covered with the cover (13) when the pallet (9) is retracted from the lower part of the spindle (4) to the stocker area by the operation of the table (2). The cover (13) is arranged in a fixed state irrespective of the movement of the work table (2), and the pallet (9) moves with the work table (2) to cover or open the cover (13). To be done. The cover (13) is fixed to a fixed portion of the machine tool, for example, the main body, has a size and shape sufficient to cover the upper surface of the pallet (9), and has a shape and structure that allows easy replacement of the pallet (9). have. Cover the top of the pallet (9)
By coating with (13), the processed metal powder and the processed oil are prevented from entering the pallet and adhering to the stored work. The cover (13) takes a fixed position with respect to the table (2), but when the pallet (9) is replaced, it can be pivoted upward as shown in FIG. 3 so that the pallet can be easily replaced. Is preferred.

As shown in FIG. 4, when the hand chuck (10) is mounted on the spindle (4), the air connecting portion (14) is joined to the air connecting portion (15) of the spindle to introduce air pressure. The jaws (16) of the chuck can be opened and closed.
The opening and closing of the jaws of the chuck are not limited to the air pressure operating mechanism. Other mechanisms such as an electric mechanism and a hydraulic mechanism may be used. The hand chuck (10) has a pull stat like various conventional tool holders, and can be easily and surely inserted into and removed from the spindle (4).

The operation of the present invention will be described with reference to FIGS. FIG. 5 shows the processing state, the work table (2)
The machining area (6) is located below the spindle (4), the workpiece (12) is gripped by the chuck (8),
Desired processing is performed with the tool held in (4).
FIG. 6 shows a state in which the machining is completed, the hand chuck (10) is mounted on the spindle (4) instead of the tool, and the machined work held by the chuck (8) is taken. In this state, the work table (2) has not moved yet and the pallet (9) is covered with the cover (13).
FIG. 7 shows a state in which the work table (2) moves, the pallet (9) is located below the spindle (4), and the processed work gripped by the hand chuck (10) is stored in the pallet. ing. After storing the work after processing, move the work table (2) in the XY axis direction for the next processing,
The unprocessed work is gripped by the hand chuck (10).

8 to 11 show the work table (2) XY.
Fig. 8 shows the movement in the axial direction, and Fig. 8 shows the work (12) chucked (8).
FIG. 9 shows a state in which the pallet (9) is pulled out from the cover (13) and the processed work is stored in the pallet, and FIG. 10 shows an unprocessed work. 11 shows a state in which the workpiece has been moved to a position where it is taken out of the pallet, and FIG. Point A in these figures indicates the position of the spindle.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a machine tool according to the present invention.

FIG. 2 is a plan view of a work table.

[Fig. 3] Side view of the work table

FIG. 4 is a side view of the hand chuck.

FIG. 5 is a perspective view showing an operating state.

FIG. 6 is a perspective view showing an operating state.

FIG. 7 is a perspective view showing an operating state.

FIG. 8 is a plan view showing movement of the work table.

FIG. 9 is a plan view showing movement of the work table.

FIG. 10 is a plan view showing movement of the work table.

FIG. 11 is a plan view showing movement of the work table.

[Explanation of symbols]

 (1) Vertical drilling tapping machine (2) Work table (3) Tool magazine (4) Spindle (5) Tool (6) Processing area (7) Stocker area (8) Chuck (9) Pallet (10) Hand chuck ( 11) Tool holder (12) Work piece (13) Cover (14) Air connection (15) Air connection (16) Claw

Claims (5)

[Claims] 1. A work table is divided into a machining area and a stocker area, and by moving the work table in the X-Y axis direction, one of the two areas is positioned below the spindle, and a work is mounted on the spindle by a tool. And a work is transferred by a hand chuck between a processing area and a stocker area. 2. The work loading method according to claim 1, wherein the pallet arranged in the stocker area is covered with a cover when the work table is moved to retract the pallet from below the spindle. . 3. A work table is divided into a processing area and a stocker area, a pallet for storing a work is detachably arranged in the stocker area, and a hand chuck is arranged in a tool magazine in which a plurality of tools can be freely indexed. A work loading device for a machine tool, wherein the hand chuck is freely attached to a spindle. 4. The work loading device according to claim 3, wherein a cover is fixedly arranged on the work table and the pallet arranged in the stocker area can be covered by moving the work table. 5. The hand chuck and the spindle are provided with air connection portions for introducing air pressure for operating the claws of the hand chuck, and the air connection portions can be freely connected when the hand chuck is attached. The described loading device.