Multi-dimensional adjustable frequency doubling crystal fixing structure

Abstract

The utility model discloses a multidimensional adjustable frequency doubling crystal fixing structure, and belongs to the technical field of optical element mounting and adjusting devices. According to the utility model, the problems that the fixing capability of the existing spring type adjusting frame on the frequency doubling crystal is weakened and the frequency doubling crystal moves along with the increase of the service time or the carrying of the laser and the like are solved. The device comprises a translation pedestal, a rotation supporting part, a rotation cylinder member and a frequency doubling crystal installation seat which are connected in sequence. The translation base is connected to the laser bottom plate; the rotary supporting part is rotationally connected to the upper surface of the translation base; the rotary supporting part comprises a first through hole; the rotary cylinder part comprises a cylinder main body; the cylinder main body penetrates into the first through hole and is rotationally connected with the rotary supporting part; and the frequency doubling crystal mounting seat is connected with the rotary cylinder piece. According to the utility model, all the components are rigidly connected, so that the connection stability is high, and the multi-dimensional adjustment of the frequency doubling crystal can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of installation and adjustment devices of optical elements, in particular to a multi-dimensionally adjustable frequency doubling crystal fixing structure. Background Art

[0002] Frequency doubling crystal is a nonlinear optical crystal used for frequency doubling effect. In laser, the wavelength of laser light is halved or the frequency is doubled after passing through the frequency doubling crystal.

[0003] The frequency doubling crystal is fixed to the existing adjustment frame, and the existing adjustment frame is fixed to the movable support structure. Based on the elastic properties of the spring on the adjustment frame, the angle between the light incident surface of the frequency doubling crystal and the laser optical axis is adjusted and completed; then the laser incident point is made to coincide with the crystal axis of the frequency doubling crystal by moving the support structure, and finally the installation and adjustment of the frequency doubling crystal is completed. Although the angle between the light incident surface of the frequency doubling crystal and the laser optical axis can be continuously adjusted by the existing adjustment frame, the fixing ability of the existing adjustment frame to the frequency doubling crystal is weakened with the increase of usage time, the weakening of the spring performance or the transportation of the laser and other activities, so that the angle between the light incident surface of the frequency doubling crystal and the laser optical axis changes, so that the frequency doubling effect is weakened or disappears, and finally the light output quality of the laser is reduced. Utility Model Content

[0004] In view of the above analysis, the utility model aims to provide a multi-dimensionally adjustable frequency doubling crystal fixing structure to solve the problem that the fixing ability of the existing spring-type adjustment frame on the frequency doubling crystal is weakened and the frequency doubling crystal moves as the use time increases or the laser is transported.

[0005] The purpose of this utility model is mainly achieved through the following technical solutions:

[0006] The utility model provides a multi-dimensionally adjustable frequency doubling crystal fixing structure, comprising a translation base, a rotation support part, a rotating cylinder and a frequency doubling crystal mounting seat which are connected in sequence;

[0007] The translation base is connected to the laser base plate and can move in a direction perpendicular to the optical axis;

[0008] The rotating support part is rotatably connected to the upper surface of the translation base;

[0009] The rotation support portion includes a first through hole;

[0010] The rotating cylindrical member comprises a cylindrical body; the cylindrical body penetrates into the first through hole and is rotatably connected with the rotating support part;

[0011] The frequency doubling crystal mounting seat is located in the central through hole of the cylinder body and is connected to the rotating cylinder member.

[0012] Furthermore, the translation base also includes a positioning shaft;

[0013] The rotation support also includes a rotation guide assembly;

[0014] The rotation guide assembly includes a first arc-shaped connecting hole and a bolt member penetrating the first arc-shaped connecting hole;

[0015] The rotating support part is connected to the translation base through bolts.

[0016] Further, the rotation support part also includes a rotation body;

[0017] The rotating body includes a protrusion and extension ends arranged on both sides of the protrusion;

[0018] A first through hole is provided on the convex block;

[0019] A first arc-shaped connecting hole is arranged on the extending end.

[0020] Furthermore, the rotating support part also includes a rotating support member and a rotating stand;

[0021] The support member is rotatably connected to the upper surface of the translation base;

[0022] A first arc-shaped connecting hole is provided on the support member;

[0023] A first through hole is arranged on the rotating stand.

[0024] Furthermore, the rotating support part also includes an adapter and a rotating shaft connected to the rotating stand;

[0025] The lower end of the adapter is slidably connected to the support member; the adapter reciprocates between the upper end and the lower end of the support member;

[0026] The upper end of the adapter is rotatably connected to the rotating shaft.

[0027] Further, a fine-tuning component is included;

[0028] The fine-tuning assembly includes a fixing block and a top screw;

[0029] The top screw is screwed into and passes through the fixing block.

[0030] Further, the fixing block is connected to the laser base plate;

[0031] and / or the fixed block is connected to the translation base;

[0032] And / or the fixed block is connected to the rotation support part.

[0033] Further, the rotating cylinder member includes a flange connected to the cylinder body;

[0034] The flange includes a second arc-shaped connecting hole;

[0035] The plurality of second arc-shaped connecting holes are evenly arranged in the circumferential direction.

[0036] Further, the flange also includes a planar end.

[0037] Furthermore, the translation base also includes an oblong hole; the long axis direction of the oblong hole is the same as the moving direction of the translation base.

[0038] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0039] 1. Because the connection between the translation base and the laser base plate, the connection between the rotation support and the translation base, the connection between the rotating cylinder and the rotating support, and the connection between the frequency doubling crystal mount and the rotating cylinder are all rigid connections, specifically, they are all screwed, and the fixed connection has good stability. During long-term use, the fixing ability of the frequency doubling crystal remains unchanged, the frequency doubling crystal will not shift, the angle between the light incident surface of the frequency doubling crystal and the laser optical axis does not change, and the frequency doubling efficiency is always at the highest, ensuring that the light output quality of the laser does not change.

[0040] 2. The frequency doubling crystal fixing structure of the utility model has at least three-dimensional adjustment. The first dimension is the translation adjustment of the translation base, that is, the left and right position movement adjustment of the frequency doubling crystal, so as to adjust the coincidence of the center of the light incident surface of the frequency doubling crystal with the optical axis. The second dimension is the rotation adjustment of the rotating support part on the upper surface of the translation base, that is, the adjustment of the angle between the light incident surface and the optical axis of the frequency doubling crystal is achieved, so as to ensure that the reflected light on the light incident surface will not deviate from the original optical path. The third dimension is the rotation adjustment of the cylindrical body in the rotating cylindrical part in the first through hole and around the central axis of the first through hole, that is, the rotation adjustment of the frequency doubling crystal, so as to achieve the adjustment of the frequency doubling efficiency of the frequency doubling crystal and the polarization state of light.

[0041] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents particularly pointed out in the embodiments of the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0043] Figure 1 This is one of the structural schematic diagrams of a multi-dimensionally adjustable frequency doubling crystal fixing structure of the utility model;

[0044] Figure 2 for Figure 1A schematic diagram of the structure of the rotating support portion;

[0045] Figure 3 It is a structural schematic diagram of the translation base;

[0046] Figure 4 It is a structural schematic diagram of a rotating cylinder;

[0047] Figure 5 It is a schematic diagram of the structure of the connection between the rotating cylinder, the frequency doubling crystal mounting seat and the frequency doubling crystal;

[0048] Figure 6 It is a structural schematic diagram of a frequency doubling crystal mounting base;

[0049] Figure 7 This is the second structural schematic diagram of a multi-dimensionally adjustable frequency doubling crystal fixing structure of the utility model;

[0050] Figure 8 for Figure 7 A schematic diagram of the structure of the middle support member;

[0051] Fig. 9 for Figure 7 The structural diagram of the middle rotating stand;

[0052] Fig.10 This is the third structural schematic diagram of a multi-dimensionally adjustable frequency doubling crystal fixing structure of the utility model;

[0053] Fig.11 for Fig.10 A schematic diagram of the structure of the rotating support portion;

[0054] Fig.12 for Fig.11 The schematic diagram of the structure of the intermediate transfer component;

[0055] Fig.13 It is a structural schematic diagram of a multi-dimensional adjustable frequency doubling crystal fixing structure installed on a laser base plate in the utility model;

[0056] Fig.14 One of the structural diagrams of the fine-tuning component;

[0057] Fig.15 This is the second structural diagram of the fine-tuning component;

[0058] Fig.16 for Fig.15 A schematic diagram of the structure of the first position component;

[0059] Fig.17 for Fig.15 Schematic diagram of the structure of the second position component.

[0060] Reference numerals:

[0061] 100-translation base, 200-rotation support, 300-rotation cylinder, 400-frequency doubling crystal mounting seat, 500-laser base plate, 600-fine-tuning assembly, 700-frequency doubling crystal;

[0062] 110-long round hole, 120-positioning shaft;

[0063] 210 - first through hole, 220 - first arc-shaped connecting hole, 230 - rotating body, 240 - supporting member, 250 - rotating seat, 260 - adapter, 270 - rotating shaft, 280 - locking plate;

[0064] 231-bump, 232-extension end;

[0065] 241-connecting seat, 242-supporting arm;

[0066] 310-cylinder body, 320-flange, 330-second fixed connection member;

[0067] 321 - second arc-shaped connecting hole, 322 - first plane portion, 323 - second plane portion;

[0068] 610-fixed block, 620-top screw, 630-adjustment unit;

[0069] 631-base, 632-first position component, 633-second position component;

[0070] 6321-connecting rod, 6322-moving seat;

[0071] 6331-ball joint unit, 6332-intermediate connecting piece. DETAILED DESCRIPTION

[0072] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0073] like Figure 1 As shown, a spatial coordinate system is established, the direction of the long axis of the translation base 100 is set as the X axis, the direction of the short axis of the translation base 100 is set as the Y axis, and the central axis of the positioning axis 120 is set as the Z axis.

[0074] Example 1

[0075] A specific embodiment of the utility model discloses a multi-dimensional adjustable frequency doubling crystal fixing structure, such as Figure 1 , Figure 2 and Figure 4As shown, it includes a translation base 100, a rotation support part 200, a rotating cylinder part 300 and a frequency doubling crystal mounting seat 400 which are connected in sequence; the translation base 100 is connected to the laser base plate 500 and can move in a direction perpendicular to the optical axis; the rotating support part 200 is rotatably connected to the upper surface of the translation base 100; the rotating support part 200 includes a first through hole 210; the rotating cylinder part 300 includes a cylinder body 310; the cylinder body 310 penetrates the first through hole 210 and is rotatably connected to the rotation support part 200; the frequency doubling crystal mounting seat 400 is located in the central through hole of the cylinder body 310 and is connected to the rotating cylinder part 300.

[0076] In this embodiment, because the connection between the translation base 100 and the laser body, the connection between the rotation support part 200 and the translation base 100, the connection between the rotating cylinder 300 and the rotating support part 200, and the connection between the frequency doubling crystal mounting seat 400 and the rotating cylinder 300 are all rigid connections, specifically, they are all screwed, and the fixed connection has good stability. During long-term use, the fixing ability of the frequency doubling crystal remains unchanged, the frequency doubling crystal will not shift, the angle between the light incident surface of the frequency doubling crystal and the laser optical axis does not change, the frequency doubling efficiency is always at the highest, ensuring that the light output quality of the laser does not change.

[0077] In this embodiment, by providing the first through hole 210 and the cylindrical body 310, the cylindrical body 310 can rotate around its central axis in the first through hole 210, which is beneficial to the matching adjustment of the crystal axis of the frequency doubling crystal 700 and the polarization state of the incident laser.

[0078] In this embodiment, the frequency doubling crystal fixing structure has three-dimensional adjustment. The first dimension is the translation adjustment of the translation base 100, that is, the movement adjustment of the left and right position of the frequency doubling crystal 700 is realized; the second dimension is the rotation adjustment of the rotating support part 200 on the translation base 100, that is, the adjustment of the angle between the light incident surface of the frequency doubling crystal 700 and the optical axis of the incident light; the third dimension is the rotation adjustment of the cylindrical body 310 in the rotating cylindrical member 300 in the first through hole 210 and around the central axis of the first through hole 210, that is, the rotation adjustment of the frequency doubling crystal 700, so as to complete the matching adjustment of the crystal axis of the frequency doubling crystal 700 and the polarization state of the incident laser.

[0079] In this embodiment, by setting the central through hole, the frequency doubling crystal mounting seat 400 is arranged in the central through hole after clamping the frequency doubling crystal 700, and the frequency doubling crystal mounting seat 400 is fixedly connected with the rotating cylinder 300 to complete the clamping and fixing of the frequency doubling crystal 700. After the frequency doubling crystal 700 is clamped and fixed, the translation base 100, the rotating support part 200 and the rotating cylinder 300 are connected in sequence. First, the laser enters from the center of the light incident surface of the frequency doubling crystal 700 by moving the translation base 100, and the position of the moving translation base 100 is locked; then, the rotating cylinder 300 is rotated to match the crystal axis of the frequency doubling crystal 700 with the polarization state of the light until the frequency doubling efficiency reaches the highest, and the connection between the rotating cylinder 300 and the rotating support part 200 is locked; finally, the rotating support part 200 is adjusted so that the reflected light of the frequency doubling crystal 700 does not enter the laser light path, and the connection between the rotating support part 200 and the translation base 100 is locked.

[0080] Furthermore, considering the controllability of the moving direction of the translation base 100, an oblong hole 110 is provided on the translation base 100. Figure 3 As shown, the long axis direction of the oblong hole 110 is the same as the moving direction of the translation base 100. In more detail, considering the controllability of the rotation of the rotation support part 200 on the upper surface of the translation base 100, a positioning shaft 120 is provided on the translation base 100. A positioning hole matching the positioning shaft 120 is provided on the rotation support part 200, and the positioning shaft 120 is rotatably connected to the positioning hole.

[0081] Furthermore, the rotation support part 200 also includes a rotation guide assembly; the rotation guide assembly includes a first arc-shaped connecting hole 220 and a bolt member passing through the first arc-shaped connecting hole 220; through the bolt member, the rotation support part 200 is connected to the translation base 100.

[0082] In this embodiment, by setting the positioning shaft 120 and the first arc-shaped connecting hole 220, it is achieved that on the translation base 100, the rotating support part 200 uses the positioning shaft 120 as the rotating axis and rotates along the arc of the first arc-shaped connecting hole 220, which not only fixes the rotation line of the rotating support part 200 but also facilitates fine adjustment of the rotating support part 200.

[0083] Further, the rotation support part 200 includes a first type of rotation support part, which includes a first through hole 210, a first arc-shaped connecting hole 220 and a rotation body 230. Figure 2 As shown, on the translation base 100, the rotating body 230 rotates along the first arc-shaped connecting hole 220 with the positioning axis 120 as the rotating axis, so as to drive the frequency doubling crystal 700 on the frequency doubling crystal mounting seat 400 to rotate, so as to achieve the purpose of preventing the reflected light of the frequency doubling crystal 700 from entering the laser light path.

[0084] In this embodiment, the rotating body 230 includes a protrusion 231 and an extension end 232. Figure 2 As shown, the two extension ends 232 are symmetrically connected to the two sides of the protrusion 231 with the protrusion 231 as the center. The protrusion 231 is provided with a first through hole 210, and each extension end 232 is provided with a first arc-shaped connection hole 220.

[0085] In this embodiment, when the rotating body 230 is connected to the translation base 100 and is not locked, the bolt member passes through the first arc-shaped connection hole 220 and is connected to the translation base 100. At this time, the bolt member plays a limiting role to prevent the rotating body 230 from excessive rotation. After the rotating body 230 rotates to the right position, the bolt member is fastened to the translation base 100 to lock the rotating body 230 on the translation base 100. At this time, the bolt member plays a limiting role and a locking role. The bolt member and the first arc-shaped connection hole 220 constitute a rotation guide assembly of the rotation support part 200, which is conducive to limiting the rotation direction of the rotation support part 200.

[0086] Furthermore, considering the problem of inaccurate adjustment and low adjustment efficiency when manually adjusting the position of the frequency doubling crystal 700, the multi-dimensionally adjustable frequency doubling crystal fixing structure of this embodiment further includes a fine-tuning component 600, such as Figure 1 As shown, the fine-tuning assembly 600 includes a fixing block 610 and a top screw 620. The top screw 620 is screwed and passes through the fixing block 610. Fig.14 When the fixing block 610 is fixed, the top screw 620 is brought into contact with the part to be adjusted, and the extension distance of the top screw 620 is controlled by rotation to push the part to be adjusted to move, thereby achieving the purpose of accurately controlling the movement of the part to be adjusted and improving the adjustment efficiency.

[0087] In this embodiment, in order to make the fine-tuning component 600 have a larger adjustment range, the fine-tuning component 600 further includes an adjustment unit 630, such as Fig.15 As shown, the adjustment unit 630 includes a base 631 and a second position assembly 633. The second position assembly 633 includes a ball joint unit 6331, and the ball joint unit 6331 includes a ball head rod with a ball head and a support block with a ball head seat, as shown in FIG. Fig.17 The base 631 is directly connected to the second position component 633, specifically: the base 631, the ball joint unit 6331 and the fixing block 610 are connected in sequence. In this embodiment, the second position component 633 also includes an intermediate connecting member 6332, such as Fig.17 As shown, more than two ball joint units 6331 are provided, and two adjacent ball joint units 6331 are connected via an intermediate connecting member 6332 .

[0088] In this embodiment, the adjustment unit 630 further includes a first position component 632, and the base 631, the first position component 632 and the second position component 633 are connected in sequence. Fig.15 As shown, the first position assembly 632 includes a connecting rod 6321 and a moving seat 6322. Fig.16 As shown, the base 631, the connecting rod 6321, the moving seat 6322, the ball joint unit 6331 and the fixing block 610 are connected in sequence.

[0089] Furthermore, the multi-dimensional adjustable frequency doubling crystal fixing structure of this embodiment further includes a laser base plate 500, and the translation base 100 is connected to the upper surface of the laser base plate 500, such as Fig.13 As shown, the translation base 100 can be fixed.

[0090] In this embodiment, the translation base 100 is connected to the laser base plate 500 through a first fixed connection member. Fig.13 As shown. After the first fixed connector passes through the oblong hole 110 on the translation base 100, it is screwed to the laser base plate 500 and is not locked. At this time, the translation base 100 can move along the long axis direction of the oblong hole 110. The oblong hole 110 and the first fixed connector constitute the translation guide assembly of the translation base 100 to make the moving direction more accurate; during fine adjustment of translation, the fixing block 610 is connected to the laser base plate 500, and the top screw 620 pushes the translation base 100 to complete the fine adjustment of the translation of the translation base 100, so that the adjustment is more accurate and fast. When the translation base 100 is adjusted into place, the first fixed connector locks the connection between the translation base 100 and the laser base plate 500. At this time, the translation base 100 is completely fixed to the laser base plate 500 and will not move.

[0091] In this embodiment, when the fixing block 610 is connected to the translation base 100, it is specifically a fixed connection, such as Figure 1 and Figure 7 As shown, the top screw 620 pushes the rotating body 230 to move, completing the fine adjustment of the rotation of the rotating body 230, making the adjustment more accurate and faster.

[0092] In this embodiment, when the fixing block 610 is connected to the rotation support part 200, specifically: the fixing block 610 is fixedly connected to the protrusion 231, such as Figure 1 As shown; the fixed block 610 is fixedly connected to the rotating stand 250, as Figure 7 The top screw 620 pushes the rotating cylinder 300 to move, completing the fine adjustment of the rotation of the rotating cylinder 300, making the adjustment more accurate and faster.

[0093] Further, considering the fixing of the rotating cylindrical member 300 and the rotating support part 200, the rotating cylindrical member 300 further includes a flange 320 and a second fixing connecting member 330, such as Figure 1 , Figure 4 and Figure 5 As shown. The flange 320 is connected to the cylindrical body 310, and the flange 320 includes a second arc-shaped connection hole 321. The second fixed connection member 330 passes through the second arc-shaped connection hole 321 and is connected to the rotation support part 200. The second arc-shaped connection hole 321 and the second fixed connection member 330 form a rotation guide assembly of the rotating cylindrical member 300, which is conducive to the control of the rotation position.

[0094] In this embodiment, the plurality of second arc-shaped connection holes 321 are evenly arranged in the circumferential direction.

[0095] In this embodiment, in order to facilitate the push screw 620 in the fine adjustment assembly 600 to push the flange 320 to drive the cylindrical body 310 to rotate around its central axis during fine adjustment, the flange 320 also includes a flat end. The flat end includes a first flat portion 322 and a second flat portion 323 that are symmetrically arranged. Figure 5 In more detail, the plane on the first plane portion 322 and the plane on the second plane portion 323 are in the same plane.

[0096] Furthermore, considering the position limiting fixation of the frequency doubling crystal 700, the multi-dimensionally adjustable frequency doubling crystal fixing structure of this embodiment includes a frequency doubling crystal mounting seat 400, such as Figure 6 The high-frequency crystal mounting seat 400 includes two side walls vertically connected to each other, one side wall is provided with a connecting through hole, and the other side wall is provided with a fastening hole.

[0097] In this embodiment, two frequency doubling crystal mounts 400 are provided. The two frequency doubling crystal mounts 400 are arranged opposite to each other to clamp the frequency doubling crystal and are arranged in the central through hole of the cylindrical body 310. The mount fixing parts fix the cylindrical body 310, the first frequency doubling crystal mount and the second frequency doubling crystal mount in sequence from the outside to the inside.

[0098] Example 2

[0099] A specific embodiment of the utility model discloses a multi-dimensional adjustable frequency doubling crystal fixing structure, which is different from the embodiment 1 in that: Figure 7 As shown, the rotation support part 200 includes a first through hole 210, a first arc-shaped connecting hole 220, a rotatably connected support member 240 and a rotating stand 250. The support member 240 is rotatably connected to the positioning shaft 120. On the translation base 100, the support member 240 rotates along the first arc-shaped connecting hole 220 with the positioning shaft 120 as the rotating axis. The first through hole 210 is set on the rotating stand 250. Fig. 9 shown.

[0100] In this embodiment, the frequency doubling crystal fixing structure has four-dimensional adjustment. The first dimension adjustment is the translation adjustment of the translation base 100, that is, the left and right position adjustment of the frequency doubling crystal 700. The second dimension adjustment is the rotation adjustment of the support member 240 on the upper surface of the translation base 100, that is, the adjustment of the angle between the light incident surface of the frequency doubling crystal 700 and the XOZ plane. The third dimension adjustment is the rotation adjustment of the cylindrical body 310 in the rotating cylindrical member 300 around the central axis of the first through hole 210 in the first through hole 210, that is, the rotation adjustment of the frequency doubling crystal 700. The fourth dimension adjustment is the rotation adjustment of the rotating stand 250 and the support member 240, that is, the pitch adjustment of the frequency doubling crystal 700.

[0101] In this embodiment, the frequency doubling efficiency of the frequency doubling crystal 700 is maximized by the combination of two-dimensional adjustment and three-dimensional adjustment. The reflected light of the frequency doubling crystal 700 does not enter the laser light path through four-dimensional adjustment. Alternatively, the frequency doubling efficiency of the frequency doubling crystal 700 is maximized by the combination of three-dimensional adjustment and four-dimensional adjustment. The reflected light of the frequency doubling crystal 700 does not enter the laser light path through two-dimensional adjustment.

[0102] Furthermore, the support member 240 includes a connection seat 241 and a support arm 242. Figure 8 As shown, two support arms 242 are disposed on the connection seat 241 and are arranged opposite to each other. The connection seat 241 also includes a positioning hole matching the positioning shaft 120 , and the first arc-shaped connection hole 220 is disposed on the outer side of the support arm 242 .

[0103] The rotating stand 250 is arranged between the support arms 242 and is rotatably connected to the two support arms 242 through a rotating stopper. The rotating stopper penetrates the support arms 242 and is screwed to the rotating stand 250. When the rotating stand 250 is rotated into place, the rotating stopper locks the connection between the support arms 242 and the rotating stand 250 through screwing. The rotating stopper has the functions of a rotating shaft and a locking, and a bolt is preferred.

[0104] Furthermore, the rotating support part 200 further includes a transfer member 260 and a rotating shaft 270 connected to the rotating stand 250. Fig.10 and Fig.11 As shown; the lower end of the adapter 260 is slidably connected to the support member 240, and reciprocates between the upper end and the lower end of the support member 240; the upper end of the adapter 260 is rotatably connected to the rotating shaft 270.

[0105] In this embodiment, the frequency doubling crystal fixing structure has a fifth-dimensional adjustment on the basis of four-dimensional adjustment. The height adjustment of the rotating stand 250 is achieved by slidingly connecting the lower end of the adapter 260 with the support 240 and the upper end of the adapter 260 providing support for the shaft 270, thereby achieving the height adjustment of the frequency doubling crystal 700.

[0106] In this embodiment, considering that the rotating stand 250 is fixed after being rotated by the rotating shaft 270, the rotating support part 200 further includes a locking plate 280. The upper end of the adapter 260 is a V-shaped groove, such as Fig.12 As shown, the rotating shaft 270 is tangent to the two inner walls of the V-shaped groove and rotates in the V-shaped groove. After rotating to the right position, the locking plate 280 is fixedly connected to the top surface of the adapter 260, as shown in FIG. Fig.11 As shown, the rotation shaft 270 is limited and fixed. At this time, the locking plate 280 presses the rotation shaft 270, thereby completing the fixation of the rotating stand 250.

[0107] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-dimensional adjustable frequency doubling crystal fixing structure, characterized in that: It comprises a translation base (100), a rotation support part (200), a rotating cylinder (300) and a frequency doubling crystal mounting seat (400) which are connected in sequence; The translation base (100) is connected to the laser base plate (500) and is capable of moving in a direction perpendicular to the optical axis; The rotating support part (200) is rotatably connected to the upper surface of the translation base (100); The rotation support part (200) comprises a first through hole (210); The rotating cylindrical member (300) comprises a cylindrical body (310); the cylindrical body (310) penetrates into the first through hole (210) and is rotatably connected to the rotating support portion (200); The frequency doubling crystal mounting seat (400) is located in the central through hole of the cylindrical body (310) and is connected to the rotating cylindrical member (300).

2. The multi-dimensional adjustable frequency doubling crystal fixing structure according to claim 1, characterized in that: The translation base (100) comprises a positioning shaft (120); The rotation support part (200) further comprises a rotation guide assembly; The rotation guide assembly comprises a first arc-shaped connecting hole (220) and a bolt member penetrating the first arc-shaped connecting hole (220); The rotation support part (200) is connected to the translation base (100) via the bolt member.

3. The multi-dimensional adjustable frequency doubling crystal fixing structure according to claim 2, characterized in that: The rotating support part (200) further includes a rotating body (230); The rotating body (230) comprises a protrusion (231) and extension ends (232) arranged on both sides of the protrusion (231); The first through hole (210) is provided on the convex block (231); The first arc-shaped connecting hole (220) is provided on the extending end (232).

4. The multi-dimensional adjustable frequency doubling crystal fixing structure according to claim 2, characterized in that: The rotating support part (200) further comprises a rotatably connected support member (240) and a rotating stand (250); The support member (240) is rotatably connected to the upper surface of the translation base (100); The support member (240) is provided with the first arc-shaped connecting hole (220); The first through hole (210) is provided on the rotating stand (250).

5. The multi-dimensional adjustable frequency doubling crystal fixing structure according to claim 4, characterized in that: The rotating support part (200) further comprises a transfer member (260) and a rotating shaft (270) connected to the rotating stand (250); The lower end of the adapter (260) is slidably connected to the support member (240); the adapter (260) reciprocates between the upper end and the lower end of the support member (240); The upper end of the adapter (260) is rotatably connected to the rotating shaft (270).

6. The multi-dimensional adjustable frequency doubling crystal fixing structure according to any one of claims 1 to 4, characterized in that: Also included is a fine-tuning assembly (600); The fine-tuning assembly (600) comprises a fixing block (610) and a top screw (620); The top screw (620) is threadedly connected to and passes through the fixing block (610).

7. The multi-dimensional adjustable frequency doubling crystal fixing structure according to claim 6, characterized in that: The fixing block (610) is connected to the laser base plate (500); and / or the fixed block (610) is connected to the translation base (100); And / or the fixing block (610) is connected to the rotation support part (200).

8. The multi-dimensional adjustable frequency doubling crystal fixing structure according to claim 1, characterized in that: The rotating cylindrical member (300) further comprises a flange (320) connected to the cylindrical body (310); The flange (320) comprises a second arc-shaped connecting hole (321); The plurality of second arc-shaped connecting holes (321) are evenly arranged in the circumferential direction.

9. The multi-dimensional adjustable frequency doubling crystal fixing structure according to claim 8, characterized in that: The flange (320) also includes a planar end.

10. The multi-dimensional adjustable frequency doubling crystal fixing structure according to claim 1, characterized in that: The translation base (100) further comprises an oblong hole (110); The long axis direction of the oblong hole (110) is the same as the moving direction of the translation base (100).

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