JPH0452033A - punching press - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a punching press that performs punching while holding a workpiece vertically.

[Conventional technology]

Conventionally, in punching presses such as turret punch presses that punch out plate-shaped workpieces, a workpiece b placed on a table a is normally movable in the X-Y directions and is gripped by a ramp C, as shown in FIG. Then, the clamp C
After moving the workpiece b in the X-Y direction with the It is configured to be punched in any direction.

[Problem to be solved by the invention]

For this reason, when moving the workpiece b in the horizontal direction to position the punching position, the lower surface of the workpiece b comes into sliding contact with the table a, the lower turret f1 die, etc., resulting in a problem that the lower surface of the workpiece b is scratched.

In addition, since punching is performed from the top and bottom of workpiece b, the impact during punching propagates from workpiece b to table a, producing a loud impact sound, and workpiece b, which jumps up during punching, lands on table a. There were also problems such as high noise during punching, such as colliding with table a when falling and producing a collision sound.

This invention was made to improve the above-mentioned problems, and aims to provide a punching press that can punch out a workpiece without damaging the workpiece or generating large noises.

[Means and effects for solving the problem] In order to achieve the above object, the present invention has a main frame of a press body with Y
A Y-axis carriage that can be moved vertically by an axis servo motor is installed horizontally, and an X-axis carriage that can be moved horizontally by an X-axis servo motor is installed on this Y-axis carriage, and the workpiece is held vertically on this X-axis carriage. The press body is provided with a clamp for punching, and a punch and die for moving and positioning the workpiece to the punching position of the press body and punching the workpiece.

This allows the workpiece to be moved without sliding against the table or die, which prevents damage to the workpiece, and prevents the impact from being transmitted from the workpiece to the table during punching, and the workpiece that has jumped up falling onto the table. Since no large collision noise is generated, noise can be reduced.

〔Example〕

One embodiment of the present invention will be described in detail with reference to the drawings shown in Figs. 1 to 5. In the drawings, reference numeral 1 denotes a press body, and the Y-axis extends horizontally in the front-rear direction on the upper part of the gate-shaped main frame 1a. The Y-axis carriage 2 on which the carriage 2 is installed is supported at both ends by a pair of mutually parallel guide rails 3 installed in the vertical direction of the main frame 1a, and can freely slide up and down along these guide rails 3. In addition, both ends of the Y-axis carriage 2 are
It is screwed into a screw shaft 4 made of a ball screw, which is provided parallel to the guide rail 3.

The upper and lower ends of the screw shaft 4 are connected to the main frame 1 through bearings 5.
A bevel gear 6 is provided at the upper end of each screw shaft 4, and these bevel gears 6 are connected to a bevel gear 9 provided on a rotating shaft 8 rotated by a Y-axis servo motor 7. are engaged.

Further, a screw shaft 12 made of a ball screw is supported on the Y-axis carriage 2 so as to be parallel to the Y-axis carriage 2.

The bottom portion of an X-axis carry nozzle 13, which is slidably supported by the Y-axis carriage 2, is screwed onto this screw shaft 12.

The X-axis carriage 13 is supported by guide rails 14 installed on the Y-axis carriage 2, and is movable in the horizontal direction (X-axis) along these guide rails 14. X-axis servo motor 1 at one end of 12
5 is connected.

On the other hand, the X-axis carriage 13 is provided with a pair of clamps 16 facing downward, and by gripping the upper end of the workpiece 17 with these clamps 16, the workpiece 17 can be held in a vertical state.

Further, at the punching position of the press body 1, a bunch 18 and a die 19 are provided so as to face each other with a workpiece 17 held vertically by a clamp 16 in between.

The bunch 18 is struck in the direction of the die 19 via a striker by a striking mechanism (not shown), and the die 19 is fixed to the main frame 1a side via a die holder 20.

Next, to explain the operation, the Y-axis servo motor 7 and the X-axis servo motor 15 are connected to an NC device (not shown), and are controlled by command signals from the NC device.

That is, when the Y-axis servo motor 7 and the X-axis servo motor 15 are rotated by a command signal from the NC device and the screw shafts 4 and 12 are rotated, the Y-axis carriage 2 moves up and down (in the Y-axis direction), and then the X-axis carriage 13 moves in the horizontal direction (X-axis direction). As a result, the workpiece 17 held vertically by the clamp 16 is moved in the Y-axis and X-axis directions, and the punching position is positioned at the punching position of the punch 18 and die 19.

Further, at this time, the workpiece 17 does not come into sliding contact with the table or the die 19 as in the conventional case, so the surface is not scratched.

On the other hand, when the positioning of the workpiece 17 is completed, the bunch 18 is lowered by the striker according to a command from the NC device, and the workpiece 17 is punched between the bunch 18 and the die 19, and the impact at the time of punching is transmitted to the table. Since no noise is generated or behavior such as the work 17 jumping up during punching falling and colliding with the table occurs, punching can be performed with less noise.

When punching is completed, the next punching point is positioned and the above operation is repeated again, so that the workpiece 17 is continuously
It becomes possible to perform punching processing.

〔Effect of the invention〕

As described in detail above, in this invention, the punching position of the workpiece is determined while the workpiece is held vertically by a clamp, so that when the workpiece is moved, the workpiece does not slide against a table or the like and get scratched. Problems can be resolved.

In addition, since the workpiece is punched from both sides of the workpiece held vertically, the impact during punching may propagate to the table, etc., causing noise, and the workpiece that has sprung up during punching may be damaged by the table. Problems such as collisions and loud noises can also be resolved.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a punching press showing an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a front view thereof, Fig. 4 is a view taken from the FIG. 5 is a view taken from the direction shown in FIG. 1, and FIG. 6 is an explanatory diagram showing a conventional turret bunch. 1 is the press body, 1a is the main frame, 2 is the Y-axis carriage, 7 is the Y-axis servo motor, 13 is the X-axis carriage, 1
5 is an X-axis servo motor, 16 is a clamp, 17 is a workpiece, 18 is a bunch, and 19 is a die.

Claims (1)

[Claims] A Y-axis carriage 2 that can be moved vertically by a Y-axis servo motor 7 is installed horizontally on the main frame 1a of the press body 1.
This Y-axis carriage 2 is operated by an X-axis servo motor 15.
An X-axis carriage 13 that is movable in the horizontal direction is provided, and a clamp 16 for holding the workpiece 17 in a vertical state is provided on the X-axis carriage 13, and the workpiece 17 is moved and positioned at the punching position of the press body 1. A punching press equipped with a punch 18 and a die 19 for punching.