CN2233078Y - Laser radial alignment locating instrument - Google Patents

Abstract

The utility model belongs to the technical field of laser centripetal alignment, positioning and debugging instruments. It includes a laser, a reflective light receiving plate with a central hole installed at the emitting end of the laser, and an optical axis adjuster that fixes the laser and adjusts the optical axis of the laser. It is characterized in that it also includes a universal joint placed at the source point. The knuckle is connected to the other end of the laser and makes the laser beam centered on the source point and adjusted within a certain solid angle. The structure of this instrument is simple, and the alignment, positioning and debugging of the object to be measured is simple, intuitive and accurate, and it is especially suitable for centripetal alignment and positioning debugging centered on a certain point. If the spherical hinge is removed, other alignment instruments can also be used.

Description

Laser centripetal alignment and locator

The utility model belongs to the technical field of laser alignment and positioning devices, in particular to the design and manufacture of laser centripetal alignment and positioning debugging instruments.

At present, it is known that most of the instruments that use lasers for alignment and positioning are collimation or autocollimation aiming and positioning instruments, that is, using the laser light source as the measuring point, and adjusting the object to be measured to be aligned and coaxial with the measuring point. The specific method is to be The measured object is adjusted to receive the laser beam and make the reflected light return to the laser light source in the same way. This kind of alignment and locator cannot be used to adjust multiple objects to be measured that are not in a straight line to be aligned with a common measuring point and centered, such as the alignment and positioning of equipment by a radiation imaging system. , that is, the requirements for centripetal alignment and positioning of each device distributed within a certain solid angle where the radiation rays of the radiation source arrive must be met.

The purpose of this utility model is to propose an improved structure for the existing laser alignment instrument, which uses a universal joint to connect with the laser, so that the laser beam emitted by the source point within a certain solid angle is reflected by the surface mirror of the object to be measured. Functional requirements for the return of the laser beam to the point of emission.

The laser centripetal alignment and positioning instrument designed by the utility model includes a laser, a reflective light receiving plate with a central hole installed on the laser emitting end, and an optical axis adjuster for fixing the laser and adjusting the optical axis of the laser. It is characterized in that It also includes a universal joint placed at the source point, which is connected with the other end of the laser and enables the laser beam to be adjusted within a certain solid angle with the source point as the center.

Said universal joint of the utility model can adopt spherical hinge, and its ball is placed in the base of the hinge and coincides with the position of the source point, and the hinge bar is in line with the optical axis of the laser. Said laser may include an outer casing, a laser tube placed therein, and an azimuth adjuster for supporting and adjusting the outer casing. The outer sleeve includes a sleeve and two end caps which are placed at both ends of the sleeve and fit with the Morse taper of the outer diameter of the sleeve. The central part of one of the end caps is connected with a sleeve, and the twisted rod is tightly pressed into the sleeve. in the casing. Said laser also includes a laser beam focuser placed between the laser emitting end and the reflective light receiving plate. Said reflective light receiving plate is a garden disc with a diameter of 100mm with a φ 10mm center hole, and the disc thickness is 2-5mm, and the warp scale and azimuth scale are arranged on the garden disc. The ball diameter of said spherical hinge is φ 10-φ 12mm and its bar diameter is φ 4-φ 10mm.

The working principle and method of the utility model for centripetal alignment, positioning, debugging and testing system are shown in Fig. 2 Pass through the center of the sphere 1 and adjust the laser to align with the azimuth of the object to be measured S1, so that the surface of the object to be measured S1 receives the beam, adjust the azimuth and polar angle of the object to be measured S1, so that the laser beam reflected by the surface mirror returns to the original path Received by the receiving plate 3 of the laser and just shot into the small hole in the center of the receiving plate, the centripetal alignment and positioning adjustment of the object to be measured S1 is completed; then adjust the orientation of the laser to the object to be measured S2, according to the same method as above Complete the centripetal alignment adjustment of the object under test S2, and so on, complete the centripetal alignment debugging work of each object under test in the test system one by one.

The utility model has the advantages of simple structure, low cost, simple, intuitive, convenient and accurate centripetal alignment, positioning and debugging of the test object in the test system; it is especially suitable for centripetal alignment, positioning and debugging centered on a certain point. If the spherical hinge is removed, it can also be used as other alignment instruments.

Brief description of the drawings:

Fig. 1 is a schematic diagram of the working principle of the utility model.

Fig. 2 is a structural schematic diagram of an embodiment of the present invention.

Fig. 3 is a schematic diagram of the application principle of the radiation imaging system in this embodiment.

The utility model designs a kind of centripetal alignment, locator embodiment its structure as shown in Figure 2, in conjunction with accompanying drawing 2 specific description is as follows:

The universal joint is a spherical hinge, the diameter of the ball 11 is 10mm, the diameter of the rod 12 is 6mm, the length of the rod is 150mm, and the hinge base 13 is an iron block of 60mm×60mm×60mm. The center of the end cap 221 . The outer diameter of the laser tube sleeve is φ50mm, and the outer diameter of the sleeve is matched with the Morse taper of the end cap. The laser tube 24 is HN-230mm. The laser beam axis adjuster 23 (8 jackscrews) fixes the laser tube in the casing, and adjusts the jackscrew so that the laser beam axis passes through the center line of the spherical hinge connecting rod. The focuser 5 is a telescope system composed of lenses. One end of the telescope is connected to the center of the other end cover 222 of the laser tube sleeve. The inner diameter of the other end has an M10 thread, and the M10 nut with a center hole of φ5mm will reflect the laser beam receiving plate 31 and fix it. On the end face of the concentrator, the receiving plate is a disc with a diameter of 100 mm and a thickness of 2-5 mm with a central hole of φ10 mm. There are radial scales and azimuth scales on the disc. The azimuth adjuster 6 is composed of a tripod 4 (coarse adjuster) and a fixed fine adjuster 42 on the tripod. The fine adjustment adopts screw adjustment, and the adjustment amount is vertically and horizontally ±5mm. The laser tube sleeve is floating on the arc-shaped stand of the fine adjuster.

Fig. 3 is a schematic diagram of the practical application of laser alignment, instrument alignment and positioning of radiation source 51, front collimator 52, rear collimator 53 and detector 54 in a large container inspection system. Accelerator target point 51, laser alignment instrument 52, front collimator 53, rear collimator 54 and detector 55, laser beam passes through point 51, passes through front collimator and rear collimator 53, 54 slit incidence On the mirror surface of the detector 55, adjust the detector azimuth to reflect the laser beam through the rear collimator, the front collimator 54, 53 slits, and return to the source point through the central hole of the reflected beam receiving plate 56.

Claims (8)

1. Laser centripetal alignment and positioning instrument, including a laser, a reflective light receiving plate with a central hole installed at the emitting end of the laser, and an optical axis adjuster for fixing the laser and adjusting the optical axis of the laser. It is characterized in that it also includes a set A universal joint at the source point, which is connected to the other end of the laser and makes the laser beam centered on the source point and adjusted within a certain solid angle. 2. The alignment and positioning instrument according to claim 1, characterized in that said universal joint is a spherical hinge, the ball is placed in the base of the hinge and coincides with the source point, and the hinge rod is in contact with the hinge. Say the optical axis of the laser is in a straight line. 3. The alignment and positioning instrument according to claim 2, characterized in that said laser includes an outer casing, a laser tube placed therein, and an azimuth adjuster for supporting and adjusting the outer casing. 4. The alignment and positioning instrument according to claim 3, characterized in that said outer sleeve includes a sleeve and two end caps placed at both ends of the sleeve to match the outer diameter of the sleeve with a Morse taper, wherein A casing is connected to the central part of one end cover, and the twisted rod is tightly pressed into the casing. 5. The alignment and positioning instrument according to claim 2, characterized in that said laser includes a laser beam focuser placed between the laser emitting end and the reflected light receiving plate. 6. The alignment and positioning instrument according to claim 1, 2, 3, 4 or 5, characterized in that said reflected light receiving plate is a disc with a diameter of 100 mm with a central hole of φ10 mm, and the thickness of the disc is 2-5mm, and the azimuth scale of the longitude scale on the disc. 7. The alignment and positioning instrument according to claim 2, 3, 4 or 5, characterized in that the spherical hinge has a ball diameter of φ10-φ12mm and a rod diameter of φ4-φ10mm. 8. The alignment and positioning instrument according to claim 3, 4 or 5, characterized in that the optical axis adjuster is composed of 6-10 adjusting top screws distributed in the screw holes of the outer casing.

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