JPS6320429Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a workpiece positioning device in a numerically controlled press machine.

There are various types of workpiece positioning devices (for example, refer to the instruction manual for Bender NC-9 by Amada Co., Ltd.), but in general, in a press machine, the workpiece support part and the abutment part for the workpiece are the first They are arranged as in the conventional example shown in the figure.

In other words, the punch 2 and die 3 for processing the workpiece 1 are placed in the overall mechanism of the press machine, and the workpiece support part 4 is placed on the side of the die 3 separately from the table 5 of the numerically controlled press machine. It has been installed. The table 5 is formed in an upright shape, and an abutting part 6 for the workpiece 1 is positioned between the head 5a and the bed part 5b, and this is held by a cylinder 7 buried inside the head 5a. This allows for positional movement in the vertical direction (direction A). Note that the table 5 is moved in a horizontal direction (direction B) via a worm mechanism 9 by driving a motor 8.

However, in such a configuration, since the work support section 4 is separate from the table 5, its movement is not subject to numerical control of the table 5. Therefore, in the bending process using the punch 2 and die 3 as shown in FIG. This had the disadvantage of slowing down the machining process and resulting in poor workability.

Also, as shown in Figure 3, punch 2 and die 3
Even if you try to move the abutment part 6 forward (in the C direction) to move on to the next process after bending the workpiece 1, the workpiece 1 will be moved to the cylinder 7 located above the abutment part 6. It cannot be moved because there is a risk of collision. Therefore, as shown in Fig. 4, the workpiece 1 that has been bent is
The procedure is to move the abutment part 6 after retracting it forward (in the D direction), which has the drawback of poor workability.

In contrast, the present invention incorporates the work support part into the table of the press machine to be subject to numerical control, and also prevents the formation of protrusions above the abutment part to quickly move the abutment part. This is to improve work efficiency.

The configuration of the present invention will be explained using the embodiment shown in FIG. 5 as follows.

That is, a punch 2 and a die 3 for processing the workpiece 1 are arranged in the overall mechanism of the press machine, and the workpiece support part 11 is placed in the horizontal direction ( The cylinder 12 is moved in the E direction) and the abutment part 13 against the workpiece 1 is moved in the vertical direction (F direction).
The cylinder 14 to be moved is buried so that no protrusion is formed above the abutting portion 13. Note that the table 10 is moved in the horizontal direction (G direction) via the worm mechanism 16 by the drive of the motor 15.
people are starting to move.

With such a configuration, the workpiece support part 11, abutting part 13,
The relative positions of the table 10 are determined based on the shape of the workpiece 1 and the numerical control program determined in the press process.
This can be determined by operating the motor 15.

Further, since there is no protrusion above the abutting portion 13, the abutting portion 13 can be moved quickly. Figures 6 to 9 show the procedure of an example of press bending work, in which the workpiece 1 is bent as shown in Figure 6, and then the abutment part 13 is quickly moved as shown in Figure 7. 8. Move it forward (in the H direction) and position it for the next process as shown in FIG. Then, as shown in FIG. 9, the workpiece 1 is applied to the abutting portion 13, and the next step is started.

As mentioned above, when using the positioning device according to the present invention, the relative positions of the workpiece support part, abutment part, and table relative to the workpiece are automatically and quickly determined by numerical control, so the workability of the press process is significantly improved. , it has the advantage of shortening machining time and eliminating restrictions on machining shape.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional workpiece positioning device, FIGS. 2 to 4 are explanatory diagrams of processing operations in the conventional device, and FIG. 5 is an explanatory diagram of a workpiece positioning device according to an embodiment of the present invention. FIGS. 6 to 9 are explanatory diagrams of processing operations in the apparatus of this embodiment. 1...Work, 2...Punch, 3...Dice,
4... Work support department, 5... Table, 6...
...Abutting portion, 7...Cylinder, 8...Motor,
10...Table, 11...Work support department,
12...Cylinder, 13...Abutting portion, 14...
...Cylinder, 15...Motor.

Claims (1)

[Scope of utility model registration request] A numerical control press machine characterized in that a cylinder for moving a work support part and a cylinder for moving an abutting part are buried inside the table of the numerically controlled press machine, and no protrusion is provided above the abutting part. Workpiece positioning device in controlled press machines.