JPS632189Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a workpiece support device for a plate processing machine such as a turret punch press.

Conventionally, in a plate processing machine such as a turret punch press, a groove in the Y-axis direction is provided in the center of the work table that supports a plate-shaped work, and a Y-axis ball screw placed in this groove can be used to It moves directly in the center of the shaft drive carrier (X-axis carriage base). Therefore, when moving a thin workpiece in the X-axis direction, there is a problem that the edge of the workpiece sometimes gets stuck in the groove. Therefore, there is also a prior art structure in which the groove in the central part of the work table is eliminated. As prior art, there are structures such as those shown in, for example, Japanese Patent Laid-Open No. 50-31490 and Japanese Utility Model Publication No. 48-7751. In both of the above-mentioned prior arts, the work table is in the form of a flexible slat, and there is a problem in that the structure of the work table becomes complicated.

The present invention has been made in view of the conventional problems as described above.

The example shown in Fig. 1 is a numerically controlled turret punch press 1, but conventionally a plate material is inserted between an upper die 3 (punch) and a lower die 5 (die). The punching process was performed by numerically controlling positioning and driving the ram 7 of the press using a device. Figure 1 is a side view of the turret punch press, with the left and right direction being the X-axis direction (left and right directions in Figures 2 and 3), and the front and back direction being the Y axis when viewed from the front of the machine on the right side of Figure 1. This will be referred to as the axial direction (the left-right direction in FIGS. 1 and 4).

First, the plate material 9 is gripped by a plurality of gripping claws (clamps) 13 provided on the X-axis carriage 11, and
The shaft carriage 11 is guided by Y-axis guide bars 15 provided in parallel on the left and right sides of the machine base, and is mounted on an X-axis drive unit carrier 19 spanning a pair of left and right Y-axis carriages 17 that move in the Y-axis direction. The X-axis ball screw 25 rides on the horizontally protruding guide bar 21 provided and the vertically protruding guide bar 23 (see FIGS. 2 and 4).
is driven to move and position in the X-axis direction. 2
7 is a ball nut fixed to the X-axis carriage 11, and 29 is a servo motor driven by numerical control, which rotates the X-axis ball screw 25.

From the above explanation, it will be understood that the plate 9 can be freely positioned in the X-axis direction by numerical control, and this is a known mechanism.

Conventionally, as a mechanism for positioning the plate material 9 in the Y-axis direction, a ball nut 31 is projected downward from the center of the carrier in the X-axis direction on which the X-axis carriage 11, referred to as the X-axis drive part carrier 19, is mounted. Since the Y-axis ball screw 33 was installed in a groove that divided the work table 35 into left and right parts, when the plate 9 was moved from side to side, the left and right edges of the plate were stuck in the groove, resulting in a smooth surface. This resulted in problems such as not being able to move or damaging the gripping claws 13 and the plate material 9 itself.

The present invention is an improvement made to overcome the above problems, and this improvement will be explained in detail below.

In FIGS. 2, 3, and 4, table support bars 37 that support the work table 35 are arranged parallel to the left and right in the Y-axis direction, and columns 39 are erected on the machine base 38 at their tips and rear ends. hold it. A new connecting member 41 is provided at the portion where the Y-axis carriage 17 and the X-axis drive unit carrier 19 are connected, and the Y-axis shown best in FIG. The drive member 43 is fixed in a state where the left and right Y-axis carriages are connected. As seen in FIG. 3, the Y-axis drive member 43 is at a height that passes completely under the worktable, and even when closest to the turret, as best seen in FIG. The width in the Y-axis direction is made narrow in the central part so as not to interfere with the ball screw support 45. Reference numeral 47 is a servo motor that rotates the Y-axis ball screw.

As can be understood from the above description of the embodiments, the gist of the present invention is as stated in the claims for utility model registration.As is clear from the description, the present invention has multiple worktables. Each Y-axis carriage, which is movably supported by each Y-axis guide bar provided on both sides of the worktable in the X-axis direction, is fixed to the machine base via a support column. It is integrally connected to the machine base by a Y-axis drive member located between it and the machine base. The X-axis drive unit carrier, which is equipped with gripping claws for gripping the plate material and supports an X-axis carriage movable in the X-axis direction, is located above the work table, and has both ends supported by the Y-axis carriages. This is what has been done. And Y
A ball nut screwed into the Y-axis ball screw in the axial direction is attached to the Y-axis drive member.

Therefore, according to the present invention, there is no need to provide a groove in the center of the work table, and the conventional problems can be solved with a simple structure in which the work table is fixed. Further, according to the present invention, the force when moving the X-axis drive part carrier in the Y-axis direction is transmitted to both ends of the X-axis drive part carrier instead of the center part, so that rapid movement and Even in the case of repeated stops, the vibration of the X-axis drive unit carrier itself can be reduced.

Note that the present invention is not limited to the above-mentioned embodiments, but can be implemented in other embodiments by making appropriate changes.

[Brief explanation of drawings]

FIG. 1 is a side view illustrating a material feeding device of a known numerically controlled turret punch press. Second
The figure is a plan view corresponding to the cross-sectional view taken in the direction of the arrows in FIG. 1, showing one embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the - arrow in FIG. 2. FIG. 4 is a sectional view taken along the arrow - in FIG. 2 of the same. Explanation of symbols representing main parts of the drawings: 1...turret punch press, 11...X-axis carriage,
13...Gripping claw, 15...Y-axis guide, 17...
Y-axis carriage, 33...Y-axis ball screw, 35
... Work table, 37 ... Table support bar, 39 ... Table support, 41 ... Connection member,
43... Y-axis drive member, 45... Ball screw support.

Claims (1)

[Scope of utility model registration request] Y-axis guide bars 15 extend in the Y-axis direction at positions on both sides of the work table 35 in the X-axis direction, which is supported on a base 38 via a plurality of supports 39.
are provided on the base 38, and each of the Y-axis guide bars 15
Each Y-axis carriage 17 is movably supported on
are integrally connected to each other by a Y-axis drive member 43 located between the base 38 and the work table 35, and are provided with gripping claws 13 that can freely grip the plate material 9, and are movable in the X-axis direction. An X-axis drive part carrier 19 supporting an X-axis carriage 11 is arranged above the work table 35, and the vicinity of both ends of the X-axis drive part carrier 19 are connected to each of the Y-axis carriages 17.
The ball nut 31 is mounted on the Y-axis drive member 43 and is screwed onto a Y-axis ball screw 33 that is supported by the Y-axis ball screw 33 and is provided extending in the Y-axis direction and rotatably supported by the base 38. A workpiece support device for a plate material processing machine, characterized by: