JPH03272402A - Right angle adjustor - Google Patents

Abstract

PURPOSE:To set the right angle automatically by detecting the right angle of a long side for a short side on the premise of a curved rule which is manufacture with an internal rim of the long side paralleling an external rim thereof while a straightness of the long side normal to operate a corrector according to the results. CONSTITUTION:A detecting section mounting body 12 is adjusted with an accessibility adjusting screw while a degree of protrusion of one detecting section 3a is adjusted for the mounting body 12. At this point, if the right angle of a long side to a short side is correct, the one detecting section 3a is turned ON and the other detecting section 3b is turned OFF when the mounting body 12 approaches an end rim 1a of the long side with an approaching/separating device 4. In this manner, an allowable range of a correct right angle is set. The corrector 5 outputs an OK signal when the detecting section 3a is ON and the detecting section 3b OFF so as to keep itself 5 from being activated. But when both the detecting sections 3a and 3b are ON, it is judged that an angle of the long side to the short side exceeds 90 deg. to activate a pressurizing device 5 thereby pressurizing a corner of the curved rule 1 somewhat outward.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a squareness adjustment device that detects the squareness between the short side and the long side of a curved length and automatically corrects it according to the result. .

[Problems to be solved by conventional technology and invention]

Conventionally, various straightness detection devices have been proposed to detect the straightness of round bar-shaped steel materials, vibrator materials, etc.; A squareness adjustment device that also has a correction mechanism that automatically corrects when the squareness is out of range has not yet been developed.

For this reason, conventionally, if the curved scale is misapplied to the reference right-angled edge, the squareness is corrected by hitting the corner with a striking tool, and the work of applying it to the reference right-angled edge again is repeated.

Therefore, in the past, the work was done manually, and the correction of the squareness depended on the skill of the operator, resulting in extremely low work efficiency.

The present invention realizes the above-mentioned squareness adjusting device which solves these drawbacks.

[Means to solve the problem]

The present invention will now be described in detail with reference to the accompanying drawings.

A mounting and fixing device (2) for mounting and fixing the curved length (1) is provided,
The curved length (1) is placed and fixed by this placement and fixing device (2).
) is provided with a detection device (3) at the end of the - side, and an approach/separation device (4) for causing the detection device (3) to approach and move away from the edge (1a) of the - side of the curved length (1). Provide a detection device (
3) comes into contact with and presses the end edge (1a) when it approaches the end edge (la) and is depressed for a predetermined length or more, or when a contact pressure of a predetermined amount is generated, the detection part (3a) turns ON. )・
(3b) are installed at 211 locations in the detection device (3), and when the perpendicularity between the short side and the long side is correct, one of the detection parts (3a) is ON and the other detection lid (3b) is OFF. The detection device (3) is configured to output an OK flaw signal indicating a correct state, and the correction device (5) corrects the squareness when the detection device (3) does not output an OK flaw signal.
This relates to a squareness adjustment device characterized by being provided with.

[Effect]

The approach/separation device (4) is activated, and the detection device (3) approaches the -side end edge (la) of the curved scale (1) that is placed and fixed by the placement and fixation device (2).

One of the detection parts (3a) provided in the detection device (3) contacts and presses the end edge (1a) and is depressed for a predetermined length or more or a contact pressure of a predetermined amount is generated and turns ON, and the other detection part (3a) is turned ON. When the section (3b) is OFF', the detection device (3) outputs an OK flaw signal.

If the end edge (1a) is shifted back and forth because the perpendicularity between the short side and the long side of the curved measure (1) is incorrect, for example, the angle is slightly larger than 90 degrees rather than a right angle, so the detection device ( 3) When the other sensing part (3b) comes into contact with and presses against the straight edge (1a) due to the displacement to the side, and is pushed down for more than a predetermined length or a contact pressure of a predetermined amount is generated and turns ON, that is, both When the detection parts (3a) and (3b) are turned ON, or because the angle is slightly smaller than 90 degrees rather than a right angle, both detection parts (3a) and (3b) are turned on.
) is OFF, both detection devices (3)
OK scratch signal is not output from.

When the OK flaw signal is output from the detection device (3), the correction device (5) does not operate, but when the OK flaw signal is not output from the detection section f (3), the approach/separation device (4) closes the detection device ( 3) is retracted from the end 1%1(la), the correction device (5) is activated and corrects it.

〔Example〕

An embodiment in which the present invention is applied to fixing the short side of a curved scale (1), detecting the perpendicularity of the long side to the short side, and correcting the perpendicularity according to the result will be described in detail.

First, the mounting and fixing device (2) for mounting and fixing the curved length (1) will be explained based on FIGS. 1 and 2.

Mounting stand cylinders (7) are set upright on the machine stand (6) at a total of four locations: the tip and base end of the long side of the bending scale (1), and the tip and base end of the short side. A pressurizing table part (13) is provided on which the corner part of 1) is placed and has a stepped part on which the angle outside line comes into contact.
A positioning tube (8) that abuts the inner edge of the short side of 1) is erected at two locations, the tip end and the base end, and a pressing fixed body (9) that presses and abuts the outer edge of the short side of the curved length (1). The positioning simple (8
) is provided so as to be freely projectable and retractable, and a rotating arm (19) that presses the tip line of the short side in the length direction of the short side.

Therefore, the curved scale (1) is placed on the mounting base cylinder (7) and the pressure base part (13), and the pressing fixed body (9) protrudes and the curved scale (1)
), and when the rotating arm (19) presses the tip line, the inner line of the curved length (1) comes into pressure contact with the circumferential surface of the positioning piece (8), and the pressing fixed body (9) rotates. Arm (19)
, and is mounted and fixed on the step part of the pressurizing table part (13) and the positioning cylinder (8).

In this embodiment, the perpendicularity of the long side to the short side of the fixed curved scale (1) is detected, and the correction device (5) corrects the perpendicularity according to the result.

In particular, in this embodiment, the inner edge and the outer line of the long side are processed to be parallel, and the detection is performed on the assumption that the straightness of the long side is in the correct state.

Next, the detection device (3) will be explained.

The detection part mounting body (12) is attached to this rod (11) of the approach/separation device (4) consisting of a cylinder (10) and a rod (11).
), and the curved length (1) (
Two detection units (3a) and (3b) are installed protruding from Jl'l,
Due to the protrusion and depression of the rod (1 piece), the detection parts (3a) and (3b)
) is configured to move toward and away from the outside end of the long side of the curved length (1) It (la).

These detection parts 1IA (la) and (3b) are sensors that become electrically conductive and turn on when the protruding and recessed part at the tip is pushed in for a predetermined length or more. It is configured such that the degree of protrusion relative to the detection unit attachment body (12) can be adjusted.

In addition, the detection parts (3a) and (3b) are attached to the detection part mounting body (12).
), a stopper (14) is protrudingly provided in parallel with the detection parts (3a) and (3b) to prevent the detection parts (3a) and (3b) from being pressed more than necessary.

In this embodiment, the degree of approach of the detection part attachment body (12) is adjusted by the degree of proximity adjustment screw (15), and one of the detection parts (3a)
Adjust the degree of protrusion of the detection unit (detection unit on the right side in the drawing) from the detection unit mounting body (12), and if the perpendicularity of the long side to the short side is correct as shown in Figure 3, the approach/detachment device (4)
When the detection part attachment body (12) approaches the long side end edge (1a), one detection f! 15 (3a) (the detection part on the right side in the drawing) is pressed by the end edge (1a) and the protruding part at the tip is depressed for a predetermined length and turns ON, but the other detection part (3b) ( The detection unit on the left side in the drawing) is set so that it is not depressed.

This setting therefore determines the correct perpendicularity tolerance.

In other words, the position of the front and back deviation of the end edge (la) at the detection point is such that both the detection parts (3a) and (3b) are depressed forward (to the detection part side) as shown in FIG. From the position where it becomes ON (the position when the angle is slightly larger than 90a), the slightly protruding detection part (3a) that is supposed to be pressed and turned ON is pushed backward as shown in Figure 5. One of the detection parts (3a) is ON up to the position where the sensor is not depressed and both are OFF (the position when the angle is slightly smaller than 90°).

The other detection section (3b) is turned OFF, and the detection device (3) enters an acceptable range in which an OK signal is output.

Therefore, by adjusting the degree of protrusion of this detection part (3b), the permissible range of the perpendicularity can be set according to the JIS standard.

Next, the correction device (5) will be explained.

The correction device (5) includes a pressure table (13) on which the corner of the curved scale (1) described above is placed, and a pressure table part (13) on which the corner of the curved scale (1) is placed on the inside of the corner of the curved scale (1). A pressurizing device (5°) for pressurizing the position (2D) or the position (21) closer to the outside is provided on the machine base (6).

The control mechanism of this correction device (5) of this embodiment will be explained.

As shown in Fig. 3, one of the detection parts (3a) is turned on,
The other detection unit (3b) is turned off, and the detection device 1 (
When the OK signal is output from 3), the pressurizing device (5゛) does not operate.

As shown in Figure 4, both detection parts (3a) and (3b) are O
When a signal indicating that N is output is output from the detection device (3), it is determined that the angle of the long side with respect to the short side is greater than 90 degrees, and the pressurizing device (5゛) is activated. figure,
As shown in FIG. 7, pressure is applied to a position (21) on the outside of the corner of the curved length (1).

Conversely, as shown in FIG.
b) A signal indicating that both have been turned off is detected by the detection device (3).
), it is determined that the angle of the long side to the short side is smaller than 90 degrees, and the pressurizing device (5 degrees) is activated to move the corner closer to the inside of the corner shown by the imaginary line in Figure 6. Position of(
20) Pressurize.

The pressurization of the pressurization device (5°), ie the operation of the correction device (5), is as follows:
This pressurization ensures that the squareness is correct and the detection device (
The process continues from 3) until the OK signal is output.

In this embodiment, after the operation of the correction device (5) is completed, the approach/detachment device (4) is activated again, the detection device (3) performs detection, and the detection device (3) outputs an OK signal. Make sure that. If the OK signal is not output, the correction operation is repeated again.

However, if the correction device (5) operates more than a predetermined number of times and the next detection device (3) detects it, if the detection device (3) still does not output an OK signal, the correction stop lamp (16
) lights up and cancels.

In the figure, reference numeral (17) is an operation switch, and (18) is a control section.

In addition, in this embodiment, the detection device (3) is located at the end edge (1).
Although it is configured with a contact type sensor that detects the displacement of the end edge (1a) back and forth by contacting the end edge (1a), a non-contact type sensor using ultrasonic waves, infrared beams, etc.
The same operation and effect can be achieved even if the configuration is configured to detect the positional deviation of the sensor.

〔Effect of the invention〕

Since the present invention is configured as described above, it becomes a squareness adjustment device that automatically detects the squareness between the short side and the long side of a curved length and automatically corrects it according to the result.

In addition, the present invention particularly applies the detection device when the detection device approaches the end edge of one side of the bending rod, contacts and presses the end edge and is depressed for a predetermined length or more, or when a contact pressure of a predetermined amount of pressure is generated. The detection device is equipped with two detection parts that turn on, and when the squareness is correct, one of the detection parts turns on and the other turns off, outputting an OK double signal indicating that the squareness is in the correct state. Since the detection device is constructed, it is possible to set a permissible range of perpendicularity, and the perpendicularity is automatically corrected within this permissible range, resulting in an excellent perpendicularity adjustment device.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; Fig. 1 is a perspective view, Fig. 2 is a plan view of the main part with a curved measure placed on it, and Fig. 3 shows detection when the squareness is correct. Fig. 4 is an enlarged plan view of the main part in the state, and the detection state is incorrect when the OK double signal is not output because the angle is slightly larger than 90 degrees and the detection point of the end edge is shifted toward the detection device side. An enlarged plan view of the main part in Figure 5 shows the detection when the OK signal is not output because the angle is slightly smaller than 90 degrees and the detection point on the edge is shifted to the opposite side of the detection device. Fig. 6 is an enlarged explanatory view of the corner of the curved length showing the position to be pressurized by the pressure device in the correction device, and Fig. 7 is an enlarged plan view of the main part showing the operating state of the correction device. FIG. (1)...Curved length, (1a)...End edge, (2)...
・Placement and fixation device, (3)...detection device, (3a)・(
3b)...detection unit, (4)...approach/detachment device, (5
)...correction device. 1990 3rd Sword 22nd

Claims (1)

[Claims] A mounting and fixing device for placing and fixing the curved scale is provided, a detection device is provided at the end of one side of the curved scale that is mounted and fixed by the mounting and fixing device, and the detection device is placed against the edge of one side of the curved scale. An approach/separation device is provided to allow the detection device to approach and separate, and turns ON when the detection device approaches the end edge, contacts and presses the end edge, and is depressed for a predetermined length or more, or when a contact pressure of a predetermined amount is generated.
Two detection parts are installed in the detection device, and when the perpendicularity between the short side and the long side is correct, one detection part is turned on and the other detection part is turned off, indicating that the correct state is OK. A squareness adjustment device, characterized in that the detection device is configured to output a signal, and a correction device is provided for correcting the squareness when the detection device does not output an OK signal.