CN212793574U - Lens calibrating device and laser cutting equipment - Google Patents
Lens calibrating device and laser cutting equipment Download PDFInfo
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- CN212793574U CN212793574U CN202020873097.8U CN202020873097U CN212793574U CN 212793574 U CN212793574 U CN 212793574U CN 202020873097 U CN202020873097 U CN 202020873097U CN 212793574 U CN212793574 U CN 212793574U
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Abstract
The application is suitable for the technical field of laser cutting, and provides a lens calibration device and laser cutting equipment, wherein the lens calibration device comprises a lens seat, a positioning component elastically abutted against the lens seat in the radial direction of an optical axis, and an adjusting component clamping the lens seat together with the positioning component; the lens seat is arranged along the circumferential direction of the optical axis; the adjusting component comprises an adjusting panel and a supporting piece, the adjusting panel is provided with a plurality of adjusting holes, the supporting piece is arranged in one-to-one mode with the adjusting holes, the adjusting panel is fixed to the position of the positioning component, the supporting piece penetrates through the adjusting holes and the supporting lens seat, and an included angle between the axial direction of the adjusting holes and the radial direction of the optical axis is smaller than or equal to 25 degrees. The lens calibration device is characterized in that elastic abutting force is applied to one side of a lens seat bearing a lens through a positioning component, an adjusting panel provided with an adjusting hole is arranged on the other side of the lens seat, rigid abutting force is applied to the lens seat through an abutting piece penetrating through the adjusting hole, the positioning component does not need to be adjusted, and the lens calibration can be realized only by adjusting the position of the abutting piece.
Description
Technical Field
The application relates to the technical field of laser cutting, in particular to a lens calibration device and laser cutting equipment.
Background
At present, the laser cutting technology has the characteristics of good cutting quality, high efficiency, high speed and non-contact cutting, and is widely applied to the technical field of processing in various industries. Laser cutting is to irradiate workpiece with focused high-power-density laser beam to melt, vaporize and ablate the irradiated material quickly or reach burning point, and blow off the molten material with the help of high-pressure gas coaxial with the beam or the steam pressure of the impacted metal to move the convergence point of the laser on the material relatively, so as to cut the workpiece.
For the practical operation of the laser cutting machine, the laser generated by the laser generator irradiates the lens through the conduction of the optical fiber, further refracts at the lens, and is focused on a small point to improve the power density, wherein the coaxiality of all the lenses in the laser cutting lens is very important, and the coaxiality directly influences the spot size, the power density, the cutting thickness and the actual cutting effect of the laser. In the existing lens, the scheme adopted for adjusting the coaxiality of each lens is that two threaded abutting parts abutting against the lens seat are arranged on two opposite sides of the lens seat, and the position of the lens can be adjusted by simultaneously rotating the two threaded abutting parts, so that the adjustment is inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the application is to provide a lens calibrating device, aim at solving the inconvenient technical problem of position adjustment of traditional laser cutting lens.
The lens calibration device comprises a lens seat used for clamping a lens arranged along an optical axis, a positioning component elastically abutted against the lens seat in the radial direction of the optical axis, and an adjusting component clamping the lens seat together with the positioning component; the lens seat is arranged along the circumferential direction of the optical axis; the adjusting part including set up a plurality of regulation holes the adjusting panel, and with the butt piece that the regulation hole set up one to one, the adjusting panel with locating component's rigidity, the butt piece passes regulation hole and butt the lens seat, the axial of regulation hole with contained angle between the radial direction of optical axis is less than or equal to 25.
In an embodiment of the present application, the lens calibration apparatus further includes a housing connected to the adjustment panel, the housing is disposed on one side of the adjustment panel opposite to the positioning component, and the positioning component is fixedly disposed in the housing.
In an embodiment of the present application, the positioning assembly includes a positioning seat having a plurality of positioning holes and fixed to the position of the adjustment panel, and a positioning member disposed in the positioning holes in a one-to-one manner, wherein the positioning member is disposed in the positioning holes and elastically abutted to the lens holder.
In an embodiment of the present application, a contact surface between the positioning seat and the lens seat is an arc surface extending along a circumferential direction of the optical axis, and an axial direction of the positioning hole is arranged along a radial direction of the optical axis; the setting element with the quantity of locating hole is six, six the locating hole sets gradually along the circumference direction of optical axis, adjacent two contained angle A between the axial of locating hole satisfies: a is more than or equal to 20 degrees and less than or equal to 40 degrees; and the first positioning hole and the last positioning hole are arranged on two opposite sides of the positioning component.
In one embodiment of the present application, the adjustment holes include a first adjustment hole and a second adjustment hole, an axis of the first adjustment hole intersecting an axis of the second adjustment hole.
In one embodiment of the application, a first boss is arranged at a position, opposite to the first adjusting hole, of the adjusting panel, and the top surface of the first boss is perpendicular to the axis of the first adjusting hole; and/or a second boss is arranged at the position of the adjusting panel, which is opposite to the second adjusting hole, and the top surface of the second boss is perpendicular to the axis of the second adjusting hole.
In one embodiment of the present application, an included angle B between an axis of the first regulation hole and an axis of the second regulation hole satisfies: b is more than or equal to 30 degrees and less than or equal to 45 degrees.
In an embodiment of the present application, the lens calibration device further includes an abutting plate disposed between the adjustment panel and the lens holder, the abutting plate is attached to the lens holder, and the abutting member abuts against the abutting plate.
In one embodiment of the present application, the abutting plate includes an abutting portion and a guide portion, and the guide portion is provided with a guide hole; the lens calibration device further comprises a positioning pin which passes through the guide hole and is connected with the adjusting panel.
It is a further object of the present application to provide a laser cutting apparatus comprising a lens calibration device as described above.
The implementation of the lens calibration device of the application has at least the following beneficial effects:
the lens calibration device comprises a lens seat, a positioning component, an adjusting panel, a butting component and a lens seat, wherein the lens seat is used for bearing a lens, the positioning component is used for applying elastic butting force to one side of the lens seat for bearing the lens, the adjusting panel with an adjusting hole is arranged on the other side of the lens seat, and rigid butting force is applied to the lens seat through the butting component penetrating through the adjusting hole.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is an exploded view of a lens alignment device according to an embodiment of the present disclosure;
fig. 2 is an exploded view of a lens calibration device provided in an embodiment of the present application from another viewing angle.
Reference numerals referred to in the above figures are detailed below:
1-a lens holder; 10-a lens; 11-an abutment plate; 111-an abutment; 112-a guide; 1120-guide holes; 2-a positioning assembly; 21-positioning seat; 210-positioning holes; 22-a positioning element; 3-a regulating component; 31-an adjustment panel; 311-a first boss; 312 — a second boss; 310-adjustment holes; 3101-a first adjustment aperture; 3102-a second adjustment aperture; 32-an abutment; 321-a first abutment; 322-a second abutment; 33-positioning pins.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
In order to explain the technical solutions of the present application, the following detailed descriptions are made with reference to specific drawings and examples.
The lens calibration device of the present embodiment includes a lens holder 1 for holding a lens 10 disposed along an optical axis, a positioning member 2 elastically abutting against the lens holder 1 in a radial direction of the optical axis, and an adjusting member 3 holding the lens holder 1 together with the positioning member 2; the lens holder 1 is arranged along the circumferential direction of the optical axis; the adjusting component 3 comprises an adjusting panel 31 provided with a plurality of adjusting holes 310 and an abutting piece 32 arranged with the adjusting holes 310 in a one-to-one manner, the adjusting panel 31 is fixed with the positioning component 2, the abutting piece 32 penetrates through the adjusting holes 310 and abuts against the lens base 1, and an included angle between the axial direction of the adjusting holes 310 and the radial direction of the optical axis is smaller than or equal to 25 degrees.
Specifically, the lens calibration apparatus provided in the present embodiment operates as follows:
the lens seat 1 is arranged along the circumferential direction of the optical axis, the lens seat 1 clamps the lens 10, the positions of the adjusting panel 31 and the positioning component 2 are relatively fixed, and the lens seat 1 is clamped together, so that the lens seat 1 can drive the lens 10 to move in a small range in a space defined by the adjusting panel 31 and the positioning component 2; adjusting panel 31 offers the regulation hole 310 that sets up along the radial direction of optical axis, butt piece 32 passes regulation hole 310 and butt lens holder 1, in the use, because be elastic butt between locating component 2 and the lens holder 1, the power between location group price and the lens holder 1 is positive correlation with locating component 2's elasticity deformation volume, and then can be through the contact force between control butt piece 32 and the lens holder 1, realize stretching out the control of the length of adjusting hole 310 to butt piece 32, final control lens holder 1's position, realize the position calibration of lens 10 on the plane of perpendicular to optical axis.
The lens calibration device provided by the embodiment can at least achieve the following technical effects:
an elastic abutting force is applied to one side of a lens seat 1 bearing a lens 10 through a positioning component 2, an adjusting panel 31 provided with an adjusting hole 310 is arranged on the other side of the lens seat 1, and a rigid abutting force is applied to the lens seat 1 through an abutting piece 32 penetrating through the adjusting hole 310, so that the acting force between the positioning component 2 and the lens seat 1 can be adjusted only by adjusting the position of the abutting piece 32, and finally the lens seat 1 is controlled to drive the lens 10 to move, and the calibration of the lens 10 is realized.
It should be understood that the optical axis in the embodiments of the present application refers to an optical axis of an ideal optical system in which the lens is located, that is, a straight line in which a direction in which light rays are not deflected in the ideal optical system in which the lens is located. The explanation applies to the description related to the optical axis in the embodiments of the present application, and the concept of the optical axis is only for briefly and clearly illustrating the mechanical structure of the lens calibration device in the embodiments of the present application, and should not be construed as limiting the present technical solution.
As a preferable aspect of the present embodiment, the axial direction of the adjustment hole 310 is arranged in the radial direction of the optical axis.
As a specific solution of the present embodiment, the abutment member 32 is an abutment member 32 with an external thread, and an internal thread adapted to the external thread of the abutment member 32 is provided in the adjusting hole 310. After the abutting piece 32 is rotated until one end of the abutting piece 32 with the external thread extends out of the adjusting hole 310, the abutting piece 32 abuts against the lens holder 1 along the radial direction of the optical axis, at this time, the abutting piece 32 is further rotated to enable the abutting piece 32 to extend out of the adjusting hole 310, so that the abutting piece 32 can enable the lens holder 1 to be jacked towards the direction of the positioning component 2, and the lens holder 1 drives the lens 10 to move towards one side far away from the abutting piece 32; the abutting member 32 is rotated in the opposite direction, so as to reduce the acting force between the abutting member 32 and the lens holder 1, and the lens holder 1 drives the lens 10 to move toward the side close to the abutting member 32 under the acting force of the elastic abutting of the positioning component 2.
In the scheme, the abutting piece 32 is provided with the external thread, the adjusting hole 310 is arranged in the internal thread matched with the external thread, so that the abutting force along the axial direction of the adjusting hole 310 can be converted into torque, and the acting force between the abutting piece 32 and the lens holder 1 is improved; the positioning component 2 can apply an elastic force to the lens holder 1, the abutting part 32 is also subjected to the acting force of the lens holder 1, and the external thread and the internal thread can tightly clamp the abutting part 32 in the adjusting hole 310 under the acting force, so that the abutting part 32 is prevented from loosening and falling off due to vibration in the actual use process; the length of the abutment member 32 protruding from the adjustment hole 310 can be controlled more accurately, and the accuracy of the alignment of the position of the lens 10 can be improved.
In an embodiment of the present application, the lens calibration apparatus further includes a housing (not shown) connected to the adjusting panel 31, the housing is disposed on a side of the adjusting panel 31 facing the positioning assembly 2, and the positioning assembly 2 is fixedly disposed in the housing.
In an embodiment of the present application, the positioning assembly 2 includes a positioning base 21 having a plurality of positioning holes 210 and fixed to the adjusting panel 31, and a positioning element 22 disposed in one-to-one correspondence with the positioning holes 210, wherein the positioning element 22 is disposed in the positioning holes 210 and elastically abuts against the lens holder 1. The positioning element 22 is disposed in the positioning hole 210 formed in the positioning base 21 and abuts against the lens holder 1, so as to realize the elastic abutment between the positioning assembly 2 and the lens holder 1.
In an embodiment of the present application, a contact surface of the positioning seat 21 and the lens holder 1 is an arc surface extending along a circumferential direction of the optical axis, and an axial direction of the positioning hole 210 is arranged along a radial direction of the optical axis; the number of the positioning pieces 22 and the positioning holes 210 is six, the six positioning holes 210 are sequentially arranged along the circumferential direction of the optical axis, and an included angle a between the axial directions of two adjacent positioning holes 210 satisfies: a is more than or equal to 20 degrees and less than or equal to 40 degrees; and the first positioning hole 210 and the last positioning hole 210 are disposed at opposite sides of the positioning assembly 2. Therefore, the elastic abutting force applied to the lens base 1 can be uniform, the positioning base 21 can be conveniently set to be of a semicircular structure, and the lens calibration device can be conveniently installed and processed.
In one embodiment of the present application, the positioning member 22 includes a tubular housing with an external thread, a steel ball disposed at one end of the tubular housing, and a spring disposed in the tubular housing and abutting against the steel ball, which abuts against the lens holder 1. The steel ball can stretch out or retract into the shell within a range of several millimeters under the action of the spring according to the magnitude of the received force, and the elastic abutting between the positioning component 2 and the lens seat 1 is realized.
In one embodiment of the present application, the adjustment apertures 310 include a first adjustment aperture 3101 and a second adjustment aperture 3102, the axis of the first adjustment aperture 3101 intersecting the axis of the second adjustment aperture 3102. Specifically, the abutting member 32 includes a first abutting member 321 passing through the first adjusting hole 3101 and a second abutting member 322 passing through the second adjusting hole 3102, the direction of the acting force applied to the lens holder 1 by the first abutting member 321 and the direction of the acting force applied to the lens holder 1 by the second abutting member 322 are different when the axis of the first adjusting hole 3101 and the axis of the second adjusting hole 3102 intersect, and the lens holder 1 can be controlled to move in any direction on a plane perpendicular to the optical axis by adjusting the positions of the first abutting member 321 and the second abutting member 322.
As a preferred aspect of the present application, an included angle B between the axis of the first adjustment hole 3101 and the axis of the second adjustment hole 3102 satisfies: b is more than or equal to 30 degrees and less than or equal to 45 degrees, specifically, 30 degrees or 45 degrees can be adopted, the first abutting part 321 and the second abutting part 322 are moved in the same direction, and the lens holder 1 can move in a first direction vertical to the optical axis; by moving the first contact member 321 and the second contact member 322 in opposite directions, the lens holder 1 can move in a second direction perpendicular to the optical axis and perpendicular to the first direction.
In one embodiment of the present application, the adjusting panel 31 is provided with a first boss 311 at a position opposite to the first adjusting hole 3101, and the top surface of the first boss 311 is perpendicular to the axis of the first adjusting hole 3101; and/or, the adjusting panel 31 is provided with a second boss 312 at a position opposite to the second adjusting hole 3102, and the top surface of the second boss 312 is perpendicular to the axis of the second adjusting hole 3102.
In the process of manufacturing the lens calibration device, the first boss 311 and the second boss 312 are respectively perpendicular to the axis of the first adjusting hole 3101 and the axis of the second adjusting hole 3102, and the included angle between the axis of the first adjusting hole 3101 and the axis of the second adjusting hole 3102 can be an acute angle, at this time, by arranging the first boss 311 and the second boss 312 on the adjusting panel 31, only the first adjusting hole 3101 and the second adjusting hole 3102 need to be processed along the direction perpendicular to the bosses, and the drilling equipment is not easy to slip and is convenient to process.
In one embodiment of the present application, the lens calibration device further comprises an abutment plate 11 disposed between the adjustment panel 31 and the lens holder 1, the abutment plate 11 being disposed in abutment with the lens holder 1, and the abutment member 32 being in abutment with the abutment plate 11. The abutting piece 32 abuts against the side surface of the lens holder 1 through the abutting plate 11, so that the abutting force applied to the lens holder 1 can be more uniform; the first contact member 321 and the second contact member 322 contact the lens holder 1 through the contact plate 11, so that the direction of the force applied to the lens holder 1 can be controlled, and the movement of the lens holder 1 in the plane perpendicular to the optical axis can be controlled.
In one embodiment of the present application, the abutting plate 11 includes an abutting portion 111 and a guiding portion 112, and the guiding portion 112 is opened with a guiding hole 1120; the lens aligning apparatus further includes a positioning pin 33, and the positioning pin 33 passes through the guide hole 1120 and is coupled with the adjustment panel 31. Specifically, the contact portion 111 is provided in contact with the lens holder 1, and the guide portion 112 extends along a plane perpendicular to the optical axis; the positioning pin 33 passes through the guide hole 1120 and is clamped on the adjusting panel 31, the cross section area of the positioning pin 33 is smaller than the area of the guide hole 1120, the positioning pin 33 can limit the position of the abutting plate 11, the deviation of the abutting plate 11 from a normal working position is avoided, and the abutting piece 32 is prevented from directly abutting against the lens holder 1.
The lens calibration device provided by each embodiment of the present application can be applied to adjust the position of the focusing lens 10 in the laser cutting lens.
The embodiment of the application also provides laser cutting equipment comprising the lens calibration device. The laser cutting equipment also comprises a laser generator for generating laser, an optical fiber for transmitting the laser, an airflow generator for generating air pressure to blow air, and a bracket for mounting the laser generator, the lens calibration device and the airflow generator; the support is provided with a workbench for processing a workpiece, laser generated by the laser generator is transmitted to the lens 10 along the optical axis through the transmission of the optical fiber, the laser irradiates the surface of the workpiece to be processed through the lens 10, and the airflow generated by the airflow generator is arranged right opposite to the position where the surface of the workpiece is processed.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A lens calibration device is characterized by comprising a lens seat for clamping a lens arranged along an optical axis, a positioning component elastically abutted against the lens seat in the radial direction of the optical axis, and an adjusting component for clamping the lens seat together with the positioning component; the lens seat is arranged along the circumferential direction of the optical axis; the adjusting part including set up a plurality of regulation holes the adjusting panel, and with the butt piece that the regulation hole set up one to one, the adjusting panel with locating component's rigidity, the butt piece passes regulation hole and butt the lens seat, the axial of regulation hole with contained angle between the radial direction of optical axis is less than or equal to 25.
2. The lens alignment device of claim 1, further comprising a housing coupled to the adjustment panel, the housing being disposed on a side of the adjustment panel opposite the positioning assembly, the positioning assembly being fixedly disposed within the housing.
3. The lens calibration device as claimed in claim 2, wherein the positioning assembly comprises a positioning seat having a plurality of positioning holes and fixed to the adjustment panel, and a positioning member disposed in one-to-one correspondence with the positioning holes, the positioning member being disposed in the positioning holes and elastically abutting against the lens holder.
4. The lens calibration device according to claim 3, wherein the contact surface of the positioning seat with the lens holder is an arc surface extending in the circumferential direction of the optical axis, and the axial direction of the positioning hole is arranged in the radial direction of the optical axis; the setting element with the quantity of locating hole is six, six the locating hole sets gradually along the circumference direction of optical axis, adjacent two contained angle A between the axial of locating hole satisfies: a is more than or equal to 20 degrees and less than or equal to 40 degrees; and the first positioning hole and the last positioning hole are arranged on two opposite sides of the positioning component.
5. The lens calibration apparatus of claim 1, wherein the adjustment holes comprise a first adjustment hole and a second adjustment hole, an axis of the first adjustment hole intersecting an axis of the second adjustment hole.
6. The lens calibration device of claim 5, wherein the position of the adjustment panel facing the first adjustment hole is provided with a first boss, and a top surface of the first boss is perpendicular to an axis of the first adjustment hole; and/or a second boss is arranged at the position of the adjusting panel, which is opposite to the second adjusting hole, and the top surface of the second boss is vertical to the axis of the second adjusting hole.
7. The lens collimating apparatus of claim 5, wherein the angle B between the axis of the first adjustment hole and the axis of the second adjustment hole satisfies: b is more than or equal to 30 degrees and less than or equal to 45 degrees.
8. The lens alignment device of claim 1, further comprising an abutment plate disposed between the adjustment panel and the lens housing, the abutment plate being disposed in abutment with the lens housing, the abutment member abutting the abutment plate.
9. The lens alignment device of claim 8, wherein the abutment plate comprises an abutment portion and a guide portion, the guide portion defining a guide hole; the lens calibration device further comprises a positioning pin which passes through the guide hole and is connected with the adjusting panel.
10. A laser cutting apparatus comprising a lens alignment device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020873097.8U CN212793574U (en) | 2020-05-22 | 2020-05-22 | Lens calibrating device and laser cutting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020873097.8U CN212793574U (en) | 2020-05-22 | 2020-05-22 | Lens calibrating device and laser cutting equipment |
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| Publication Number | Publication Date |
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| CN212793574U true CN212793574U (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020873097.8U Active CN212793574U (en) | 2020-05-22 | 2020-05-22 | Lens calibrating device and laser cutting equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654119A (en) * | 2022-04-15 | 2022-06-24 | 武汉光迅科技股份有限公司 | Limiting device for welding light port and lens assembly and using method thereof |
-
2020
- 2020-05-22 CN CN202020873097.8U patent/CN212793574U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654119A (en) * | 2022-04-15 | 2022-06-24 | 武汉光迅科技股份有限公司 | Limiting device for welding light port and lens assembly and using method thereof |
| CN114654119B (en) * | 2022-04-15 | 2023-08-29 | 武汉光迅科技股份有限公司 | Limiting device for welding optical port and lens assembly and application method thereof |
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Address after: 518000 floors 1-5, No. 8179-1, Bao'an Avenue, Digang community, Shajing street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Baichao (Shenzhen) Laser Technology Co.,Ltd. Address before: 518000 No. 5 Shajing Street Center Road, Baoan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen DNE Laser Science and Technology Co.,Ltd. |