CN111906437A - Connecting device for quickly disassembling and assembling laser head, laser head and laser processing equipment - Google Patents
Connecting device for quickly disassembling and assembling laser head, laser head and laser processing equipment Download PDFInfo
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- CN111906437A CN111906437A CN202010923898.5A CN202010923898A CN111906437A CN 111906437 A CN111906437 A CN 111906437A CN 202010923898 A CN202010923898 A CN 202010923898A CN 111906437 A CN111906437 A CN 111906437A
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- 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
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- 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
-
- 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
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- 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
- B23K26/073—Shaping the laser spot
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- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a connecting device for quickly disassembling and assembling a laser head, the laser head and laser processing equipment, which comprise a first connecting unit, a second connecting unit and a third connecting unit, wherein the first connecting unit is connected with a collimation unit of the laser head; and the second connecting unit is connected with the focusing unit of the laser head, and the laser head is disassembled and assembled through the detachable connection of the first connecting unit and the second connecting unit. The laser head rear end module can be rapidly switched to meet the functions of different laser processing technologies, so that the cost is saved, the working efficiency is greatly improved, and the processing quality is ensured.
Description
Technical Field
The invention relates to the field of laser processing, in particular to a connecting device for quickly disassembling and assembling a laser head, the laser head and laser processing equipment.
Background
Laser processing is industrially applied, is favored due to high precision, high speed, accurate position and small influence area, and can greatly improve the production and manufacturing efficiency by matching with automatic, digital and intelligent manufacturing. However, the common laser processing equipment can only be used for one machine, if one set of equipment can only complete one process of cutting, welding, melting, filler wire welding or composite welding, if different processing processes are required, the laser head, the optical fiber and various hardware such as a matched water path, an air path and a circuit need to be switched, the whole switching process is time-consuming and labor-consuming, faults are easy to occur, and once faults occur, the debugging needs to be carried out repeatedly, so that the working efficiency is greatly influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a connecting device for quickly dismounting a laser head, the laser head and laser processing equipment, which can quickly switch a rear end module of the laser head so as to meet the functions of different laser processing technologies, save the cost and greatly improve the working efficiency and ensure the processing quality.
In order to achieve the purpose, the invention provides the following technical scheme:
the connecting device for quickly disassembling and assembling the laser head comprises a first connecting unit, a second connecting unit and a connecting unit, wherein the first connecting unit is connected with a collimation unit of the laser head; and the second connecting unit is connected with the focusing unit of the laser head, and the laser head is disassembled and assembled through the detachable connection of the first connecting unit and the second connecting unit.
Preferably, the first connection unit includes: the first connecting body is annularly provided with a first connecting hole; the second connection unit includes: the second connecting main body is annularly provided with a second connecting hole; the fastener is detachably connected with the first connecting body and the second connecting body through the first connecting hole and the second connecting hole.
Preferably, the first connection unit further includes: a first waterway connecting hole and a first waterway channel which are annularly arranged on the first connecting body; the second connection unit further includes: a second water path connecting hole and a second air path channel which are annularly arranged on the second connecting main body; after the first connecting unit and the second connecting unit are detachably connected, the first waterway connecting hole and the second waterway connecting hole are communicated with each other; and the first air channel and the second air channel are communicated with each other.
Preferably, the first connection hole, the first water path connection hole, the first air path channel, the second connection hole, the second water path connection hole and the second air path channel may be multiple.
Preferably, the first connecting body is further annularly provided with a first detection hole for mounting a first position detection device; and/or a second detection hole for installing a second position detection device is further formed in the second connecting main body in the annular direction; when the first connecting piece and the second connecting piece are connected, the distance between the first connecting piece and the second connecting piece is detected through the first position detection device and/or the second position detection device, and a feedback signal is generated when the distance between the first connecting piece and the second connecting piece meets a preset condition so as to remind an operator that the first connecting piece and the second connecting piece are connected in place.
Preferably, a first annular groove for installing a first sealing element is formed in one surface, facing the second connecting main body, of the first connecting main body in the annular direction; and/or a second annular groove used for installing a second sealing element is formed in the circumferential direction on one surface, facing the first connecting main body, of the second connecting main body.
Still provide a laser head, it includes: the laser head quick assembling and disassembling device comprises a collimation unit, a focusing unit, a nozzle unit and the connecting device for quickly assembling and disassembling the laser head;
the collimating unit includes: a collimating lens barrel; one end of the transmission part is connected with the collimating lens cone, the other end of the transmission part is connected with the first connecting unit of the connecting device, and the central axis of the collimating lens cone is approximately vertical to the central axis of the transmission part; the collimating lens and the first reflecting lens are arranged in the collimating lens barrel;
the focusing unit includes: one end of the focusing lens cone is connected with the second connecting unit of the connecting device, and the other end of the focusing lens cone is connected with the nozzle unit; a second reflector and a protective lens, both disposed inside the focusing barrel;
the transmission part is detachably connected with the focusing lens barrel through the first connecting unit and the second connecting unit.
Preferably, the laser head further comprises: and the rotating connecting piece is connected with the outer wall surface of the side part of the collimating lens barrel and is coaxially connected with the transmission part, and the transmission part can rotate around the central axis of the rotating connecting piece.
Preferably, the laser head further comprises:
the dust removal unit is arranged in the focusing lens barrel, is positioned below the protective lens and is used for forming a positive pressure environment by introducing compressed gas;
and/or the robot is connected with the collimation unit so as to drive the laser head to move integrally;
and/or the focus measuring unit is coaxially arranged with the second reflecting mirror and is used for acquiring the light spot distance and/or the light spot diameter and displaying the light spot distance and/or the light spot diameter so as to facilitate field debugging;
and/or a dustproof cover plate for closing the open port of the separated first connecting unit and/or second connecting unit.
Still provide a kind of laser beam machining equipment including above-mentioned laser head.
Compared with the prior art, the invention has the following beneficial effects:
the laser head can be quickly assembled and disassembled through the first connecting unit and the second connecting unit, water and gas signals can be quickly switched through the water path connecting hole and the gas path channel according to needs, light spots with different diameters can be formed by further changing parameters such as the optical fiber core diameter, the focal length of the collimating lens, the focal length of the second reflector and the like, so that the requirements of different laser processing technologies such as cutting, welding, brazing, melting and the like can be better met, the cost is saved, the working efficiency can be greatly improved, and the processing quality is ensured.
Drawings
FIG. 1 is a schematic view of the connection device for quick mounting and dismounting of a laser head according to the present invention;
FIG. 2 is an overall view of the collimating unit and the focusing unit connected by the connecting device according to the present invention;
FIG. 3a is a longitudinal sectional view of the first coupling unit of the present invention;
FIG. 3b is a longitudinal sectional view of the second coupling unit of the present invention;
FIG. 3c is a front view of the laser head of the present invention with the exit angle of the laser deflected from the entrance angle of the laser into the collimating unit;
FIG. 4 is a longitudinal sectional view of the connecting device for quick mounting and dismounting of the laser head according to the present invention;
FIG. 5a is an overall schematic view of the laser head of the present invention;
FIG. 5b is a schematic view of the present invention with the focusing lens barrel alone connected to other components;
FIG. 6 is a cross-sectional view of an optical fiber of the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example 1:
the embodiment provides a connecting device for quickly disassembling and assembling a laser head, which comprises a first connecting unit 1, a second connecting unit 100, a third connecting unit and a fourth connecting unit, wherein the first connecting unit 1 is connected with a collimation unit 100 of the laser head; and the second connecting unit 2 is connected with the focusing unit 200 of the laser head, and the first connecting unit 1 and the second connecting unit 2 can be detachably connected to realize the quick assembly and disassembly of the laser head so as to meet the requirements of different laser processing technologies, for example, different focusing units 200 and nozzle units 300 connected with the different focusing units 200 can be connected with the first connecting unit 1 through the second connecting unit 2, and then the first connecting unit 1 and the collimation unit 100 form the laser head, so that the processing requirements such as cutting, welding, deposition and the like can be met.
Specifically, as shown in fig. 3a-3b, 4, the first connection unit 1 includes: a first connection body 11 having a first connection hole 111, a first waterway connection hole 112, and a first airway passage 113 formed in a circumferential direction;
correspondingly, the second connection unit 2 comprises: a second connecting body 21 having a second connecting hole 211, a second water passage connecting hole 212, and a second air passage 213 formed in an annular direction;
in this embodiment, the first connection hole 111 and the second connection hole 211 may be pin holes, and the repeated installation accuracy is within 0.01mm, and a fastener (such as a pin or the like) detachably connects the first connection body 11 and the second connection body 21 through the first connection hole 111 and the second connection hole 211, so as to detachably connect the first connection unit 1 and the second connection unit 2, and meanwhile, after the first connection unit 1 and the second connection unit 2 are detachably connected, the first water path connection hole 112 and the second water path connection hole 212 are communicated with each other and then communicated with a cooling water channel, so as to provide cooling water for the heating element; and the first air passage 113 and the second air passage 213 are communicated with each other, and are subsequently communicated with a gas (including compressed gas) passage to provide protective gas for a blowing assembly and the like.
Therefore, the connecting device of the embodiment can realize the detachable connection of the first connecting unit 1 and the second connecting unit 2 through a pin and other devices, further realize the quick assembly, disassembly and replacement of the collimating unit 100 or the focusing unit 200 and the nozzle unit 300 connected with the collimating unit or the focusing unit 200, and realize the quick switching of water and gas signals through a water path connecting hole and a gas path channel as required;
meanwhile, in this embodiment, there may be a plurality of the first connection holes 111, the first water path connection holes 112, the first air path channel 113, the second connection holes 211, the second water path connection holes 212, and the second air path channel 213, so that, as shown in fig. 3c, when the angle of the laser L after being emitted through the focusing unit 200 needs to be adjusted, the first connection holes 111 and the second connection holes 211 at different positions may be connected, so that the focusing unit 200 deflects relative to the collimating unit 100, and further, the emitting angle of the laser L deflects relative to the incident angle when being incident into the collimating unit 100, so as to better meet the requirements of different laser processing processes such as cutting, welding, brazing, and deposition, and greatly improve the working efficiency.
Example 2:
the present embodiment is different from embodiment 1 only in that, as shown in fig. 3a-3b, the first connecting body 11 is further annularly provided with a first detecting hole 114 for installing a first position detecting device; and/or a second detection hole 214 for installing a second position detection device is further formed in the second connecting main body 21 in the annular direction; when connecting during first connecting piece 1 and second connecting piece 2, detect the distance of first connecting piece 1 and second connecting piece 2 through first position detection device and/or second position detection device, and both produce feedback signal when the distance satisfies the preset condition to remind operating personnel first connecting piece 1 and second connecting piece 2 to connect in place, can be convenient for operating personnel to master the installation condition between them fast from this, be convenient for raise the efficiency. In this embodiment, the first position detection device and/or the second position detection device is a photoelectric sensing device such as an infrared sensor.
Meanwhile, as shown in fig. 4, a first annular groove 115 for installing a first sealing element is circumferentially formed in one surface of the first connecting body 11 facing the second connecting body 21; and/or a second annular groove 215 for installing a second sealing element is circumferentially arranged on one surface of the second connecting main body 21 facing the first connecting main body 11, and the first sealing element and/or the second sealing element are made of rubber and the like, so that when the first connecting piece 1 and the second connecting piece 2 are connected, a gap between the first sealing element and the second sealing element is sealed through the first sealing element and/or the second sealing element, and dust or foreign matters are prevented from entering the water path connecting hole and the air path channel.
Example 3:
this embodiment provides a laser head, as shown in fig. 5a, the laser head includes: an optical fiber 3, an optical fiber coupler 4, a collimating unit 100, a focusing unit 200, a nozzle unit 300, and the connecting device for quick assembly and disassembly of a laser head described in embodiment 1 or 2.
Wherein the collimating unit 100 includes: a collimating lens barrel 5 connected to the optical fiber coupler 4; a transmission part 14, one end of which is connected with the collimating lens barrel 5, the other end of which is connected with the first connecting unit 1 of the connecting device, and the central axis of the collimating lens barrel 5 is nearly perpendicular to the central axis of the transmission part 14; a collimating lens 6 and a first reflecting lens 7 both disposed inside the collimating lens barrel 5;
the focusing unit 200 includes: a focusing lens barrel 8 having one end connected to the second connection unit 2 of the connection device and the other end connected to the nozzle unit 300; a second reflector 9 and a protective lens 10, both disposed inside the focusing barrel 8;
the transmission part 14 is detachably connected with the focus lens barrel 8 through the first connection unit 1 and the second connection unit 2, so that the first connection hole 111 and the second connection hole 211 of the first connection unit 1 and the second connection unit 2 can be quickly connected, and the quick communication of the water path and the air path can be realized through the corresponding matching of the first water path connection hole 112, the first air path 113, the second water path connection hole 212 and the second air path 213.
The optical fiber 3 is connected with the optical fiber coupler 4, the laser L passes through the optical fiber 3, expands the beam through the optical fiber coupler 4, enters the collimating lens barrel 5, is parallel to the light through the collimating lens 6, is emitted at a collimation angle after being reflected by the first reflecting lens 7, enters the transmission part 14 and the focusing lens barrel 8, is reflected by the second reflecting lens 9, is focused through the protective lens 10, and is finally emitted through the nozzle unit 300 to form a laser spot P.
The light spots P with different diameters can be formed by changing parameters such as the optical fiber core diameter, the focal length of the collimating lens 6, the focal length of the second reflecting mirror 9 and the like, the requirements of different laser processing processes are further met, for example, the diameter of the light spot P formed when the optical fiber core diameter is 100 micrometers, the focal length of the collimating lens 6 is 100mm, and the focal length of the second reflecting mirror 9 is 100mm is 100/100 x 100 micrometers which is 100 micrometers, namely 0.1mm, the laser cutting device is suitable for laser cutting, and the diameter of the light spot P is 0.25mm when only the focal length of the second reflecting mirror 9 is changed into 250mm, and the laser cutting device can be used for common;
if the diameter of the optical fiber core is 200 μm, the focal length of the collimating lens 6 is 150mm, and the focal length of the second reflecting mirror 9 is 300mm, the diameter of the formed light spot P is 300/150 × 200 um-400 μm, namely 0.4mm, which is suitable for laser welding, and the diameter of the light spot P is 0.8mm when the focal length of the second reflecting mirror 9 is only changed to 600mm, which can be used for general laser filler wire welding;
further, when the optical fiber core diameter is 1000um, the focal length of the collimator lens 6 is 150mm, and the focal length of the second reflecting mirror 9 is 300mm, the diameter of the spot P formed is 300/150 × 1000um ═ 2000 μm, that is, 2.0mm, which is suitable for laser brazing, and when the focal length of the second reflecting mirror 9 is only changed to 600mm, the diameter of the spot P is changed to 4.0mm, which is applicable to general laser welding.
Meanwhile, as shown in fig. 5b, since the transmission part 14 is detachably connected to the focus lens barrel 8 through the first connecting member 1 and the second connecting member 2, the focus lens barrel 8 of the focus unit 200 and the second connecting member 2 connected thereto can be detached separately, and then detachably connected to the other component 12 (such as a fixed profiling structure) connected to the first connecting unit 1 through the first connecting unit 1 and the second connecting unit 2, so as to meet the requirements of different laser processing processes.
Therefore, the first connecting piece 1 and the second connecting piece 2 in the embodiment can be made into standard pieces, the focusing unit 200 with different parameter settings (such as the focal length of the second reflector 9) and the nozzle unit 300 connected with the focusing unit can be replaced only by the detachable first connecting unit 1 and the detachable second connecting unit 2, or the collimating unit 100 with different parameter settings (such as the focal length of the collimating lens 6) can be replaced, so that the quick disassembly and replacement of different laser heads can be realized, the requirements of different laser processing technologies such as cutting, welding, brazing, cladding and the like can be met, and the working efficiency can be greatly improved.
Example 4:
this embodiment differs from embodiment 3 only in that, as shown in fig. 5a, the laser head in this embodiment further includes: and a rotating connector 13 connected to the outer wall surface of the side portion of the collimating lens barrel 5 and coaxially connected to the transmission portion 14, wherein the transmission portion 14 can rotate around the central axis of the rotating connector 13, so as to adjust the deflection positions of the focusing unit 200 and the nozzle unit 300 connected to the transmission portion 14, thereby better meeting the actual processing requirements.
Example 5:
the difference between this embodiment and embodiment 4 is that the optical fiber 3 in this embodiment is a multi-clad optical fiber, and the laser beams passing through different claddings can be emitted simultaneously or non-simultaneously, so that the laser energy can be more finely controlled by matching different claddings, thereby better controlling the laser processing quality.
Specifically, as shown in fig. 6, the optical fiber 3 in this embodiment includes a first optical fiber layer 101, a second optical fiber layer 102, a third optical fiber layer 103, and a fourth optical fiber layer 104, which are concentrically arranged from inside to outside;
if the core diameter of the first optical fiber layer 101 is 100 μm, the core diameter of the second optical fiber layer 102 is 200 μm, the core diameter of the third optical fiber layer 103 is 300 μm, the core diameter of the fourth optical fiber layer 104 is 400 μm, the focal length of the collimating lens 6 is 100 μm, the focal length of the second reflecting mirror 9 is 100 μm, and the size of the spot P is 100/100 × 100 μm-100 μm, that is, 0.1mm when only the first optical fiber layer 101 emits light, the laser cutting method can be used for laser cutting; if the first optical fiber layer 101 and the third optical fiber layer 103 emit light simultaneously, two light spots appear, the diameter of the light spot on the inner layer is 100 μm, the diameter of the light spot on the outer layer is 100/100 × 300 μm-300 μm, namely 0.3mm, the laser welding device can be used for laser welding, and the two light spots can increase a molten pool of metal melting and reduce defects such as welding spatter;
if the focal length of the second reflector 9 is changed to 600mm, and other parameters are not changed, the size of the spot P is 600/100 × 100 μm to 600 μm, that is, 0.6mm when only the first optical fiber layer 101 emits light, which can be used for laser welding, and the diameter of the spot P is 600/100 × 400 μm to 2400 μm, that is, 2.4mm when only the fourth optical fiber layer 104 emits light, which can be used for laser welding.
Example 6:
this embodiment differs from embodiment 3 or 4 or 5 only in that the laser head further comprises:
the dust removal unit is arranged inside the focusing lens barrel 8 of the focusing unit 200, is positioned below the protective lens 10, and is used for forming a positive pressure environment by introducing compressed gas and removing dust/welding slag generated in the laser processing process so as to better protect the protective lens 10, reduce the influence of external processing smoke dust and prolong the service life;
and/or the robot is connected with the collimation unit 100 to drive the laser head to integrally complete three-dimensional five-axis linkage and other movements so as to meet the requirement of machining of a complex structure;
and/or a focus measuring unit (such as a CCD camera and the like) which is arranged coaxially with the second reflecting mirror 9 and is used for acquiring the light spot distance and/or the light spot diameter size and displaying the light spot distance and/or the light spot diameter size so as to facilitate field debugging;
and/or a dustproof cover plate for closing the open port of the separated first connection unit 1 and/or second connection unit 2 to prevent dust and foreign matters from entering.
Example 7:
the present embodiment provides a laser processing apparatus, which includes: the laser head of any of embodiments 3 to 5.
In summary, in the invention, the first connecting unit and the second connecting unit can be used for realizing the rapid disassembly and assembly of the laser head, and the rapid switching of water and gas signals can be realized through the water path connecting hole and the gas path channel according to the requirement, and further, the light spots with different diameters can be formed by changing the parameters such as the optical fiber core diameter, the focal length of the collimating lens, the focal length of the second reflecting mirror and the like, so that the requirements of different laser processing processes such as cutting, welding, brazing, cladding and the like can be better met, and the working efficiency can be greatly improved.
It should be noted that the technical features of the above embodiments 1 to 7 can be arbitrarily combined, and the technical solutions obtained by combining the technical features belong to the scope of the present application. And in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A connecting device for quickly disassembling and assembling a laser head is characterized by comprising a first connecting unit, a second connecting unit and a third connecting unit, wherein the first connecting unit is connected with a collimation unit of the laser head; and the second connecting unit is connected with the focusing unit of the laser head, and the laser head is disassembled and assembled through the detachable connection of the first connecting unit and the second connecting unit.
2. The connection device of claim 1, wherein the first connection unit comprises: the first connecting body is annularly provided with a first connecting hole; the second connection unit includes: the second connecting main body is annularly provided with a second connecting hole; the fastener is detachably connected with the first connecting body and the second connecting body through the first connecting hole and the second connecting hole.
3. The connection device of claim 2, wherein the first connection unit further comprises: a first waterway connecting hole and a first waterway channel which are annularly arranged on the first connecting body; the second connection unit further includes: a second water path connecting hole and a second air path channel which are annularly arranged on the second connecting main body; after the first connecting unit and the second connecting unit are detachably connected, the first waterway connecting hole and the second waterway connecting hole are communicated with each other; and the first air channel and the second air channel are communicated with each other.
4. The connecting device of claim 3, wherein there are a plurality of the first connecting holes, the first waterway connecting holes, the first air passage, the second connecting holes, the second waterway connecting holes, and the second air passage.
5. The connecting device according to claim 2, wherein the first connecting body further comprises a first detecting hole for installing a first position detecting device; and/or a second detection hole for installing a second position detection device is further formed in the second connecting main body in the annular direction; when the first connecting piece and the second connecting piece are connected, the distance between the first connecting piece and the second connecting piece is detected through the first position detection device and/or the second position detection device, and a feedback signal is generated when the distance between the first connecting piece and the second connecting piece meets a preset condition so as to remind an operator that the first connecting piece and the second connecting piece are connected in place.
6. The connecting device according to claim 2, wherein a first annular groove for mounting a first sealing element is annularly formed on one surface of the first connecting body facing the second connecting body; and/or a second annular groove used for installing a second sealing element is formed in the circumferential direction on one surface, facing the first connecting main body, of the second connecting main body.
7. A laser head, comprising: a collimating unit, a focusing unit, a nozzle unit, and the connecting device for quick mounting and dismounting of laser heads of any one of claims 1 to 6;
the collimating unit includes: a collimating lens barrel; one end of the transmission part is connected with the collimating lens cone, the other end of the transmission part is connected with the first connecting unit of the connecting device, and the central axis of the collimating lens cone is approximately vertical to the central axis of the transmission part; the collimating lens and the first reflecting lens are arranged in the collimating lens barrel;
the focusing unit includes: one end of the focusing lens cone is connected with the second connecting unit of the connecting device, and the other end of the focusing lens cone is connected with the nozzle unit; a second reflector and a protective lens, both disposed inside the focusing barrel;
the transmission part is detachably connected with the focusing lens barrel through the first connecting unit and the second connecting unit.
8. The laser head of claim 7 wherein the laser head further comprises: and the rotating connecting piece is connected with the outer wall surface of the side part of the collimating lens barrel and is coaxially connected with the transmission part, and the transmission part can rotate around the central axis of the rotating connecting piece.
9. The laser head of claim 7 wherein the laser head further comprises:
the dust removal unit is arranged in the focusing lens barrel, is positioned below the protective lens and is used for forming a positive pressure environment by introducing compressed gas;
and/or the robot is connected with the collimation unit so as to drive the laser head to move integrally;
and/or the focus measuring unit is coaxially arranged with the second reflecting mirror and is used for acquiring the light spot distance and/or the light spot diameter and displaying the light spot distance and/or the light spot diameter so as to facilitate field debugging;
and/or a dustproof cover plate for closing the open port of the separated first connecting unit and/or second connecting unit.
10. A laser machining apparatus including the laser head of any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010923898.5A CN111906437B (en) | 2020-09-04 | 2020-09-04 | Connecting device for quickly disassembling and assembling laser head, laser head and laser processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Publication date |
|---|---|
| CN111906437B (en) | 2022-09-13 |
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