JPS6380929A - Plate stock work machine - Google Patents

Abstract

PURPOSE:To perform the burring in the whole zone on the lower face of a work by providing a grinding means freely abuttably on the work back face at the lower part of a table between the work position of a plate stock work machine and a work holding positioning device. CONSTITUTION:A dust-proof sponge 45 is provided at the height of a free ball bush 47 bearing a work W on the periphery of the cut groove 37 of a stationary table 29 and a dust collection inlet port 49 is provided in an adequate number on the lower face of the stationary table 29. A strip like abrasive cloth 51 of a grinding means is rewound from one part, passing the upper part of an air nozzle 39 via an idle roller 53 and is wound to the other part via the idle roller 55 of the other part at both outsides of the dust collection inlet port 49. The dust-proof cover 59 descending upto the upper face of the work W by being driven by the hydraulic cylinder 57 provided on an upper part frame 9 is provided at the position of a long cut groove 37 on the upper face of the work W. The work is thus ground by the abrasive cloth blown up by an air nozzle up to the inner peripheral part of a worked hole and the back face of the work immediately after being worked, and the caused burr is removed.

Description

Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a plate processing machine, and more specifically, a grinding means is provided below a table portion between the processing position of the plate processing machine and a workpiece gripping and positioning device. The present invention relates to a plate processing machine characterized by being provided so as to be able to come into contact with the back surface of a workpiece.

[Technical Background of the Invention and Problems of the Prior Art] Conventionally, when drilling a seed hole in a workpiece using a plate processing machine such as a punch press, shear cracks are generated on the bottom surface of the workpiece, and during the process of moving to the next process. When piled up, there is a problem that the upper surface of the preceding workpiece is scratched or the worker's hands and fingers are injured.

As a countermeasure, a belt sander may be placed between the sheet material processing machine and the next process, but this has the disadvantage of requiring large-scale equipment that requires special equipment for removing burrs.

(Object of the invention and its summary) The present invention was made to solve the above-mentioned inconveniences of the conventional plate material processing method. The above objective was achieved by providing the grinding means so that it could come into contact with the workpiece.

[Embodiments of the invention]

Embodiments of the present invention will be described in detail below based on FIG. 1.2.3.

FIG. 1 shows a front view of a turret punch press 1 as an example of a plate processing machine.

The turret punch press 1 has a gate-shaped structure including side frames 5.7 erected on both sides of a base 3 and an upper frame 9 bridging above the side frames 5.7.

A disk-shaped upper turret 13 on which a large number of upper molds 11 are mounted is rotatably mounted on the lower surface of the upper frame 9 by an upper rotating shaft 15.

Further, on the upper surface of the base 3, a lower turret 19 is mounted so as to be freely rotatable by a lower rotating shaft 21, and a plurality of lower molds 17 opposed to each upper mold 11 are mounted thereon.

The upper and lower turrets 13 and 19 are synchronously rotated in the same direction by a servo motor (not shown) installed in the frame, so that the upper and lower molds 11,
Reference numeral 17 is positioned directly below the ram 23 which is mounted on the lower surface of the upper frame 9 so as to be able to rise and fall freely.

Guide rails 25 extending in the left-right direction (Y-axis direction) in FIG. 1 are attached to the front and rear surfaces of the base 3 near the top surface in FIG. A movable table 27 is movably supported.

Each movable table 27 is located on both sides of the fixed table 29 fixed on the base 3 in the front and back sides of the fixed table 29 in FIG. 31, each movable table 27 is integrally connected.

A second carriage 33 is mounted on the first carriage 31 and is movable in the X-axis direction perpendicular to the moving direction of the movable table 25. Clamp devices 35, which are a plurality of workpiece gripping and positioning devices that can grip one side edge, are mounted so as to be adjustable in position in the X-axis direction.

In this embodiment, as shown in FIG.
A long kerf 37 in the X-axis direction is provided in a portion near the upper and lower turrets 13 and 19. This cut groove 37 is connected to the upper and lower turrets 13.
The reason why the clamp device 35 shown in FIG. be. Moreover, the second carriage 33 shown in FIG.
Since this position is located farthest from the turret 19, it is provided at a position close to the turret 19 in order to enable deburring of the entire lower surface of the workpiece W.

As is clear from FIG. 3, an air nozzle 39 having approximately the same length as the long kerf 37 rising from the base 3 is provided below the long kerf 37.
Two fumarole pipes 41 and 43 are provided in the width direction (Y-axis direction) of the kerf 37 so as to alternately repeat emitting and stopping.

A dust-proof sponge 45 is provided around the cut grooves 37 of the two fixed tables at the height of the free-ball bushing 47 that supports the workpiece W, and a dust collection intake port 49 is provided on the lower surface of the fixed table 29. There are a number of them. A band-shaped abrasive cloth 51 serving as a grinding means is unwound from one side on both outsides of the dust collection intake port 49, passes through an idle roller 53, passes above the three air nozzles, and then passes through the idle roller 53 on the other side.
5 and then wound onto the other side.

At the position of the long kerf 37 on the upper surface of the workpiece W, a dustproof cover 59 is provided which is driven by a fluid pressure cylinder 57 provided on the upper frame 9 and lowered to the upper surface of the workpiece W. A pinch roller 61 is rotatably provided in the dustproof cover 59 and pinches the polishing cloth 51 blown up by the air nozzle 39 between the wind pressure and the dustproof cover 59.
A dustproof sponge 63 corresponding to the dustproof sponge 45 provided on the two fixed tables is provided at the lower end of the workpiece W so as to be able to come into contact with the workpiece W.

Also, a dustproof cover 59 located near the dustproof sponge 63
A suitable number of dust collecting ports 65 are provided in the air conditioner, and a dust collecting pipe 67 is connected to an air intake device (not shown).

〔Effect of the invention〕

The board machining rock that embodies the technical concept of the present invention described in detail above is polished by an abrasive cloth blown up by an air nozzle immediately after the workpiece is machined, not only on the surface of the workpiece but also on the inner periphery of the machined hole. All the particles generated during processing are removed.

Furthermore, the removed particles of Paris and abrasive powder are not absorbed and scattered on the sliding parts of ball screws, etc.
With a relatively simple structure, we were able to easily remove debris that would cause damage during transfer to subsequent processes.

It should be noted that the deburring mechanism of the present invention may have a configuration different from that of the embodiment, for example, it may be provided on a movable table, and it is also clear that other design changes can be easily made without departing from the technical idea of the present invention. .

[Brief explanation of the drawing]

Fig. 1 is a front view of a turret pan depress as a side line in which the present invention is implemented, Fig. 2 is a cross-sectional view taken along the line I-II on the upper surface of the fixed table in Fig. 1, and Fig. 3 is a deburring grinding device. It is an enlarged elevational view of a part. (Explanation of symbols representing main parts of the drawings) 1...Turret punch press, 29...Fixed table, 37...Long kerf, 39...Air nozzle, 4
5... Dustproof sponge, 49... Dust collection intake port, 51.
...Abrasive cloth, 61...Pinch roller representative Patent attorney Yasuo Miyoshi Figure 1, Sef Figure 2

Claims (1)

[Claims] A plate processing machine characterized in that a grinding means is provided below a table portion between a processing position of the plate processing machine and a workpiece gripping and positioning device so as to be able to freely come into contact with the back surface of the workpiece.