JPH0467121B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a measuring technique for a machine tool, and particularly to a measuring technique for a punch die of a press.

(Prior art) Conventionally, machine tools have been equipped with measuring scales, etc. to determine the mounting position of the workpiece and the processing form, etc., and even in the press of a drilling machine tool,
A scale is applied to the right-angled ruler-shaped abutment member to determine the position of the hole to be drilled.

Of course, place the workpiece, such as sheet metal, on the scribing table,
Although it is possible to measure and mark each piece with a ruler, the present invention does not use this method, but instead punches holes continuously.

FIG. 6 shows one of the conventional methods. That is, when there are a large number of sheet metals 22 and a predetermined hole must be formed in one corner of the sheet metal 22, scoring lines 24, 24, . Then, as shown in the figure, this sheet metal 22 is placed on the punch die 5 of the press, and the punch 23 is slowly lowered from above.
The ruled lines 24, 24, . . . on the sheet metal 22 are aligned with the position of the punch 23. Punch 23 as it is
By lowering the press and pressing the punch 23 against the sheet metal 22, a hole will be punched at a predetermined position. Fix it so that it touches the edge.

Therefore, by fixing the contact members 20, 20 in a predetermined position and abutting the corresponding members 20, 20,
The vertical and horizontal positions of the sheet metal 22 are determined, and the second and subsequent sheet metals 22 can be punched without the above-mentioned ruled lines. However, in such a method, the above-mentioned scoring lines 24, 24 are created and the perforating material 20,
20 positioning operations are required, which increases the number of man-hours for setup operations.

(Problems to be Solved by the Present Invention) As described above, the conventional drilling process has the above-mentioned problems. The problem to be solved by the present invention is to solve these problems and to provide a drilling position measuring device that can easily position a sheet metal and perform accurate drilling at a predetermined position.

(Means for Solving the Problems) The present invention involves vertically notching the central part of a rectangular metal plate from one long side by the diameter width of a punch die, and forming a tip of the notch on the surface of the flat plate. A scale with a dot is provided along the notch, and a semicircle with a diameter between the two zero points is notched forward to form the insertion part, and the longitudinal center of the insertion part is placed on the other longitudinal side. A zero point that matches the line is set, a scale is expanded laterally and left and right, and both engaging pieces are attached to the lower surface of the flat plate at intervals that allow them to fit into the die set. When the measuring device is set, the surface of the flat plate is positioned slightly below the top surface of the punch die.

(Example) In order to describe the present invention in more detail, the following description will be given with reference to the accompanying drawings.

An embodiment of the drilling position measuring device of the present invention is shown in FIGS. 1 and 2. FIG. That is,
In the measuring device 1 of the present invention, a notch is cut halfway through the center of a rectangular flat plate 2 made of metal, starting from one side 4 of the long side 3 with the width of the diameter of a punch die 5, and cutting out the surface of the flat plate 2. Then, the tips 7, 7 of the notches are
A scale 8 as a point is provided vertically along the notch,
Furthermore, a semicircular notch having a diameter between the zero points is cut out at the front end, and the vertical notch and the semicircular notch are used as the insertion part 9.

The punch die 5 is a known one, and the die set 10
It is attached as shown in Figs. 3 to 5. The punch die 5 has a cylindrical shape, and as shown in the figure, its plane is circular.

Now, returning to the flat plate 2, on the one longitudinal side 11 of the surface part 6, mark a scale 8 that marks the vertical center line of the insertion part 9 as 0. It is expanded to the left and right sides.

The flat plate 2 of the measuring instrument 1 is thus equipped with measuring scales both vertically and horizontally, and its insertion part 9 is inserted fully toward the punch die 5 from the front side of the die set 10. Place it on top of the vertical half of the cylindrical body of Punch Die 5 (half cylinder)
to be fitted externally. In this case, the upper surface 13 of the punch die 5
The surface portion 6 of the flat plate 2 is located slightly lower as shown in FIG. Therefore, when the sheet metal 22 is placed on the punch die 5 and punched, the punching force does not act on the flat plate 2 of the measuring instrument 1. The measuring instrument 1 of the present invention is provided with engaging pieces 15, 15, which are detachably attached to the die set 10, on the lower surface 14 of the flat plate 2 in this state.

In the embodiment, the engaging pieces 15, 15 are rectangular small plates protruding at right angles from the lower surface 14 of the flat plate 2, and have the appearance of legs of the flat plate 2 (Figs.
(Fig. 5), receiving sides 16, 16 of die set 10
The die set 10 can be removably attached to the die set 10 by being in contact with the die set 10 (FIGS. 3 and 4) and being sandwiched therebetween.

To describe how to use this measuring device, as shown in FIGS. 3 and 4, insert the insertion portion 9 first toward the die set 10 of the press 17, insert it into the punch die 5 of the die set 10 as far as it will go, and then insert it. The semicircular part 18 of the part 9 is fitted onto the punch die 5, and at the same time the engaging pieces 15, 15 are fitted onto the receiving side 1 of the die set 10.
6 and 16 to complete the installation of the measuring device 1.

Next, as shown in FIG. 5, read the scale 8 on the vertical axis 19 on the surface part 6, align and fix the abutting material 20 on the scale line 8, read the horizontal scale 8 on the horizontal line 21,
Align and fix the contact material 20 on the 8th line of the scale,
Determine the position of the hole in the sheet metal 22. Here, the means for fixing the abutment members 20, 20 does not matter.

As is clear from the above description, the measuring device 1 of the present invention
By using this method, the complicated work required in the conventional method is not required, and the position of the hole can be accurately determined regardless of whether the hole exceeds the diameter of the punch die 5 or is within the diameter.

In addition, the measuring instrument 1 can be attached and detached from the die set 10 freely (in the embodiment, the leg-shaped engagement pieces 15, 15 are tightly fitted onto the die set 10 and removed by pulling them toward the front). It is easy to use.

The sheet metal 22 is positioned by abutting against the abutment members 20, 20 fixed at predetermined positions, and continuous drilling can be performed accurately.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a drilling position measuring device 1 according to an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a perspective view showing a state in which it is attached to a die set 10 of a press 17. , Figure 4 shows the third
FIG. 5 is a partially omitted perspective view showing a state in which the contact members 20, 20 are fixed, and FIG. 6 is a longitudinal cross-sectional view taken along line A to A in the figure. FIG. The conventional processing method is shown in this figure. 1... Measuring device, 2... Flat plate, 4... One side, 5
... Punch die, 6 ... Surface part, 7 ... Cutting tip, 8 ... Scale, 9 ... Insertion part, 10 ... Die set, 11 ... Other side part, 14 ... Bottom part of flat plate, 15 ...Engagement piece.

Claims (1)

[Claims] 1. Cut out the center of a rectangular metal plate by making a vertical cut with the diameter of the punch die from one long side to the middle, and mark the tip of the cut on the surface of the plate as the 0 point. A scale is provided vertically along the notch,
Furthermore, a semicircular notch having a diameter between both zero points is cut out at the front end, the vertical notch part and the semicircular notch part serve as an insertion part, and the other longitudinal side of the flat plate surface part is cut out. Place the vertical center line of the insertion part on the
The scale, which is a dot, is expanded to both sides (left and right), and both engaging pieces with a gap that are removably attached to the die set are fixed to the lower surface of the flat plate, and the insertion part is inserted into the punch die of the die set. A drilling position measuring device characterized in that the surface of the flat plate is positioned slightly below the upper surface of the punch die.