CN115356820A - A position adjustment device - Google Patents

Abstract

The invention belongs to the technical field of gene sequencing instruments and equipment, and discloses a position adjusting device, which is used for adjusting the rotation angles of an optical element around a first direction and a second direction and comprises a box body, a fixing module and an adjusting module; the first screw is fixedly connected with the fixed module through threads; according to the invention, the first screw and the fixed module are rotated and adjusted around the first direction together by rotating the first screw, and after the optical element on the fixed module rotates to a preset angle around the first direction, the second screw is screwed to complete the positioning of the first adjusting piece and the fixed module along the first direction; according to the invention, the first adjusting piece can drive the fixing module to rotate around the second direction by rotating the third screw. The position adjusting device is optimized in structure, production cost is reduced, the position adjusting device can adjust the optical element in two degrees of freedom, and the refraction angle of the optical element to light rays is conveniently controlled.

Description

A position adjustment device

technical field

The invention relates to the technical field of gene sequencing equipment, in particular to a position adjustment device.

Background technique

At present, the mainstream gene sequencing technology on the market is to obtain gene sequence information by detecting the fluorescence of markers. Microscopic imaging technology is needed in the detection process. Microscopic imaging technology is projected through the excitation light emitted by the lighting system through a filter and a dichroic mirror. On the biochip, the fluorescence generated by the sample of the biochip irradiated by laser passes through the objective lens, dichroic mirror, tube lens, and filter, and finally reaches the CCD for imaging. During this propagation process, the fluorescence will undergo multiple reflections and projections, and finally The diameter of the formed pixel is only tens of nanometers, which requires that each refraction angle of the optical path must be very precise, and the error is extremely small, so as to ensure that the final imaging position and shape do not change significantly. If the optical element is affected by external force, Then its surface will be deformed, resulting in subtle changes in the light spot. When the number of optical components in the optical imaging system is large, the accumulation of this light spot deformation error will eventually lead to blurring, ellipse, starburst and other phenomena in the pixels of the formed image. , so it is necessary to control the fixed force of the optical element, that is, to ensure that the fixation of the optical element does not affect the shape of the imaging pixel, and the mainstream machining technology on the market can only reach 10 microns, its machining accuracy, surface of the part Errors in handling, installation, etc. will cause the installation position of optical components to deviate from the ideal state, resulting in deflection of the light path. Therefore, the optical components used in the entire microscopic imaging system, especially the refraction part of the optical path, must be adjustable.

At present, most of the optical path adjustable devices on the market are active electromagnetic drive adjustment or piezoelectric ceramic adjustment. By detecting the tilt and deflection angle of the optical element in real time, the drive module is controlled to adjust the optical element to return to the ideal state. Although this method can be accurate Effective control, but its cost is high, the volume is large, the adaptability is small, the development cycle is long, and it is not suitable for gene sequence detection instruments with many optical components.

Therefore, there is an urgent need for a position adjustment device to optimize the structure and reduce the production cost.

Contents of the invention

An object of the present invention is to provide a position adjustment device with optimized structure and reduced production cost.

For reaching this purpose, the present invention adopts following technical scheme:

A position adjustment device for adjusting the rotation angle of an optical element around a first direction and a second direction, the position adjustment device comprising:

box;

A fixed module is arranged in the box, the optical element is fixedly arranged on the fixed module, and a first connection hole and a second connection hole are opened on the same side of the fixed module;

An adjustment module, the adjustment module includes a first adjustment member, a second adjustment member, a first screw, a second screw, a third screw and a fourth screw, the first adjustment member is arranged on the fixed module with the On one side of the first connecting hole, the first screw is screwed into the first connecting hole, the first adjusting part is provided with an arc-shaped keyway, and the second screw penetrates through the arc-shaped keyway. The keyway is screwed to the second connection hole, the second adjustment member is covered on the outer periphery of the first adjustment member and is fixedly connected with the box body, and the first adjustment member faces the second adjustment member. One side of the piece is provided with an arc-shaped prismatic groove, and the second adjustment piece is provided with a third connecting hole, and the third screw is inserted into the circular-arc-shaped prismatic groove after passing through the third connecting hole. Among them, the side wall of the first adjustment member is provided with a fourth connection hole, the side wall of the second adjustment member is provided with a fifth connection hole, and the fourth screw is inserted into the fifth connection hole after passing through the fifth connection hole. In the fourth connecting hole, the central axis of the first screw is perpendicular to the central axis of the fourth screw, the first direction is the direction of the central axis of the first screw, and the second direction is the direction of the central axis of the first screw. The direction of the central axis of the fourth screw.

As an optional technical solution, the adjustment module further includes a first spring, one end of the first spring abuts against the first adjustment member, and the other end of the first spring abuts against the first A screw, when the first screw is screwed into the first connection hole, the first spring is compressed.

As an optional technical solution, the side wall of the fixing module is provided with a central cylinder, the first connection hole is opened on the central cylinder, and the central cylinder extends through the first adjusting member. Through holes, the first spring is a straight spring, and the first spring is sheathed on the outer periphery of the central cylinder.

As an optional technical solution, the adjustment module further includes a second spring, one end of the second spring abuts against the first adjustment member, and the other end of the second spring abuts against the first Two adjustment parts.

As an optional technical solution, there are two arc-shaped prismatic grooves, and the two circular-arc-shaped prismatic grooves are symmetrically arranged on both sides of the central axis of the first screw, each The arc-shaped prismatic groove is provided corresponding to one of the third connection holes and one of the third screws.

As an optional technical solution, there are two fourth screws, and the two fourth screws are symmetrically arranged on both sides of the central axis of the first screw, and each fourth screw is connected to one The fourth connecting hole and one fifth connecting hole are arranged correspondingly, and the central axis of the fourth screw is perpendicular to the connecting line between the centers of the two third connecting holes.

As an optional technical solution, a second through hole is opened in the middle of the second adjusting member, and the area where the second through hole is located covers the first screw and the second screw.

As an optional technical solution, the fixing module includes a mounting part and a fixing part, the mounting part is provided with a receiving groove, the optical element is installed in the receiving groove, and the fixing part is fixedly installed in the One side of the receiving groove is opened on the mounting part, and the fixing part is used to limit the optical element in the receiving groove.

As an optional technical solution, the fixing module further includes a shock absorber, and the fixing member defines a limiting groove corresponding to the position of the receiving groove, and the vibration absorbing member is installed in the limiting groove, so that The shock absorber is used to abut against the optical element.

As an optional technical solution, a positioning groove is provided on the side of the fixing part facing the mounting part, the extending direction of the positioning groove is perpendicular to the central axis of the first screw, and the positioning part of the mounting part is suitable for The fitting is snapped into the positioning slot.

The beneficial effects of the present invention are:

The present invention provides a position adjustment device, which is used to adjust the rotation angle of the optical element around a first direction and a second direction, the first direction is the direction of the central axis of the first screw, and the second direction is the direction of the central axis of the fourth screw; Before adjusting the direction, tighten the first screw so that the first screw is fixedly connected with the fixed module by threads; when it is necessary to adjust the rotation angle of the optical element around the first direction, turn the first screw so that the first screw and the fixed module co-circle Rotate in the first direction, when the optical element on the fixed module rotates around the first direction to a preset angle, tighten the second screw, and the second screw connects the first adjusting part to the fixing module, thus completing the first adjusting part and the fixing The positioning of the module along the first direction; when it is necessary to adjust the rotation angle of the optical element around the second direction, turn the third screw, since the fourth screw passes through the second adjustment part from the side and inserts into the first adjustment part, therefore, the third When the screw pushes against the first adjustment part from the top surface, the first adjustment part can drive the fixed module to rotate around the second direction, and when the optical element on the fixed module rotates around the second direction to a preset angle, stop turning the third screw . The structure of the position adjusting device of the present invention is optimized to reduce the production cost, and the position adjusting device can adjust two degrees of freedom for the optical element, so as to facilitate the control of the refraction angle of the optical element to the light.

Description of drawings

Below according to accompanying drawing and embodiment the present invention is described in further detail;

Fig. 1 is the front view of the position adjusting device described in the embodiment;

Fig. 2 is the sectional view of A-A cross section in Fig. 1;

Fig. 3 is the sectional view of B-B cross section among Fig. 1;

Fig. 4 is a schematic structural view of the position adjustment device described in the embodiment;

Fig. 5 is a schematic structural view of the first adjusting member described in the embodiment;

Fig. 6 is a schematic structural view of the second adjusting member described in the embodiment;

Fig. 7 is a schematic structural diagram of the fixed module described in the embodiment;

Fig. 8 is a schematic structural diagram of the mounting part described in the embodiment.

In the picture:

100. Optical components;

1. Box body;

2. Fixed module; 21. Mounting piece; 211. First connecting hole; 212. Second connecting hole; 213. Central cylinder; 214. Receiving groove; 215. Positioning part; 216. First limiting side wall; The second limiting side wall; 218, the installation body; 22, the fixing piece; 221, the limiting groove; 222, the fixing wall; 23, the shock absorbing piece;

3. Adjustment module; 31. First adjustment member; 311. Arc-shaped keyway; 312. Arc-shaped prismatic groove; 313. Fourth connecting hole; 314. First through hole; 32. Second adjustment member; 321 , the third connecting hole; 322, the fifth connecting hole; 323, the second through hole; 33, the first screw; 34, the second screw; 35, the third screw; 36, the fourth screw; 37, the first spring; 38, the second spring; 39, the fifth screw.

Detailed ways

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description herein, it should be understood that the terms "upper", "lower", "left", "right", and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplifies operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

In the description of this specification, a description referring to the terms "an embodiment", "an example" and the like means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention middle. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

As shown in Figures 1 to 8, this embodiment provides a position adjustment device for adjusting the rotation angle of the optical element 100 around the first direction and the second direction, the position adjustment device includes a box body 1, a fixing module 2 and an adjustment Module 3; the fixed module 2 is arranged in the box body 1, the optical element 100 is fixedly arranged on the fixed module 2, and the same side of the fixed module 2 is provided with a first connection hole 211 and a second connection hole 212; the adjustment module 3 includes a first The adjusting member 31, the second adjusting member 32, the first screw 33, the second screw 34, the third screw 35 and the fourth screw 36, the first adjusting member 31 is arranged on the side of the fixing module 2 provided with the first connecting hole 211 , the first screw 33 is screwed into the first connecting hole 211, the first adjusting member 31 is provided with an arc-shaped keyway 311, and the second screw 34 penetrates through the arc-shaped keyway 311 and is threadedly connected with the second connecting hole 212, The second adjustment member 32 is covered on the outer periphery of the first adjustment member 31 and is fixedly connected with the box body 1. The first adjustment member 31 is provided with an arc-shaped prismatic groove 312 on the side facing the second adjustment member 32 . The member 32 is provided with a third connection hole 321, the third screw 35 penetrates through the third connection hole 321 and then inserted into the arc-shaped prismatic groove 312, the side wall of the first adjustment member 31 is provided with a fourth connection hole 313, the second The side wall of the second adjustment member 32 is provided with a fifth connecting hole 322, and the fourth screw 36 is inserted into the fourth connecting hole 313 after passing through the fifth connecting hole 322. The central axis of the first screw 33 is perpendicular to the center of the fourth screw 36. axis, the first direction is the direction of the central axis of the first screw 33 , and the second direction is the direction of the central axis of the fourth screw 36 .

Specifically, in this embodiment, the first direction is the direction of the central axis of the first screw 33, and the second direction is the direction of the central axis of the fourth screw 36; before adjusting the direction, tighten the first screw 33 so that the first The screw 33 is screwed and fixedly connected with the fixed module 2; when it is necessary to adjust the rotation angle of the optical element 100 around the first direction, the first screw 33 is rotated so that the first screw 33 and the fixed module 2 rotate around the first direction together, when the fixed module After the optical element 100 on 2 is rotated around the first direction to a preset angle, the second screw 34 is tightened, and the second screw 34 connects the first adjustment part 31 to the fixed module 2, thereby completing the connection between the first adjustment part 31 and the fixed module. 2 Positioning along the first direction; when it is necessary to adjust the rotation angle of the optical element 100 around the second direction, turn the third screw 35, because the fourth screw 36 passes through the second adjustment member 32 from the side and is inserted into the first adjustment member 31 Therefore, when the third screw 35 pushes against the first adjustment member 31 from the top surface, the first adjustment member 31 can drive the fixed module 2 to rotate around the second direction, and when the optical element 100 on the fixed module 2 rotates around the second direction After reaching the preset angle, stop turning the third screw 35 . The structure of the position adjustment device in this embodiment is optimized to reduce the production cost, and the position adjustment device can adjust the optical element 100 in two degrees of freedom, so as to facilitate the control of the refraction angle of the light by the optical element 100 .

In this embodiment, the big head of the fourth screw 36 is set as an external thread, the small head of the fourth screw 36 is not provided with an external thread, and the big head of the fourth screw 35 is threadedly connected with the second adjustment member 32, that is, the fifth connecting hole 322 is a threaded hole, the small head of the fourth screw 35 is inserted into the fourth connecting hole 313 of the first adjustment member 31 , the fourth connection hole 313 is a smooth hole, so the first adjustment member 31 can rotate relative to the fourth screw 35 .

In this embodiment, the size of the arc-shaped keyway 311 can be set according to actual needs. When the optical element 100 needs to rotate a large angle around the first direction, setting a larger arc-shaped keyway 311 can improve the optical element. 100 to rotate around the limit value of the first direction; and since the first adjusting member 31 is provided with an arc-shaped prismatic groove 312, when the third screw 35 abuts against the bottom of the arc-shaped prismatic groove 312, it will not The rotation of the first adjusting member 31 and the fixing module 2 around the first direction is restricted.

Optionally, the adjustment module 3 further includes a first spring 37, one end of the first spring 37 abuts against the first adjustment member 31, the other end of the first spring 37 abuts against the first screw 33, and the first screw 33 is screwed into When the first connection hole 211 is opened, the first spring 37 is compressed. When the first screw 33 is tightened, the first spring 37 is compressed, and the first spring 37 forces the first adjustment member 31 to closely fit with the fixed module 2, so that the second screw 34 can be quickly aligned with the second connection hole 212 and screwed in. in the second connection hole 212 .

Optionally, the side wall of the fixed module 2 is provided with a central cylinder 213, the first connection hole 211 is opened on the central cylinder 213, the central cylinder 213 extends through the first through hole 314 of the first adjustment member 31, and the first spring 37 is The straight spring, the first spring 37 is sheathed on the outer periphery of the central cylinder 213 , can ensure the compression stability of the first spring 37 and prevent the first spring 37 from detaching from the first screw 33 and the first adjusting member 31 .

Optionally, the adjustment module 3 further includes a second spring 38 , one end of the second spring 38 abuts against the first adjustment member 31 , and the other end of the second spring 38 abuts against the second adjustment member 32 . After the second adjusting member 32 is fixedly installed on the box body 1 by the fifth screw 39, the second spring 38 is compressed, and the second spring 38 forces the first adjusting member 31 to closely fit the fixed module 2. After the third screw 35 is rotated, The second spring 38 can force the first adjusting member 31 and the fixed module 2 to maintain the angle after turning around the second direction, so as to ensure no deflection in a vibration environment.

Optionally, there are two arc-shaped prismatic grooves 312, and the two arc-shaped prismatic grooves 312 are symmetrically arranged on both sides of the central axis of the first screw 33, and each arc-shaped prismatic groove 312 is connected to A third connection hole 321 and a third screw 35 are correspondingly provided. There are two third connecting holes 321 and arc-shaped prismatic grooves 312, and two third screws 35 are correspondingly arranged. Screw 35, so that the third screw 35 moves towards the direction close to the first adjustment member 31, that is, the third screw 35 pushes the first adjustment member 31, and then reversely turns another third screw 35, so that the third screw 35 Moving away from the first regulating member 31 means that the third screw 35 limits the rotation of the first regulating member 31 . In this embodiment, two coaxially arranged fourth screws 36 serve as the fulcrum of the first adjusting member 31, and the two third screws 35 use the principle of leverage to adjust the first adjusting member 31, so that the first adjusting member 31 can Rotate to a preset angle around the second direction.

Optionally, there are two fourth screws 36, and the two fourth screws 36 are symmetrically arranged on both sides of the central axis of the first screw 33, and each fourth screw 36 is connected to a fourth connecting hole 313 and a fifth connecting hole 313. The connecting holes 322 are provided correspondingly, and the central axis of the fourth screw 36 is perpendicular to the connecting line between the centers of the two third connecting holes 321 .

Optionally, a second through hole 323 is opened in the middle of the second adjusting member 32 , and the area where the second through hole 323 is located covers the first screw 33 and the second screw 34 . The operator can operate the first screw 33 and the second screw 34 by passing through the second through hole 323 with a tool.

Optionally, the fixing module 2 includes a mounting part 21 and a fixing part 22, the mounting part 21 is provided with a receiving groove 214, the optical element 100 is installed in the receiving groove 214, and the fixing part 22 is fixedly mounted on the mounting part 21 and a receiving groove 214 is opened On one side, the fixing member 22 is used to limit the optical element 100 in the receiving groove 214 . The optical element 100 is defined in the receiving groove 214 , and the mounting part 21 and the fixing part 22 isolate and protect the optical element 100 .

Optionally, the fixing module 2 also includes a shock absorber 23. The position of the fixer 22 corresponding to the receiving groove 214 is provided with a limiting groove 221. The shock absorbing member 23 is installed in the limiting groove 221. The shock absorbing member 23 is used to abut against the The optical element 100 ensures that the rigid impact on the optical element 100 can be reduced in a vibration environment.

In this embodiment, the shock absorber 23 is made of porous soft material to improve the cushioning capacity of the shock absorber 23 .

Optionally, the fixing part 22 is provided with a positioning groove on the side facing the mounting part 21, the extending direction of the positioning groove is perpendicular to the central axis of the first screw 33, and the positioning part 215 of the mounting part 21 is adapted to snap into the positioning groove, In order to ensure that the mounting part 21 and the fixing part 22 can be quickly matched and fixed, and avoid the loosening of the mounting part 21 and the fixing part 22 caused by vibration.

In this embodiment, the first connecting hole 211 , the second connecting hole 212 and the central cylinder 213 are all disposed on the first limiting sidewall 216 of the mounting member 21 .

Optionally, the mounting part 21 further includes a mounting body 218 and a second limiting side wall 217, the second limiting side wall 217 is arranged opposite to the first limiting side wall 216, and the mounting body 218 is located on the first limiting side wall 216 Between the second limiting side wall 217 , the receiving groove 214 is opened on the installation body 218 , and the non-accommodating area on the installation body 218 is provided with a sixth connection hole perpendicular to the first direction. The positioning portion 215 is a portion of the second limiting sidewall 217 that is inserted into the positioning slot.

When the fixing part 22 is attached to the surface of the installation body 218, the first limiting side wall 216 abuts against one end of the fixing part 22, and the positioning part 215 of the second limiting side wall 217 is inserted into the positioning groove of the fixing part 22, thereby The fixing part 22 can be attached to the mounting part 21 quickly, and a screw is used to pass through the fixing part 22 and be threaded and fastened to the sixth connection hole.

Optionally, one side of the positioning slot is provided with a fixed wall 222, the fixed wall 222 is provided with a seventh connection hole parallel to the first direction, and the second limiting side wall 217 is provided with an eighth connection hole parallel to the first direction. As for the connection holes, screws are used to pass through the seventh connection hole and the eighth connection hole, so that the fixing part 22 and the mounting part 21 are fixedly connected.

In this embodiment, screws are used to fix and connect the mounting part 21 and the fixing part 22 in two directions perpendicular to each other, so as to improve the positioning accuracy of the optical element 100 .

In addition, the above are only preferred embodiments and technical principles used in the present invention. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (10)

1. A position adjusting device, for adjusting the rotation angle of the optical element (100) around the first direction and the second direction, characterized in that, the position adjusting device comprises: box (1); The fixed module (2) is arranged in the box (1), the optical element (100) is fixedly arranged on the fixed module (2), and the same side of the fixed module (2) is provided with a first A connection hole (211) and a second connection hole (212); An adjustment module (3), the adjustment module (3) comprising a first adjustment member (31), a second adjustment member (32), a first screw (33), a second screw (34), and a third screw (35) And the fourth screw (36), the first adjusting member (31) is arranged on the side where the first connecting hole (211) is opened in the fixed module (2), and the first screw (33) is threaded Connected to the first connecting hole (211), the first adjusting member (31) is provided with an arc-shaped keyway (311), and the second screw (34) penetrates through the arc-shaped keyway ( 311) and threadedly connected with the second connecting hole (212), the second adjusting member (32) is covered on the outer periphery of the first adjusting member (31) and fixedly connected with the box body (1) , the side of the first adjusting piece (31) facing the second adjusting piece (32) is provided with an arc-shaped prismatic groove (312), and the second adjusting piece (32) is provided with a third connection hole (321), the third screw (35) penetrates through the third connecting hole (321) and then inserts into the arc-shaped prismatic groove (312), and the side of the first adjustment member (31) A fourth connecting hole (313) is opened on the wall, a fifth connecting hole (322) is opened on the side wall of the second adjusting member (32), and the fourth screw (36) penetrates through the fifth connecting hole ( 322) and then inserted into the fourth connection hole (313), the central axis of the first screw (33) is perpendicular to the central axis of the fourth screw (36), and the first direction is the first The direction of the central axis of the screw (33), the second direction is the direction of the central axis of the fourth screw (36). 2. The position adjustment device according to claim 1, characterized in that, the adjustment module (3) further comprises a first spring (37), and one end of the first spring (37) abuts against the first spring (37). An adjustment member (31), the other end of the first spring (37) abuts against the first screw (33), when the first screw (33) is screwed into the first connecting hole (211), The first spring (37) is compressed. 3. The position adjustment device according to claim 2, characterized in that, the side wall of the fixed module (2) is provided with a central cylinder (213), and the first connection hole (211) is opened in the central cylinder (213), the central column (213) extends through the first through hole (314) of the first adjusting member (31), the first spring (37) is a straight spring, and the first spring ( 37) Sleeve on the outer periphery of the central cylinder (213). 4. The position adjusting device according to claim 1, characterized in that, the adjusting module (3) further comprises a second spring (38), one end of the second spring (38) abuts against the first The adjustment member (31), the other end of the second spring (38) abuts against the second adjustment member (32). 5. The position adjusting device according to claim 4, characterized in that, two arc-shaped prismatic grooves (312) are provided, and the two circular-arc-shaped prismatic grooves (312) are symmetrically arranged on On both sides of the central axis of the first screw (33), each of the arc-shaped prismatic grooves (312) corresponds to one of the third connecting holes (321) and one of the third screws (35) set up. 6. The position adjusting device according to claim 5, characterized in that, the fourth screw (36) is set to two, and the two fourth screws (36) are symmetrically arranged on the first screw (33) ) on both sides of the central axis, each of the fourth screws (36) is set corresponding to one of the fourth connection holes (313) and one of the fifth connection holes (322), and the fourth screws (36 ) is perpendicular to the connecting line of the centers of the two third connecting holes (321). 7. The position adjusting device according to claim 1, characterized in that, a second through hole (323) is opened in the middle of the second adjusting member (32), and the area where the second through hole (323) is located covers on the first screw (33) and the second screw (34). 8. The position adjusting device according to claim 1, characterized in that, the fixing module (2) comprises a mounting part (21) and a fixing part (22), and the mounting part (21) is provided with a receiving groove ( 214), the optical element (100) is installed in the accommodation groove (214), and the fixing member (22) is fixedly installed on the side of the installation member (21) where the accommodation groove (214) is opened , the fixing member (22) is used to limit the optical element (100) in the receiving groove (214). 9. The position adjusting device according to claim 8, characterized in that, the fixing module (2) further comprises a shock absorber (23), and the fixing member (22) corresponds to the position of the receiving groove (214) A limiting groove (221) is opened, the vibration damping element (23) is installed in the limiting groove (221), and the vibration damping element (23) is used to abut against the optical element (100). 10. The position adjusting device according to claim 8, characterized in that, the side of the fixing part (22) facing the mounting part (21) is provided with a positioning groove, and the extending direction of the positioning groove is perpendicular to the first The central axis of a screw (33), the positioning part (215) of the mounting part (21) is adapted to snap into the positioning groove.

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