CN217543448U - QBH optic fibre collimation module of accurate focusing - Google Patents
QBH optic fibre collimation module of accurate focusing Download PDFInfo
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- CN217543448U CN217543448U CN202221289532.8U CN202221289532U CN217543448U CN 217543448 U CN217543448 U CN 217543448U CN 202221289532 U CN202221289532 U CN 202221289532U CN 217543448 U CN217543448 U CN 217543448U
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- snap ring
- main sleeve
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- clamping ring
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- 239000000835 fiber Substances 0.000 title claims abstract description 26
- 210000001503 joint Anatomy 0.000 claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a QBH optic fibre collimation module of accurate focusing, include from the right QBH optic fibre tapered end, but positioning alignment mechanism and collimation module mount pad of turning left, but positioning alignment mechanism is including preventing rotary connector, main sleeve, suit at the outer snap ring subassembly of main sleeve and the collimation mirror subassembly that is located the main sleeve inner chamber, collimation mirror subassembly includes the drum picture frame of slidable mounting in the main sleeve and places the collimation lens of drum picture frame in with, the snap ring subassembly includes left snap ring and right snap ring, and left snap ring and right snap ring butt joint form and place the annular mouth of preventing the rotary connector outer end, prevent that rotary connector inner passes the main sleeve and insert the through-hole that the drum picture frame corresponds the matching, when the snap ring subassembly is rotatory, can promote to prevent rotary connector axial displacement to drive collimation mirror subassembly and slide in the main sleeve, have accurate focusing, focus effectual, advantage such as structural design is ingenious.
Description
Technical Field
The utility model belongs to the technical field of the fiber laser processing, concretely relates to QBH fiber alignment module of accurate focusing.
Background
The optical fiber laser, as a novel processing industry, occupies greater and greater specific gravity in the processing field, and has the advantage of long-distance flexible transmission. The optical fiber core diameter is small, the divergence angle of the output light beam is large, and in order to stably transmit and convert, the collimation and the beam expansion of the optical fiber output light beam are needed, and the divergence angle is compressed.
With the wide application of the fiber laser in the industry, the requirement on the collimation of the laser emitted by the fiber laser is higher and higher, and because the fiber core diameter is very small, the laser output by the fiber laser is divergent non-collimated light and needs to be converted into a collimated light beam through a collimating device so as to meet the requirements of transmission and light beam transformation of various spatial light paths; because the position of the output end of the optical fiber is not strictly standard and inaccurate, and a certain difference also exists in the divergence angle of the light beam after the light beam passes through the collimating lens group due to the mechanical processing error and the lens processing error, the error causes the deviation of the optimally designed light path structure, and the focus position of the focusing light path system is not in an ideal plane.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a QBH optic fibre collimation module of accurate focusing, device stability is strong, and the distance between adjustable collimating mirror group and the optic fibre output terminal surface is solved because of the position inaccuracy of optic fibre output end, machining error, lens machining error lead to the focus position of focus light path system not in the problem of ideal plane department.
Therefore, the utility model discloses the technical scheme who adopts does: the utility model provides a QBH optic fibre collimation module of accurate focusing, includes from right QBH optic fibre tapered end, the alignment mechanism that can shift and collimation module mount pad of turning left, alignment mechanism that can shift is including preventing changeing connecting piece, main sleeve, suit at the outer snap ring subassembly of main sleeve and the collimation mirror subassembly that is located the main sleeve inner chamber, collimation mirror subassembly includes the cylinder picture frame of slidable mounting in the main sleeve and places the collimation lens of cylinder picture frame in with, the snap ring subassembly includes left snap ring and right snap ring, and left snap ring and right snap ring butt joint form place the annular mouth of preventing changeing the connecting piece outer end, prevent changeing the connecting piece inner and pass the main sleeve and insert the through-hole that the cylinder picture frame corresponds the matching, when the snap ring subassembly is rotatory, can promote to prevent changeing connecting piece axial displacement to drive collimation mirror subassembly and slide in the main sleeve.
Preferably, the clamping ring assembly is installed on the outer wall of the main sleeve in a threaded mode, connection is stable, stability of axial movement of the clamping ring assembly is effectively guaranteed, when the clamping ring assemblies rotate in the same direction, the movement directions are consistent, and when the right clamping ring and the left clamping ring rotate in opposite directions, the outer end of the anti-rotation connecting piece can be limited; the right end of the left snap ring is L-shaped, and the right snap ring is provided with a notch which is butted with the horizontal extension part at the right end of the left snap ring and is perfectly buckled, so that dust is effectively prevented from entering the inside of the main sleeve; the periphery of the outer wall of the left clamping ring is provided with equally-divided scale lines, so that the position accuracy of the collimating lens is effectively guaranteed, and accurate adjustment is realized.
Further preferably, the clamping ring assembly is made of aluminum alloy, the anti-rotation connecting piece comprises an anti-rotation pin and an aluminum alloy clamping ring sleeved outside the main sleeve, the direct contact between the clamping ring assembly made of the aluminum alloy and the anti-rotation pin made of the steel is avoided, the clamping ring assembly is prevented from being damaged due to contact friction, the contact area is increased through the aluminum alloy clamping ring, the contact surface is smooth, and the abrasion of parts is effectively avoided; the anti-rotation pin is installed on the aluminum alloy snap ring and penetrates through the main sleeve inwards to be inserted into the through hole of the cylindrical mirror frame.
Further preferably, the collimation module mounting base is provided with axial scale marks for calculating the axial movement position of the left snap ring, so that the positioning is accurate, and the positioning precision is ensured.
Preferably, the thread pitch of the clamping ring assembly is 0.5-0.6 mm, the evenly-divided scale lines of the outer wall of the left clamping ring are ten scales, so that the position adjusting precision of the collimating mirror assembly is limited to 0.05-0.06 mm, and the adjusting precision is high.
Preferably, two groups of collimating lenses are adopted, so that the effects of collimating, expanding beams and compressing divergence angles of light beams output by the optical fibers are guaranteed.
The utility model has the advantages that:
(1) When the clamping ring component rotates, the anti-rotation connecting piece can be pushed to move axially, so that the collimating mirror component is driven to slide in the main sleeve, the distance between the collimating mirror component and the optical fiber output end face can be adjusted, the size and the position of a focused light beam focus are accurate, the influences of position inaccuracy, machining errors and lens machining errors of the optical fiber output end can be reduced to the maximum extent, the focus position of a focusing optical path system can be effectively guaranteed to be in an ideal plane by manually adjusting the position, and the focusing effect is good.
(2) The clamping ring assembly comprises a left clamping ring and a right clamping ring, the left clamping ring and the right clamping ring are butted to form an annular groove for placing the outer end of the anti-rotation connecting piece, the inner end of the anti-rotation connecting piece penetrates through the main sleeve and is inserted into a through hole correspondingly matched with the cylindrical mirror frame, the structural design is ingenious, and the rings are buckled with each other; the butt joint through left snap ring and right snap ring can effectively be fixed prevent changeing the connecting piece outer end, and structural stability is strong, avoids preventing changeing the connecting piece and rocks and lead to the collimating mirror subassembly position to rock to the laser that influences QBH optic fibre output becomes the effect of collimated light beam.
In conclusion, the focusing device has the advantages of precise focusing, good focusing effect, ingenious structural design and the like.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a front sectional view of the present invention.
Fig. 3 is a schematic view of a structure of an uninstalled snap ring assembly.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
referring to fig. 1-3, a QBH fiber alignment module with precise focusing comprises a QBH fiber lock head 1, an adjustable alignment mechanism 2 and an alignment module mounting base 3.
The position-adjustable collimating mechanism 2 consists of an anti-rotation connecting piece 24, a main sleeve 21, a snap ring component 22 sleeved outside the main sleeve 21 and a collimating mirror component 23 positioned in an inner cavity of the main sleeve 21.
The collimator lens assembly 23 is composed of a cylindrical lens frame 231 slidably mounted in the main sleeve 21 and collimator lenses 232 embedded in the cylindrical lens frame 231, and two sets of the collimator lenses 232 are used.
The snap ring assembly 22 is composed of a left snap ring 221 and a right snap ring 222.
The clamping ring assembly 22 is installed on the outer wall of the main sleeve 21 in a threaded mode, the thread pitch of the clamping ring assembly 22 is preferably 0.5 mm-0.6 mm, the right end of the left clamping ring 221 is L-shaped, the right clamping ring 222 is provided with a notch in butt joint with the horizontal extending portion of the right end of the left clamping ring 221, the periphery of the outer wall of the left clamping ring 221 is provided with equal dividing scale lines which are ten scales, and therefore the position adjusting accuracy of the collimating mirror assembly is limited to 0.05 mm-0.06 mm.
The left snap ring 221 and the right snap ring 222 are butted to form a ring notch for placing the outer end of the anti-rotation connector 24, and the inner end of the anti-rotation connector 24 penetrates through the main sleeve 21 and is inserted into a through hole correspondingly matched with the cylinder frame 231.
The anti-rotation connector 24 is composed of an anti-rotation pin 242 and an aluminum alloy snap ring 241 sleeved outside the main sleeve 21.
The rotation preventing pins 242 are mounted on the aluminum alloy snap ring 241 and inserted inwardly through the main sleeve 21 into the through-holes of the cylinder frame 231.
The main sleeve 21 is provided with an axial waist-shaped slot 211 for the rotation-preventing pin 242 to move, and the length of the waist-shaped slot 211 is preferably 10mm to 15mm.
The collimating module mount 3 is provided with axial graduation marks 31 for calculating the axial moving position of the left snap ring 221.
Connect laser instrument and QBH fiber lock 1 to send laser, laser becomes collimated light beam after adjustable aligning gear 2, when snap ring subassembly 22 was rotatory, can promote to prevent changeing 24 axial displacements of connecting piece, thereby drive collimating mirror subassembly 23 and slide in main sleeve 21.
When the snap ring assemblies 22 rotate in the same direction and the moving directions are the same, the outer ends of the anti-rotation connecting pieces 24 can be limited when the right snap ring 222 and the left snap ring 221 rotate in opposite directions.
And the position of the collimating lens 232 can be accurately adjusted through the thread pitch of the clamping ring assembly 22, the equal division scale lines of the outer wall of the left clamping ring 221 and the axial scale lines 31 of the collimating module mounting seat 3, so that the focus position of the collimated light beam is in an ideal plane.
Claims (6)
1. The utility model provides a QBH optic fibre collimation module of accurate focusing which characterized in that: including from right QBH fiber lock head (1) to left, aligning gear (2) and collimation module mount pad (3) can be positioned, aligning gear (2) can be positioned including preventing changeing connecting piece (24), main sleeve (21), suit snap ring subassembly (22) outside main sleeve (21) and be located collimating mirror subassembly (23) of main sleeve (21) inner chamber, collimating mirror subassembly (23) including slidable mounting at the drum picture frame (231) in main sleeve (21) and place collimating mirror piece (232) of drum picture frame (231) in, snap ring subassembly (22) include left snap ring (221) and right snap ring (222), and left snap ring (221) and right snap ring (222) butt joint form the annular mouth of placing commentaries on classics connecting piece (24) outer end, prevent changeing connecting piece (24) inner and pass main sleeve (21) and insert the through-hole that drum picture frame (231) corresponds the matching, when collimating mirror subassembly (22) is rotatory, can promote to prevent changeing connecting piece (24) axial displacement to drive collimating mirror subassembly (23) and slide in main sleeve (21).
2. The fine-focus QBH fiber alignment module of claim 1, wherein: the clamping ring assembly (22) is installed on the outer wall of the main sleeve (21) in a threaded mode, the right end of the left clamping ring (221) is L-shaped, the right clamping ring (222) is provided with a notch in butt joint with the horizontal extending portion of the right end of the left clamping ring (221), and the periphery of the outer wall of the left clamping ring (221) is provided with equally-divided scale lines.
3. The fine-focus QBH fiber alignment module of claim 1, wherein: snap ring subassembly (22) are the aluminum alloy material, prevent changeing connecting piece (24) including preventing changeing pin (242) and suit aluminum alloy snap ring (241) outside main sleeve (21), prevent changeing pin (242) and install on aluminum alloy snap ring (241) and pass the through-hole that main sleeve (21) inserted drum picture frame (231) inwards.
4. The fine-focus QBH fiber alignment module of claim 1, wherein: the collimation module mounting seat (3) is provided with axial scale marks (31) for calculating the axial movement position of the left snap ring (221).
5. The fine-focus QBH fiber alignment module of claim 2, wherein: the thread pitch of the clamping ring assembly (22) is 0.5-0.6 mm, and the graduation lines of the outer wall of the left clamping ring (221) are ten graduations.
6. The fine-focus QBH fiber alignment module of claim 1, wherein: two groups of collimating lenses (232) are adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221289532.8U CN217543448U (en) | 2022-05-26 | 2022-05-26 | QBH optic fibre collimation module of accurate focusing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221289532.8U CN217543448U (en) | 2022-05-26 | 2022-05-26 | QBH optic fibre collimation module of accurate focusing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217543448U true CN217543448U (en) | 2022-10-04 |
Family
ID=83441054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221289532.8U Active CN217543448U (en) | 2022-05-26 | 2022-05-26 | QBH optic fibre collimation module of accurate focusing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217543448U (en) |
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2022
- 2022-05-26 CN CN202221289532.8U patent/CN217543448U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240131 Address after: 215000 Suzhou, Jiangsu Province, China (Jiangsu) Pilot Free Trade Zone Suzhou Area, Suzhou Industrial Park, No. 155 Suhong West Road Patentee after: Suzhou Carmen Hass Laser Technology Co.,Ltd. Country or region after: China Address before: 215201 155 Suhong West Road, Suzhou Industrial Park, Jiangsu Province Patentee before: CARMANHAAS LASER TECHNOLOGY (SUZHOU) CO.,LTD. Country or region before: China |