JPH035576A - Perpendicularity measuring device for pillar steel frame - Google Patents

Abstract

PURPOSE:To improve the efficiency of execution of a work by a method wherein a target mounted to an automatic slinging device for a pillar intended to be driven is irradiated with laser beams from the lower end of a pillar member, and perpendicularity of a pillar steel frame is measured by the collecting device of the target. CONSTITUTION:A target 103 formed with a two-dimensional sensor formed by a photo diode array is mounted to an automatic slinging device 105 for a pillar intended to be driven. The target 103 is irradiated with laser beams from a laser oscillator 101 mounted in the known position of the lower end of a pillar member 109. In this case, since the collecting position of the target is changed due to inclination of the pillar member, it is examined that a sensor in which position is received to measure perpendicularity of the pillar member 109. This constitution simplifies measurement of perpendicularity of each pillar simultaneously with drive of the pillar, and improves the efficiency of execution of a work.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a column verticality measuring device when assembling a column steel frame.

[Conventional technology]

Normally, bolted connections are often used to construct steel frames, and in that case, to correct the verticality of columns, first assemble a certain range of steel members, temporarily tighten them with bolts, and then adjust the verticality of each column member. are measured using surveying equipment such as Transshift, and if corrections are necessary, they are corrected using wires and turnbuckles.

[Problem to be solved by the invention]

By the way, with this conventional method, the columns are assembled in an area that is still temporarily tightened, so while the verticality is being measured and the collapse of the column is being corrected, the assembled column steel frame remains intact. There were problems such as stability and inability to apply to fully welded joints.

The present invention is intended to solve the above-mentioned problems.It is possible to measure the verticality of a column at the same time as the erection of the column, and as a result, it can be applied to welded joints, improving construction efficiency and safety. The purpose of this invention is to provide a steel frame verticality measuring device.

[Means to solve the problem]

To this end, the column steel frame verticality measuring device of the present invention has a target consisting of a two-dimensional sensor attached to the automatic sling device, and a laser oscillation device that irradiates the target with laser light from the lower end side of the column steel frame. In addition, it is necessary to determine the verticality of the column steel based on the laser beam receiving position of the target, and to use a disk-shaped target with sensors arranged in a concentric circle with the center attached to the part where the column steel is suspended, and a disk-shaped target on the lower end of the column steel. On the same plane, 90 degrees concentric with the center of the column steel frame
The present invention is characterized in that it includes two laser oscillation devices arranged at an interval of 100 degrees and irradiates laser light to the target, and the verticality of the column steel frame is determined based on the laser light receiving position of the target.

[Effect]

The present invention is capable of automatically slinging a pillar to be erected using a target consisting of a two-dimensional sensor attached to the device, or a disc-shaped target with sensors arranged in a concentric circle with the center attached to the part where the pillar is hung. The laser beam from a laser oscillator installed at a known position at the bottom end of the column was received by the laser oscillator, and the verticality of the column was measured based on the receiving position. Therefore, it can be applied to welding joints, and it is possible to improve the welding efficiency and safety.

〔Example〕

Examples will be described below based on the drawings.

FIG. 1 is a diagram for explaining one embodiment of the column steel frame verticality measuring device of the present invention, in which 101 is a laser oscillator;
03 is a target, 105 is an automatic sling device, 107 is a lobe, and 109 is a pillar member.

In the figure, a column member 109 is lobed by an automatic sling device 105, suspended by a crane robot (not shown), and joined to a lower column. The automatic sling device 105 is a well-known device in which a pin is inserted into a hole in an ear (not shown) provided at the upper end of a column member by remote control and hung with a rope. After inserting this pillar into the lower part, it is necessary to correct the collapse of the pillar. Therefore, in this embodiment, automatic slinging is performed by installing a target 103 configured by a two-dimensional sensor consisting of, for example, a photodiode array in a device 105, and emitting a laser beam from a laser oscillator 101 installed at a known position at the lower end of a column member 109. Irradiate light. At this time, since the light receiving position of the target changes depending on the inclination of the column member, the inclination can be measured depending on which position of the sensor receives the light. In this case, if the angle of inclination of the pillar is calculated in advance for each sensor when light is received, it is possible to immediately detect in which direction and how many times the column is inclined based on the light receiving position.

In addition, as shown in FIG. 2, the crane 203 is controlled by the control signal obtained by calculation processing by the calculation processing control device 201 based on the detection signal from the verticality measuring device 207, so that the tilt of the column member is automatically adjusted. Fix it. In this way, the control amount is calculated by the arithmetic processing control device from the detected verticality data and the crane is controlled, thereby automatically erecting the pillars and setting the verticality, thereby improving the execution efficiency. Along with this improvement, safety can also be improved.

FIG. 3 is a diagram showing another embodiment of the present invention, and the same numbers as in FIG. 1 indicate the same contents. In addition, 101a, 1
01b is a laser oscillator, 111 is a disk-shaped target, 1
13 is a hanging wire, 115 is a hook, and 117 is a rope.

In this embodiment, the target is made into a disk shape so that it can be applied to a case where the target is attached to a rotating position, for example, when attached to a crane hook.

The hook 115 part is designed to be able to rotate freely to prevent abnormal forces from concentrating, and if a target like the one shown in Figure 1 is attached to this part, depending on the state of rotation, the radar light may not hit the target. Put it away. Therefore, a plurality of sensors are arranged concentrically on the disc-shaped target 111, and the center position thereof is attached to the crane hook 115.

By doing this, even if the hook rotates, the same sensor will be irradiated with laser light as long as the inclination does not change.

On the other hand, on the lower end side of the column member, two laser oscillators 10 are installed at known positions at angular intervals of 90 degrees on a concentric circle with respect to the center of the column.
1a and 101b are provided. Therefore, if the pillar is tilted in a certain direction, the light from the lasers 101a and 101b will be received by sensors at different radial positions, so it is possible to know in which direction and by how much it is tilted based on the combination.

〔Effect of the invention〕

As described above, according to the present invention, since the crane hook or automatic sling is equipped with a verticality detection device, the verticality can be measured at the same time as the pillar is erected. Since the verticality is already maintained when temporarily fixed, it can also be applied to welded joints.

In addition, the detection signal from the verticality measuring device is processed by the arithmetic processing control device, and the result is used as a control signal for the crane, so that it is possible to automatically erect columns and determine the verticality. It becomes possible to improve efficiency and safety.

[Brief explanation of the drawing]

Fig. 1 is a diagram for explaining one embodiment of the column steel frame verticality measuring device of the present invention, Fig. 2 is a diagram showing a block configuration when automating column erection and plumbness determination, and Fig. 3 The figure shows another embodiment of the invention. 101101a, LOLb--Raise oscillator, 103
...Target, 105...Automatic sling device, 10
7... Lobe, 109... Pillar member, 111... Disc-shaped target, 113... Hanging wire, 115...
・Hook, 117...rope.

Claims (2)

[Claims] (1) Equipped with a target consisting of a two-dimensional sensor attached to an automatic slinging device, and a laser oscillator that irradiates the target with a laser beam from the lower end of the column steel frame. A column steel frame verticality measuring device characterized by determining verticality. (2) A disk-shaped target with sensors arranged in a concentric circle whose center is attached to the part where the column steel frame is suspended, and a disk-shaped target on the same plane at the lower end of the column steel frame at 90 degrees concentrically with respect to the center of the column steel frame. two laser oscillation devices arranged at an interval of , and irradiating laser beams to the target, and determining the verticality of the column steel according to the laser beam receiving position of the target. measuring device.