JPH0434984Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention is a processing machine that processes a plate-shaped workpiece, such as a turret punch press, by moving the workpiece to the origin position. The present invention relates to a workpiece abutment positioning device used for positioning.

(Prior Art) In turret punch presses, laser processing machines, and the like that process plate-shaped workpieces, the workpiece processing is performed after positioning the workpiece to the origin position. Positioning of the workpiece to the origin position is performed by abutting two perpendicular sides of the workpiece against appropriate positioning devices provided at a reference position in the X-axis direction and a reference position in the Y-axis direction.

In order to detect the positioning of the workpiece to the origin position, the positioning device is provided with a detection section made of, for example, an electric contact or the like to detect contact of the workpiece.

(Problem that the invention aims to solve) In conventional positioning devices, if dust etc. enters the detection part that detects the contact of the workpiece, the operation of the detection part becomes uncertain, making it difficult to accurately detect the contact of the workpiece. There were times when it became difficult to do so.

[Purpose of the invention] (Means for solving the problem) The present invention was made in view of the conventional problems as described above. A workpiece abutment positioning device for performing the above-mentioned workpiece abutment positioning device is provided with an actuating piece actuated by the abutment of the workpiece in a groove provided in the abutment member that abuts the workpiece to position the workpiece. A detection portion for detecting that the workpiece has come into contact with the actuation piece is provided between the actuation piece and the groove of the abutting member, and air is blown out from the groove toward the workpiece after passing through the detection portion. The abutting member is provided with an air introduction path that communicates with the groove.

(Example) Hereinafter, an example of the present invention will be described in detail using the drawings.

To facilitate understanding, the overall structure of the processing machine will first be explained. The turret punch press 1 as a processing machine shown in FIG. Set of plate material gripping devices 3
is attached to a carriage 9 which is driven by an electric motor 7 at the front of the carriage base 5 and can be moved and positioned in the X-axis direction by numerical control.

Furthermore, the carriage base 5 is driven by an electric motor 11 and can be moved and positioned in the Y-axis direction.

The abutment 13X provided at the throat of the fixed lower jaw of the plate material gripping device 3 is positioned at the It is pressed and gripped using appropriate means from the upper part of Figure 4), and after processing, it is removed in the opposite direction and carried out in the X-axis direction.

Therefore, it is not necessary to vertically displace the abutment 13X itself with respect to the pass line LP of the plate material W (see FIGS. 1 and 2).

However, the abutment 13 that defines the Y-axis reference line LY
Y is X from the left side of Figure 4 on a belt conveyor, etc.
It is carried in the axial direction, placed on the table 15, and returned by appropriate means to abut against the front of the abutment 13Y (on the right side in Fig. 4) and align with the Y-axis reference line LY, thereby forming the pass line of the plate material W. It is necessary to appear and appear on the LP and change the height position.

A detection device for detecting that the plate material W has come into contact with the two types of abutment 13X and 13Y described above is provided.

FIGS. 1 and 2 show details of the abutment 13Y that defines the Y-axis reference line LY. This abutment 13Y includes an abutment member 17 made of an electrical insulator block, and has an overall configuration that protrudes and retracts from the pass line LP of the plate material W. The embodiment shown in FIG. 2 is a left side view of only the portion of the elevating body 19 that supports the abutment member 17 and is movable up and down.

The abutment member 1 provided on the abutment 13Y
A groove portion 21 is provided on the front surface of 7 (front surface in FIG. 1, right side in FIG. 2) as an introduction path for pressurized air. is provided.

The actuating piece 25 has a compression bullet 27 in the groove 21.
When the plate material W does not come into contact with the actuating member 25, the terminal 31 of the detecting portion 29 (contact in this embodiment) provided at the lower end of the actuating piece 25 is closed, as shown in FIG. That is, the detection section 29 is illustrated as a normally closed type contact.

The detection state of the detector 29 is transmitted to the control device via a lead wire 33.

An introduction path 35 through which pressurized air is introduced is provided on the side of the groove 21.

Figure 3 shows the pressurized air that blows away dust, etc., and the butt 13Y is placed at the pass line of the plate material W.
It is a piping diagram showing an example in which the air pressure is led from a branch pipe 39 branched from a pneumatic pipe 37 that is raised beyond the LP.

Although it is unnecessary to explain, this piping diagram shows a solenoid valve 41, flow control valves with checks 43, 45,
An air cylinder 47, a piston upper limit setting stopper 49, etc. are provided.

FIG. 1 shows a piston rod 51 that drives the elevating body 19 up and down, and a guide 53 that guides the elevating and lowering.

(Effects of the Invention) As can be understood from the above description of the embodiment, according to the present invention, in the groove portion 21 in which the actuation piece 25 is installed in the abutment member 17, the actuation piece 25 is
Since the air introduction path 35 is provided so as to blow air from the groove 21 toward the workpiece after passing through the detection section 29 provided in the Even if something such as the like has entered the groove 21, it will be blown out by air, and the detection part 29 will be blown out.
can be protected from dust, etc., and does not have the problems of the prior art described above.

[Brief explanation of the drawing]

FIG. 1 is a front view of an apparatus according to an embodiment of the present invention in which the abutment is of an elevating type, and FIG. 2 is a cross-sectional view taken along the - arrow in FIG. 1, which can be used as a position-invariable apparatus. Figure 3 is an example of the pressurized air piping shown in Figure 1.
The figure is a plan view of the turret punch press. Explanatory diagram of symbols representing main parts of the drawing, 17...
Abutment member, 21... Groove, 25... Actuation piece, 29
...Detection section, 35...Introduction path.

Claims (1)

[Scope of utility model registration request] A workpiece abutment positioning device for positioning the workpiece W by abutting the workpiece W processed by the processing machine, and provided on an abutting member 17 for abutting the workpiece W and positioning the workpiece W. An actuation piece 25 that is actuated by contact with the workpiece W is provided in the groove portion 21, and a detection portion 29 that detects that the workpiece W has come into contact with the actuation piece 25 is provided in the actuation piece 25, A workpiece characterized in that the abutment member 17 is provided with an air introduction path 35 that communicates with the groove portion 21 so as to pass through the detection portion 29 and blow out air from the groove portion 21 in the direction of the workpiece W. Abutment positioning device.