JPH0472509A - Floor panel level adjusting device - Google Patents

Abstract

PURPOSE:To make level adjustment of a floor panel accurately, quickly, and easily by rotating a floor panel level adjusting bolt or nut using a driver part, and thereby performing the level adjustment automatically. CONSTITUTION:The level setting value in a data setting unit 5 and the distance from the reference position pressing part to the laser beam sensing position are entered in a data control unit 8 for comparative computation by its microcomputer 9, and the difference between the two is calculated together with the moving direction to nullify the difference. The value from this calculation is passed to a digital DC servo unit 10, and a DC servo motor 16 is rotated a certain requisite amount with the aid of a servo amplifier 13. A level adjusting bolt 27 for the floor panel 26 is rotated by a driver 25 in connection with the motor 16, and the height of the floor panel 26 is adjusted. Thereby precise operation can solely be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a height adjustment device for floor panels in construction work.

[Conventional technology] Conventional floor panel height adjustment work is generally done using optical levels, water-based tools, sticks, scales, level display devices, etc., but new technologies include laser levels and level display devices. Methods of using height display devices in combination are known.

[Problems to be Solved by the Invention] However, since all the work according to the above-mentioned prior art was performed visually and manually, the work accuracy and efficiency were noticeably poor. In addition, in the method using a laser level and height display device, no matter how high the position detection accuracy of the laser level and sensor is,
It is extremely difficult for a worker to perform manual alignment according to the high-accuracy, instantaneous instructions of the sensor, so devices with lower instruction accuracy are generally used to match the visual recognition ability and work accuracy of the worker. be. As a result of accumulating errors based on these results, it was not possible to significantly exceed the accuracy and work efficiency when using a level and water system based on conventional technology.

An object of the present invention is to provide a device that can accurately, quickly, and easily adjust the height of a floor panel without relying on skilled workers.

[Means for Solving the Problems] The present invention receives a horizontal reference signal emitted from a light-emitting level by a semiconductor device comparison element, and continuously calculates the difference between the horizontal reference height and the floor panel height. , floor panel height YA so that the calculated height falls within the setting range! ! A means to solve this problem is to develop a device that automatically adjusts the height of a floor panel by rotating a bolt or nut using a drive unit.

A light-emitting level, such as a laser level, is used as the horizontal reference light source. As the laser level, there are known ones that convert the laser beam into a sheet-like horizontal reference plane signal using a lens, and ones that rotate the laser beam horizontally, and existing techniques can be used.

The main components of the device include a light receiving section, a control section, a driving section, and a power supply section.

The light receiving section consists of an optical position detection section and a signal amplification section, and the driving section uses a servo motor or a stepping motor, and based on the signal from the control section, the motor rotates the bolt or nut for adjusting the height of the floor panel. . A box wrench, driver, etc. is attached to the tip of the motor output shaft via a chuck so that the bolt or nut can be replaced depending on the size and shape of the bolt or nut. The floor height position is continuously measured by calculating the distance from the floor panel surface pressing part of the apparatus main body or the lower end of the reference position pressing part to the horizontal reference light receiving position cylinder.

The control unit consists of a data operation unit, a setting unit, and a data control unit, and receives the position signal emitted from the optical position detection unit, converts it into a height value, subtracts it from the set height value, and calculates the required corrected height. Obtain a numerical value and obtain the required rotation speed of the motor based on that value. A microprocessor is used to perform branch control of the motor based on the required number of revolutions.Each time, error correction and feedback calculation to calculate the required number of revolutions are performed to control the rotation of the motor, and the height of the floor panel is adjusted. complete it.

In addition, a screwdriver or hexagonal wrench for transmitting rotational force to the height adjustment bolt is in close contact with the bolt while transmitting rotational force to the bolt, and the vertical movement length due to the rotation of the height adjustment bolt is There are floor panels that have a mechanism that requires access from the device body. In order to adjust these floor panels, the height adjustment device uses a +/- screwdriver or hex wrench, etc., on a height adjustment bolt that moves up and down by rotation.
In order to adhere closely and transmit rotational force, it is pressed by a spring,
It is also possible to provide a driver chuck having a mechanism for moving the driver etc. in and out of the main body of the device while maintaining rotational force using a thrust mechanism.

[Operation] Place the reference position pressing part of the device at the specified reference height position and press the setting button. For example, if the height is lowered by 30 mm, set it to DN30. This completes the initial setting. . Thereafter, by applying the rotating part of the device to the height adjustment bolt of the panel to be set and pressing the adjustment start button, the height adjustment for one place is completed in a few seconds.

[Example] The main system configuration of this example includes a light receiving section, a control section, a driving section, and a power supply section. The system layout is shown in Fig. 1, and the system configuration is shown in Fig. 2.

In the figure, each part except the rotating part and the moving part is fixed with screws in a cylindrical case made of aluminum in the layout shown in FIGS. 1 and 2.

A rough air bubble level 19 was provided on the top of the device to help ensure verticality during operation of the device.

A Nikon laser level was used as a horizontal reference beam generator. The light receiving element 2 is S135 manufactured by Hamamatsu Photonics, which has a long light receiving surface that is not affected by optical beam radiation.
2 was used.

The mechanism of the H position will be explained. After pressing the adjustment start button among the setting operation buttons 6, when a laser beam is detected in the light receiving section, data control is performed on the height setting value of the data setting unit 5 and the distance from the reference position pressing point to the laser beam detection position. The microcomputer 9 of the unit 8 performs a comparison calculation and calculates the difference (required movement ji) and the difference as 0.
Calculate the direction of movement to Calculated value is digital DC
The signal is sent to the servo unit 10 and rotates the DC servo motor 16 by the required amount via the servo amplifier 13. The driver 25 connected to the motor drives the floor 2
Adjust the height of the floor panel by rotating the height adjustment bolt 27 of 6. After the required travel distance is calculated in the first calculation,
Overshoot can be prevented by calculating the light receiving position for each step while advancing the required travel distance, and by performing real-time feedback control that includes the bolt difference rate.

30 when the output shaft torque is 30Kg and the rotation speed is 60Orpm.
The time required to adjust the height of mm was about 2 seconds. The connection between the motor and driver can be found in computers, etc.
In the case of the nut rotation height adjustment method, the chuck method often used in electric screwdrivers or drills may be used, but it is also possible to use the chuck method, which is often used in electric screwdrivers or drills. If the screwdriver hits the bolt, the height of the device will not change and the height of the light receiving part will not change either, so feedback control will not be possible and the device will not work properly. One of the characteristics of this is that accurate control cannot be performed. In order to prevent such troubles, the driver and drive section of the present invention are connected by a chuck 24 that uses a hair ring slit 22 and a spring 23, so that high speed can be achieved without impairing the rotational force of the drive section. Even if the distance of the bolt head from the floor panel surface changes due to the rotation of the floor panel height adjustment bolt, the device that presses the reference position & 1E21 into close contact with the floor panel surface. The tightness remains unchanged, and there is no chance that the screwdriver will separate from the bolt and become impossible to adjust until the adjustment is complete.

In addition, instead of a screwdriver, a hexagonal wrench, box wrench, soft pad with ruler, etc. can also be attached interchangeably using the same method. A soft bat with a ruler has a rotating shaft in the center of the disc, and a cylinder made of rubber or sponge with a height of about 20 mm and a diameter of 100 mm is attached to the opposite side of the disc's rotating shaft. A diameter of 10 m made of metal etc. passes through the center of the cylinder from the center of the disk.
By providing a cylinder with a height of about 5 mm, it is shaped like a sander with a sponge attached to the outside, and the hard disk attached to the center of the sponge is similar to a state where the metal fittings are buried. Further, the reference position pressing section may have a floor panel detection function. When advancing the required travel distance, a method can be adopted in which the division change rate is automatically changed depending on the size of the remaining distance, the pitch of the bolt, etc.

[Effects of the invention] By adopting this device, even an inexperienced worker can perform the level setting work of floor panels, which was a major problem in the construction of raised floors, independently and with high precision. This reduces the work time by about 20% compared to the total conventional construction time, and can also address the social problem of a shortage of craftsmen.

In addition, by adopting a differential method that automatically changes the rate of change, overshoot and oscillation can be prevented and quick control is possible, so it is possible to adapt to bolt lengths, pitch roughness, etc.

[Brief explanation of drawings]

Figure 1 System layout diagram Figure 2 System configuration diagram Light receiving section·] Semiconductor one-dimensional optical position measuring device・2 Measurement signal amplification element 3 Control needle 4 Data setting unit 5 Settings, operation buttons・6 Settings, operation display unit 7 Data control unit 8 Microcomputer 9 Digital DC servo・10 Deviation value display counter・11 Deviation value register 12 Servo amplifier・13 Pulse encoder・14 Drive part 15 DC servo motor bow 6 Power supply section 17 battery 18 Bubble type air bubble holder・19 Grasping part 20 Reference position pressing part・21 Thrust mechanism・22 Spring battle 23 chuck 24 Driver 25 Floor panel 26 Floor panel included height adjustment bolt 2 Concrete slab (building floor) No. figure Patent applicant Innovation Center Co., Ltd. figure One sword 〆 J... Light receiving section 4... Vice'NIB 6...Settings operation buttons A... Stage f Features display unit 1δ...ψ moving part 17...tjIH ]8...Ki Ifi type round level 20...I! ! Hito 2+...l1ltQa press t, arg 22... Thrust ll11 23...Spring 24...Chuck 25...driver 26...Ma panel

Claims (2)

[Claims] (1) A light receiving section that receives a horizontal reference optical signal, a driving section that rotates the floor panel height adjustment bolt or nut, and a driving section that controls the driving section based on the light receiving position signal from the light receiving section and the set height value. A floor panel height adjustment device characterized by being equipped with a calculation control unit that (2) A screwdriver or hex wrench, etc. that transmits the rotational force of the drive unit to the height adjustment bolt transmits the rotational force to the bolt, remains in close contact with the bolt, and moves up and down as the height adjustment bolt rotates. 2. The floor spring height adjusting device according to claim 1, further comprising a thrust portion for expanding and contracting the length.