Multi-dimensional adjusting device for clamping lens

Abstract

The utility model provides a multi-dimensional adjusting device for clamping a lens. The multi-dimensional adjusting device comprises a mounting seat, a plurality of adjusting units and a plurality of fixing units, the mounting seat comprises a plurality of fixing surfaces, each fixing surface is provided with a mounting area, and a positioning hole is formed in each mounting area; the adjusting units are installed in the installation areas in a one-to-one correspondence mode, installation holes are formed in the adjusting units, and the adjusting units and the installation bases are connected through multiple sets of non-collinear adjusting bolts; the fixing units are installed on the sides, away from the fixing face, of the adjusting units in a one-to-one correspondence mode through the installing holes. The ends, away from the adjusting units, of the fixing units are provided with positioning grooves. Wherein the positioning hole, the mounting hole and the fixing unit are correspondingly arranged to form a light transmission path. According to the utility model, the working distance of the lens along the optical axis direction can be adjusted, and the multi-dimensional angle of the lens can be adjusted; moreover, the lens does not need to be repeatedly disassembled in the repeated use process, and the problem that the detection repetition rate is low due to the fact that the pressure is difficult to control in the repeated disassembly process is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical equipment and relates to a multi-dimensional adjustment device for clamping a lens. Background Art

[0002] In the field of optical precision displacement measurement, some core components are usually complex in structure and involve multiple assemblies of multiple parts and components. As a result, the stacking tolerances of the parts and components are getting larger and larger, making the adjustable fixing devices of precision lenses increasingly attracting the attention of industry insiders.

[0003] In the field of optical precision displacement measurement, the optical lens needs to remain stable to ensure the accuracy and efficiency of the detection. Therefore, the lens is usually fixed by a clamping structure. However, when the clamping structure is used to fix or adjust the position of the precision lens, due to structural limitations, it is impossible to compensate for the tolerance caused by the superposition of multiple parts and components. The working distance of the precision lens can only be roughly adjusted along the optical axis in limited cases, which cannot meet the angle adjustment requirements of the precision lens. In addition, the clamping structure needs to first loosen the fixation of the lens in the process of clamping the precision lens, then adjust the position of the lens, and then clamp the lens through the clamping structure to fix it. The fixing method of the clamping structure is usually a clamping structure or a clamping screw to tighten the lens from the side to complete the fixation of the lens. However, whether the clamping method or the clamping screw fixing method is used, the pressure applied during each operation is difficult to control. Excessive pressure is easy to damage the lens, and too little pressure is easy to cause the lens to loosen, causing the lens to slip and fall. In addition, the difficulty in controlling the pressure will also cause different stresses due to the clamping force, thereby reducing the repetition rate of the experiment.

[0004] Therefore, how to provide a multi-dimensional adjustment device for clamping a lens to achieve multi-dimensional angle adjustment and improve repeatability without repeatedly disassembling the lens has become a technical problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a multi-dimensional adjustment device for clamping a lens, which is used to solve the problems that the lens fixing device in the prior art cannot meet the angle adjustment requirements of the lens and has a low detection repetition rate.

[0006] In order to achieve the above-mentioned and other related purposes, the utility model provides a multi-dimensional adjustment device for clamping a lens, comprising:

[0007] A mounting seat, the mounting seat comprising a plurality of fixing surfaces, each of the fixing surfaces being provided with a mounting area, and each of the mounting areas being provided with a positioning hole;

[0008] Multiple adjustment units, and multiple said adjustment units are detachably installed in the installation area one by one. Each adjustment unit is provided with an installation hole, and the adjustment unit and the mounting base are connected by multiple groups of adjustment bolts that are not collinear;

[0009] Multiple fixing units, and multiple said fixing units are detachably installed on one side of the adjustment unit away from the fixing surface through the mounting base one by one. One end of the fixing unit away from the adjustment unit is provided with a positioning groove for positioning the lens;

[0010] Wherein, the positioning holes, the installation holes and the fixing units are correspondingly arranged to form a light passing path.

[0011] Optionally, the mounting base includes a first fixing surface, a second fixing surface and a third fixing surface. The first fixing surface, the second fixing surface and the third fixing surface are perpendicular to each other in pairs and intersect at a point. One said installation area is provided on the first fixing surface, two said installation areas are provided on the second fixing surface, and three said installation areas are provided on the third fixing surface.

[0012] Optionally, the adjustment unit includes an adjustment plate and an elastic member. One end of the elastic member contacts the adjustment plate, and the other end of the elastic member contacts the fixing surface. Wherein, the fixing unit is fixed on one side of the adjustment plate away from the fixing surface.

[0013] Optionally, the installation hole is located at a preset position of the adjustment plate. A first threaded hole is provided on the periphery of the positioning hole, and a through hole is provided on the periphery of the installation hole. The axes of the installation hole and the through hole are parallel to each other. The positions of the first threaded hole and the through hole correspond to each other. Wherein, the elastic member is located between the through hole and the first threaded hole, and the adjustment bolt passes through the through hole and the elastic member and extends into the first threaded hole.

[0014] Optionally, a second threaded hole is provided in the adjustment plate. The axis of the second threaded hole is perpendicular to the axis of the through hole, and the second threaded hole is communicated with the through hole. A first set screw is provided in the second threaded hole.

[0015] Optionally, a third threaded hole is provided in the adjustment plate. The axis of the third threaded hole is perpendicular to the axis of the installation hole, and the third threaded hole is communicated with the installation hole. A second set screw is provided in the third threaded hole.

[0016] Optionally, the elastic member is a spring.

[0017] Optionally, three first threaded holes are provided on the periphery of each positioning hole, and the connection lines of the three first threaded holes form an isosceles right triangle.

[0018] Optionally, one end of the fixing unit facing the adjusting unit is provided with a thread, and the thread is adapted to the size of the mounting hole.

[0019] Optionally, a fourth threaded hole is provided on the side surface of the fixing unit, and a fixing bolt extends into the fourth threaded hole for fixedly mounting the lens on the fixing unit.

[0020] As described above, in the multi-dimensional adjusting device for clamping a lens of the present utility model, while satisfying the adjustable working distance of the lens along the optical axis direction, the multi-dimensional angle adjustment of the lens is realized; moreover, during multiple uses, it is not necessary to repeatedly disassemble the lens, avoiding the problem of low detection repetition rate caused by difficult pressure control during repeated disassembly. Description of the Drawings

[0021] Figure 1 Shown is an exploded view of the multi-dimensional adjusting device for clamping a lens in an embodiment of the present utility model.

[0022] Figure 2 Shown is a perspective view of the mounting base in an embodiment of the present utility model.

[0023] Figure 3 Shown is a perspective view of the adjusting unit in an embodiment of the present utility model.

[0024] Figure 4 Shown is a longitudinal sectional view of the adjusting unit in an embodiment of the present utility model.

[0025] Figure 5 Shown is a transverse sectional view of the adjusting unit in an embodiment of the present utility model.

[0026] Figure 6 Shown is a perspective view of the fixing unit in an embodiment of the present utility model.

[0027] Figure 7 Shown is a schematic diagram of the fixing unit mounted on the adjusting unit in an embodiment of the present utility model.

[0028] Description of Reference Numerals

[0029] 1 Mounting base

[0030] 100 Positioning hole

[0031] 101 First fixing surface

[0032] 102 Second fixing surface

[0033] 103 Third fixing surface

[0034] 104 First threaded hole

[0035] 2 Adjusting unit

[0036] 200 mounting holes

[0037] 201 adjusting plate

[0038] 202 elastic member

[0039] 203 through hole

[0040] 204 second threaded hole

[0041] 205 third threaded hole

[0042] 3 fixing unit

[0043] 300 thread

[0044] 301 positioning groove

[0045] 302 fourth threaded hole

[0046] 4 lens

[0047] 5 object to be measured Detailed implementation manners

[0048] The following uses specific specific examples to illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model.

[0049] Please refer to Figures 1 to 7 . It should be noted that the drawings provided in this embodiment only illustrate the basic concept of the present utility model in a schematic manner. Therefore, only the components related to the present utility model are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0050] This embodiment provides a multi-dimensional adjustment device for clamping a lens. Please refer to Figures 1 to 3, the multi-dimensional adjustment device for clamping the lens includes a mounting base 1, a plurality of adjustment units 2, and a plurality of fixing units 3; the mounting base 1 includes a plurality of fixing surfaces, each fixing surface is provided with a mounting area, and each mounting area is provided with a positioning hole 100; the plurality of adjustment units 2 are detachably mounted in the mounting areas one by one, the adjustment unit 2 is provided with a mounting hole 200, and the adjustment unit 2 and the mounting base 1 are connected by a plurality of groups of non-collinear adjustment bolts (not shown); the plurality of fixing units 3 are detachably mounted in the mounting holes 200 one by one on the side of the adjustment unit 2 away from the fixing surface, and a positioning groove 301 is provided at one end of the fixing unit 3 away from the adjustment unit 2, and the positioning groove 301 is used to provide positioning for the lens 4; wherein, the positioning hole 100, the mounting hole 200, and the fixing unit 3 are correspondingly arranged to form a light passing path.

[0051] As an example, the object to be measured 5 is located on the side of the fixing surface away from the adjustment unit 2, and the lens 4 measures the object to be measured 5 through the fixing unit 3, the mounting hole 200, and the positioning hole 100.

[0052] As an example, the mounting base 1 includes a first fixing surface 101, a second fixing surface 102, and a third fixing surface 103. The first fixing surface 101, the second fixing surface 102, and the third fixing surface 103 are perpendicular to each other in pairs and intersect at a point. The first fixing surface 101 is provided with one mounting area, the second fixing surface 102 is provided with two mounting areas, and the third fixing surface 103 is provided with three mounting areas. That is, the multi-dimensional adjustment device for clamping the lens in this embodiment can clamp and fix six lenses 4, and the six lenses 4 are independent of each other.

[0053] As an example, the adjustment unit 2 includes an adjustment plate 201 and an elastic member 202. One end of the elastic member 202 contacts the adjustment plate 201, and the other end of the elastic member 202 contacts the fixing surface. The fixing unit 3 is fixed on the side of the adjustment plate 202 away from the fixing surface; and, the mounting hole 200 is located in the adjustment plate 201. A plurality of first threaded holes 104 are provided on the periphery of the positioning hole 100, and a plurality of through holes 203 are provided on the periphery of the mounting hole 200. The axes of the mounting hole 200 and the through holes 203 are parallel to each other, and the positions of the first threaded holes 104 and the through holes 203 correspond to each other. Among them, the elastic member 202 is located between the through holes 203 and the first threaded holes 104, and the adjustment screw penetrates through the through holes 203 and the elastic member 202 and extends into the first threaded holes 104; in this embodiment, the elastic member 202 is a spring.

[0054] As an example, by changing the depth of multiple adjusting screws extending into the first threaded hole 104 and coordinating with the elastic deformation of the elastic member 202, the distance and angle between the adjusting plate 201 and the mounting base 1 can be adjusted, so as to indirectly adjust the distance and angle between the lens 4 and the object to be measured 5, thereby obtaining the required relative position between the lens 4 and the object to be measured 5. During the process of adjusting the adjusting plate 201, the elastic member 202 is compressed to generate an elastic force between the adjusting plate 201 and the mounting base 1, thereby forming a pre-tightening effect; and after the adjustment is completed, the elastic force still exists, which can effectively prevent the adjusting bolts from loosening.

[0055] As an example, three first threaded holes 104 are provided around each positioning hole 100, and the connection lines of the three first threaded holes 104 form an isosceles right triangle, that is, each adjusting unit 2 is connected to the mounting base 1 through three adjusting bolts, so as to facilitate the adjustment of the distance and angle between the adjusting plate 201 and the mounting base 1. The arrangement of the isosceles right triangle can adjust the adjusting bolts at the acute angle positions of the triangle separately to realize the rotation of the adjusting plate 201 in the R X or R Y direction, and the adjustment operation is more simple and convenient.

[0056] As an example, please refer to Figure 4 , the through hole 203 adopts a countersunk through hole, which can make the head of the adjusting bolt fall into the through hole 203; and, a groove is provided on one side of the adjusting plate 201 facing the mounting base 1, and the groove communicates with the through hole 203, and one end of the elastic member 202 facing the adjusting plate 201 falls into the groove for positioning the elastic member 202.

[0057] As an example, the first threaded hole 104 adopts a countersunk threaded hole, and one end of the elastic member 202 facing the mounting base 1 falls into the first threaded hole 104, and the mounting base 1 and the adjusting plate 201 are positioned relative to each other through the elastic member 202.

[0058] As an example, please refer to Figure 5 , a second threaded hole 204 is provided in the adjusting plate 201, the axis of the second threaded hole 204 is perpendicular to the axis of the through hole 203, and the second threaded hole 204 communicates with the through hole 203. A first set screw is provided in the second threaded hole 204. After the beam exit angle of the lens 4 is adjusted, the first set screw in the second threaded hole 204 abuts against the adjusting bolt passing through the through hole 203, playing a role in locking the position of the adjusting plate 201.

[0059] As an example, a third threaded hole 205 is further provided in the adjusting plate 201, the axis of the third threaded hole 205 is perpendicular to the axis of the mounting hole 200, and the third threaded hole 205 communicates with the mounting hole 200. A second set screw is provided in the third threaded hole 205.

[0060] As an example, please refer toFigure 6 and Figure 7 One end of the fixing unit 3 facing the adjusting unit 2 is provided with a thread 300. Among them, the mounting hole 200 is a threaded hole, and the size of the thread 300 matches that of the mounting hole 200. The lens 4 is installed at one end of the fixing unit 3 away from the adjusting unit 2. The positioning groove 301 is used to provide positioning for the lens 4 to ensure the repeatability of the lens 4 installation during multiple installations. A fourth threaded hole 302 is provided on the side of the fixing unit 3. A fixing bolt (not shown) extends into the fourth threaded hole 302 to tightly press the lens 4 from the side, so as to achieve the purpose of installing and fixing the lens 4 on the fixing unit 3. This fixing method is convenient for disassembling the lens 4 and adjusting the working distance. Moreover, after the fixing screw tightly presses the lens 4, a three-point fixing structure will be formed among the fixing screw, the positioning groove 301 and the lens 4, further fastening the lens 4 to prevent the lens 4 from rotating.

[0061] As an example, the size of the thread 300 of the fixing unit 3 matches that of the mounting hole 200 of the adjusting unit 2, which is used to make up for the problem that the stress cannot be controlled due to multiple disassembly and assembly of the lens in the traditional clamping technology, thus affecting the test repeatability rate in the case of multiple tests. When the thread 300 extends into the mounting hole 200 to a preset depth, the second set screw in the third threaded hole 205 abuts against the thread 300 in the mounting hole 200, playing a role in locking the fixing unit 3.

[0062] Specifically, in this embodiment, one lens 4 installed on the first fixing surface 101 is used to realize single-degree-of-freedom measurement in the X direction; two lenses 4 installed on the second fixing surface 102 are used to realize two-degree-of-freedom measurement in the Y direction and R Z Two-degree-of-freedom measurement; three lenses 4 installed on the third fixing surface 103 are used to realize three-degree-of-freedom measurement in the Z direction and R X and R Y Three-degree-of-freedom measurement. When the attitude of the measured object 5 changes, through six independent lenses 4, six groups of displacement change data of the measured object 5 can be measured, and six-axis degree-of-freedom measurement of the measured object 5 can be realized.

[0063] As an example, six lenses 4 are clamped and fixed by six groups of adjusting units 2 and fixing units 3, and each adjusting unit 2 is decoupled from each other to meet the purpose of independent adjustment of the six lenses 4.

[0064] It should be noted that in this embodiment, six-axis degree-of-freedom measurement of the measured object 5 is performed, and six groups of adjusting units 2 and fixing units 3 are set to be able to install six lenses 4. In other examples, more or less than six groups of adjusting units 2 and fixing units 3 can also be set according to requirements, and this embodiment is not restrictive.

[0065] In summary, in the multi-dimensional adjustment device for clamping a lens of the present utility model, while satisfying the adjustable working distance of the lens along the optical axis direction, the multi-dimensional angle adjustment of the lens is achieved; moreover, during multiple uses, there is no need to repeatedly disassemble the lens, avoiding the problem of low detection repetition rate caused by difficult pressure control during repeated disassembly. Therefore, the present utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0066] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not intended to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A multi-dimensional adjustment device for clamping a lens, characterized in that: include: A mounting seat (1), the mounting seat (1) comprising a plurality of fixing surfaces, each of the fixing surfaces being provided with a mounting area, and each of the mounting areas being provided with a positioning hole (100); A plurality of adjustment units (2), wherein the plurality of adjustment units (2) are detachably mounted in the mounting area in a one-to-one correspondence, the adjustment units (2) are provided with mounting holes (200), and the adjustment units (2) and the mounting seat (1) are connected via a plurality of groups of non-collinear adjustment bolts; A plurality of fixing units (3), wherein the plurality of fixing units (3) are detachably mounted on a side of the adjusting unit (2) away from the fixing surface in a one-to-one correspondence through the mounting holes (200), and a positioning groove (301) is provided at one end of the fixing unit (3) away from the adjusting unit (2), and the positioning groove (301) is used to provide positioning for the lens (4); Wherein, the positioning hole (100), the mounting hole (200) and the fixing unit (3) are arranged correspondingly to form a light-through path.

2. The multi-dimensional adjustment device for clamping a lens according to claim 1, characterized in that: The mounting seat (1) comprises a first fixing surface (101), a second fixing surface (102) and a third fixing surface (103); the first fixing surface (101), the second fixing surface (102) and the third fixing surface (103) are perpendicular to each other and intersect at one point; the first fixing surface (101) is provided with one mounting area, the second fixing surface (102) is provided with two mounting areas, and the third fixing surface (103) is provided with three mounting areas.

3. The multi-dimensional adjustment device for clamping a lens according to claim 1, characterized in that: The adjustment unit (2) comprises an adjustment plate (201) and an elastic member (202), one end of the elastic member (202) contacts the adjustment plate (201), and the other end of the elastic member (202) contacts the fixing surface, wherein the fixing unit (3) is fixed to a side of the adjustment plate (201) away from the fixing surface.

4. The multi-dimensional adjustment device for clamping a lens according to claim 3, characterized in that: The mounting hole (200) is located at a preset position of the adjustment plate (201); a first threaded hole (104) is provided on the periphery of the positioning hole (100); a through hole (203) is provided on the periphery of the mounting hole (200); and the axes of the mounting hole (200) and the through hole (203) are parallel to each other; the positions of the first threaded hole (104) and the through hole (203) correspond to each other; wherein the elastic member (202) is located between the through hole (203) and the first threaded hole (104); the adjustment bolt passes through the through hole (203); and the elastic member (202) extends into the first threaded hole (104).

5. The multi-dimensional adjustment device for clamping a lens according to claim 4, characterized in that: The adjustment plate (201) is provided with a second threaded hole (204), the axis of the second threaded hole (204) is perpendicular to the axis of the through hole (203), the second threaded hole (204) is connected to the through hole (203), and a first top screw is provided in the second threaded hole (204).

6. The multi-dimensional adjustment device for clamping a lens according to claim 4, characterized in that: A third threaded hole (205) is provided in the adjustment plate (201), the axis of the third threaded hole (205) is perpendicular to the axis of the mounting hole (200), the third threaded hole (205) is connected to the mounting hole (200), and a second top screw is provided in the third threaded hole (205).

7. The multi-dimensional adjustment device for clamping a lens according to claim 4, characterized in that: The elastic member (202) is a spring.

8. The multi-dimensional adjustment device for clamping a lens according to claim 4, characterized in that: Three first threaded holes (104) are arranged on the periphery of each positioning hole (100), and the connecting line of the three first threaded holes (104) forms an isosceles right triangle.

9. The multi-dimensional adjustment device for clamping a lens according to claim 1, characterized in that: A thread (300) is provided at one end of the fixing unit (3) facing the adjusting unit (2), and the thread (300) and the mounting hole (200) have sizes that match each other.

10. The multi-dimensional adjustment device for clamping a lens according to claim 1, characterized in that: A fourth threaded hole (302) is provided on the side of the fixing unit (3), and a fixing bolt extends into the fourth threaded hole (302) for fixing the lens (4) to the fixing unit (3).

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