MXPA01004613A - Device and method for alignment - Google Patents

Abstract

The present invention refers to a system and a device (10) for alignment of at least one alignable plane with reference to at least one reference plane. The device includes a main part (11), a light source (18) and a number of contact points (21a, 21b, 21c), and the light source (18) is provided to emit a light beam (25) with a scattering angle in one plane.

Description

DEVICE AND METHOD FOR ALIGNMENT Technical Field of the Invention The present invention relates to a device for aligning at least one plane that can be aligned, with respect to at least one reference plane. The invention also relates to a system and a method for aligning at least one plane that can be aligned, with respect to at least one reference plane.

BACKGROUND OF THE INVENTION Usually, in a transmission of momentum or movement between rotating arrows, for example by means of belts or pulleys, it is required that the driven and driving wheels or springs are mutually in line with each other and adjusted axially, by at least in the parallel plane. This is mainly to prevent uneven wear of the bands or strings arranged in the power transmission. Previous Art At the present time, straight and rope edges are used when aligning gear wheels / pulleys. The straight and rope edge No. 129154 is manually provided on the axial plane on one of the wheels. The straight and rope edge is then maintained in such a direction that its distance can be estimated from the axial plane of the other wheel. However, this only provides an estimate of the mutual position and the point of the wheels in one direction, that is why the straight and rope edge is changed to a new position in the other wheel and thus a new estimate can be obtained of the distance between the ruler and the wheel. This distance is compared with the first to obtain an estimate of the mutual position and the direction of the wheel in the other direction. This method, which prevents a simultaneous alignment of the wheels by an operator and by the fact that the straight and rope edge must have a length such that its periphery fits the periphery of both wheels, makes the alignment is imprecise and consumes weather. In addition, the alignment with a straight and rope edge is usually done by two mechanics.

Object of the Invention and its Most Important Features The object of the present invention is to provide a device that is simple and cost-effective, which allows the adjustment and alignment quickly and easily of at least two essentially flat surfaces. The substantially visible beam or light beam used for alignment directly shows the parallel and angular misalignment. A further object of the present invention is to provide a device primarily adapted to adjust gear wheels / pulleys in impulse or motion transmission systems having rotating arrows, preferably through optical measurement, in an industrial environment and a method for corresponding measurements. By means of the teachings of the invention, the alignment results in a reduced vibration, lengthens the life of the belts and pulleys, an appropriate tensioning of the belts and also eliminates the delays and stoppages in production. The objects mentioned above are achieved by means of the initially mentioned device, which comprises a main part, a light source and a number of contact points, and because the light source is arranged to emit a beam of light with a scattering angle. in a plane. Advantageously, the contact points can be moved and also arranged as joining devices.

In a preferred embodiment, the light beam has a scattering plane essentially parallel to the plane that can be aligned. In a more preferred embodiment the device comprises an arm. The arm and the main part can rotate in relation to each other. Additionally, the arm is provided with at least one contact point. Preferably, the contact points are arranged so that they can be moved relative to each other and / or in relation to the device. The contact points are arranged to take optional positions in a plane, whose area is only limited by the physical dimensions of the device, that these contact points, independently of the position, allow the device to transfer the position and direction from the reference plane in two essentially perpendicular coordinates opposite each other. The system according to the present invention comprises a device consisting of a main part, a light source and a number of contact points. The light source is arranged to emit a ray of light with a scattering angle in a plane. The system also includes an indicating device to be arranged on the alignable plane.

Suitably, said light beam has a scattering plane essentially parallel to the plane that can be aligned. Preferably, the indicating device consists of a part for attachment and a body provided with a mark for measurement. According to the system, the alignment is achieved when the beam of light essentially matches the mark for measurement. Preferably, at least three indicating devices are arranged in said plane. In one embodiment, the indicating device is part of said plane. According to a method of the invention for aligning at least one alignable plane with respect to at least one reference plane, in such a way that said planes become parallel to a plane, a device is arranged consisting of a main part , a light source and a number of contact points, a ray of light is emitted with a scattering angle in a plane, an indicating device is arranged in the plane that can be aligned within the area of the beam of light provided with a mark for measurement, and with respect to the adjustment of the mark for measurement, the plane that can be aligned is adjusted in such a way that the mark coincides with the line of intersection between the ray of light and the indicating device.

BRIEF DESCRIPTION OF THE DRAWINGS In the following, the invention will be described in greater detail with reference to a non-limiting embodiment shown in the accompanying drawings, in which: Figure 1 is a schematic side view of an alignment device, in accordance with the present invention, figure 2, shows a schematic perspective view of an application using the device shown in figure 1, and figure 3, shows in greater detail the section of figure 2 within a circle.

Detailed Description of the Invention Figure 1 shows a preferred embodiment of an alignment device, according to the invention. The device 10 comprises a main part 11 and an arm 12. The main part 11 and the arm 12 are arranged rotatably in relation to one another, about an axis 13. The main part is essentially designed with a first end 14 and a second end 15 connected to each other by a neck 16, which also forms an accommodating space 17. The main part 11 further comprises a light source 18 and a possible pulse unit 19, optical elements and a power source (not shown) arranged in a space at the first end 14. The second end is arranged with a stump 13, which rotatably connects the main part 11 to the arm 12. In the neck section 16 the main part is provided with a cavity 20, which in this embodiment has two joining devices 21a and 21b that can be moved relative to the main part. The space 17 is provided to receive the arm 12 when the latter is rotated into such a space, which for example facilitates handling and storage of the device. The arm 12 is also provided with a cavity 12 in the direction of its longitudinal axis, which also has a connecting device 21c that can be displaced in the cavity 22. Preferably, the joining devices 21a, 21b and 21c consist of magnets at one end, which can be fixed in the cavity by means of a securing device (not shown), for example a nut or the like in a known manner. Other additional joining devices can also be used, for example different types of fixing means, suction cups, means for adhering etc. It is also possible to provide separate joining means and points of contact. Preferably, the light source 18 consists of a laser emitting device, for example a laser diode, but other light sources can also be used. By means of, for example, optical elements (not shown), the light beam from the light source can be dispersed, preferably essentially parallel to the plane (s) to be aligned. The pulse unit can also be controlled by means of a switch arranged in the main part (not shown). An application for aligning and adjusting two pulleys 23 and 24 is shown in Figure 2. A light beam 25 is emitted from the light source 18. This light beam 25 is formed with a relatively large angle of dispersion in one direction and a very small scattering angle in the remaining directions, and creates a plane of light along its extension (essentially parallel to the plane of the wheels). The device 10 through the arm 12 is fixed on a reference part which normally consists of a 24 of the two pulleys, for example in a belt transmission. The device is fixed by means of the three connecting devices (or contact points) 21a, 21b, and 21c provided with magnets, which take optional positions and are distributed at a mutual distance as large as possible and are supported by the surface located near the periphery of the reference 24. This distribution is possible through the cavities 20 and 22 and also through the articulated mutual characteristics of the arm 12 and the main part 11 around the axis 13. The plane that forms the device, is limited only by the area of the physical dimensions of the device. These contact points, independent of the position, allow the device 10 to transfer, from the reference plane, the position and direction in two coordinates that are essentially perpendicular to each other. The function of the magnets is now to partially fix the device on the reference plane, and partially transfer the position and direction of the reference plane to the light beam 25. On the other pulley 23 a number of indicating devices 26 are arranged. In accordance with the present preferred embodiment, three indicating devices 26a, 26b and 26c are provided. Each indicating device, of which only one is shown in greater detail in Figure 3, includes a joining device 27, a body and a reference mark 29 arranged in the body. The joining device 27 may consist of a magnet or the like. The distance between the mark 29 and the end fixed to the object to be measured of the indicating device, preferably corresponds to the distance between the scattering plane of the light beam and the end of the joining device, which has contact with the reference plane. When aligned, the light beam is caused to meet the indicating devices 26a, 26b and 26c placed on the measured object 23, ie the other of the two pulleys in the web transmission. Due to the essentially large scattering angle of the light beam and the distance of the object to be measured, it becomes possible to simultaneously give with all the indicating devices. Each mark 29 on each indicating device has a fixed distance from the measurement object 10 and when it is adjusted so that the light beam essentially meets the center of these marks 29, the measured object 23 is parallel to the plane and in line with reference 24. The non-planar parallelism of the measured object 23 results in a distance / between the mark 29 and the point of impact of the light beam (figure 3) in each individual indicating device. The parallelism of planes exists when 7 * 0 (or I = 0) in each indicating device, and the line of intersection of the light beam essentially coincides with the mark 29. In one embodiment the indicating devices may consist of sensors that are capable of detect the ray of light. Preferably the adjustment of the object to be measured can be carried out automatically in such a way that it is placed parallel to the plane with the reference object. Properly, this can be achieved continuously. In one embodiment, a part of the object to be measured can be provided with a reference mark, which is used in place of the indicating devices. By adjusting the object to be measured 23, advantageously in both axial and radial directions, a parallelism of the plane between the pulleys is achieved. While a preferred embodiment has been illustrated and described, according to the invention, it is understood that there may be variations and modifications that are within the scope of the appended claims. The invention can advantageously be used in all those applications where two objects must be aligned parallel to a plane or essentially parallel to a plane. These objects can also comprise of, for example walls, tabletops, glass, ceilings etc. The design of the device can also be varied by arranging it with three or more arms, or with a fixed body provided with a number of cavities in different directions, carrying movable connecting devices. Additionally, the reference marks of the indicating devices can be arranged in the longitudinal direction of the body, with which the parallelism of the plane is achieved when a crossing is obtained at a right angle with respect to the line of intersection of the light beam. Even the light beam can be emitted in the longitudinal direction of the indicating device, whereby the reference mark can be arranged along its longitudinal direction or opposite to its longitudinal direction. It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects or products to which it refers.

Claims (16)

1. CLAIMS Having described the invention as above, the content of the following claims is claimed as property: 1. A device for aligning at least one alignable or alignable plane, with reference to at least one reference plane, characterized because the device comprises a main part, a light source and a number of contact points, and because the light source is provided to emit a beam of light with a scattering angle in a plane.
2. 2. A device according to claim 1, characterized in that the contact points can be moved.
3. 3. A device according to claim 1 or 2, characterized in that the contact points are arranged as joining devices.
4. 4. A device according to claims 1-3, characterized in that the light beam has a scattering plane essentially parallel to the alignable plane.
5. 5. A device according to any one of the preceding claims, characterized in that the device comprises an arm, and in that the arm and the main part can rotate in relation to one another.
6. 6. A device according to the claim 5, characterized in that the arm is provided with at least one contact point.
7. A device according to any of the preceding claims, characterized in that the contact points are arranged so that they can be displaced in relation to one another and / or in relation to the device.
8. A device according to any of the preceding claims, characterized in that the contact points are arranged to take optional positions in a plane, limited only by an area of the physical dimensions of the device, than the contact points independent of the position they allow the device to be transferred to a position and direction from the reference plane in two essentially perpendicular coordinates in relation to one another.
9. A device according to any of the preceding claims, characterized in that the reference plane and the plane that can be aligned are pulleys, wheels, walls or the like.
10. A system for aligning at least one plane that can be aligned, with reference to at least one reference plane, characterized in that the system comprises: a device consisting of a main part, a light source and a number of contact points, whose light source is arranged to emit a ray of light with a scattering angle in a plane, and indicating devices that are intended to be arranged on the alignable plane. ll.
11. The system according to claim 10, characterized in that the light beam from the light source has a scattering plane essentially parallel to the alignable plane.
12. The system according to claim 10 or 11, characterized in that the indicating device comprises a joint part and a body provided with a mark for measurement. 1
13. 13. The system according to claim 12, characterized in that the alignment is obtained when the light beam essentially coincides with the mark for measurement.
14. The system according to any of claims 10-13, characterized in that at least three indicating devices are arranged in said plane.
15. The system according to any of claims 10-13, characterized in that the indicating device is part of said plane.
16. 16. A method for aligning at least one alignable plane, with reference to at least one reference plane so that said planes become parallel to a plane, characterized in that the method comprises the steps of: - providing a device comprising a main part, a light source and a number of contact points, emitting a ray of light with a scattering angle in a plane, - arranging in said plane that it can be aligned within the area of the light beam, devices provided with markings for measurement, and adjusting the alignable plane with respect to the markings for measurement, in such a way that each mark coincides with a line of intersection between the ray of light and the indicating device.