Split type rotating mirror

Abstract

The utility model discloses a split type rotating mirror, which is characterized in that a plurality of rotating mirror brackets are detachably arranged on the outer side of a rotating mirror connecting ring along the circumferential direction, and are uniformly distributed along the circumferential direction of the rotating mirror connecting ring; each rotating mirror bracket is detachably provided with a rotating mirror, and the reflecting surface of the rotating mirror bracket faces the outer side of the rotating mirror connecting ring; the distance between the two end faces of each rotating mirror is gradually decreased in the direction from the reflection face to the bottom of the mirror body. Two opposite end faces of two adjacent rotating mirrors are matched in shape, and a gap is reserved between the two opposite end faces. According to the split type rotating mirror, an existing integrated rotating mirror is optimally designed into the split type rotating mirror, the optical material cost, the optical processing cost and the film coating cost can be reduced, the cost of rotating mirror components is reduced to 1 / 3-1 / 4 of the cost of the original integrated rotating mirror, meanwhile, the whole structure is split type, the complexity of links such as optical processing and film coating is greatly reduced compared with the complexity of the integrated rotating mirror, and the split type rotating mirror is suitable for large-scale popularization and application. Therefore, the production cycle is greatly shortened, and the quality consistency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of optics, and particularly relates to a split rotary mirror. Background Art

[0002] In recent years, with the rapid development of the laser industry, as a new cleaning technology that is more efficient, clean, low-cost, and convenient, laser cleaning has gradually replaced traditional cleaning methods such as mechanical grinding, high-pressure water washing, chemical corrosion, and high-frequency ultrasonic methods. In the process of the development of laser cleaning equipment, with the increasing thickness of the paint layer to be cleaned and the urgent need for efficiency improvement, higher-power lasers and higher beam scanning speeds are required, and the existing galvanometer technology is difficult to meet these requirements. In order to adapt to higher power, an optical scanning system for high-power laser cleaning has been developed. In the original optical scanning system, a multi-faceted rotary mirror is used, which is an integrated multi-faceted rotary mirror, and each side surface thereof is a reflecting mirror. The optical processing of the integrated multi-faceted rotary mirror has certain difficulties, resulting in higher costs, longer production cycles, and lower quality consistency. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a split rotary mirror to solve the problems of large difficulty, long cycle, and high cost in the aspects of raw materials, processing, coating, etc. of the existing integrated rotary mirror.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions to solve the problem:

[0005] A split rotary mirror, on the outer side of the rotary mirror connection ring, a plurality of rotary mirror brackets are detachably installed along the circumferential direction, and the plurality of rotary mirror brackets are evenly distributed along the circumferential direction of the rotary mirror connection ring; on each rotary mirror bracket, a rotary mirror is detachably installed and its reflecting surface faces the outer side of the rotary mirror connection ring; the distance between the two end faces of each rotary mirror gradually decreases along the direction from the reflecting surface to the bottom of the mirror body; the two opposite end faces of two adjacent rotary mirrors have matching shapes and there is a gap between them.

[0006] Further, a plurality of installation grooves are evenly formed along the circumferential direction on the outer edge of the rotary mirror connection ring, and the number of installation grooves is the same as the number of rotary mirror brackets. Each installation groove is used to install one rotary mirror bracket; two first through holes are formed on each installation groove for installing the rotary mirror bracket.

[0007] Further, strip-shaped through holes are respectively provided on the rotary mirror connection ring between adjacent installation grooves.

[0008] Further, the rotary mirror bracket includes a rotary mirror installation part and a connection ring installation part. Among them, the rotary mirror installation part is an integrated structure composed of two side plates and a straight plate between the two side plates and perpendicular to the side plates; between the two side plates is used to fixedly install the bottom of the mirror body therein, so as to install the rotary mirror on the rotary mirror bracket.

[0009] Further, a convex block is provided on one side of the middle part of the straight plate close to the rotating mirror, so that there is a gap between the bottom of the mirror body of the rotating mirror and the straight plate.

[0010] Further, the connecting ring mounting portion includes a mounting block, which is arranged on one side of the straight plate close to the connecting ring of the rotating mirror and is integrally processed with the straight plate; two third through holes are provided on the mounting block, and the two third through holes correspond to the two first through holes on the mounting groove of the rotating mirror connecting ring. The mounting block and the mounting groove are fixed by matching screws passing through the first through hole and the third through hole, so as to install the rotating mirror bracket in the mounting groove of the rotating mirror connecting ring.

[0011] Further, a strip-shaped convex platform is provided on one side of the mounting block close to the connecting ring of the rotating mirror. The mounting groove of the rotating mirror connecting ring is T-shaped. The transverse end surface of the T-shaped mounting groove fits with the lower surface of the mounting block and is perpendicular to the vertical middle plane of the T-shaped mounting groove. The strip-shaped convex platform extends into the lower end of the T-shaped mounting groove and the two have matching shapes.

[0012] Further, the rotating mirror mounting portion and the connecting ring mounting portion of the rotating mirror bracket 2 are integrated.

[0013] Further, a counterbore is provided on each side of the bottom of the mirror body of the rotating mirror.

[0014] Further, the number of the rotating mirror brackets and the rotating mirrors is 6, 8 or 10.

[0015] Compared with the prior art, the utility model has the following technical effects:

[0016] (1) In order to meet the requirements of industrial products and reduce the cost of the core component of the rotating mirror component, the utility model optimizes the existing integral rotating mirror into a split rotating mirror, which can reduce the optical material cost, optical processing cost and coating cost, and reduce the cost of the rotating mirror component to 1 / 3 - 1 / 4 of the original integral rotating mirror.

[0017] (2) The overall structure of the utility model adopts a split type, and the complexity of its optical processing and coating links is greatly reduced compared with the integral type, thereby greatly reducing the production cycle and improving the quality consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structure schematic diagram of the utility model;

[0019] Figure 2 is the structure schematic diagram of the rotating mirror connecting ring;

[0020] Figure 3 is the structure schematic diagram of the rotating mirror bracket;

[0021] Figure 4 is the structure schematic diagram of the rotating mirror;

[0022] Figure 5 It is a schematic structural diagram of an 1 / 8 rotating mirror in an embodiment of the present utility model;

[0023] Figure 6 It is a schematic structural diagram of an 1 / 8 rotating mirror bracket in an embodiment of the present utility model.

[0024] The present utility model will be further explained below in conjunction with the accompanying drawings and specific embodiments. Specific embodiments

[0025] As Figure 1 shown, for the split rotating mirror given by the present utility model, a plurality of rotating mirror brackets 2 are detachably installed along the circumferential direction on the outer side of the rotating mirror connection ring 1, and the plurality of rotating mirror brackets 2 are evenly distributed along the circumferential direction of the rotating mirror connection ring 1; a rotating mirror 3 is detachably installed on each rotating mirror bracket 2 and its reflecting surface faces the outer side of the rotating mirror connection ring 1; the distance between the two end faces of each rotating mirror 3 gradually becomes smaller along the direction from the reflecting surface to the bottom of the mirror body, for adapting to the cooperative installation of the plurality of rotating mirrors 3; the two opposite end faces of two adjacent rotating mirrors 3 have matching shapes and there is a gap between them to avoid mutual interference.

[0026] The above technical solution optimizes the existing integral rotating mirror into a split type, which can greatly reduce the optical material cost, optical processing cost and coating cost, and reduce the cost of the rotating mirror component to 1 / 3 - 1 / 4 of the original integral rotating mirror, meeting the requirements of industrial products. At the same time, the overall structure adopts a split type, and the complexity of its optical processing and coating and other links is greatly reduced compared with the integral type, thereby greatly reducing the production cycle and improving the quality consistency.

[0027] Specifically, as Figure 2 shown, a plurality of installation grooves 1-1 are evenly opened along the circumferential direction on the outer edge of the rotating mirror connection ring 1, and the number of the installation grooves 1-1 is the same as the number of the rotating mirror brackets 2, and each installation groove 1-1 is used to install one rotating mirror bracket 2; two first through holes 1-2 are opened on each installation groove 1-1 for installing the rotating mirror bracket 2. Preferably, strip-shaped through holes 1-3 are respectively provided on the rotating mirror connection ring 1 between adjacent installation grooves 1-1 for overall weight reduction. A plurality of second through holes 1-4 are evenly opened along the circumferential direction on the rotating mirror connection ring 1 for fixedly installing the split rotating mirror of the present utility model on relevant components.

[0028] As Figure 3As shown in the figure, the rotating mirror bracket 2 includes a rotating mirror mounting portion 2-1 and a connecting ring mounting portion 2-2. Among them, the rotating mirror mounting portion 2-1 is an integral structure composed of two side plates and a straight plate perpendicular to the side plates between the two side plates; between the two side plates is used to fixedly mount the bottom of the mirror body therein, so as to mount the rotating mirror 3 on the rotating mirror bracket 2. Preferably, the bottom of the mirror body and the straight plate are fixed by bonding. Preferably, a convex block 2-3 is provided on one side of the middle of the straight plate close to the rotating mirror 3, so that there is a distance between the bottom of the mirror body of the rotating mirror 3 and the straight plate, and glue is used to bond the bottom of the mirror body and the straight plate within this distance. At the same time, the setting of the convex block 2-3 can ensure the radial positioning accuracy of the rotating mirror 3 and the rotating mirror bracket 2.

[0029] The connecting ring mounting portion 2-2 includes a mounting block, and the mounting block is arranged on one side of the straight plate close to the rotating mirror connecting ring 1 and is integrally processed with the straight plate; two third through holes 2-4 are opened on the mounting block, and the two third through holes 2-4 correspond to the two first through holes 1-2 on the mounting groove of the rotating mirror connecting ring 1. The mounting block and the mounting groove 1-1 are fixed by matching screws passing through the first through hole 1-2 and the third through hole 2-4, so as to mount the rotating mirror bracket 2 in the mounting groove 1-1 of the rotating mirror connecting ring 1.

[0030] Preferably, a strip-shaped convex platform 2-5 is provided on one side of the mounting block close to the rotating mirror connecting ring 1. The mounting groove of the rotating mirror connecting ring 1 is T-shaped. The horizontal end face of the T-shaped mounting groove 1-1 is attached to the lower surface of the mounting block and is perpendicular to the vertical middle plane of the T-shaped mounting groove, which is used for radial limiting. The strip-shaped convex platform 2-5 extends into the lower end of the T-shaped mounting groove 1-1 and their shapes match, which is used for circumferential limiting, thereby improving the assembly accuracy.

[0031] Preferably, the rotating mirror mounting portion 2-1 and the connecting ring mounting portion 2-2 of the rotating mirror bracket 2 are integrated, making the overall structure of the rotating mirror bracket 2 more stable and improving the assembly accuracy at the same time.

[0032] As Figure 4 、 Figure 5 shown, the A surface of the rotating mirror 3 is its reflecting surface, and a counterbore is provided on each side of the bottom of the mirror body of the rotating mirror 3.

[0033] Preferably, the reflecting surface of the rotating mirror 3 is processed with a coating.

[0034] Preferably, the number of the rotating mirror brackets 2 and the rotating mirrors 3 can be designed as 6, 8, 10, etc. according to the actual needs of the optical system.

[0035] Embodiment

[0036] This embodiment is described by taking one of the application scenarios of the present invention - an 8-piece rotating mirror component as an example.

[0037] The assembly process of this embodiment is as follows:

[0038] 1. Through error optimization design analysis, optical and mechanical machining precision, it is possible to achieve the one-time alignment precision meeting the requirements of the optical system without designing tooling.

[0039] 2. By selecting the temperature expansion coefficients of the optical part material and the metal material of the rotating mirror bracket, the stability of the components during use is ensured.

[0040] 3. The A surface of the 1 / 8 rotating mirror is the reflecting surface (see Figure 5 ), and it is coated according to the laser power and usage requirements; through the B surface that is perpendicular to the A surface with high precision, it is mated with the E surface of the 1 / 8 rotating mirror bracket (see Figure 6 ) to achieve y-direction positioning; and through the C surface of the 1 / 8 rotating mirror and the F surface of the rotating mirror bracket, x-direction positioning is achieved; the 1 / 8 rotating mirror and the rotating mirror bracket are fixedly connected by gluing at the midpoint of the gap between the C surface of the 1 / 8 rotating mirror and the G surface of the rotating mirror bracket. During gluing, z-direction positioning is achieved only by aligning the general assembly module surface.

[0041] 4. After the 1 / 8 rotating mirror and the rotating mirror bracket are adhesively fixed, high-precision circumferential positioning is achieved by the high-precision machining of the "pig nose" (bar-shaped boss 2-5) on the rotating mirror bracket and one of the 8 positioning grooves on the rotating mirror connection ring, and radial limit is achieved by the D surface and one of the Ts of the 8 mounting grooves of the rotating mirror connection ring; finally, screw connection and fixation with the rotating mirror connection ring are achieved through two first through holes on the rotating mirror bracket; all 8 rotating mirrors are fixedly installed in the above manner to achieve Figure 1 the rotating mirror components.

Claims

1. A split rotating mirror, comprising a rotating mirror connecting ring (1), characterized in that: A plurality of rotating mirror brackets (2) are detachably mounted on the outer side of a rotating mirror connecting ring (1) along the circumferential direction, and the plurality of rotating mirror brackets (2) are evenly distributed along the circumferential direction of the rotating mirror connecting ring (1); a rotating mirror (3) is detachably mounted on each rotating mirror bracket (2), and its reflecting surface faces the outer side of the rotating mirror connecting ring (1); the distance between the two end faces of each rotating mirror (3) gradually decreases along the direction from the reflecting surface to the bottom of the mirror body; the shapes of the two opposite end faces of two adjacent rotating mirrors (3) match each other, and there is a gap between the two.

2. The split rotating mirror according to claim 1, characterized in that: The outer edge of the rotating mirror connecting ring (1) is evenly provided with a plurality of mounting grooves (1-1) along the circumferential direction, the number of the mounting grooves (1-1) being the same as the number of the rotating mirror brackets (2), and each mounting groove (1-1) being used to mount a rotating mirror bracket (2); and each mounting groove (1-1) is provided with two first through holes (1-2) for mounting the rotating mirror bracket (2).

3. The split rotating mirror according to claim 2, characterized in that: Strip-shaped through holes (1-3) are respectively provided on the rotating mirror connecting ring (1) between adjacent mounting grooves (1-1).

4. The split rotating mirror according to claim 2, characterized in that: The rotating mirror bracket (2) comprises a rotating mirror mounting portion (2-1) and a connecting ring mounting portion (2-2), wherein the rotating mirror mounting portion (2-1) is an integrated structure consisting of two side plates and a straight plate between the two side plates and perpendicular to the side plates; the two side plates are used to fix the bottom of the mirror body therein, thereby mounting the rotating mirror (3) on the rotating mirror bracket (2).

5. The split rotating mirror according to claim 4, characterized in that: A convex block (2-3) is arranged on one side of the middle of the straight plate close to the rotating mirror (3), so that there is a distance between the bottom of the mirror body of the rotating mirror (3) and the straight plate.

6. The split rotating mirror according to claim 4, characterized in that: The connecting ring mounting portion (2-2) comprises a mounting block, which is arranged on a side of a straight plate close to a rotating mirror connecting ring (1) and is integrally formed with the straight plate; the mounting block is provided with two third through holes (2-4), the two third through holes (2-4) correspond to the two first through holes (1-2) on the mounting groove of the rotating mirror connecting ring (1), and the mounting block and the mounting groove (1-1) are fixed by passing matching screws through the first through holes (1-2) and the third through holes (2-4), thereby mounting the rotating mirror bracket (2) in the mounting groove (1-1) of the rotating mirror connecting ring (1).

7. The split rotating mirror according to claim 4, characterized in that: A strip boss (2-5) is provided on one side of the mounting block close to the rotating mirror connecting ring (1); the mounting groove of the rotating mirror connecting ring (1) is T-shaped; the transverse end surface of the T-shaped mounting groove (1-1) is in contact with the lower surface of the mounting block and is perpendicular to the vertical center plane of the T-shaped mounting groove; the strip boss (2-5) extends into the lower end of the T-shaped mounting groove (1-1) and the shapes of the two are matched.

8. The split rotating mirror according to claim 4, characterized in that: The rotating mirror mounting portion (2-1) and the connecting ring mounting portion (2-2) of the rotating mirror bracket (2) are integrated.

9. The split rotating mirror according to any one of claims 1 to 8, characterized in that: A sink is provided on both sides of the bottom of the mirror body of the rotating mirror (3).

10. The split rotating mirror according to any one of claims 1 to 8, characterized in that: The number of the rotating mirror brackets (2) and the rotating mirrors (3) is 6, 8 or 10.

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