CN103335233B - Laser-ray light-source assembly and assembling method thereof - Google Patents

Abstract

The invention relates to a laser line light source assembly and an assembly method thereof. A radially penetrating assembly groove is arranged in the center of the top end of the main body of the laser head assembly, and radially distributed cylindrical lenses are arranged inside; the bottom surface of the assembly groove There are inclined surfaces symmetrically; by adjusting the position of the cylindrical lens on the pair of inclined surfaces, the angle between the central axis of the lens and the laser beam output by the laser generating component is fine-tuned; when the included angle is a right angle, the cylindrical lens The ends are secured with glue. Compared with the method of adjusting with four screws, the present invention has the characteristics of simple structure, high debugging accuracy, convenient and intuitive debugging, less difficult debugging, less man-hours and the like. The main part of the component is suitable for one-time die-casting of cast aluminum. Compared with the method of machining, it has the characteristics of lower production cost, higher production efficiency, higher precision, and easy control of product quality. After the cylindrical lens is fixed with glue, there is almost no mechanical stress, and the reliability of the product is high.

Description

Laser line light source assembly and assembly method thereof

This application is a divisional application, the patent application number of the original application: 201110361215.2, the name of the invention: laser line light source assembly and its assembly method, and the application date: 2011-11-17.

technical field

The invention relates to a laser line light source assembly and an assembly method thereof.

Background technique

The laser line projector is a laser emitting instrument that can obtain horizontal planes, vertical planes, horizontal lines, and vertical lines through laser beams in construction and interior and exterior decoration operations. One of the core technologies is high quality and high reliability. Laser line light source components. In addition to the use of laser line projectors, laser line light source components are also widely used in the cutting instructions of various plates such as steel and wood; the location indication of various equipment in the textile industry; the light curtain monitoring of security areas; the straightness of high-speed rail tracks. Contact inspection; tool setting of machining equipment; medical equipment inspection area indication and many other fields.

The working principle of the laser line light source assembly is shown in Figure 2-3. The laser beam output by the laser passes through a cylindrical lens 1 and forms a bright line on the wall 2; wherein, when the laser beam is perpendicular to the central axis of the cylindrical lens , the bright line on the wall is a straight line 3; otherwise, it is an arc 4.

As shown in Figure 1, the existing laser line light source assembly includes: a hollow cylinder formed by machining of aluminum with good toughness, a laser generating component is arranged in the main body 5 of the hollow cylinder, and the main body 5 of the hollow cylinder is connected to the The top parts 6 are connected by a pair of radially symmetrical connecting blocks 7; the center of the top surface of the top part 6 is provided with a light hole 8, and the side wall of the top part 6 is provided with a radially penetrating through hole 9, so The cylindrical lens 1 is penetrated and fixed in the pair of through holes 9; the top surface of the top end 6 is provided with two pairs of screw holes 10 symmetrically distributed on both sides of the pair of connecting blocks 7; during assembly and debugging, By adjusting the screws in the two pairs of screw holes 10, the included angle between the central axis of the cylindrical lens 1 and the output laser beam of the laser generating assembly is finely adjusted, and the included angle is made to be a right angle.

The disadvantages of the above-mentioned line marking instrument in the prior art are: (1) the special structure and assembly and debugging method of the hollow cylinder 5 make it necessary to adopt aluminum material with good toughness to be machined Hard and brittle cast aluminum is used to realize this structure by one-time casting molding), the processing cost is relatively high, and the production efficiency is low; (2) four screws are used to adjust the central axis of the cylindrical lens 1 and the laser beam The included angle of the laser beam output by the component is difficult to debug; (3) After the assembly and debugging are completed, there is mechanical stress at the connecting block 7 of the laser head component, which causes the above-mentioned existing laser line light source to be in use. Part 6 is prone to loosening or metal deformation, which leads to a non-right angle between the central axis of the cylindrical lens 1 and the output laser beam of the laser generating assembly, which in turn causes the laser line output by the laser line light source to appear arc-shaped ,Affect.

Contents of the invention

The technical problem to be solved by the present invention is to provide a laser line light source assembly and its assembly method with simple structure, low cost, high reliability, low debugging difficulty and high production efficiency.

In order to solve the above-mentioned technical problems, the present invention provides a laser line light source assembly including a main body, which includes: a hollow cylindrical main body and a laser generating assembly arranged in the main body; To the through assembly groove, radially distributed cylindrical lenses are arranged in the assembly groove; a pair of radially symmetrically distributed and oppositely arranged inclined surfaces are provided on the bottom surface of the assembly groove; by adjusting the cylindrical lens in the For the position on the slope, fine-tune the angle between the central axis of the cylindrical lens and the laser beam output by the laser generating assembly; when the angle is a right angle, fix the two ends of the cylindrical lens with glue .

Further, the inclined surface is an arc-shaped inclined surface matched with the end of the cylindrical lens, so that the contact between the two ends of the cylindrical lens and the inclined surface is a line contact, and then it is convenient to fix the cylindrical lens on the cylindrical lens by glue. on the slope.

In order to facilitate fixing the cylindrical lens on the inclined surface during assembly and debugging, an elastic reed for pressing the cylindrical lens is arranged on the top surface of the top end.

A central through hole is provided in the center of the bottom surface of the assembling groove, so that the laser beam output by the laser generating assembly is directed to the cylindrical lens.

The assembly method of the above-mentioned laser line light source assembly includes the following steps:

A. Fix the laser generating assembly in the main body, and make the laser beam output by the laser generating assembly suitable for passing through the central through hole;

B. The cylindrical lens is arranged radially on the pair of slopes in the fitting groove;

C. Fix an elastic reed on the top surface of the top end to compress the cylindrical lens;

D. Fix the laser head assembly on a debugging frame, and make the laser head assembly face a wall; a pair of screws are arranged on the debugging frame, and the pair of screws are oppositely arranged at the left and right ends of the cylindrical lens, and It is suitable for adjusting the left and right positions of the cylindrical lens on the pair of slopes by synchronously rotating the pair of screws;

E. Turn on the power of the laser generating assembly, and generate a bright line on the wall; when the bright line is a rightward convex arc, synchronously fine-tune the pair of screws and make the cylindrical lens Displace to the right; otherwise, control the displacement of the cylindrical lens to the left; until the bright line on the wall is a straight line, the debugging is completed.

F. Then loosen the pair of screws on the debugging frame, remove the laser head assembly from the debugging frame, and fix it with glue between the two ends of the cylindrical lens and the bottom surface of the assembly groove. the

Compared with the prior art, the above-mentioned technical solution of the present invention has the following advantages: (1) The laser line light source assembly of the present invention adjusts the clamp between the central axis of the cylindrical lens and the laser beam output by the laser generating assembly through a pair of slopes Angle; Compared with the prior art using four screw adjustment methods, the present invention has the characteristics of simple structure, high debugging accuracy, convenient and intuitive debugging, and less difficult debugging, so it is suitable for greatly reducing labor costs. (2) The structure of the laser line light source assembly of the present invention is simple, and is suitable for one-time die-casting of cast aluminum. Compared with the method of machining in the prior art, the present invention has lower production cost, higher production efficiency, and higher precision. Higher, product quality is easy to control and so on. (3) After the cylindrical lens of the present invention is fixed by glue, there is almost no mechanical stress, so the reliability of the product is high. (4) The assembly method of the laser line light source assembly of the present invention has simple steps, high reliability, low labor intensity and is easy to master, and is suitable for greatly reducing man-hours.

Description of drawings

In order to make the content of the present invention more easily understood, the present invention will be described in further detail below in conjunction with the specific embodiments according to the accompanying drawings, wherein

FIG. 1 is a schematic structural diagram of a laser line light source assembly in the prior art;

Fig. 2 is a schematic diagram of the working principle of the laser line light source assembly in the prior art;

Fig. 3 is the bright line formed on the wall of the laser line light source assembly in the prior art;

Fig. 4 is the structural representation of the laser line light source assembly among the present invention;

FIG. 5 is a schematic diagram of an axial cross-sectional structure of the laser line light source assembly in FIG. 4 .

Detailed ways

Example 1

See Fig. 4-5, the body of the laser line light source assembly of this embodiment includes: a body, the body includes: a hollow cylindrical main body 5 and a laser generating assembly 13 arranged in the main body 5; the main body 5 A radially penetrating assembly groove 11 is provided in the center of the top end portion 6, and a radially distributed cylindrical lens 1 is arranged in the assembly groove 11; Inclined surface 12; by adjusting the position of the cylindrical lens 1 on the pair of inclined surfaces 12, the angle between the central axis of the cylindrical lens 1 and the laser beam output by the laser generating assembly 13 is finely adjusted; at this angle When it is a right angle, the two ends of the cylindrical lens 1 are fixed with glue.

As an optimal embodiment, the inclined surface 12 is an arc-shaped inclined surface matched with the end of the cylindrical lens 1, so that the contact between the two ends of the cylindrical lens and the inclined surface is a line contact, and then it is convenient to glue the The cylindrical lens is fixed on the slope.

In other embodiments, the inclined surface 12 may adopt a plane or a centrally symmetrical tapered inclined surface.

In order to facilitate fixing the cylindrical lens on the slope 12 during assembly and debugging, an elastic reed 14 for pressing the cylindrical lens 1 is provided on the top surface of the top end 6 . After the debugging is completed, the elastic reed 14 can be removed.

A central through hole 15 is provided in the center of the bottom surface of the assembly groove 11 , so that the laser beam output by the laser generator assembly 13 is directed to the cylindrical lens 1 .

Example 2

The assembly method of the laser line light source assembly in the above-mentioned embodiment 1 includes the following steps:

A. Fix the laser generating assembly 13 in the main body 5, and make the laser beam output by the laser generating assembly 13 suitable for passing through the central through hole 15;

B. The cylindrical lens 1 is arranged radially on the pair of inclined surfaces 12 in the fitting groove 11;

C, fix the elastic reed 14 on the top surface of the top end portion 6, to compress the cylindrical lens 1;

D. Fix the laser head assembly 13 on a debugging frame, and make the laser head assembly face a wall; a pair of screws are arranged on the debugging frame, and the pair of screws are oppositely arranged at the left and right ends of the cylindrical lens 1 , and is adapted to adjust the left and right positions of the cylindrical lens 1 on the pair of inclined surfaces 12 by synchronously rotating the pair of screws;

E. Turn on the power supply of the laser generating assembly 13, and generate a bright line on the wall; when the bright line is an arc convex to the right, synchronously fine-tune the pair of screws and make the cylindrical lens 1 to the right; otherwise, control the cylindrical lens 1 to move to the left; until the bright line on the wall is a straight line, the debugging is completed.

F. Then loosen the pair of screws on the debugging frame, remove the laser head assembly 13 from the debugging frame, and fix it with glue between the two ends of the cylindrical lens 1 and the bottom surface of the assembly groove 11.

The debugging frame includes: a fixing base for fixing the laser head assembly, the fixing base is provided with a fixing fixture; two sides of the fixing base are provided with brackets, and the brackets are provided with the pair of screws.

Apparently, the above-mentioned embodiments are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And these obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims (1)

1. An assembly method of a laser line light source assembly, characterized in that: the laser line light source assembly includes: a hollow cylindrical main body (5) and a laser generating assembly (13) disposed in the main body (5) ); characterized in that: the center of the top end (6) of the main body (5) is provided with a radially penetrating assembly groove (11), and the assembly groove (11) is provided with radially distributed cylindrical lenses (1) ; The bottom surface of the assembly groove (11) is provided with a pair of oblique surfaces (12) arranged radially symmetrically and opposite to each other; by adjusting the position of the cylindrical lens (1) on the pair of oblique surfaces (12), to fine-tune the angle between the central axis of the cylindrical lens (1) and the laser beam output by the laser generating assembly (13); when the angle is a right angle, at both ends of the cylindrical lens (1) fixed with glue; The inclined surface (12) is an arc-shaped inclined surface matched with the end of the cylindrical lens (1); the center of the bottom surface of the assembly groove (11) is provided with a central through hole (15); The assembly method of the laser line light source assembly includes the following steps: A. Fix the laser generating component (13) in the main body (5), and make the laser beam output by the laser generating component (13) fit to pass through the central through hole (15); B. The cylindrical lens (1) is arranged radially on the pair of slopes (12) in the assembly groove (11); C. Fix the elastic reed (14) on the top surface of the top end (6) to compress the cylindrical lens (1); D. Fix the laser head assembly (13) on a debugging frame, and make the laser head assembly (13) face a wall; a pair of screws are arranged on the debugging frame, and the pair of screws are oppositely arranged on the cylindrical lens The left and right ends of (1) are adapted to adjust the left and right positions of the cylindrical lens (1) on the pair of inclined surfaces (12) by synchronously rotating the pair of screws; E. Turn on the power of the laser generating assembly (13), and generate a bright line on the wall; when the bright line is a rightward convex arc, synchronously fine-tune the pair of screws and make the cylinder The cylindrical lens (1) is displaced to the right; otherwise, the cylindrical lens (1) is controlled to be displaced to the left; until the bright line on the wall is a straight line, the debugging is completed; F. Then loosen the pair of screws on the debugging frame, and remove the laser head assembly (13) from the debugging frame. Fastened with glue.