CN212793575U - Laser cutting camera lens and laser cutting equipment - Google Patents
Laser cutting camera lens and laser cutting equipment Download PDFInfo
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- CN212793575U CN212793575U CN202020910293.8U CN202020910293U CN212793575U CN 212793575 U CN212793575 U CN 212793575U CN 202020910293 U CN202020910293 U CN 202020910293U CN 212793575 U CN212793575 U CN 212793575U
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Abstract
The application is suitable for the technical field of laser cutting, and provides a laser cutting lens and laser cutting equipment, wherein the laser cutting lens comprises a collimating lens and a focusing lens which are arranged on the same optical axis, a first translation mechanism connected with the collimating lens, and a second translation mechanism connected with the focusing lens; the first translation mechanism is used for controlling the collimating lens to translate along the direction of the optical axis, and the second translation mechanism is used for controlling the focusing lens to translate along the direction of the optical axis. The first translation mechanism is arranged to control the movement of the collimating lens along the optical axis, so that the size of a laser beam collimated by the collimating lens and irradiated to the focusing lens can be controlled, and the size of a light spot on the surface of a workpiece to be processed can be flexibly changed; furthermore, a second translation mechanism is arranged to control the movement of the collimating lens along the optical axis, the distance between the focusing lens and a workpiece to be processed can be controlled, converging light spots can be formed at different positions, and the laser cutting effect is ensured under the condition that the surface of the workpiece to be processed is not flat.
Description
Technical Field
The application relates to the technical field of laser cutting, in particular to a laser cutting lens 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 is transmitted to the laser cutting lens through the optical fiber, further refracted at the laser cutting lens, and focused to a small point to improve the power density, wherein the laser focusing position is an important technical parameter, and the spot size, the power density, the cutting thickness and the actual cutting effect of the laser are directly influenced. The position adjustment of the collimating lens and the focusing lens of the existing laser cutting machine is not flexible enough, so that the laser is not effectively converged to one point in many times, but a light spot is formed on the surface of a workpiece to be cut, the power density is low, and the thickness and the cutting efficiency of the laser cutting are influenced.
SUMMERY OF THE UTILITY MODEL
An object of the application is to provide a laser cutting camera lens, aim at solving the traditional laser cutting camera lens and focus the technical problem that the cutting thickness that the effect is poor to lead to is limited and cutting inefficiency.
The laser cutting lens is used for focusing laser to form a laser spot on the surface of a workpiece to be cut, a collimating lens used for decoupling and combining the laser in an optical fiber and irradiating the laser to the focusing lens at a preset light-emitting angle, a first translation mechanism connected with the collimating lens, and a second translation mechanism connected with the focusing lens; the focusing lens and the collimating lens are arranged on the same optical axis, the first translation mechanism is used for controlling the collimating lens to translate along the direction of the optical axis, and the second translation mechanism is used for controlling the focusing lens to translate along the direction of the optical axis.
In one embodiment of the present application, the laser cutting lens further includes a substrate, the first translation mechanism is fixedly connected to the substrate, the first translation mechanism includes a first lens holder on which the collimating lens is mounted, a first lead screw in threaded connection with the first lens holder, and a first motor for controlling the first lead screw to rotate; the first lead screw is arranged along the direction of the optical axis, the substrate is provided with a first slide rail, and the first lens seat is connected with the first slide rail in a sliding manner.
In one embodiment of the present application, the first translation mechanism further includes a first coupling, and the first motor is connected to the first lead screw through the first coupling.
In one embodiment of the present application, the first translation mechanism further includes a first bearing housing assembly fixedly connected to the base plate, and the first lead screw is connected to the first bearing housing assembly through a bearing.
In one embodiment of the present application, the first bearing seat assembly includes a first upper bearing seat and a first lower bearing seat, the first upper bearing seat and the first lower bearing seat are respectively disposed at two opposite ends of the first slide rail, and the first upper bearing seat and the first lower bearing seat are respectively connected to the first lead screw through a bearing.
In one embodiment of the present application, the laser cutting lens further includes a substrate, the second translation mechanism is fixedly connected to the substrate, the second translation mechanism includes a second lens holder on which the focusing lens is mounted, a second lead screw in threaded connection with the second lens holder, and a second motor for controlling the second lead screw to rotate; the second lead screw is arranged along the direction of the optical axis, the substrate is provided with a second slide rail, and the second lens seat is connected with the second slide rail in a sliding manner.
In one embodiment of the present application, the second translation mechanism further includes a second coupling, and the second motor is connected to the second lead screw through the second coupling.
In an embodiment of the present application, the second translation mechanism further includes a second bearing seat assembly fixedly connected to the base plate, and the second lead screw is connected to the second bearing seat assembly through a bearing.
In an embodiment of the present application, the second bearing housing assembly includes a second upper bearing housing and a second lower bearing housing, the second upper bearing housing and the second lower bearing housing are respectively disposed at two opposite ends of the second slide rail, and the second upper bearing housing and the second lower bearing housing are respectively connected to the second lead screw through a bearing.
Another object of the present application is to provide a laser cutting apparatus including the laser cutting lens as described above.
The implementation of the laser cutting lens provided by the application has the following beneficial effects at least:
the first translation mechanism is arranged to control the movement of the collimating lens along the optical axis, so that the size of a laser beam collimated by the collimating lens and irradiated to the focusing lens can be controlled, and the size of a light spot on the surface of a workpiece to be processed can be flexibly changed; furthermore, a second translation mechanism is arranged to control the movement of the collimating lens along the optical axis, the distance between the focusing lens and a workpiece to be processed can be controlled, converging light spots can be formed at different positions, and the laser cutting effect is ensured under the condition that the surface of the workpiece to be processed is not flat.
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 a schematic structural diagram of a laser cutting lens provided in an embodiment of the present application;
fig. 2 is an exploded schematic view of a laser cutting lens provided in an embodiment of the present application.
Reference numerals referred to in the above figures are detailed below:
1-a first translation mechanism; 10-a collimating lens; 11-a first electric machine; 12-a first lead screw; 13-a first lens holder; 14-a first coupling; 15-a first bearing housing assembly; 151-first upper bearing housing; 152-a first lower bearing seat; 2-a second translation mechanism; 20-a focusing lens; 21-a second motor; 22-a second lead screw; 23-a second lens holder; 24-a second coupling; 25-a second chock assembly; 251-a second upper bearing housing; 252-a second lower bearing seat; 3-a substrate; 31-a first slide rail; 32-second slide rail.
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.
Referring to fig. 1 and fig. 2, the present embodiment provides a laser cutting lens, including a focusing lens 20 for focusing laser to form a laser spot on a surface of a workpiece to be cut, a collimating lens 10 for decoupling laser in an optical fiber and irradiating the laser to the focusing lens 20 at a predetermined light exit angle, a first translation mechanism 1 connected to the collimating lens 10, and a second translation mechanism 2 connected to the focusing lens 20; the focusing lens 20 and the collimating lens 10 are arranged on the same optical axis, the first translation mechanism 1 is used for controlling the collimating lens 10 to translate along the direction of the optical axis, and the second translation mechanism 2 is used for controlling the focusing lens 20 to translate along the direction of the optical axis.
Specifically, the laser cutting lens provided by the present embodiment works as follows:
the laser light generated by the laser generator is transmitted to the collimator lens 10 through the optical fiber and is emitted from the optical fiber to the collimator lens 10 along the optical axis. The laser light generated by the laser generator is emitted through the optical fiber toward the collimating lens 10 not in a perfectly parallel light but with a small divergence angle that certainly affects the focusing effect of the focusing lens 20. The collimating lens 10 can reduce the emitting angle of the light beam, and in addition, the beam diameter of the light beam emitted from the collimating lens 10 to the focusing lens 20 can be controlled by controlling the distance between the collimating lens 10 and the end of the light beam. The size of the spot focused by the focusing lens 20 depends on the divergence angle and the beam size of the laser beam emitted from the collimating lens 10 to the focusing lens 20, the focal length of the focusing lens 20 itself, and the distance between the workpiece to be processed and the focusing lens 20. Specifically, the larger the emission angle is, the larger the diameter of a light spot generated after the focusing by the focusing lens 20 is; the larger the focal length of the focusing lens 20, the larger the spot diameter after focusing. The first translation mechanism 1 controls the movement of the collimating lens 10 along the optical axis, and the second translation mechanism 2 controls the movement of the collimating lens 10 along the optical axis, so that the beam size of the laser beam emitted from the collimating lens 10 to the focusing lens 20 and the distance between the workpiece to be processed and the focusing lens 20 can be controlled, and the position of the light spot convergence and the size of the light spot can be further controlled.
The laser cutting lens provided by the embodiment can at least achieve the following beneficial technical effects:
by arranging the first translation mechanism 1 to control the movement of the collimating lens 10 along the optical axis, the size of the laser beam collimated by the collimating lens 10 and irradiated to the focusing lens 20 can be controlled, and the size of a light spot on the surface of a workpiece to be processed can be flexibly changed; further, the second translation mechanism 2 is arranged to control the movement of the collimating lens 10 along the optical axis, so that the distance between the focusing lens 20 and the workpiece to be processed can be controlled, focused light spots can be formed at different positions, and the laser cutting effect can be ensured under the condition that the surface of the workpiece to be processed is not flat.
Referring to fig. 1 and fig. 2, in an embodiment of the present application, the laser cutting lens further includes a substrate 3, and the first translation mechanism 1 is fixedly connected to the substrate 3; the first translation mechanism 1 comprises a first lens base 13 for erecting the collimating lens 10, a first screw rod 12 in threaded connection with the first lens base 13, and a first motor 11 for controlling the first screw rod 12 to rotate; the first lead screw 12 is disposed in the direction of the optical axis. Specifically, a first slide rail 31 is arranged on the substrate 3 along the direction of the optical axis, the first lens holder 13 is slidably connected with the first slide rail 31, a first threaded hole with an internal thread is formed in the first lens holder 13, the first threaded hole is matched with the first lead screw 12, the first lead screw 12 is controlled to rotate by the first motor 11, the first lens holder 13 rotates along the first slide rail 31 along with the first lead screw 12 to translate, and then the collimating lens 10 is driven to translate along the optical axis.
Referring to fig. 1 and 2, in an embodiment of the present application, the first translation mechanism 1 further includes a first coupler 14, and the first motor 11 is connected to the first lead screw 12 through the first coupler 14. The first coupling 14 is used for transmitting the rotation torque output by the first motor 11 to the first lead screw 12, so as to control the rotation of the first lead screw 12.
As a specific solution of this embodiment, the first coupling 14 adopts a planetary reduction coupling, which is used to reduce the rotational speed of the rotation output by the first motor 11 and increase the rotational torque, so as to ensure that the first lens holder 13 can stably operate under the driving of the first motor 11.
Referring to fig. 1 and 2, in an embodiment of the present application, the first translation mechanism 1 further includes a first bearing seat assembly 15 fixedly connected to the base plate 3, and the first lead screw 12 is connected to the first bearing seat assembly 15 through a bearing. First bearing seat subassembly 15 is fixed to be set up in one side of base plate 3, and first bearing seat subassembly 15 inlays and is equipped with the bearing, and first lead screw 12 connects first bearing seat subassembly 15 through this bearing, and like this, first bearing seat subassembly 15 erects first lead screw 12 with first motor 11 jointly, can improve the stability of first translation mechanism 1 in the course of the work.
Referring to fig. 1 and fig. 2, as a specific solution of the present embodiment, the first bearing seat assembly 15 includes a first upper bearing seat 151 and a first lower bearing seat 152, the first upper bearing seat 151 and the first lower bearing seat 152 are respectively disposed at two opposite ends of the first slide rail 31, and the first upper bearing seat 151 and the first lower bearing seat 152 are respectively connected to the first lead screw 12 through bearings. In this way, the first motor 11, the first upper bearing seat 151 and the first lower bearing seat 152 are all connected with the first lead screw 12, so that the operation stability of the first translation mechanism 1 is improved.
Referring to fig. 1 and fig. 2, in an embodiment of the present application, the laser cutting lens further includes a substrate 3, and the second translation mechanism 2 is fixedly connected to the substrate 3. Specifically, the second translation mechanism 2 and the first translation mechanism 1 are both connected to the same substrate 3, and it can be ensured that the relative positions and relative postures of the first translation mechanism 1 and the second translation mechanism 2 are fixed in the use process of the laser cutting lens, so that the focusing lens 20 and the collimating lens 10 always have good coaxiality.
Referring to fig. 1 and 2, in an embodiment of the present application, the second translation mechanism 2 includes a second lens holder 23 for mounting the focusing lens 20, a second lead screw 22 in threaded connection with the second lens holder 23, and a second motor 21 for controlling the rotation of the second lead screw 22; the second lead screw 22 is disposed in the direction of the optical axis. Specifically, a second slide rail 32 is arranged on the substrate 3 along the optical axis, the second lens holder 23 is slidably connected to the second slide rail 32, a second screw hole with an internal thread is formed in the second lens holder 23, the second screw hole is matched with the second lead screw 22, the second motor 21 controls the second lead screw 22 to rotate, the second lens holder 23 rotates along the second slide rail 32 along with the second lead screw 22 to translate, and then the focusing lens 20 is driven to translate along the optical axis.
Referring to fig. 1 and 2, in an embodiment of the present application, the second translation mechanism 2 further includes a second coupling 24, and the second motor 21 is connected to the second lead screw 22 through the second coupling 24. The second coupling 24 functions to transmit the rotation torque output from the second motor 21 to the second lead screw 22, thereby controlling the rotation of the second lead screw 22.
As a specific solution of this embodiment, the second coupling 24 adopts a planetary reduction coupling, which is used to reduce the rotational speed of the rotation output by the second motor 21 and increase the rotational torque, so as to ensure that the second lens holder 23 can operate stably under the driving of the second motor 21.
Referring to fig. 1 and 2, in an embodiment of the present application, the second translation mechanism 2 further includes a second bearing seat assembly 25 fixedly connected to the substrate 3, and the second lead screw 22 is connected to the second bearing seat assembly 25 through a bearing. The second bearing seat assembly 25 is fixedly arranged on two sides of the substrate 3, a bearing is embedded in the second bearing seat assembly 25, and the second lead screw 22 is connected with the second bearing seat assembly 25 through the bearing, so that the second lead screw 22 is erected together by the second bearing seat assembly 25 and the second motor 21, and the stability of the second translation mechanism 2 in the working process can be improved.
Referring to fig. 1 and fig. 2, as a specific solution of the present embodiment, the second bearing seat assembly 25 includes a second upper bearing seat 251 and a second lower bearing seat 252, the second upper bearing seat 251 and the second lower bearing seat 252 are respectively disposed at two opposite ends of the second slide rail 32, and the second upper bearing seat 251 and the second lower bearing seat 252 are respectively connected to the second lead screw 22 through bearings. In this way, the second motor 21, the second upper bearing seat 251 and the second lower bearing seat 252 are all connected with the second lead screw 22, so that the operation stability of the second translation mechanism 2 is improved.
Another object of the present application is to provide a laser cutting apparatus including the laser cutting lens as described above. The laser cutting equipment further comprises a sensing device for detecting the positions of the first lens seat 13 and the second lens seat 23, 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 laser cutting lens, the sensing 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 collimating lens 10 along the optical axis through the transmission of optical fibers, the laser irradiates the surface of the workpiece to be processed through the laser cutting lens, 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. The laser cutting lens is characterized by comprising a focusing lens, a collimating lens, a first translation mechanism and a second translation mechanism, wherein the focusing lens is used for focusing laser to form a laser spot on the surface of a workpiece to be cut; the focusing lens and the collimating lens are arranged on the same optical axis, the first translation mechanism is used for controlling the collimating lens to translate along the direction of the optical axis, and the second translation mechanism is used for controlling the focusing lens to translate along the direction of the optical axis.
2. The laser cutting lens of claim 1, wherein the laser cutting lens further comprises a base plate, the first translation mechanism is fixedly connected with the base plate, the first translation mechanism comprises a first lens holder for mounting the collimating lens, a first lead screw in threaded connection with the first lens holder, and a first motor for controlling the first lead screw to rotate; the first lead screw is arranged along the direction of the optical axis, the substrate is provided with a first slide rail, and the first lens seat is connected with the first slide rail in a sliding manner.
3. The laser cutting lens of claim 2, wherein the first translation mechanism further comprises a first coupling, and the first motor is connected to the first lead screw through the first coupling.
4. The laser cutting lens of claim 2, wherein the first translation mechanism further comprises a first bearing block assembly fixedly connected to the base plate, and the first lead screw is connected to the first bearing block assembly through a bearing.
5. The laser cutting lens of claim 4, wherein the first bearing block assembly includes a first upper bearing block and a first lower bearing block, the first upper bearing block and the first lower bearing block are respectively disposed at opposite ends of the first slide rail, and the first upper bearing block and the first lower bearing block are respectively connected to the first lead screw through a bearing.
6. The laser cutting lens of any one of claims 1 to 5, wherein the laser cutting lens further comprises a base plate, the second translation mechanism is fixedly connected with the base plate, the second translation mechanism comprises a second lens holder for mounting the focusing lens, a second lead screw in threaded connection with the second lens holder, and a second motor for controlling the second lead screw to rotate; the second lead screw is arranged along the direction of the optical axis, the substrate is provided with a second slide rail, and the second lens seat is connected with the second slide rail in a sliding manner.
7. The laser cutting lens of claim 6, wherein the second translation mechanism further comprises a second coupling, and the second motor is connected to the second lead screw through the second coupling.
8. The laser cutting lens of claim 6, wherein the second translation mechanism further comprises a second bearing block assembly fixedly connected to the base plate, and the second lead screw is connected to the second bearing block assembly through a bearing.
9. The laser cutting lens of claim 8, wherein the second bearing block assembly includes a second upper bearing block and a second lower bearing block, the second upper bearing block and the second lower bearing block are respectively disposed at opposite ends of a second slide rail, and the second upper bearing block and the second lower bearing block are respectively connected to the second lead screw through a bearing.
10. A laser cutting apparatus comprising the laser cutting lens according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020910293.8U CN212793575U (en) | 2020-05-25 | 2020-05-25 | Laser cutting camera lens and laser cutting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020910293.8U CN212793575U (en) | 2020-05-25 | 2020-05-25 | Laser cutting camera lens and laser cutting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212793575U true CN212793575U (en) | 2021-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020910293.8U Active CN212793575U (en) | 2020-05-25 | 2020-05-25 | Laser cutting camera lens and laser cutting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212793575U (en) |
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2020
- 2020-05-25 CN CN202020910293.8U patent/CN212793575U/en active Active
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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. |
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| CP03 | Change of name, title or address |