Modularized 360-degree laser module

Abstract

The utility model relates to a modularized 360-degree laser module which is composed of a front-end projection assembly, a middle-end base body and a tail-end shell which are connected in sequence. The technical key points are as follows: the middle end base body comprises a straight lens barrel, a laser diode arranged at the rear end of the straight lens barrel, a collimating lens assembly arranged at the front end of the straight lens barrel and used for focusing and dimming, and a cap buckled at the front part of the straight lens barrel, and the top surface of the cap is provided with an axial through hole corresponding to the collimating lens assembly; the optical glass tube is connected with the cap and is concentric with the axial through hole, the cone lens is arranged at the front end of the optical glass tube and is used for changing the emitting shape of the laser, and the rear part of the straight lens cone is inserted into the tail end shell. According to the utility model, the internal structure is simplified, so that the projection precision is improved, the production cost is saved, the assembly difficulty is reduced, and the overall rejection rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser module technical field, concretely relates to a modularization 360 degree laser module, and is suitable for reticle and the like. BACKGROUND

[0002] The reticle is a kind of widely used auxiliary equipment, and compared with traditional manual auxiliary measurement, the existing reticle has greatly improved in precision and efficiency.The laser module is the important luminous element of the reticle, and the high-precision auxiliary measurement function of the reticle is essentially realized by the laser beam emitted by the laser module, so the precision of the laser module is an important symbol whether the reticle can realize its function.

[0003] The traditional laser module has the following problems: 1, to realize 360 degree laser beam, internal structure is relatively complex, including fog mirror, bare crystal, double concave mirror, double lens support, screw nut etc.;2, fixed assembly by adhesive, not only leads to the precision of laser module will be reduced due to the deformation extrusion of adhesive colloid, and increases the assembly difficulty;3, the whole laser module is completely fixed together, and any place lens scratch or precision unqualified problem will lead to the overall scrapping of the whole laser module, causes resource waste. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a modularization 360 degree laser module of reasonable structure, reliable use that solves above-mentioned problem, because internal structure is simplified, then improves the projection precision, saves production cost, reduces assembly difficulty, reduces overall scrapping rate.

[0005] The technical scheme of the utility model is:

[0006] A kind of modularization 360 degree laser module is connected by front end projection component, middle end base body, tail end shell in sequence, and its technical key points are: the middle end base body includes straight mirror tube, laser diode built-in in the rear end of straight mirror tube, collimating mirror component for focusing, light adjustment built-in in the front end of straight mirror tube, cap is buckled in the front of straight mirror tube, the top surface of the cap is provided with the axial through-hole corresponding to collimating mirror component, the front end projection component includes optical glass tube connected with cap and concentric with axial through-hole, conical mirror for changing laser emission shape is arranged in the front end of optical glass tube, and the rear part of straight mirror tube is inserted into tail end shell.

[0007] The modular 360-degree laser module, the collimating mirror assembly is composed of a first collimating mirror and a second collimating mirror riveted together, a compression ring clamped between the first collimating mirror and the second collimating mirror, the first collimating mirror is close to the laser diode side, the second collimating mirror is adjacent to the cap, the edge of the axial through hole of the cap is connected with the non-working area of the outer edge of the second collimating mirror, and the inner diameter of the compression ring is larger than the inner diameter of the straight mirror barrel.

[0008] The modular 360-degree laser module, the object side of the first collimating mirror is a concave surface, and the image side is a convex surface.

[0009] The modular 360-degree laser module, the front and rear ends of the straight mirror barrel are respectively provided with front and rear expansion holes concentric with the straight mirror barrel, the laser diode is fixed in the rear expansion hole, and the collimating mirror assembly is clamped between the cap and the hole bottom of the front expansion hole.

[0010] The modular 360-degree laser module, the taper mirror comprises a positioning portion fixed at the front end of the optical glass tube and a taper portion arranged on the positioning portion and facing the cap side, and is used for projecting a 360-degree circular scale line.

[0011] The modular 360-degree laser module, the tail end shell is provided with a fixed slot hole corresponding to the straight mirror barrel.

[0012] The modular 360-degree laser module, the rear end of the tail end shell is provided with a connecting flange.

[0013] The modular 360-degree laser module, the tail end shell is a straight pipe structure or a variable-diameter pipe structure.

[0014] The modular 360-degree laser module, the outer periphery of the cap is provided with a module air hole in communication with the axial through hole.

[0015] The beneficial effects of the utility model are:

[0016] 1, the laser module adopts a modular structure, reduces the overall scrap rate, and the split design of the middle end base body and the tail end shell can randomly replace different types of tail end shells to adapt to different installation environments and reduce the use cost.

[0017] 2, the cap of the middle end base body is connected and docked with the straight mirror barrel, and the riveted collimating mirror assembly is clamped therebetween, compared with the adhesive process, the structure is simple and stable, the problem of too large coaxiality deviation of the traditional laser module caused by the flow of the adhesive is solved, the coaxiality of the laser beam is improved, thereby the beam precision is improved, and the assembly difficulty is small.

[0018] 3. Compared with the traditional laser module, part of the mounting structure is simplified, the fog mirror, bare chip, double concave mirror, double lens support, screw and nut are cancelled, the projection precision is improved, the assembly difficulty is reduced, and the cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the external structure schematic diagram of the utility model (corresponding to embodiment 1);

[0020] Figure 2 is the axial section view of the utility model;

[0021] Figure 3 is the exploded structure schematic diagram of the utility model.

[0022] Figure 4 is the external structure schematic diagram of the utility model installed on a component of a reticle;

[0023] Figure 5 is the external structure schematic diagram of the utility model installed on another component of a reticle;

[0024] Figure 6 is the external structure schematic diagram of the utility model (corresponding to embodiment 2);

[0025] Figure 7 is the external structure schematic diagram of the utility model (corresponding to embodiment 3).

[0026] In the drawing: 1. conical mirror, 2. optical glass tube, 3. cap, 4. tail end shell, 5. module air hole, 6. second collimating mirror, 7. compression ring, 8. first collimating mirror, 9. straight mirror tube, 10. laser diode, 11. axial through hole. DETAILED DESCRIPTION

[0027] The utility model is described in detail according to the drawing of the specification. EMBODIMENT

[0028] As Figures 1-5 shown, the modular 360 ° laser module is composed of front end projection assembly, middle end base body and tail end shell connected in sequence.

[0029] The mid-end base comprises a straight lens barrel 9, a laser diode 10 built into the rear end of the straight lens barrel 9, a collimator lens assembly built into the front end of the straight lens barrel 9 for focusing and dimming, and a cap 3 snapped onto the front of the straight lens barrel 9. The top surface of the cap 3 is provided with an axial through-hole 11 corresponding to the collimator lens assembly. In this embodiment, the front and rear end surfaces of the straight lens barrel 9 respectively define concentric front and rear expanded diameter holes. The laser diode 10 is secured in the rear expanded diameter hole, and the collimator lens assembly is clamped between the cap 3 and the bottom of the front expanded diameter hole. The collimator lens assembly consists of a first collimator lens 8 and a second collimator lens 6 riveted together, and a pressure ring 7 sandwiched between the first and second collimator lenses 8 and 6. The first collimator lens 8 is positioned closer to the laser diode, while the second collimator lens 6 is adjacent to the cap 3. The edge of the axial through-hole 11 in the cap 3 abuts the outer non-working area of ​​the second collimator lens 6. The inner diameter of the pressure ring 7 is larger than that of the straight lens barrel 9. The object side surface of the first collimator 8 is a concave surface, and the image side surface is a convex surface. The object side surface of the second collimator 6 is a convex surface.

[0030] The front-end projection assembly includes an optical glass tube 2 connected to the cap 3 and concentric with the axial through hole 11, and an axle 1 provided at the front end of the optical glass tube 2 and used to change the shape of the laser emission. The axle 1 includes a positioning portion fixed to the front end of the optical glass tube 2 and a conical portion provided on the side of the positioning portion facing the cap, and is used to project a 360° circular marking line.

[0031] The rear portion of the straight lens barrel 9 is inserted into the tail end housing 4, which is provided with a fixing slot corresponding to the straight lens barrel 9. In this embodiment, the cap 3 is connected to the front end surface of the tail end housing 4, and the rear end outer surface of the tail end housing 4 is provided with a connecting flange. Other connection structures can also be designed depending on the installation scenario. The outer surface of the cap 3 is provided with a module vent 5 that communicates with the axial through hole 11. This prevents fogging of the inner wall of the optical glass tube 2 when large temperature differences occur, and also balances the pressure difference between the inside and outside of the enclosed space.

[0032] Working principle:

[0033] The laser beam is output by the laser diode 10, dimmed and focused by the first and second collimating lenses 8 and 6, and then emitted through the axial through-hole 11 of the cap 3. The laser beam is then guided by the optical glass tube 2 along its irradiation path and projected through the outer edge of the axle mirror 1 to form a 360° circular marking line. Example

[0034] like Figure 6 As shown in FIG, the modular 360° laser module is composed of a front-end projection component, a mid-end base, and a rear-end shell which are connected in sequence.

[0035] Among them, the tail end shell is a straight tube structure, and there is no flange at the tail end.

[0036] Other same as example 1. Embodiment

[0037] As shown in Figure 7 The modular 360° laser module is composed of a front end projection assembly, a middle end base body and a tail end shell connected in sequence.

[0038] The tail end shell is a variable-diameter tubular structure, and the tail end is not provided with a flange.

[0039] Other same as example 1.

[0040] The above has carried out the detailed explanation to the embodiment of the utility model, but the content is only the preferred embodiment of the utility model, cannot be considered for limiting the implementation scope of the utility model. All equivalent changes and improvements made in the scope of the utility model creation should still belong to the scope covered by the patent.

Claims

1. A modular 360° laser module, comprising a front end projection assembly, a middle end base body and a tail end shell connected in sequence, characterized in that: The middle end base comprises a straight mirror tube, a laser diode built in the rear end of the straight mirror tube, a collimating mirror assembly for focusing and light adjusting built in the front end of the straight mirror tube, and a cap fastened to the front part of the straight mirror tube, the top surface of the cap being provided with an axial through hole corresponding to the collimating mirror assembly.

2. The modular 360° laser module of claim 1, wherein: The front end projection assembly comprises an optical glass tube connected with the cap and concentric with the axial through hole, and a conical mirror provided at the front end of the optical glass tube and used for changing the shape of laser emission.

3. The modular 360° laser module of claim 2, wherein: The collimating mirror assembly is composed of a first collimating mirror and a second collimating mirror riveted together, and a compression ring clamped between the first collimating mirror and the second collimating mirror, the first collimating mirror being close to the laser diode side, the second collimating mirror being adjacent to the cap, the edge of the axial through hole of the cap being connected with the non-working area of the outer edge of the second collimating mirror, and the inner diameter of the compression ring being larger than the inner diameter of the straight mirror tube.

4. The modular 360° laser module of claim 1, wherein: The object side of the first collimating mirror is concave, and the image side is convex.

5. The modular 360° laser module of claim 1, wherein: The front and rear end surfaces of the straight mirror tube are respectively provided with front and rear expansion holes concentric with the straight mirror tube, the laser diode is fixed in the rear expansion hole, and the collimating mirror assembly is clamped between the cap and the bottom of the front expansion hole.

6. The modular 360° laser module of claim 1, wherein: The conical mirror comprises a positioning part fixed at the front end of the optical glass tube, and a conical part provided on the side of the positioning part facing the cap, and is used for projecting a 360° circular scale.

7. The modular 360° laser module of claim 1, wherein: The tail end shell is provided with a fixed slot hole corresponding to the straight mirror tube.

8. The modular 360° laser module of claim 1, wherein: The rear end of the tail end shell is provided with a connecting flange.

9. The modular 360° laser module of claim 1, wherein: The tail end shell is in a straight pipe structure or a variable-diameter pipe structure. The outer peripheral surface of the cap is provided with a module air hole communicating with the axial through hole. The tail end shell is provided with a fixed slot hole corresponding to the straight mirror tube.

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