Focal length adjusting assembly for laser cleaning

Abstract

The utility model discloses a focal length adjusting assembly for laser cleaning. The focal length adjusting assembly comprises a beam expanding lens assembly and a focusing lens assembly which are arranged between an incident end and an emergent end, the beam expander assembly comprises an adjusting sleeve, and the adjusting sleeve is provided with an adjusting thread. The focus lens assembly comprises a fixed sleeve; an adjusting ring is arranged at the joint of the adjusting sleeve and the fixed sleeve in a sleeving mode, and an adjusting sliding pin extending into the adjusting thread is arranged on the adjusting ring. When equipment is used, the adjusting ring is arranged, the adjusting sliding pin on the adjusting ring extends into the adjusting thread on the adjusting sleeve, when the adjusting ring rotates, the adjusting sliding pin can slide along the interior of the adjusting thread, the position of the adjusting ring is located at the fixed position relative to the adjusting sleeve, and therefore when the adjusting sliding pin rotates, the adjusting sliding pin can slide along the interior of the adjusting thread. The adjusting sleeve can be abutted to be relatively far away from or close to the fixed sleeve, and the effect of adjusting the focal length by changing the distance between the beam expanding lens assembly and the focusing lens assembly is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to focusing structure technical field especially relates to a focal length adjustment subassembly for laser cleaning. BACKGROUND

[0002] After the production of the cannon barrel, a layer of protective oil needs to be coated on the inner wall of the pipe. When in use, the protective oil layer needs to be cleaned. At the same time, when the cannon is fired for a certain number of times, residues will be attached to the inner wall of the cannon barrel, which needs to be cleaned. The traditional cleaning method is to soak in chemical cleaning agent and use a long rod with a brush head for manual cleaning. This cleaning method is inefficient and has poor cleaning effect.

[0003] In the prior art, a laser cleaning method is used to clean the pollutants on the inner wall of the cannon barrel. For cannon barrels of different diameters, the focal point of the laser needs to be adjusted during use to ensure that the laser can effectively clean the inside of the cannon barrel. The existing focal point adjustment structure is complex and has room for improvement. Therefore, a focal length adjustment subassembly for laser cleaning is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above-mentioned deficiencies and provides a focal length adjustment subassembly for laser cleaning.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a focal length adjustment subassembly for laser cleaning, comprising:

[0006] A beam expander mirror assembly and a focusing mirror assembly are arranged between the incident end and the exit end;

[0007] The beam expander mirror assembly comprises an adjusting sleeve, and the adjusting sleeve is provided with adjusting threads;

[0008] The focusing mirror assembly comprises a fixed sleeve;

[0009] An adjusting ring is sleeved at the connection between the adjusting sleeve and the fixed sleeve, and the adjusting ring is provided with an adjusting slide pin extending into the adjusting threads;

[0010] The adjusting ring is rotated to move away from or close to the fixed sleeve through the adjusting slide pin to change the distance between the beam expander mirror assembly and the focusing mirror assembly for focal length adjustment.

[0011] Further, a focusing mirror is arranged on the side of the adjusting sleeve away from the fixed sleeve;

[0012] A beam expander mirror is arranged on the side of the fixed sleeve away from the adjusting sleeve.

[0013] Further, a limiting part is arranged on the adjusting sleeve.

[0014] The limiting component is a limiting rib or a limiting clamping groove.

[0015] Further, a limiting ring groove is arranged on the fixing sleeve.

[0016] A limiting rotating ring matched with the limiting ring groove is arranged in the adjusting ring.

[0017] Further, a pointer is arranged on the adjusting ring.

[0018] An identification scale corresponding to the pointer is arranged on the focusing mirror assembly.

[0019] Further, a driving unit is arranged on the focusing mirror assembly, and the driving unit is used to drive the adjusting ring to run to adjust the distance between the focusing mirror assembly and the beam expanding mirror assembly.

[0020] The beneficial effects of the utility model are as follows:

[0021] The adjusting ring is arranged on the device, the adjusting sliding pin on the adjusting ring extends to the inside of the adjusting thread on the adjusting sleeve, when the adjusting ring rotates, the adjusting sliding pin can slide along the inside of the adjusting thread, and the position of the adjusting ring is fixed relative to the adjusting sleeve, therefore, when the adjusting sliding pin rotates, the adjusting sliding pin can be in contact with the adjusting sleeve to move away from or close to the fixing sleeve, so that the distance between the beam expanding mirror assembly and the focusing mirror assembly is changed to adjust the focal length. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the utility model;

[0023] Figure 2 It is an installation structural schematic view of the utility model;

[0024] Figure 3 It is a sectional view of the utility model;

[0025] Figure 4 It is a three-dimensional structural view of the utility model.

[0026] In the drawing:

[0027] 01, incident end; 02, outgoing end;

[0028] 1, beam expanding mirror assembly; 11, adjusting sleeve; 12, adjusting thread; 13, limiting component;

[0029] 2, focusing mirror assembly; 21, fixing sleeve; 22, limiting ring groove;

[0030] 3, adjusting ring; 31, adjusting sliding pin; 32, pointer; 33, limiting rotating ring. DETAILED DESCRIPTION

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0032] Please see Figures 1-4 This utility model discloses a focus adjustment component for laser cleaning, comprising:

[0033] The beam expander assembly 1 and the focusing lens assembly 2 are located between the input end 01 and the output end 02. It should be noted that, as... Figure 2 As shown, this application is installed inside a tubular laser emitter. The laser enters the tube from the inlet end 01, and after being adjusted by the beam expander assembly 1 and the focusing lens assembly 2, it is emitted from the outlet end 02 and acts on the target surface.

[0034] The beam expander assembly 1 includes an adjustment sleeve 11, on which an adjustment thread 12 is provided;

[0035] The focusing lens assembly 2 includes a fixed sleeve 21;

[0036] An adjusting ring 3 is fitted at the connection between the adjusting sleeve 11 and the fixed sleeve 21, and an adjusting pin 31 extending into the adjusting thread 12 is provided on the adjusting ring 3.

[0037] The adjustment ring 3 rotates to adjust the distance between the beam expander assembly 1 and the focusing lens assembly 2 by adjusting the sliding pin 31 to abut against the adjustment sleeve 11 and move away from or closer to the fixed sleeve 21, thereby adjusting the focal length.

[0038] In the above structure, it should be added that the adjusting sleeve 11 is rotatably disposed inside the tubular laser emitter, while the fixed sleeve 21 is fixedly disposed inside the tubular laser emitter, and the axes of the adjusting sleeve 11 and the fixed sleeve 21 are on the same straight line.

[0039] With the above structural configuration, the device is equipped with an adjusting ring 3 during use. The adjusting pin 31 on the adjusting ring 3 extends into the adjusting thread 12 on the adjusting sleeve 11. When the adjusting ring 3 rotates, its adjusting pin 31 can slide along the inside of the adjusting thread 12. Since the position of the adjusting ring 3 is fixed relative to the adjusting sleeve 11, when the adjusting pin 31 rotates, it can abut against the adjusting sleeve 11 and move away from or closer to the fixed sleeve 21, thereby achieving the effect of adjusting the focal length by changing the distance between the beam expander assembly 1 and the focusing lens assembly 2.

[0040] It needs to be explained that the side of the adjusting sleeve 11 away from the fixed sleeve 21 is provided with a focusing mirror, which is a convex lens;

[0041] The side of the fixed sleeve 21 away from the adjusting sleeve 11 is provided with a beam expander, which is a concave mirror, and the beam expander is used to disperse the parallel laser entering the beam expander, and the focusing mirror is used to collect the dispersed laser.

[0042] In this application, the adjusting sleeve 11 is provided with a limiting part 13;

[0043] The limiting part 13 is a limiting rib or a limiting clamping groove.

[0044] It needs to be further explained that the fixed sleeve 21 is provided with a limiting ring groove 22;

[0045] The adjusting ring 3 is provided with a limiting rotating ring 33 matched with the limiting ring groove 22.

[0046] In the above embodiment, the structure is arranged to rotate the adjusting ring 3 on the fixed sleeve 21, so that the adjusting ring 3 can rotate in the same plane.

[0047] In a preferred embodiment, the adjusting ring 3 is further provided with a pointer 32;

[0048] The focusing mirror assembly 2 is provided with an identification scale corresponding to the pointer 32.

[0049] The structure is arranged to highlight the focal point position through the identification scale, and the user can quickly adjust the position of the adjusting ring 3 through the indication scale to adapt to different pipe diameters. It needs to be explained that the adjustment position of the adjusting ring 3 and the corresponding focal point is fixed, and in the production process, the focal point information can be indicated as a scale at the corresponding position of the pointer 32, so as to facilitate adjustment.

[0050] In another preferred embodiment, the focusing mirror assembly 2 is provided with a driving unit, which is used to drive the adjusting ring 3 to run to adjust the distance between the beam expander assembly 1, and the driving unit is a servo motor, and a grating ruler can also be provided in this application to detect the position of the lens, realize repeated positioning, and improve the accuracy of the equipment.

[0051] It needs to be explained that if the embodiment of the utility model relates to directional indication (such as up, down, left, right, front, back, …), the directional indication is only used to explain the relative position relationship, movement condition and the like between the components in a certain posture (as shown in the drawings), if the certain posture changes, the directional indication also changes accordingly.

[0052] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0053] In addition, "a plurality of" means two or more.

[0054] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A focal length adjustment assembly for laser cleaning, characterized by, The utility model relates to a focusing mirror assembly (2) and a beam expander mirror assembly (1) arranged between the entrance end (1) and the exit end (2) of a laser beam. The beam expander mirror assembly (1) comprises an adjusting sleeve (11) with adjusting threads (12) on it. The focusing mirror assembly (2) comprises a fixed sleeve (21). The adjusting sleeve (11) is connected with the fixed sleeve (21) and is sleeved with an adjusting ring (3) at the connection part, the adjusting ring (3) is provided with an adjusting slide pin (31) extending into the adjusting threads (12). The adjusting ring (3) is rotated to move away from or close to the fixed sleeve (21) through the adjusting slide pin (31) to change the distance between the beam expander mirror assembly (1) and the focusing mirror assembly (2) for focal length adjustment. The side of the adjusting sleeve (11) away from the fixed sleeve (21) is provided with a focusing mirror.

2. The focal length adjustment assembly for laser cleaning according to claim 1, wherein: The side of the fixed sleeve (21) away from the adjusting sleeve (11) is provided with a beam expander mirror. The adjusting sleeve (11) is provided with a limiting part (13).

3. The focal length adjustment assembly for laser cleaning of claim 1, wherein: The limiting part (13) is a limiting rib or a limiting clamping groove. The fixed sleeve (21) is provided with a limiting ring groove (22).

4. The focal length adjustment assembly for laser cleaning of claim 1, wherein: The adjusting ring (3) is provided with a limiting rotating ring (33) matched with the limiting ring groove (22). The adjusting ring (3) is further provided with a pointer (32).

5. The focal length adjustment assembly for laser cleaning of claim 1, wherein: The focusing mirror assembly (2) is provided with an identification scale corresponding to the pointer (32). The focusing mirror assembly (2) is provided with a driving unit for driving the adjusting ring (3) to adjust the distance between the beam expander mirror assembly (1).

6. The focal length adjustment assembly for laser cleaning of claim 1, wherein: ​

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