JPS5917451Y2 - Press brake positioning feed unit - Google Patents

Description

[Detailed description of the invention] The present invention relates to a positioning and feeding unit for a press brake, and particularly when controlling a press brake by a numerical control device,
The present invention relates to a positioning and feeding unit for a press brake, in which a positioning and feeding device can be easily and conveniently incorporated into the press brake.

Normally, in press brakes, it is necessary to position the material in a predetermined position, and for this purpose, the press brake is equipped with an abutment member, and this abutment member is positioned manually or automatically, and the material is moved to the desired location. It seems to hit the member in question.

That is, the press brake is equipped with a positioning and feeding mechanism such as an abutment member for positioning the material at a predetermined position and a drive mechanism including a motor for setting the abutment member at a predetermined position.

By the way, in the past, when attaching such a positioning and feeding mechanism to a press brake, the work involved directly and individually attaching various members such as an abutting member and a drive mechanism to the press brake.

For this reason, it takes time to adjust the position of each of these members during installation, and the installation work is extremely difficult.

In addition, the conventional abutment members are separate on the left and right, and therefore it requires considerable skill and difficulty to set each abutment member parallel to the upper die and in a straight line. Ta.

The object of the present invention is to provide a new positioning and feeding unit for press brakes which eliminates such conventional drawbacks, and this object is achieved by forming at least two parallel guides on the frame plate. Then, an abutment member is slidably provided along the guide, and after positioning the abutment member at a predetermined position, the workpiece material is abutted against the abutment member and the workpiece material is subjected to cutting or bending. In a press brake, a ball screw rotated by a motor positions an abutting member, and a nut that fits into the pole screw and a guide bearing that allows the abutting member to slide along the guide are attached to the abutting member. It is distantly related to the positioning and feeding unit of the press brake, which is fixed and has a motor, abutment member, etc. attached to the frame plate to form a unit.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

The figure is a schematic diagram of a positioning and feeding unit for a press brake according to the present invention, in which reference numeral 11 is an iron frame plate on which two guides 12 are formed or assembled, and the frame plate further includes a gear box 13 and a ball screw. A receiver 14 is attached.

15 is a pulse motor, which is attached to the gear box 13.

A ball screw 16 is attached to the gear box 13 and the ball screw receiver 14 via a nut 17.

Reference numerals 19 to 20 are guide bearings, which are fixed to the abutting member 18 in the same way as the nut 17, and the abutting member 18 is connected to the guide 1.
2 and slide it smoothly in the direction of the arrow.

Now, in the operation of this unit, when the pulse motor 15 is driven by a command from a numerical control device (not shown), the rotation of the motor is decelerated by the gear box 13 and the ball screw 16 is rotated.

When the ball screw 16 rotates, the abutting member 18 slides in a predetermined direction according to the rotational direction of the motor and is positioned at a predetermined position by the nut 17 that fits into the ball screw.

After positioning the abutment member 18, a workpiece (not shown) is abutted against the abutment member, thereby correctly positioning the workpiece.

In the figure, reference numerals 21 and 22 are a limit switch for preventing an overstroke and a limit switch for preventing overstroke, respectively, and are used to prevent mechanical damage due to runaway of the pulse motor, etc.

As described above, in the present invention, a pulse motor, a gear box, a ball screw, a nut abutting member, etc. are integrated into a frame plate to constitute one positioning and feeding unit.

Therefore, when assembling a positioning mechanism into a press brake, there is no need to assemble the frame plate, abutting member, etc. separately as in the past, but the unit according to the present invention can be assembled in advance at another location, and the unit can be pressed into the press. Simply attach the abutting member to the brake so that it is parallel to the upper die.

This makes attachment of the positioning member extremely simple and easy.

In addition, in the unit of the present invention, the abutment members are not separated on the left and right sides as in the past, but are formed of only one member, so only one drive mechanism is required, and It can also be easily dispensed.

Furthermore, in the unit of the present invention, the abutment member is held down at three points by the pole screw nut receiver 14 and the guide bearings 19 and 20, so that highly accurate positioning is possible despite the simple structure.

In addition, to attach the unit to the press brake, use the unit shown in the figure 2.
3. Simply screwing onto the press brake at point 24 will significantly improve installation operability.

[Brief explanation of the drawing]

The figure shows a positioning and feeding unit of a press brake according to the present invention. In the figure, 11 is a frame plate, 12 is a guide, 13 is a gear box, 14 is a ball screw receiver, 15 is a pulse motor, 1
6 is a ball screw, 17 is a nut, 18 is an abutment member, 19
~20 is a guide bearing.

Claims (1)

[Claims for Utility Model Registration] Forming at least two parallel guides on the frame plate,
An abutment member is slidably provided along the guide, and after the abutment member is positioned at a predetermined position, a workpiece material is abutted against the abutment member to perform cutting or bending on the workpiece material. In a press brake key, a pole screw rotated by a motor positions an abutment member, and a nut that fits into the pole screw and a guide bearing that allows the abutment member to slide along the guide are attached to the abutment member. 1. A positioning and feeding unit for a press brake, which is fixed and has a motor, an abutment member, etc. attached to the frame plate to form a unit structure.