CN110883422A - Cutting edge detection device and laser cutting equipment - Google Patents

Cutting edge detection device and laser cutting equipment Download PDF

Info

Publication number
CN110883422A
CN110883422A CN201911324707.7A CN201911324707A CN110883422A CN 110883422 A CN110883422 A CN 110883422A CN 201911324707 A CN201911324707 A CN 201911324707A CN 110883422 A CN110883422 A CN 110883422A
Authority
CN
China
Prior art keywords
module
light
detection
focusing
cutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911324707.7A
Other languages
Chinese (zh)
Inventor
喻浩
许维
邱忠明
温彬
王雪辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Huagong Laser Engineering Co Ltd
Original Assignee
Wuhan Huagong Laser Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Huagong Laser Engineering Co Ltd filed Critical Wuhan Huagong Laser Engineering Co Ltd
Priority to CN201911324707.7A priority Critical patent/CN110883422A/en
Publication of CN110883422A publication Critical patent/CN110883422A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/03—Observing, e.g. monitoring, the workpiece
    • B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/38—Removing material by boring or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/40—Removing material taking account of the properties of the material involved
    • B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • B23K2103/54—Glass

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

The embodiment of the invention provides a cutting edge detection device and laser cutting equipment, and relates to the field of laser cutting. The cutting edge detection device comprises a first reflection module, a first focusing module, a second reflection module, a second focusing module and a detection module; the first reflection module, the first focusing module, the second reflection module and the second focusing module are used for allowing detection light rays to pass through in sequence and guiding the detection light rays to a part to be cut; the detection light can be reflected by the part to be cut and is turned back to the detection module; the second reflection module and the second focusing module are also used for allowing cutting light rays to sequentially pass through and guiding the cutting light rays to a part to be cut, and the cutting light rays are used for cutting the part to be cut; the detection module is used for detecting whether the returning light of the detection light is received or not. The cutting edge detection device and the laser cutting equipment can detect the cutting edge while cutting, and are favorable for improving the cutting quality.

Description

Cutting edge detection device and laser cutting equipment
Technical Field
The invention relates to the field of laser cutting, in particular to a cutting edge detection device and laser cutting equipment.
Background
The laser cutting can replace the traditional diamond cutter processing, and is widely used in the glass material removing and forming process. In laser glass cutting, when a laser focused beam enters the surface of glass from the edge of the glass to start cutting, the focused beam is refracted and reflected on the end surface and the lower surface of the glass with a certain thickness, and unnecessary light with certain energy can damage the upper surface of the glass.
Disclosure of Invention
The object of the present invention includes, for example, providing a cut edge detection device and a laser cutting apparatus, which can detect a cut edge while cutting, and which are advantageous for improving the cutting quality.
Embodiments of the invention may be implemented as follows:
in a first aspect, an embodiment provides a cutting edge detection apparatus, including a first reflection module, a first focusing module, a second reflection module, a second focusing module, and a detection module; the first reflection module, the first focusing module, the second reflection module and the second focusing module are used for allowing detection light rays to pass through in sequence and guiding the detection light rays to a part to be cut; the detection light can be reflected by the part to be cut, and after being reflected, the detection light is sequentially returned to the detection module along the second focusing module, the second reflecting module, the first focusing module and the first reflecting module; the second reflection module and the second focusing module are also used for allowing cutting light rays to pass through in sequence and guiding the cutting light rays to the part to be cut, and the cutting light rays are used for cutting the part to be cut; the detection module is used for detecting whether the return light of the detection light is received or not.
In an optional embodiment, the first reflection module includes a first reflection mirror and a rotation assembly, the first reflection mirror is in transmission connection with the rotation assembly, the rotation assembly is used for adjusting a reflection angle of the first reflection mirror to light, and the first reflection mirror is used for reflecting the detection light and the return light.
In an optional embodiment, the first focusing module includes a first focusing mirror and a mounting seat, the first focusing mirror is mounted on the mounting seat, and the first focusing mirror is configured to focus the detection light.
In an optional implementation mode, the second reflection module comprises a bidirectional light splitting gland, a supporting seat and a second reflection mirror, the second reflection mirror and the bidirectional light splitting gland are installed on the supporting seat, and the second reflection mirror can rotate relative to the supporting seat and is used for reflecting the cutting light, the detection light and the turning-back light.
In an alternative embodiment, the second focusing module includes a fixing base and a second focusing mirror, the second focusing mirror is mounted on the fixing base, and the second focusing mirror is used for focusing the cutting light and the detection light.
In an optional embodiment, the second focusing module further includes a third reflecting mirror, and the third reflecting mirror is mounted on the fixing base and located between the second focusing mirror and the second reflecting module, so that the light transmitted between the second reflecting module and the second focusing mirror passes through the third reflecting mirror.
In an optional embodiment, the detection module comprises a detection probe, a mounting frame and an adjusting mirror frame, the detection probe is installed on the mounting frame through the adjusting mirror frame, and the detection probe is used for detecting whether the turning-back light exists or not and sending a detection result to the controller.
In an optional embodiment, the cut edge detection apparatus further includes a collimation module, and the collimation module is configured to collimate the detection light.
In an alternative embodiment, the cutting edge detection device further comprises a light source for emitting the detection light.
In a second aspect, embodiments provide a laser cutting apparatus comprising a cut edge detection device as described in any one of the preceding embodiments.
The beneficial effects of the embodiment of the invention include, for example: the cutting light is transmitted to the part to be cut along the second transmitting module and the second focusing module in sequence. The detection light is transmitted to the part to be cut along the first reflection module, the first focusing module, the second reflection module and the second focusing module. On the part to be cut, the cutting light and the light spots of the detection light are concentric, the detection light generates the turn-back light under the reflection action of the part to be cut in the cutting process, and the turn-back light is transmitted to the detection module along the second focusing module, the second reflection module, the first focusing module and the first reflection module. When the cutting light and the detection light reach the edge with the cutting part, namely when the edge is cut, the detection light cannot be turned over by the part to be cut, namely when the cutting edge of the part to be cut is cut, the turning-back light cannot be generated, the detection module cannot receive the turning-back light, and therefore the cutting light and the detection light are judged to be positioned at the cut edge. The laser cutting equipment provided by the embodiment of the invention has a good edge detection effect and can realize high-quality cutting operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a laser cutting apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the cut edge detection apparatus shown in FIG. 1;
fig. 3 is a schematic structural diagram of the cut edge detection apparatus in fig. 2 from another view angle.
Icon: 10-laser cutting equipment; 20-a part to be cut; 100-cut edge detection means; 110-a first reflective module; 111-a first mirror; 112-a rotating assembly; 120-a first focusing module; 121-first focusing mirror; 122-a mount; 130-a second reflective module; 131-bidirectional light splitting gland; 132-a support base; 133-a second mirror; 140-a second focusing module; 141-a fixed seat; 142-a second focusing mirror; 143-a third mirror; 150-a detection module; 151-detection probe; 152-a mounting frame; 153-adjusting the frame; 160-a light source; 200-laser emitting device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1 to 3, the present embodiment provides a laser cutting apparatus 10, which is used for cutting a part to be cut 20, where the part to be cut 20 may be glass or the like. The laser cutting equipment 10 provided by the embodiment of the invention has a cutting edge detection function, and can effectively reduce the damage of the part 20 to be cut, thereby improving the quality of laser cutting.
It should be noted that the laser cutting apparatus 10 includes a laser emitting device 200 and a cut edge detecting device 100. Wherein, the laser emitting device 200 is used for emitting laser, which is a cutting light for cutting the part to be cut 20; the cutting edge detection apparatus 100 is capable of detecting a cutting edge and determining whether a cutting position is at the edge of the member to be cut 20.
In the embodiment of the present invention, the cutting edge detecting device 100 can detect whether it is at the edge in real time during the cutting operation of the part 20 to be cut, so as to adjust the laser emitting device 200 when detecting that it is at the edge of the part 20 to be cut, such as delaying light emission or turning off the laser emitting device 200.
In the embodiment of the present invention, the cutting edge detecting apparatus 100 includes a first reflection module 110, a first focusing module 120, a second reflection module 130, a second focusing module 140, and a detecting module 150; the first reflection module 110, the first focusing module 120, the second reflection module 130 and the second focusing module 140 are used for allowing the detection light to pass through in sequence and guiding the detection light to the part to be cut 20; the detection light can be reflected by the part to be cut 20, and after being reflected, the detection light is turned back to the detection module 150 along the second focusing module 140, the second reflecting module 130, the first focusing module 120 and the first reflecting module 110 in sequence; the second reflecting module 130 and the second focusing module 140 are further configured to allow cutting light to pass through in sequence and guide the cutting light to the part to be cut 20, and the cutting light is configured to cut the part to be cut 20; the detection module 150 is configured to detect whether a foldback light of the detection light is received.
It should be noted that, in the embodiment of the present invention, when the laser cutting apparatus 10 is in use, the laser emitting device 200 and the cutting edge detecting device 100 operate simultaneously, wherein the laser emitting device 200 emits the cutting light, the cutting light is transmitted to the component to be cut 20 along the second emitting module and the second focusing module 140 in sequence, and the cutting of the component to be cut 20 is realized along with the relative movement of the two. Meanwhile, the detection light is emitted through the first reflection module 110 of the cutting edge detection apparatus 100, and the reflection light is transmitted to the part to be cut 20 along the first emission module, the first focusing module 120, the second reflection module 130, and the second focusing module 140. On the part 20 to be cut, the cutting light and the light spot of the detection light are concentric, and the detection light generates a returning light under the reflection action of the part 20 to be cut during the cutting process, and the returning light is transmitted to the detection module 150 along the second focusing module 140, the second reflection module 130, the first focusing module 120 and the first reflection module 110. When the cutting light and the detection light reach the edge with the cutting member, that is, when the edge is cut, the detection light cannot be turned over by the member to be cut 20, that is, when the cutting edge of the member to be cut 20 cannot generate the turning back light, the detection module 150 cannot receive the turning back light, and thus it is determined that the cutting light and the detection light are at the cut edge.
The laser cutting device 10 provided by this embodiment can detect the position in the cutting process, so as to identify the edge position of the part to be cut 20, and when the edge position is located, the edge position can be timely provided to an operator or the laser emitting device 200, so that the laser emitting device performs the light-emitting delaying operation, thereby effectively reducing the energy accumulation of unnecessary light, reducing the damage to the part to be cut 20, and improving the cutting quality.
Meanwhile, it should be noted that when the cutting light and the detection light are determined to be at the cutting edge by the detection module 150, the laser emitting device 200 may be controlled by the controller to delay light emission or power off, so as to effectively reduce the reflection of the edge end of the to-be-cut part 20 to the converged light, reduce the energy accumulation of unnecessary light on the to-be-cut part 20, and greatly reduce the damage problem of the to-be-cut part 20. For example, the laser cutting device 10 according to the embodiment of the present invention can be used for cutting glass, the detection light generates a returning light by the reflection of the glass, and the glass cannot reflect the detection light at the edge position, thereby detecting the edge position. The cutting edge detection device 100 can effectively reduce the reflection of the end face of the edge of the glass to the converged light, thereby reducing the energy accumulation of unnecessary light on the upper surface of the glass and greatly reducing the glass damage problem. That is, the quality of laser cutting is improved.
In the embodiment of the present invention, the cutting light and the detection light share the second reflection module 130 and the second focusing module 140, so that on one hand, the cutting light and the detection light can be concentric with each other at the light spot on the workpiece to be cut, thereby ensuring synchronization of the cutting light and the detection light and realizing timely detection of the edge position; on the other hand, the use of parts can be saved, and the structure is compact and the use is convenient.
In an alternative embodiment, the above-mentioned cutting edge detection apparatus 100 may further include a light source 160, and the light source 160 is used for emitting detection light. That is, the cutting edge detection apparatus 100 may have its own light source 160, and the light source 160 may be a red light source 160, a blue light source 160, or the like. For example, the light source 160 is a red light source 160, and the return light of a red light macro-spot is used as a trigger signal for edge detection, so that the edge detection has sufficient response time, and the detection reliability is improved.
Referring to fig. 2 and fig. 3, in an alternative embodiment, the first reflection module 110 may include a first reflection mirror 111 and a rotation component 112, the first reflection mirror 111 is in transmission connection with the rotation component 112, the rotation component 112 is configured to adjust a reflection angle of the first reflection mirror 111 to the light, and the first reflection mirror 111 is configured to reflect the detection light and the returning light.
Optionally, the rotating assembly 112 may be driven to rotate by a motor, or may be adjusted manually, and the specific structure of the rotating assembly 112 is not limited in this embodiment.
In addition, for the incident light that needs to be collimated, in an alternative embodiment, the cut edge detection apparatus 100 may further include a collimation module, which is used to collimate the detection light. The collimating module may be disposed between the light source 160 and the first reflecting module 110 for collimating the light emitted from the light source 160.
Alternatively, the collimating module may be a collimating mirror and its mounting structure.
In an alternative embodiment, the first focusing module 120 may include a first focusing mirror 121 and a mounting seat 122, the first focusing mirror 121 is mounted on the mounting seat 122, and the first focusing mirror 121 is used for focusing the detection light.
It is understood that the above-mentioned mounting seat 122 is used for mounting the first focusing mirror 121, and the mounting seat 122 and the first focusing mirror 121 can be adjusted to adjust parameters such as the distance and the angle between the first focusing mirror 121 and the first reflective mirror and the second reflective mirror.
In an alternative embodiment, the second reflection module 130 may include a two-way light splitting cover 131, a support seat 132, and a second reflection mirror 133, where the second reflection mirror 133 and the two-way light splitting cover 131 are both mounted on the support seat 132, and the second reflection mirror 133 can rotate relative to the support seat 132 for reflecting the cutting light, the detection light, and the returning light.
Alternatively, the two-way light splitting gland 131 can simultaneously allow two beams of light to pass through the second mirror. Alternatively, in the version shown in the figures, the cutting light and the detection light are perpendicular to each other. Of course, the cutting light and the detecting light may be at other angles, such as acute angles.
In an alternative embodiment, the second focusing module 140 may include a fixing base 141 and a second focusing lens 142, the second focusing lens 142 is mounted on the fixing base 141, and the second focusing lens 142 is used for focusing the cutting light and the detecting light.
Further, the second focusing module 140 may further include a third reflecting mirror 143, and the third reflecting mirror 143 is mounted on the fixing base 141 and located between the second focusing mirror 142 and the second reflecting module 130, so that the light transmitted between the second reflecting module 130 and the second focusing mirror 142 passes through the third reflecting mirror 143.
That is, the third reflective mirror and the second focusing mirror 142 are mounted through the same fixing base 141, and the second focusing mirror 142 and the third reflective mirror are integrated in the same structure, so that the structure is compact and simple, and the installation and the teaching are facilitated.
In an alternative embodiment, the detection module 150 includes a detection probe 151, a mounting bracket 152, and an adjusting bracket 153, the detection probe 151 is mounted on the mounting bracket 152 by the adjusting bracket 153, and the detection probe 151 is configured to detect whether there is a turning light, and send the detection result to the controller.
Alternatively, the detecting probe 151 may be a photosensitive element, such as a photosensitive diode or the like.
It is understood that the mounting bracket 152 is used for mounting the detection probe 151 and an adjusting bracket 153, the adjusting bracket 153 can adjust the detection probe 151, and the adjusting bracket 153 can be adjusted by a knob or other means.
It should be noted that, the detecting probe 151 can detect whether there is a foldback light beam entering, and the signal sent to the controller by the detecting probe 151 when there is a foldback light beam entering is different from the signal sent when there is no foldback light beam entering, for example, the detecting probe sends out a high level when there is a foldback light beam entering, and sends out a low level when there is no foldback light beam entering. The controller automatically determines whether the cutting edge is located according to different signals from the detecting probe 151. In some embodiments, the controller may be electrically connected to the laser emitting device 200 for controlling the operating state of the laser emitting device 200. After the controller obtains the information, the controller can automatically control the laser emitting device 200 to delay emitting the laser, thereby reducing unnecessary light gathering and ensuring the cutting quality.
It should be noted that the first reflection module 110, the first focusing module 120, the second reflection module 130, the second focusing module 140, and the detection module 150 may all be mounted on the same platform, thereby facilitating teaching.
Referring to fig. 1 to fig. 3 in combination, the beneficial effects of the embodiment of the present invention include, for example: the laser emitting device 200 and the cutting edge detecting device 100 operate simultaneously, wherein the laser emitting device 200 emits a cutting light, the cutting light is transmitted to the component to be cut 20 along the second emitting module and the second focusing module 140 in sequence, and the cutting of the component to be cut 20 is realized along with the relative movement of the two. Meanwhile, the detection light is emitted through the first reflection module 110 of the cutting edge detection apparatus 100, and the reflection light is transmitted to the part to be cut 20 along the first emission module, the first focusing module 120, the second reflection module 130, and the second focusing module 140. On the part 20 to be cut, the cutting light and the light spot of the detection light are concentric, and the detection light generates a returning light under the reflection action of the part 20 to be cut during the cutting process, and the returning light is transmitted to the detection module 150 along the second focusing module 140, the second reflection module 130, the first focusing module 120 and the first reflection module 110. When the cutting light and the detection light reach the edge with the cutting member, that is, when the edge is cut, the detection light cannot be turned over by the member to be cut 20, that is, when the cutting edge of the member to be cut 20 cannot generate the turning back light, the detection module 150 cannot receive the turning back light, and thus it is determined that the cutting light and the detection light are at the cut edge. The laser cutting equipment 10 provided by the embodiment of the invention has a good edge detection effect and can realize high-quality cutting operation.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. The cutting edge detection device is characterized by comprising a first reflection module, a first focusing module, a second reflection module, a second focusing module and a detection module; the first reflection module, the first focusing module, the second reflection module and the second focusing module are used for allowing detection light rays to pass through in sequence and guiding the detection light rays to a part to be cut; the detection light can be reflected by the part to be cut, and after being reflected, the detection light is sequentially returned to the detection module along the second focusing module, the second reflecting module, the first focusing module and the first reflecting module; the second reflection module and the second focusing module are also used for allowing cutting light rays to pass through in sequence and guiding the cutting light rays to the part to be cut, and the cutting light rays are used for cutting the part to be cut; the detection module is used for detecting whether the return light of the detection light is received or not.
2. The cutting edge detection device according to claim 1, wherein the first reflection module comprises a first reflection mirror and a rotation assembly, the first reflection mirror is in transmission connection with the rotation assembly, the rotation assembly is used for adjusting a reflection angle of the first reflection mirror to light, and the first reflection mirror is used for reflecting the detection light and the return light.
3. The cutting edge detection device of claim 1, wherein the first focusing module comprises a first focusing lens and a mounting seat, the first focusing lens is mounted on the mounting seat, and the first focusing lens is used for focusing the detection light.
4. The device of claim 1, wherein the second reflection module comprises a two-way light-splitting gland, a support base, and a second reflection mirror, the second reflection mirror and the two-way light-splitting gland are mounted on the support base, and the second reflection mirror is capable of rotating relative to the support base for reflecting the cutting light, the detection light, and the returning light.
5. The cutting edge detection device of claim 1, wherein the second focusing module comprises a fixed seat and a second focusing lens, the second focusing lens is mounted on the fixed seat, and the second focusing lens is used for focusing the cutting light and the detection light.
6. The cut edge detection device of claim 5, wherein the second focusing module further comprises a third mirror mounted on the mounting base and located between the second focusing mirror and the second reflecting module for passing light passing between the second reflecting module and the second focusing mirror through the third mirror.
7. The cutting edge detection device according to any one of claims 1 to 6, wherein the detection module comprises a detection probe, a mounting frame and an adjusting mirror frame, the detection probe is mounted on the mounting frame through the adjusting mirror frame, and the detection probe is used for detecting whether the turning light exists or not and sending a detection result to the controller.
8. The cut edge detection device of any one of claims 1-6, further comprising a collimation module for collimating the detection light.
9. The cutting edge detection device according to any one of claims 1 to 6, further comprising a light source for emitting the detection light.
10. A laser cutting apparatus comprising the cut edge detection device according to any one of claims 1 to 9.
CN201911324707.7A 2019-12-20 2019-12-20 Cutting edge detection device and laser cutting equipment Pending CN110883422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911324707.7A CN110883422A (en) 2019-12-20 2019-12-20 Cutting edge detection device and laser cutting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911324707.7A CN110883422A (en) 2019-12-20 2019-12-20 Cutting edge detection device and laser cutting equipment

Publications (1)

Publication Number Publication Date
CN110883422A true CN110883422A (en) 2020-03-17

Family

ID=69752589

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911324707.7A Pending CN110883422A (en) 2019-12-20 2019-12-20 Cutting edge detection device and laser cutting equipment

Country Status (1)

Country Link
CN (1) CN110883422A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101750013A (en) * 2008-12-01 2010-06-23 株式会社迪思科 Edge detection device and laser processing device
CN103347641A (en) * 2011-01-31 2013-10-09 通快激光与系统工程有限公司 Method for cutting off an edge segment of workpiece by means of laser cut and associated laser cutting device
CN207104103U (en) * 2017-06-20 2018-03-16 深圳市韵腾激光科技有限公司 A kind of laser rotary cutter device
CN108700736A (en) * 2016-02-12 2018-10-23 Ipg光子公司 Laser cutting head with the double movable mirrors for providing beam alignment and/or oscillating motion
CN109952171A (en) * 2016-10-13 2019-06-28 通快机床两合公司 Method and apparatus for determining and adjusting the focal position of processing beam
CN211680512U (en) * 2019-12-20 2020-10-16 武汉华工激光工程有限责任公司 Cutting edge detection device and laser cutting equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101750013A (en) * 2008-12-01 2010-06-23 株式会社迪思科 Edge detection device and laser processing device
CN103347641A (en) * 2011-01-31 2013-10-09 通快激光与系统工程有限公司 Method for cutting off an edge segment of workpiece by means of laser cut and associated laser cutting device
CN108700736A (en) * 2016-02-12 2018-10-23 Ipg光子公司 Laser cutting head with the double movable mirrors for providing beam alignment and/or oscillating motion
CN109952171A (en) * 2016-10-13 2019-06-28 通快机床两合公司 Method and apparatus for determining and adjusting the focal position of processing beam
CN207104103U (en) * 2017-06-20 2018-03-16 深圳市韵腾激光科技有限公司 A kind of laser rotary cutter device
CN211680512U (en) * 2019-12-20 2020-10-16 武汉华工激光工程有限责任公司 Cutting edge detection device and laser cutting equipment

Similar Documents

Publication Publication Date Title
US5838431A (en) Laser marking device
WO2000031618A1 (en) Optical scanning type touch panel
JPH10206157A (en) Laser surveying instrument
CN103228386A (en) Miter saw with dual tracking light
US20140078489A1 (en) Optical radar device
US7554650B2 (en) Laser beam projecting device
CN211680512U (en) Cutting edge detection device and laser cutting equipment
JP6582124B2 (en) Optical device
JP2014145671A (en) Laser radar
CN110883422A (en) Cutting edge detection device and laser cutting equipment
US20220146638A1 (en) Multi-point scanning lidar and detection method thereof
US6782015B1 (en) Laser survey instrument
CN111856487A (en) Distance measuring device
US20200348400A1 (en) Lidar device
US10067294B2 (en) Beam distributor
JP2023542383A (en) laser radar
CN108165489A (en) Laser microprobe dating device and its method of work
US7566864B2 (en) Apparatus and methods for an area scanner having an adjustable mirror and a scan mirror with scan operable to 360 degrees
JP5072479B2 (en) Optical axis automatic adjustment system
JP2011075433A (en) Detector and adjustment jig
JP2007101404A (en) Wave transmitting/receiving apparatus and ranging apparatus
CN116008954B (en) Laser ranging system, laser transmitting and receiving module and double-line laser radar
JP4135842B2 (en) Laser projector
JP4975978B2 (en) Laser beam emitting device
CN221057833U (en) Laser beam combining device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination