CN216118152U - Quick parallel positioning device for multiple light tubes - Google Patents
Quick parallel positioning device for multiple light tubes Download PDFInfo
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- CN216118152U CN216118152U CN202122175673.9U CN202122175673U CN216118152U CN 216118152 U CN216118152 U CN 216118152U CN 202122175673 U CN202122175673 U CN 202122175673U CN 216118152 U CN216118152 U CN 216118152U
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Abstract
The utility model provides a quick parallel positioning device for multiple light pipes, which solves the problems that the existing multiple light pipes are simultaneously butted with multiple beams of parallel light, the assembling and adjusting process is more complicated, and a large amount of time is consumed. The device comprises a substrate, and a main positioning seat group and n auxiliary positioning seat groups which are arranged on the substrate; the main positioning seat group comprises a main positioning seat and n main pressing blocks, the main positioning seat is installed on the base plate, n main notches are formed in the main positioning seat, the n main pressing blocks are respectively arranged on the n main notches of the main positioning seat, and n first installation holes are formed between the n main notches and the n main pressing blocks; each auxiliary positioning seat group comprises an auxiliary positioning seat and an auxiliary pressing block, the auxiliary positioning seat is installed on the base plate, an auxiliary notch is formed in the auxiliary positioning seat, the auxiliary pressing block is arranged on the auxiliary notch of the auxiliary positioning seat, and a second installation hole is formed between the auxiliary notch and the auxiliary pressing block; the n second mounting holes of the n auxiliary positioning seat groups are respectively matched with the n first mounting holes and used for positioning the n light pipes.
Description
Technical Field
The utility model belongs to the technical field of optical system debugging, relates to a light pipe positioning device, and particularly relates to a high-precision rapid parallel positioning device for multiple light pipes.
Background
In the laser parameter measurement process, a beam of light is divided into a plurality of parallel beams of light by a light splitting system as required to measure different parameters of the beam of light.
As shown in fig. 1, taking an example of splitting a beam into three outgoing beams, the beam splitting system 01 splits the incident beam into three outgoing beams parallel to each other, and the distances between two adjacent outgoing beams are d1 and d 2. The three beams of light respectively enter three light tubes, and enter a detector for parameter measurement after beam contraction and collimation. The three light pipes are required to be respectively butted with the three beams of parallel light, and the three light pipes not only need to meet the accurate positioning of respective radial direction and axial direction, but also need to meet the parallelism requirement of the mutual parallelism and the index requirements of the distances d1 and d 2. In the process of assembling and adjusting the optical machine, the butt joint of one light pipe and a light beam is easy to realize, and a plurality of light pipes are simultaneously butt jointed with a plurality of parallel light beams, so that the posture of each light pipe needs to be continuously finely adjusted to realize the index requirement, the assembling and adjusting process becomes more complicated, and a large amount of time is consumed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a rapid parallel positioning device for multiple light pipes, which aims to solve the technical problems that the installation and adjustment process is complicated and a large amount of time is consumed because the posture of each light pipe needs to be continuously and finely adjusted when a plurality of light pipes are simultaneously butted with a plurality of beams of parallel light in the prior art.
In order to achieve the purpose, the technical scheme provided by the utility model is as follows:
a fast parallel positioning device of multiple light pipes is characterized in that: the positioning device comprises a substrate, and a main positioning seat group and a plurality of auxiliary positioning seat groups which are arranged on the substrate;
the number of the auxiliary positioning seat groups is equal to that of the light pipes, and the auxiliary positioning seat groups are n, and the n light pipes are used for being respectively butted with the n parallel light beams split by the light splitting system;
the main positioning seat group comprises a main positioning seat and n main pressing blocks, the main positioning seat is installed on the substrate, n main notches are formed in the main positioning seat, the n main pressing blocks are respectively arranged on the n main notches of the main positioning seat, and n first installation holes for positioning the n light tubes are respectively formed between the n main notches and the n main pressing blocks; the distance between two adjacent first mounting holes is matched with the distance between the parallel light beams split by the light splitting system;
each auxiliary positioning seat group comprises an auxiliary positioning seat and an auxiliary pressing block, the auxiliary positioning seat is installed on the base plate, an auxiliary notch is formed in the auxiliary positioning seat, the auxiliary pressing block is arranged on the auxiliary notch of the auxiliary positioning seat, and a second installation hole is formed between the auxiliary notch and the auxiliary pressing block;
the n second mounting holes of the n auxiliary positioning seat groups are respectively matched with the n first mounting holes and used for positioning the n light pipes.
Further, defining the mounting plane of the substrate as an F reference plane, and one side surface perpendicular to the F reference plane as an E reference plane;
the lower bottom surface of the main positioning seat is a B reference surface, the side surface which is vertical to the B reference surface and parallel to the axis of the first mounting hole is a C reference surface, and the side surface which is vertical to the B reference surface and the C reference surface is an A reference surface;
the lower bottom surface of the auxiliary positioning seat is a G datum plane, the side surface which is perpendicular to the G datum plane and parallel to the axis of the second mounting hole is an H datum plane, and the side surface which is perpendicular to the G datum plane and the H datum plane is an I datum plane;
the perpendicularity tolerance of the reference surface A and the reference surface E is less than or equal to 0.01 mm;
the perpendicularity tolerance of the axis of the first mounting hole and the A reference plane is less than or equal to 0.002mm, and the parallelism tolerance of the axis of the first mounting hole and the B reference plane and the C reference plane is less than or equal to 0.002 mm;
the perpendicularity tolerance between the axis of the second mounting hole and the I reference plane is less than or equal to 0.002mm, and the parallelism tolerance between the axis of the second mounting hole and the G reference plane and the parallelism tolerance between the axis of the second mounting hole and the H reference plane is less than or equal to 0.002 mm;
the coaxiality error of the second mounting hole and the first mounting hole matched with the second mounting hole is less than or equal to 0.02 mm.
Furthermore, the same side of each of the n main pressing blocks is provided with a first main mark, and the identification symbols of the first main marks on the n main pressing blocks are different;
and n second main marks are arranged on the side surface of the main positioning seat group, the positions of the n second main marks correspond to the positions of the n first main marks one by one, and the marks are the same in correspondence.
Furthermore, a first auxiliary mark is arranged on the side surface of the auxiliary pressing block, and a second auxiliary mark which is positioned on the same side as the first auxiliary mark is arranged on the side surface of the auxiliary positioning seat;
the first sub mark and the second sub mark of each sub positioning seat group have the same mark symbol, and the mark symbols of the n first sub marks of the n sub positioning seat groups are different.
Furthermore, n first clamping grooves for respectively mounting n main pressing blocks are formed in the main positioning seat;
and a second clamping groove for mounting the auxiliary pressing block is formed in the auxiliary positioning seat.
Furthermore, the unilateral clearance between the main pressing block and the first clamping groove and the unilateral clearance between the auxiliary pressing block and the second clamping groove do not exceed 0.02 mm.
Furthermore, threaded holes are formed in the tops of the main pressing block and the auxiliary pressing block and are arranged in the threaded holes through jackscrews for compressing the light pipe.
Furthermore, the jackscrew is made of polytetrafluoroethylene.
Furthermore, the main notch and the auxiliary notch have the same structure and are semicircular holes.
Compared with the prior art, the utility model has the advantages that:
1. the quick parallel positioning device positions the multiple light tubes through the main positioning seat group, and the multiple auxiliary positioning seat groups are matched with the main positioning seat group, so that the axial and radial positioning of the light tubes are ensured, the light tubes cannot rotate around the shaft, the position and the posture of the light tubes are completely determined, and the butt joint of the multiple light tubes and the multiple paths of parallel light can be realized simultaneously.
2. The rapid parallel positioning device can realize rapid and accurate butt joint of a plurality of light pipes and parallel light, and can realize accurate reset and rapid disassembly only by installing or disassembling the main pressing block and the auxiliary pressing block.
3. The main positioning seat group and the plurality of auxiliary positioning seat groups are respectively provided with a mark, and the installation directions of the main pressing block and the auxiliary pressing blocks are determined so as to avoid the influence on the precision of the installation holes due to misassembly.
4. The top of the main pressing block and the auxiliary pressing block are provided with threaded holes for auxiliary fixation of the light pipe.
Drawings
FIG. 1 is a schematic diagram of a light splitting system splitting incident light into three parallel beams of emergent light;
FIG. 2 is a schematic view of an embodiment of the fast parallel positioning apparatus of the present invention equipped with a light pipe;
FIG. 3 is a cross-sectional view taken along line E-E of FIG. 2;
FIG. 4 is a schematic structural diagram of a main padgroup in an embodiment of the fast parallel positioning apparatus of the present invention;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a side view of FIG. 4;
FIG. 7 is an enlarged view of a portion of FIG. 4 at I;
FIG. 8 is a schematic structural diagram of a sub-padgroup in an embodiment of the fast parallel positioning apparatus of the present invention;
FIG. 9 is a top view of FIG. 8;
FIG. 10 is a side view of FIG. 8;
FIG. 11 is an enlarged view of a portion of FIG. 8 at II;
FIG. 12 is a schematic diagram of an installation and adjustment of an embodiment of the fast parallel positioning apparatus of the present invention;
FIG. 13 is a sectional view taken along line F-F of FIG. 12;
wherein the reference numbers are as follows:
01-a light splitting system;
1-a main positioning seat group, 2-an auxiliary positioning seat group, 3-a substrate, 4-a first light pipe, 5-a second light pipe, 6-a third light pipe and 7-a first screw;
11-a main positioning seat, 12-a main pressing block, 13-a jackscrew, 14-a second screw, 15-a first main mark, 16-a second main mark, 17-a first clamping groove and 18-a first mounting hole;
21-auxiliary positioning seat, 22-auxiliary pressing block, 24-second mounting hole, 25-first auxiliary mark, 26-second auxiliary mark and 27-second clamping groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 2 and 3, the fast parallel positioning device for multiple light pipes of the present invention is composed of a substrate 3, and a main positioning seat group 1 and a plurality of sub positioning seat groups 2 mounted on the substrate 3; the number of the auxiliary positioning seat groups 2 is consistent with that of the light pipes to be positioned, and the light pipes are used for being in butt joint with the parallel light beams split by the light splitting system respectively.
As shown in fig. 4 to 6, the main positioning seat set 1 includes a main positioning seat 11 and a plurality of main pressing blocks 12, the main positioning seat 11 is mounted on the substrate 3 through a first screw 7, the main positioning seat 11 is provided with a plurality of main notches, the plurality of main pressing blocks 12 are respectively disposed on the plurality of main notches of the main positioning seat 11, a first mounting hole 18 of the light pipe is formed between each main notch and the main pressing block 12 that is matched with the main notch, the number of the first mounting holes 18 is determined by the light pipes that need to be positioned, that is, the number of the main notches and the main pressing blocks 12 is the same as the number of the light pipes that need to be positioned; the distance between two adjacent first mounting holes 18 is matched with the distance between the parallel light beams split by the light splitting system.
In this embodiment, 3 light pipes are positioned as an example, 3 light pipes are respectively a first light pipe 4, a second light pipe 5 and a third light pipe 6, 3 main notches are formed in the main positioning seat 11, 3 main pressing blocks 12 are provided, the 3 main pressing blocks 12 are respectively installed at the 3 main notches of the main positioning seat 11 through second screws 14 to form 3 first installation holes 18, and the 3 light pipes are fixed in a compression manner. A first clamping groove 17 for mounting the main pressing block 12 is designed on the main positioning seat 11; as shown in fig. 7, the main pressing block 12 is matched with the first locking groove 17, and after the main pressing block 12 is installed in the first locking groove 17, the single-side gap does not exceed 0.02mm, which is 0.02mm in this embodiment, so that the accurate positioning of the main pressing block 12 is ensured; the diameters of the first mounting holes 18 for respectively positioning the first light pipe 4, the second light pipe 5 and the third light pipe 6 are respectively D5, D4 and D3, the distances between the axes of the two adjacent first mounting holes 18 are respectively D1 and D2, the sizes D1 and D2 are determined by the distance between the parallel light beams split by the light splitting system, the distance between the center of the first mounting hole 18 and the lower plane of the main positioning seat 11 is D, and the size D is the height of the optical axis.
Size D3, D4, D5 are the mounting hole diameter of light pipe, and 3 first mounting holes 18 of this embodiment are not one-time machine-shaping, and the main breach on the main positioning seat 11 is the semicircle orifice, has also processed the semicircle orifice on the main briquetting 12, specifically divide into three steps: firstly, processing two semicircular holes on the main positioning seat 11 and the main pressing block 12, wherein the two semicircular holes are not directly processed to R (D23), R (D24) and R (D25), but are slightly smaller by 0.5mm and used as processing allowance; secondly, assembling the main positioning seat 11 and the main pressing block 12, and fixing the main pressing block and the main pressing block by using a second screw 14 to ensure that the positioning surface (M surface) of the main pressing block 12 and the positioning surface (N surface) of the main positioning seat 11 are flush; finally, according to the actual measurement size of the outer diameter of the light pipe installation position, the main positioning seat 11 and the main pressing block 12 form an installation hole which is combined and processed, so that the installation hole and the light pipe form interference fit N7/h6 of a base shaft system; meanwhile, the machining precision requirement of the first mounting hole 18 is relatively high, and it is defined that the lower bottom surface of the main positioning seat 11 is a B reference surface, the side surface perpendicular to the B reference surface and parallel to the axis of the first mounting hole 18 is a C reference surface, and the side surface perpendicular to both the B reference surface and the C reference surface is an a reference surface, so that the perpendicularity tolerance of the axis of the first mounting hole 18 and the a reference surface is less than or equal to 0.002mm, and the parallelism tolerance of the axis of the first mounting hole 18 and the B reference surface and the C reference surface is less than or equal to 0.002 mm.
After the first mounting hole 18 is machined, the first main mark 15 is arranged on the same side face of each of the 3 main pressing blocks 12, the identification symbols of the first main marks 15 on the 3 main pressing blocks 12 are different, the side face of the main positioning seat group 1 is also provided with 3 second main marks 16, the 3 second main marks 16 and the 3 first main marks 15 are located on the same side and are in position one-to-one correspondence, the marking symbols are in one-to-one correspondence, and the main pressing blocks 12 can be detached after the marks are made.
For example, as shown in fig. 4, the first main marks 15 on the 3 main pressing blocks 12 are ZD1, ZD2, and ZD3, respectively, the 3 second main marks 16 at the matching positions on the side surface of the main positioning seat group 1 are ZD1, ZD2, and ZD3, respectively, and ZD is an abbreviation of the main positioning seat group 1, and the purpose of marking is to make the main pressing blocks 12 correspond to the mounting positions on the main positioning seat 11 one by one, and determine the mounting direction of the main pressing blocks 12 at the same time, that is, the main pressing blocks 12 are mounted at the mounting positions with the same marks, and one side with the marks is flush, so as to prevent the main pressing blocks 12 from being mounted incorrectly, which affects the accuracy of the formed first mounting holes 18. The top of the main pressing block 12 is provided with a threaded hole, and a top thread 13 made of polytetrafluoroethylene can be screwed in as an auxiliary fixing after the light pipe is pressed.
The auxiliary positioning seat group 2 and the main pressing block 12 of the main positioning group are matched in pairs, the auxiliary positioning seat group 2 is matched with the first mounting hole 18 of the main positioning group to jointly position a light pipe, and the mounting positions of the 3 auxiliary positioning seat groups 2 are respectively matched with the 3 first mounting holes 18. As shown in fig. 8 to 10, the sub-mount group 2 is similar to the main mount group 1 in structure, the sub-mount group 2 is formed by assembling a sub-mount 21 and a sub-press block 22, the sub-mount 21 is mounted on the substrate 3, a sub-gap is formed on the sub-mount 21, the sub-press block 22 is disposed on the sub-gap of the sub-mount 21, and a second mounting hole 24 for positioning a light pipe is formed between the sub-gap of the sub-mount 21 and the sub-press block 22 and is fixed by pressing. A second clamping groove 27 for mounting the auxiliary pressing block 22 is also designed on the auxiliary positioning seat 21; as shown in fig. 11, the secondary pressing block 22 is matched with the second slot 27, and after the secondary pressing block is installed in the second slot 27, the single-side gap is not more than 0.02mm, which is 0.02mm in this embodiment, so that the accurate positioning of the secondary pressing block 22 is ensured; the 3 second mounting holes 24 of the 3 sub-anchor groups 2 are respectively matched with the 3 first mounting holes 18 of the main anchor group 1, and the matched first mounting holes 18 and second mounting holes 24 are used for positioning a light pipe.
The structure of the 3 sub-mount groups 2 in this embodiment is the same, except that the size of the 3 second mounting holes 24 formed by the 3 sub-mount groups 2 is adapted to the outer diameter of the light pipe to be located, the diameters of the 3 second mounting holes 24 are D6 matched with D5, D7 matched with D4, and D8 matched with D3, respectively, in fig. 9, the second mounting hole 24 with a diameter of D6 is shown, the distance from the center of the second mounting hole 24 to the lower plane of the sub-mount 21 is D, and the size D is the optical axis height.
The second mounting hole 24 on the auxiliary positioning seat group 2 is not formed by one-time processing, the auxiliary notch on the auxiliary positioning seat 21 is a semicircular hole, the semicircular hole is also processed on the auxiliary pressing block 22, and the specific processing steps are the same as the processing mode of the first mounting hole 18 on the main positioning seat group 1; meanwhile, the requirement on the machining precision of the second mounting hole 24 is high, and it is defined that the lower bottom surface of the auxiliary positioning seat 21 is a G-reference surface, the side surface perpendicular to the G-reference surface and parallel to the axis of the second mounting hole 24 is an H-reference surface, and the side surface perpendicular to both the G-reference surface and the H-reference surface is an I-reference surface, so that the perpendicularity tolerance between the axis of the second mounting hole 24 and the I-reference surface is less than or equal to 0.002mm, and the parallelism tolerance between the axis of the second mounting hole 24 and the G-reference surface and the H-reference surface is less than or equal to 0.002 mm.
After the second mounting hole 24 is machined, the auxiliary pressing blocks 22 are not dismounted, and the auxiliary positioning seat group 2 is marked, specifically, the side surfaces of 3 auxiliary pressing blocks 22 are provided with first auxiliary marks 25, and the side surface of the auxiliary positioning seat 21 is provided with a second auxiliary mark 26; the marks of the first auxiliary mark 25 and the second auxiliary mark 26 of each auxiliary positioning seat group 2 are the same, the marks of the 3 first auxiliary marks 25 of the 3 auxiliary positioning seat groups 2 are different, the marks on the side surfaces of the 3 auxiliary pressing blocks 22 in the embodiment are FD1, FD2 and FD3, FD is a short name of the auxiliary positioning seat group 2, and the purpose of marking is to enable the auxiliary pressing blocks 22 to correspond to the auxiliary positioning seats 21 one by one, and simultaneously determine the installation direction of the auxiliary pressing blocks 22, that is, the auxiliary pressing blocks 22 are installed on the auxiliary positioning seats 21 with the same marks, and the marked sides are flush, so as to prevent the auxiliary pressing blocks 22 from being mistakenly installed to influence the accuracy of the second installation holes 24 of the combined machining. The top of the secondary pressing block 22 is also provided with a threaded hole, and a top thread 13 made of polytetrafluoroethylene can be screwed in as an auxiliary fixing after the light pipe is pressed.
As shown in fig. 12 and fig. 13, taking 3 parallel beams split by the splitting system as an example, the adjusting steps of the fast parallel positioning apparatus in this embodiment are as follows:
first, a substrate 3 is mounted, a mounting plane of the substrate 3 is defined as an F reference plane, one side surface perpendicular to the F reference plane is defined as an E reference plane, and 3 parallel beams split by the beam splitting system are made parallel to the reference plane a and the reference plane F of the substrate 3, with a parallel tolerance 20 ″;
secondly, the main positioning seat group 1 is installed on the substrate 3 and fixed through a first screw 7, the accurate installation and adjustment are used for ensuring that the main positioning seat group is installed in place, the optical butt joint requirement of the light splitting system is met, and meanwhile, the perpendicularity tolerance of the A reference surface and the E reference surface is less than or equal to 0.01 mm; the dimension D13 (the distance from the axis of the first mounting hole of D3 to the end face of the substrate) and the dimension D9 (the distance from the end face of the main positioning seat parallel to the reference plane a to the end face of the substrate) are the positioning dimensions of the main positioning seat group 1; d1 and D2 are the intervals of the first mounting holes 18 on the main positioning seat group 1 and are determined by the intervals of the parallel light beams split by the light splitting system; d3, D4 and D5 are the diameters of the 3 first mounting holes 18 on the main positioning seat group 1 respectively; dimension D is the optical axis height;
next, the sub-anchor group 2 is installed, installed on the substrate 3 and fixed by the first screw 7, and it is required to ensure that the second installation holes 24 on the 3 sub-anchor groups 2 are coaxial with the 3 first installation holes 18 on the main anchor group 1, specifically: the coaxiality error of the second mounting hole 24 with the size D6 and the first mounting hole 18 with the size D5 is less than or equal to 0.02mm, the coaxiality error of the second mounting hole 24 with the size D7 and the first mounting hole 18 with the size D4 is less than or equal to 0.02mm, and the coaxiality error of the second mounting hole 24 with the size D8 and the first mounting hole 18 with the size D3 is less than or equal to 0.02 mm.
The parallelism requirement of the light pipes after being installed is guaranteed by combining the precision control of the mounting holes when the main positioning seat group 2 and the auxiliary positioning seat group 2 are processed; the interference fit between the main locating seat group 1 and the auxiliary locating seat group 2 and the light pipe also ensures that the light pipe can be compressed and cannot generate inclination or axial and radial play and rotation around a shaft. The dimensions D10, D11 and D12 in fig. 12 are the distances from the three secondary positioning bases 21 to the primary positioning base 11, and are determined by the structure of the light pipe.
Finally, after the main anchor group 1 and the sub-anchor group 2 are installed in place, in addition to meeting the above requirements, the parallel tolerance 20 ″ between the multiple axes formed by the first mounting hole on the main anchor group 1 and the second mounting hole on the sub-anchor group 2 corresponding to the first mounting hole and the reference plane a and F in the drawing should be ensured, and the directions are the same, and the installation can be realized by repairing and grinding the installation bottom surface of the sub-anchor group 2 if necessary. This ensures that the light pipes are not deflected from the optical axes of the parallel light after being installed, and the attitude of each light pipe is kept uniform.
The operation process of the fast parallel positioning device of the embodiment is as follows:
1) the main pressing block 12 of the main positioning seat group 1 and the auxiliary pressing block 22 on the auxiliary positioning seat group 2 are detached;
2) sequentially installing the light pipes to be installed at corresponding installation positions, and enabling the axial positioning surfaces of the light pipes to be abutted against the N surfaces of the main positioning seat group 1;
3) installing a main pressing block 12 and an auxiliary pressing block 22, pressing the light pipe, wherein the main pressing block 12 corresponds to the main and auxiliary positioning seats 21, the auxiliary pressing block 22 corresponds to the auxiliary positioning seats 21, and the marked sides are flush;
the installation and adjustment of the device of the embodiment ensure the parallelism requirement among the light pipes and the consistency of the installation posture of each light pipe, and ensure that the light pipes cannot deviate from the optical axis of the parallel light; step 2) and step 3) ensure the axial and radial positioning of the light pipe, and the light pipe can not rotate around the shaft; the two aspects completely determine the position and the posture of the light pipe to complete the positioning. If the light pipe needs to be removed, the main pressing block 12 and the auxiliary pressing block 22 are detached, and the light pipe is removed.
The fast parallel positioning device of the embodiment has the advantages that:
1) the butt joint of a plurality of light pipes and a plurality of paths of parallel light can be realized simultaneously.
2) The operation is simple and convenient, and the multi-light-tube can be quickly disassembled and assembled.
3) The positioning precision is high, and the angular deviation between the multiple light tubes is not more than 40'; the eccentric error of the butt joint of the optical axis of the light pipe and the optical axis of the parallel light is not more than 0.03mm, and the angle deviation is not more than 40'; the structure is stable and reliable.
The above description is only for the preferred embodiment of the present invention and does not limit the technical solution of the present invention, and any modifications made by those skilled in the art based on the main technical idea of the present invention belong to the technical scope of the present invention.
Claims (9)
1. A fast parallel positioning device of multiple light pipes is characterized in that: the positioning device comprises a substrate (3), and a main positioning seat group (1) and a plurality of auxiliary positioning seat groups (2) which are arranged on the substrate (3);
the number of the auxiliary positioning seat groups (2) is equal to that of the light pipes, and the auxiliary positioning seat groups are n, and the n light pipes are used for being respectively butted with the n parallel light beams split by the light splitting system;
the main positioning seat group (1) comprises a main positioning seat (11) and n main pressing blocks (12), the main positioning seat (11) is installed on the substrate (3), n main notches are formed in the main positioning seat (11), the n main pressing blocks (12) are respectively arranged on the n main notches of the main positioning seat (11), and n first installation holes (18) for positioning the n light tubes are respectively formed between the n main notches and the n main pressing blocks (12); the distance between two adjacent first mounting holes (18) is matched with the distance between the parallel light beams split by the light splitting system;
each auxiliary positioning seat group (2) comprises an auxiliary positioning seat (21) and an auxiliary pressing block (22), the auxiliary positioning seat (21) is installed on the base plate (3), an auxiliary notch is formed in the auxiliary positioning seat (21), the auxiliary pressing block (22) is arranged on the auxiliary notch of the auxiliary positioning seat (21), and a second installation hole (24) is formed between the auxiliary notch and the auxiliary pressing block (22);
the n second mounting holes (24) of the n auxiliary positioning seat groups (2) are respectively matched with the n first mounting holes (18) and used for positioning the n light pipes.
2. The multi-lightpipe fast parallel positioning apparatus of claim 1, wherein:
defining a mounting plane of the substrate (3) as an F reference plane, and one side surface perpendicular to the F reference plane as an E reference plane;
the lower bottom surface of the main positioning seat (11) is a B reference surface, the side surface which is vertical to the B reference surface and is parallel to the axis of the first mounting hole (18) is a C reference surface, and the side surface which is vertical to both the B reference surface and the C reference surface is an A reference surface;
the lower bottom surface of the auxiliary positioning seat (21) is a G reference surface, the side surface which is vertical to the G reference surface and parallel to the axis of the second mounting hole (24) is an H reference surface, and the side surface which is vertical to both the G reference surface and the H reference surface is an I reference surface;
the perpendicularity tolerance of the reference surface A and the reference surface E is less than or equal to 0.01 mm;
the perpendicularity tolerance between the axis of the first mounting hole (18) and the A reference plane is less than or equal to 0.002mm, and the parallelism tolerance between the axis of the first mounting hole and the B reference plane and the parallelism tolerance between the axis of the first mounting hole and the C reference plane is less than or equal to 0.002 mm;
the perpendicularity tolerance between the axis of the second mounting hole (24) and the I reference plane is less than or equal to 0.002mm, and the parallelism tolerance between the axis of the second mounting hole and the G reference plane and the parallelism tolerance between the axis of the second mounting hole and the H reference plane is less than or equal to 0.002 mm;
the coaxiality error of the second mounting hole (24) and the first mounting hole (18) matched with the second mounting hole is less than or equal to 0.02 mm.
3. The multi-lightpipe fast parallel positioning apparatus of claim 2, wherein: the same side of the n main pressing blocks (12) is provided with a first main mark (15), and the identification symbols of the first main marks (15) on the n main pressing blocks (12) are different;
the side surface of the main positioning seat group (1) is provided with n second main marks (16), the positions of the n second main marks (16) are in one-to-one correspondence with the positions of the n first main marks (15), and the mark symbols are the same in correspondence.
4. The multi-lightpipe fast parallel positioning apparatus of claim 3, wherein: a first auxiliary mark (25) is arranged on the side surface of the auxiliary pressing block (22), and a second auxiliary mark (26) which is positioned on the same side as the first auxiliary mark (25) is arranged on the side surface of the auxiliary positioning seat (21);
the first sub mark (25) and the second sub mark (26) of each sub positioning seat group (2) have the same mark symbol, and the n first sub marks (25) of the n sub positioning seat groups (2) have different mark symbols.
5. The multi-lightpipe fast parallel positioning apparatus of claim 4, wherein: n first clamping grooves (17) for respectively mounting n main pressing blocks (12) are formed in the main positioning seat (11);
and a second clamping groove (27) for mounting the auxiliary pressing block (22) is formed in the auxiliary positioning seat (21).
6. The multi-lightpipe fast parallel positioning apparatus of claim 5, wherein: the unilateral clearance between the main pressing block (12) and the first clamping groove (17) and the unilateral clearance between the auxiliary pressing block (22) and the second clamping groove (27) are not more than 0.02 mm.
7. The device for fast parallel positioning of multiple light pipes according to any one of claims 1 to 6, wherein: the top of the main pressing block (12) and the top of the auxiliary pressing block (22) are both provided with threaded holes, and the threaded holes are arranged through jackscrews (13) and used for tightly pressing the light pipe.
8. The multi-lightpipe fast parallel positioning apparatus of claim 7, wherein: the jackscrew (13) is made of polytetrafluoroethylene.
9. The multi-lightpipe fast parallel positioning apparatus of claim 1, wherein: the main notch and the auxiliary notch are of the same structure and are semicircular holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122175673.9U CN216118152U (en) | 2021-09-09 | 2021-09-09 | Quick parallel positioning device for multiple light tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122175673.9U CN216118152U (en) | 2021-09-09 | 2021-09-09 | Quick parallel positioning device for multiple light tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216118152U true CN216118152U (en) | 2022-03-22 |
Family
ID=80732167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122175673.9U Active CN216118152U (en) | 2021-09-09 | 2021-09-09 | Quick parallel positioning device for multiple light tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216118152U (en) |
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2021
- 2021-09-09 CN CN202122175673.9U patent/CN216118152U/en active Active
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