CN213702248U - Rotary-cut perforating device based on dove prism - Google Patents
Rotary-cut perforating device based on dove prism Download PDFInfo
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- CN213702248U CN213702248U CN202022404173.3U CN202022404173U CN213702248U CN 213702248 U CN213702248 U CN 213702248U CN 202022404173 U CN202022404173 U CN 202022404173U CN 213702248 U CN213702248 U CN 213702248U
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Abstract
The utility model belongs to the technical field of laser beam machining, specifically provide rotary-cut perforating device based on dove prism, including layer board that can whole horizontal migration, the speculum that sets gradually along the light path direction, a set of complementary optical wedge, dove prism and the focusing lens of placing, speculum and optical wedge group are fixed to be installed on the layer board, place rotatable empty electrocardio built-in the dove prism, the processing material is located on the focus of focusing lens. The scheme has the advantages of fewer adjusting devices, simpler installation steps and simpler adjusting steps. The optical wedge device can be used for holes with different apertures and different tapers without replacing devices, the problems of simple adjustment of the rotation angle of the optical wedge and the overall position of the carriage can be solved, and the processing cost is greatly reduced. The efficiency of the hollow motor working on the rotation of the laser beam is improved by utilizing the dove prism, the punching efficiency is doubled compared with other methods, and the overall efficiency is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of laser beam machining, concretely relates to rotary-cut perforating device based on dove prism.
Background
Laser drilling is the laser processing technology which is the earliest to achieve the practicability, and is one of the main application fields of laser processing, and the laser drilling processing technology is widely applied to numerous industrial processing technologies and is mainly used in the industries of aerospace, automobile manufacturing, electronic instruments and the like. How to solve the required aperture size of processing round hole, aperture tapering and circularity are the main problems that laser beam drilling needs to consider. The traditional punching process mainly comprises drill bit punching and electric spark machining punching, the drill bit punching precision is low, the hole diameter change cannot be timely changed, the traditional punching process is suitable for holes with the diameter of more than 2mm, the drill bit is easy to break, the yield is low, the like, the electric spark punching has the problems of instability, high energy consumption and the like, the machining speed is low, and the holes punched by the method have the problems of edge burning, conicity and the like.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a rotary-cut perforating device based on dove prism of simple structure, with low costs to solve above-mentioned technical problem.
Therefore, the utility model provides a rotary-cut perforating device based on dove prism, including layer board that can whole horizontal migration, the speculum that sets gradually along the light path direction, a set of complementary optical wedge of placing, dove prism and focusing lens, speculum and optical wedge are fixed to be installed on the layer board, place rotatable hollow motor in the dove prism in, the processing material is located focusing lens's focus.
Preferably, a set of two complementary optical wedges are identical in model and are respectively a fixed optical wedge and a deflectable optical wedge, wherein the fixed optical wedge is fixed, and the deflectable optical wedge is arranged on the supporting plate in a deflectable manner.
Preferably, the fixed wedge deflects the laser light to a certain extent, a laser deflection angle δ of the fixed wedge is (n-1) α, n is a refractive index of the wedge, α is a wedge refraction angle, the deflectable wedge deflects θ, the deflection angle θ of the deflectable wedge defines a wedge thickness to deflect toward the fixed wedge to be positive and negative in reverse, and a final laser deflection angle is (n-1) α
Preferably, the focal length R and the aperture R of the focusing lens are expressed as:
wherein f is the focal length of the focusing lens, phi is the deflection angle of the laser beam, and R is the aperture size.
Preferably, the pallet is driven by a motor.
Preferably, the 90-degree plane reflector on the supporting plate forms an included angle of 45 degrees with the light rays, so that the incident light rays and the emergent light rays are in the same horizontal plane.
Preferably, the light beam passes through an axis of the hollow motor about which the hollow motor rotates.
The utility model has the advantages that: the utility model provides a rotary-cut perforating device based on dove prism, including layer board that can whole horizontal migration, the speculum that sets gradually along the light path direction, a set of complementary optical wedge, dove prism and the focusing lens of placing, speculum and optical wedge are fixed to be installed on the layer board, place rotatable hollow heart machine in the dove prism in, the processing material is located in the focus of focusing lens. The scheme has the advantages of fewer adjusting devices, simpler installation steps and simpler adjusting steps. The optical wedge device can be used for holes with different apertures and different tapers without replacing devices, the problems of simple adjustment of the rotation angle of the optical wedge and the overall position of the carriage can be solved, and the processing cost is greatly reduced. The efficiency of the hollow motor working on the rotation of the laser beam is improved by utilizing the dove prism, the punching efficiency is doubled compared with other methods, and the overall efficiency is greatly improved.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of the rotary cutting and punching device based on dove prism of the present invention;
fig. 2 is a detailed schematic view of two complementary optical wedges of the dove prism-based rotary cutting and punching device of the present invention;
fig. 3 is a schematic view of the laser beam of the dove prism-based rotary-cut perforating device of the present invention, which is perpendicularly incident on the surface of the material from one side;
fig. 4 is a schematic diagram of two situations of the laser beam of the dove prism-based rotary-cut perforating device obliquely incident on the surface of the material;
fig. 5 is a schematic diagram of the focusing lens of the rotary-cut perforating device based on dove prism of the present invention adjusting the focusing point to the inside and the bottom of the material.
Description of reference numerals: the device comprises a supporting plate 1, a reflecting mirror 2, an optical wedge 3, a hollow motor 4, a dove prism 5, a focusing mirror 6 and a processing material 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The utility model provides a rotary-cut perforating device based on dove prism, including layer board that can whole horizontal migration, the speculum that sets gradually along the light path direction, a set of complementary optical wedge, dove prism and the focusing lens of placing, speculum and optical wedge are fixed to be installed on the layer board, place rotatable hollow cardiac motor in the dove prism in, the processing material is located in the focus of focusing lens.
The centers of the reflector on the carriage and the two complementarily-placed optical wedges are positioned on the central axis of the laser beam;
one of the two complementary optical wedges is fixed, and the other optical wedge can be manually adjusted and can also be controlled to rotate by an electric control system with a power supply through wireless control. The fixed optical wedge can make laser form fixed deflection, and through the certain angle of deflecting about the optical wedge that can deflect, and then adjust laser deflection angle, rethread focusing lens, according to the formation of image law of focusing mirror, aperture size and laser beam incident with the focusing mirror when with the contained angle that deflects directly proportional, can adjust the aperture size of processing round hole.
The position of the laser beam relative to the focusing lens is adjusted by the reflector on the carriage through the integral movement of the carriage, corresponding calculation is carried out firstly, the carriage is adjusted to a proper position, and whether the moving distance of the carriage is proper or not is checked through the taper of the processed hole.
The movement of the focusing lens can adjust the movement of a focusing point relative to the inner surface or the inner part of the material, and reduce the influence of the laser beam on the aperture taper. Laser beams are focused and then are irradiated on the surface of a material, the laser beams are driven to rotate by a motor, energy received by the interior of the material is insufficient after the energy of the laser is acted on the surface, and the material cannot be completely punctured, so that the position of a focus is lowered when the hole is punched, the focus is slowly lowered from the upper surface of the material which is just started to the lower surface of the material, the rotary cutting is integrated, and the punching mode can be expressed as spiral descending punching.
Preferably, a set of two complementary optical wedges are identical in type and are respectively a fixed optical wedge and a deflectable optical wedge, wherein the fixed optical wedge is fixed, and the deflectable optical wedge is arranged on the supporting plate in a deflectable manner. The deflection angle of the optical wedge is the key for adjusting the aperture size, and the effect of the optical wedge is further optimized by calculating and selecting a proper optical wedge.
Preferably, the fixed optical wedge deflects the laser to a certain extent, and the laser deflection angle isδ＝(n-1)αN is the refractive index of the optical wedge,αfor wedge refraction angle, second deflectable wedge deflectionθDeflection angle of deflecting optical wedgeθDefining the deflection angle of the thick edge of the optical wedge towards the fixed optical wedge to be positive and negative in the opposite direction, and the final deflection angle of the laser is
Preferably, the expression of the focal length R and the aperture R of the focusing lens is:
wherein the content of the first and second substances,fin order to focus the focal length of the lens,φfor deflecting the laser beamTurning the angle, R is the aperture size.
Preferably, the pallet is driven by a motor. Or may be manually operated.
Preferably, the 90-degree plane reflector on the supporting plate forms an included angle of 45 degrees with the light rays, so that the incident light rays and the emergent light rays are on the same horizontal plane. When laser beams are incident, the plane reflector on the carriage forms an included angle of 45 degrees with the light rays, the horizontal incidence of the incident light rays is kept, the incident light rays and the emergent light rays are in the same horizontal plane, and the influence of other aspects on a light path is reduced
Preferably, the beam passes through an axis of the hollow motor about which the hollow motor rotates.
As shown in fig. 1 to 5, a rotary cutting and punching device based on dove prism comprises a reflector 2 and a group of optical wedges 3 which are complementarily arranged along the direction of an optical path, wherein the reflector 2 and the group of optical wedges 3 are arranged on a carriage 1 which can move integrally, pass through the dove prism 5 carried by a hollow motor 4, pass through a focusing lens 6 and finally focus light and hit on a processing material 7, as shown in fig. 1.
According to FIG. 2, the size of the machining aperture and the deflection angle of the laser beamφIn the context of a correlation, the correlation,
if the angle of deflection isφThe larger the diameter of the machining hole R, the larger the diameter.
The part for generating deflection angle is performed by two optical wedges, and the deflection angle generated by the fixed optical wedge
Angle of refraction of laser light after passing through first face of deflecting wedge
After the relevant deflection is further adjusted, the position of the focus needs to be adjusted, the thermal response of the focused light beam on the vertical side can be further reduced by placing the focus on the bottom surface, however, whether the oblique side of the focused light beam contacts the other side of the round hole needs to be considered, and if the oblique side of the focused light beam contacts the other side of the round hole, the focus needs to be moved upwards. In addition, the overall movement of the carriage is adjusted, as shown in fig. 3, to maintain the outer side perpendicular to the focus, so as to obtain a non-tapered machined surface. Fig. 4 is a schematic diagram of two cases of oblique incidence of the laser beam on the surface of the material, and fig. 5 is a schematic diagram of the focusing lens adjusting the focusing point to the inside and the bottom of the material.
The rotary cutting and punching device using the laser can effectively solve the related problems of the traditional punching, compared with the traditional method, the rotary cutting and punching device has the advantages of high precision, and the precision can be adjusted to the micron level after the laser is focused, so that the precision problem in the traditional process is solved. And because the laser has the characteristics of high energy, good directivity and the like, the thermal influence of the surface of the material perforated by the method is small; meanwhile, laser drilling is non-contact, so that the structure of the finally drilled material cannot be damaged, and various characteristics of the hole can be kept to the maximum extent. On the other hand, the deflection and the position of a laser beam are changed through the rotation of the optical wedge and the integral movement of the supporting plate, the diameter and the taper of the processing hole can be conveniently and directly adjusted through the focusing of the focusing lens, and the processing method is simple and convenient.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:
1. the utility model provides a rotary-cut perforating device based on dove prism, by aperture size and tapering that a speculum and a set of complementary light wedge decision processed, the adjusting device is less, and installation steps is simpler, and the regulation step is also comparatively simple. The optical wedge device can be used for holes with different apertures and different tapers without replacing devices, the problems of simple adjustment of the rotation angle of the optical wedge and the overall position of the carriage can be solved, and the processing cost is greatly reduced.
2. The utility model provides a rotary-cut perforating device based on dove prism rotates laser beam through using dove prism, through the characteristics of dove prism: the dove prism rotates theta, and the passing laser beam rotates 2 theta, so that the efficiency of the hollow motor working on the rotation of the laser beam is improved by utilizing the dove prism, the punching efficiency is doubled compared with other methods, and the overall efficiency is greatly improved.
3. The utility model provides a rotary-cut perforating device based on dove prism, effect through a set of complementary optical wedge device and focusing lens for focus is assembled perpendicularly to one side of laser beam after the focus, under the effect of this vertical edge, at the in-process that punches, can reduce near the material upper surface hole the heat effect and the hole periphery possibility of collapsing the limit, also guarantee through this vertical edge that the laser is vertical incidence, guarantee the tapering in hole, improve the pleasing to the eye degree in hole.
4. The utility model provides a rotary-cut perforating device based on dove prism, through the removal to focusing lens, the position of adjustable focus can remove the focus to the material surface, and material bottom surface or other positions of material select suitable position, make the energy of the inside distribution of laser can make full use of, adjust laser beam self to the conical influence in aperture.
5. The utility model provides a rotary-cut perforating device based on dove prism introduces electrical system in the device after, can process the micropore of complicated structure at processing micropore in-process real-time control aperture and tapering.
In summary, the laser beam is reflected by a reflector, passes through a set of optical wedges which are arranged in a complementary way, so that the laser beam has a certain deflection angle, passes through a hollow motor with a dove prism to drive the laser beam to rotate, and finally, the beam with the deflection angle is focused into a beam with one side vertical to the material through a focusing lens. The method can be used in a plurality of fields such as laser drilling or surface treatment of certain materials and the like to improve the process efficiency.
The above illustration is merely an illustration of the present invention, and does not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a rotary-cut perforating device based on dove prism which characterized in that: the laser processing device comprises a supporting plate capable of moving horizontally as a whole, a reflecting mirror, a group of optical wedges, a dove prism and a focusing lens, wherein the reflecting mirror, the group of optical wedges, the dove prism and the focusing lens are arranged along the direction of a light path in sequence, the reflecting mirror and the group of optical wedges are arranged on the supporting plate in a complementary mode, the dove prism is arranged in a rotatable hollow motor, and a processing material is located on the focus of the focusing lens.
2. The dove prism-based rotary-cut perforating device as claimed in claim 1, wherein: the two optical wedges which are complementarily placed have the same type and are respectively a fixed optical wedge and a deflectable optical wedge, wherein the fixed optical wedge is fixed, and the deflectable optical wedge is arranged on the supporting plate in a deflection way.
3. The dove prism-based rotary-cut perforating device as claimed in claim 2, wherein: the fixed optical wedge deflects the laser to a certain extent, and the laser deflection angleδ＝(n-1)αN is the refractive index of the optical wedge,αfor wedge refraction angle, second deflectable wedge deflectionθDeflection angle of deflecting optical wedgeθDefining the deflection of the thick edge of the optical wedge towards the fixed optical wedge to be positive and negative in the opposite direction, wherein the final deflection angle of the laser is as follows:
4. waffle-based according to claim 1Rotary-cut perforating device of mirror, its characterized in that: the expression of the focal length R and the aperture R of the focusing lens is as follows:
wherein the content of the first and second substances,fin order to focus the focal length of the lens,φthe laser beam deflection angle is shown, and R is the aperture size.
5. The dove prism-based rotary-cut perforating device as claimed in claim 1, wherein: the pallet is driven by a motor.
6. The dove prism-based rotary-cut perforating device as claimed in claim 1, wherein: the 90-degree plane reflector on the supporting plate forms a 45-degree included angle with light rays, so that incident light rays and emergent light rays are on the same horizontal plane.
7. The dove prism-based rotary-cut perforating device as claimed in claim 1, wherein: the light beam passes through an axis of the hollow motor, about which the hollow motor rotates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022404173.3U CN213702248U (en) | 2020-10-26 | 2020-10-26 | Rotary-cut perforating device based on dove prism |
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| CN202022404173.3U CN213702248U (en) | 2020-10-26 | 2020-10-26 | Rotary-cut perforating device based on dove prism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905168A (en) * | 2022-05-31 | 2022-08-16 | 中国科学院西安光学精密机械研究所 | Machining system and machining method for micropores with large depth-diameter ratio |
| CN117092811A (en) * | 2023-10-18 | 2023-11-21 | 中国工程物理研究院激光聚变研究中心 | Beam deflection device based on rotary double optical wedges |
-
2020
- 2020-10-26 CN CN202022404173.3U patent/CN213702248U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905168A (en) * | 2022-05-31 | 2022-08-16 | 中国科学院西安光学精密机械研究所 | Machining system and machining method for micropores with large depth-diameter ratio |
| CN117092811A (en) * | 2023-10-18 | 2023-11-21 | 中国工程物理研究院激光聚变研究中心 | Beam deflection device based on rotary double optical wedges |
| CN117092811B (en) * | 2023-10-18 | 2023-12-22 | 中国工程物理研究院激光聚变研究中心 | Beam deflection device based on rotary double optical wedges |
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