CN221210232U - Integrated collimation output head and laser handheld welding gun - Google Patents

Abstract

The utility model relates to an integrated collimation output head and a laser handheld welding gun. The collimating lens is encapsulated in the light path channel. When the collimating lens is installed on the laser handheld welding gun, only the integral collimating output head is installed and fixed on the installation position of the laser handheld welding gun, compared with the method of independently installing the collimating lens, the assembly error is reduced, the parallelism of light beams is improved, the phenomenon that the optical axis of laser emitted after being refracted by the collimating lens and then passing through the reflecting mirror and the focal lens is not coaxial with the gun barrel and the nozzle is avoided, the laser irradiates the gun barrel or the nozzle, the gun barrel or the nozzle is heated, and the welding effect is influenced and the safety of operators is threatened is avoided.

Description

Integrated collimation output head and laser handheld welding gun

Technical Field

The utility model relates to the technical field of laser welding, in particular to an integrated collimation output head and a laser handheld welding gun.

Background

The laser welding is a high-efficiency precise welding method which uses a laser beam with high energy density as a heat source, is mainly used for welding thin-wall materials and low-speed welding, and the handheld welding is used for welding by melting the laser with high energy density on the surface of a plate through shaping a space light path.

The existing hand-held welding is different from the gun barrel and the nozzle in the optical axis of laser emitted after being refracted by the collimating lens and then passing through the reflecting lens and the focal lens due to errors such as installation of the collimating lens in the welding process, and the laser irradiates the gun barrel or the nozzle, so that the gun barrel or the nozzle is scalded, the welding effect is affected, and the safety of operators is threatened.

Disclosure of utility model

First, the technical problem to be solved

In view of the above-mentioned drawbacks and shortcomings of the prior art, the present utility model provides an integrated collimating output head and a laser handheld welding gun, which solves the technical problem that the optical axis of the laser emitted after being refracted by the collimating lens and then passing through the reflecting mirror and the focal lens is not coaxial with the gun barrel and the nozzle due to the installation error of the collimating lens.

(II) technical scheme

In order to achieve the above object, an integrated collimating output head of the present utility model includes:

The guide mechanism is internally provided with a light path channel along the extending direction of the guide mechanism; and

And the collimating lens is encapsulated in the light path channel.

Optionally, the collimating lens is fixedly disposed at the first end of the guiding mechanism through an elastic sealing component.

Optionally, the first end of the guiding mechanism is provided with a fixing groove, the elastic sealing component is arranged in the fixing groove, and the elastic sealing component is abutted to the collimating lens.

Optionally, the outer wall of the guiding mechanism is provided with one or more air guide grooves, and the air guide grooves extend along the length direction of the guiding mechanism.

Optionally, the device further comprises a fixing mechanism, the guiding mechanism penetrates through the fixing mechanism, the first end of the guiding mechanism is provided with the collimating lens, the second end of the guiding mechanism extends out of the second end of the fixing mechanism, and the air guide groove is formed in the outer wall of the part, located in the fixing mechanism, of the guiding mechanism.

Optionally, a first air inlet hole is formed in the fixing mechanism, and the air guide groove is communicated with an air source through the first air inlet hole.

Optionally, a first exhaust hole is formed in the fixing mechanism, and the air guide groove is communicated with the first exhaust hole.

Optionally, a second air inlet hole and a second air outlet hole are formed in the guide mechanism, and two ends of the second air inlet hole and two ends of the second air outlet hole are respectively communicated with the air guide groove and the light path channel.

Optionally, a sealing locking member is arranged between the guiding mechanism and the fixing mechanism.

Optionally, the integrated collimating output head further includes an infrared temperature sensor, and the infrared temperature sensor is disposed on the fixing mechanism.

The utility model further provides a laser handheld welding gun, which comprises a handle, a gun body and the integrated collimation output head, wherein the integrated collimation output head is arranged in the handle.

Optionally, a fixing plate is arranged on the guiding mechanism, and the fixing plate is in sealing connection with the end part of the handle.

(III) beneficial effects

The collimating lens is packaged in the light path channel, when the collimating lens is installed on the laser handheld welding gun, only the integral collimating output head is required to be installed and fixed on the installation position of the laser handheld welding gun, compared with the collimating lens which is independently installed, the assembly error is reduced, the parallelism of light beams is improved, the situation that the optical axis of laser emitted after being refracted by the collimating lens and then passing through the reflecting mirror and the focal lens is different from the axis of the gun barrel or the nozzle is avoided, the laser irradiates the gun barrel or the nozzle, the gun barrel or the nozzle is heated, the welding effect is affected, and the safety of operators is threatened is improved.

Drawings

FIG. 1 is a schematic diagram of an integrated collimating output head of the present utility model;

FIG. 2 is a cross-sectional view at A in FIG. 1;

FIG. 3 is a schematic structural view of a fixing mechanism of an integrated alignment output head according to the present utility model;

fig. 4 is a schematic structural view of a laser hand-held welding gun according to the present utility model.

[ Reference numerals description ]

100: An optical path channel; 101: a collimating optic; 102: a mounting hole;

201: a guide mechanism; 2010: an air guide groove; 2012: a fixing groove; 2013: an air outlet hole; 2014: an elastic sealing assembly; 202: a fixing plate; 203: an air tap; 204: a control circuit board; 2041: an infrared temperature sensor; 205: a fixing mechanism; 206: sealing and locking piece;

301: a handle.

Detailed Description

The utility model will be better explained for understanding by referring to the following detailed description of the embodiments in conjunction with the accompanying drawings. Wherein references herein to "upper", "lower", "etc. are made with reference to the orientation of fig. 1.

While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

As shown in fig. 1-4, the utility model provides an integrated collimation output head, which comprises a guide mechanism 201 and a collimation lens 101, wherein an optical path channel 100 for laser propagation is arranged in the guide mechanism 201 along the extending direction of the guide mechanism 201, and one end of the guide mechanism 201 is used for being connected with an optical fiber armoured cable to realize laser transmission. The collimating lens 101 is packaged in the light path channel 100 in advance, when the collimating lens 101 is installed on the laser handheld welding gun, only the integral collimating output head is required to be installed and fixed on the installation position of the laser handheld welding gun, compared with the collimating lens 101 which is independently installed, assembly errors are reduced, the parallelism of light beams is improved, the situation that the optical axis of laser emitted after being refracted by the collimating lens and then passing through the reflecting mirror and the focal lens is different from the axis of the gun barrel or the nozzle is avoided, the laser irradiates the gun barrel or the nozzle, the gun barrel or the nozzle is heated, and the welding effect is affected and the safety of operators is threatened is avoided.

As shown in fig. 1 and 2, the collimating lens 101 is fixedly disposed at the first end of the guiding mechanism 201 through the elastic sealing component 2014, so as to realize a closed interval from the optical fiber crystal head to the collimating output. Further, the first end of the guiding mechanism 201 is close to the output end of the laser light source, the first end of the guiding mechanism 201 is provided with a fixing groove 2012, the elastic sealing component 2014 is arranged in the fixing groove 2012, the collimating lens 101 is abutted with the elastic sealing component 2014, and the collimating lens 101 is fixed in a stepped hole formed in the end of the guiding mechanism 201 through the elastic sealing component 2014. The elastomeric seal assembly 2014 is preferably an elastomeric compression ring that further reduces assembly errors of the collimating lens 101.

As shown in fig. 3, the integrated collimating output head further includes a fixing mechanism 205, and the guiding mechanism 201 is disposed through the fixing mechanism 205, and a second end of the guiding mechanism 201 extends from an end surface of the second end of the fixing mechanism 205, for connecting the optical fiber cable sheath. One or more air guide grooves 2010 are formed in the outer wall of the part, located in the fixing mechanism 205, of the guide mechanism 201, the plurality of air guide grooves 2010 extend along the length direction of the guide mechanism 201, two ends of the part, located in the fixing mechanism 205, of the guide mechanism 201 are communicated, and air flows along the air guide grooves 2010 to dissipate heat of the guide mechanism 201.

In the first embodiment, when the guide mechanism 201 is mounted in the fixing mechanism 205, only the wall surface of the notch portion of the air guide groove 2010 is in sealing contact with the inner wall of the fixing mechanism 205 by the guide mechanism 201, and the air passage is formed by capping the notch of the air guide groove 2010 by the inner wall of the fixing mechanism 205. In the second embodiment, the outer walls of the guiding mechanism 201 are in sealing contact with the inner wall of the fixing mechanism 205, so that the notch of the air guide groove 2010 is covered by the inner wall of the fixing mechanism 205 to form an air passage, and meanwhile, the heat exchange efficiency between the fixing mechanism 205 and the guiding mechanism 201 can be increased, and the heat dissipation effect can be improved. In the third embodiment, the air guide groove 2010 is formed in the guide mechanism 201 to form a complete air passage, and the fixing mechanism 205 dissipates heat through heat exchange with the guide mechanism 201.

Specifically, when the low-temperature gas flows through the air passage, the guiding mechanism 201 and the fixing mechanism 205 directly or indirectly exchange heat with the low-temperature gas, and the collimating lens 101 indirectly exchanges heat with the low-temperature gas through the guiding mechanism 201, so that the temperatures of the guiding mechanism 201, the collimating lens 101 and the fixing mechanism 205 are effectively reduced. The extending direction of the air guide groove 2010 may be one or more, and may be a spiral extending direction, a coil-like turning extending direction, a straight extending direction, or the like, which is not limited herein, as long as the air guide groove 2010 can communicate with both ends of the portion of the guide mechanism 201 located in the fixing mechanism 205.

As shown in fig. 1, a portion of the fixing mechanism 205 near the first end of the air guide groove 2010 is provided with a first air inlet hole, and the first air inlet hole is connected with an output pipeline of an air source through an air tap 203, so that the quick assembly and disassembly are facilitated. The first end of the air guide groove 2010 is communicated with the first air inlet hole.

In one embodiment, the light path channel 100 is communicated with the first air inlet hole, and air is supplied to the light path channel 100 and the air guide groove 2010 through the first air inlet hole; in another embodiment, the guide mechanism 201 is provided with a mounting hole 102 communicating with the light path channel 100, for mounting the stripper, the mounting hole 102 is communicated with the first air inlet hole, and air is supplied to the mounting hole 102 and the air guide groove 2010 through the first air inlet hole. In another embodiment, when a plurality of air guide grooves are provided, a flow equalizing mechanism is provided between the first air inlet hole and the plurality of air guide grooves 2010, and air is evenly distributed into each air guide groove 2010 through the flow equalizing mechanism, so that the flow and the flow velocity input into each air guide groove 2010 are equal, and the heat dissipation effect is improved.

The fixing mechanism 205 is provided with a first exhaust hole, the second end of the air guide groove 2010 is communicated with the first exhaust hole, and the first exhaust hole is communicated with an air passage inside the laser handheld welding gun. The cooling from the air source to the integrated collimation output head is realized, the welding head body and the lower protective lens of the laser handheld welding gun are cooled, and the protective gas can be provided for the welding process by using the air guide groove 2010 and the air passage inside the laser handheld welding gun when the protective gas is used as cooling gas, so that the air is multipurpose.

Further, the guide mechanism 201 is provided with a second air inlet hole and a second air outlet hole 2013, the second air inlet hole, the optical path channel 100, the second air outlet hole 2013 and the air guide groove 2010 are sequentially communicated, which are not shown in the figure, or the second air inlet hole, the mounting hole 102, the second air outlet hole 2013 and the air guide groove 2010 are sequentially communicated, see fig. 2. Preferably, the second air inlet and the second air outlet 2013 are both disposed in the air guide slot 2010. The low-temperature gas enters the light path channel 100 or the mounting hole 102, flows through the light path channel 100 and then flows out into the air guide groove 2010 to cool the internal mold stripper, so that an air channel with one inlet and one outlet is reserved in the internal mold stripper except the air guide groove 2010 on the outer wall of the guide mechanism 201 to cool the internal mold stripper.

As shown in fig. 3, a sealing locking member 206 is disposed between the guide mechanism 201 and the second end of the fixing mechanism 205, for fixing the guide mechanism 201 to the fixing mechanism 205, and sealing the end surface of the fixing mechanism 205 to prevent impurities from entering the gap between the fixing mechanism 205 and the guide mechanism 201.

As shown in fig. 3, the integrated collimating output head further includes an infrared temperature sensor 2041, the infrared temperature sensor 2041 is disposed on the fixing mechanism 205, the infrared temperature sensor 2041 is connected with the control circuit board 204 disposed in the laser handheld welding gun, or the control circuit board 204 is directly integrated on the outer wall of the fixing mechanism 205, and the infrared temperature sensor 2041 is welded on the control circuit board 204. The infrared temperature sensor 2041 uses the radiant heat effect to cause a temperature rise after the detection device receives radiant energy, thereby changing the temperature dependent performance of the sensor. Through adding infrared temperature sensor 2041, in man-machine operation's in-process, when the body switch of laser handheld welder is held to the hand, the position of palm can paste near infrared temperature sensor 2041, only can the laser handheld welder come out light when infrared temperature sensor 2041 detects the hand temperature, improves the use factor of safety.

Further, as shown in fig. 4, the utility model further provides a laser handheld welding gun, which comprises a handle 301, a gun body and the integrated collimation output head, wherein the integrated collimation output head is installed in the handle 301, and the second end of the guiding mechanism 201 extends out from the end face of the handle 301, so that the optical fiber armoured cable can be conveniently connected. Specifically, the handle 301 is provided with a mounting groove communicated with the end of the handle 301, and when the collimating lens 101 is mounted, only the integral collimating output head is required to be inserted into the mounting groove, so that the position of the collimating lens 101 is not required to be adjusted, and the assembly error of the collimating lens 101 is reduced. Further, the fixing mechanism 205 or the guide mechanism 201 is provided with a fixing plate 202, and the fixing plate 202 is hermetically connected to the end of the handle 301, so that foreign matters are prevented from entering the gap between the fixing mechanism 205 and the handle 301.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.

Claims (12)

1. An integrated collimating output head, comprising:

A guide mechanism (201), wherein an optical path channel (100) is arranged in the guide mechanism (201) along the extending direction of the guide mechanism (201); and

-A collimating optic (101), the collimating optic (101) being encapsulated within the optical path channel (100).

2. The integrated collimating output head of claim 1, wherein the collimating lens (101) is fixedly disposed at a first end of the guiding mechanism (201) by an elastic sealing assembly (2014).

3. The integrated collimating output head of claim 2, wherein a first end of the guiding mechanism (201) is provided with a fixing groove (2012), the elastic sealing component (2014) is disposed in the fixing groove (2012), and the elastic sealing component (2014) abuts against the collimating lens (101).

4. The integrated alignment output head according to any of claims 1-3, wherein one or more air guide grooves (2010) are formed in an outer wall of the guide mechanism (201), and the air guide grooves (2010) extend along a length direction of the guide mechanism (201).

5. The integrated alignment output head of claim 4, further comprising a securing mechanism, wherein the guide mechanism (201) is disposed through the securing mechanism (205), wherein a first end of the guide mechanism (201) is provided with an alignment lens, wherein a second end of the guide mechanism (201) extends from the second end of the securing mechanism (205), and wherein the air guide slot (2010) is disposed on an outer wall of a portion of the guide mechanism within the securing mechanism (205).

6. The integrated collimation output head as recited in claim 5, wherein a first air inlet hole is formed on the fixing mechanism (205), and the air guide groove (2010) is communicated with an air source through the first air inlet hole.

7. The integrated alignment output head according to claim 5, wherein the fixing mechanism (205) is provided with a first exhaust hole, and the air guide groove (2010) is communicated with the first exhaust hole.

8. The integrated alignment output head according to claim 5, characterized in that a sealing lock (206) is provided between the guiding mechanism (201) and the fixing mechanism (205).

9. The integrated collimating output head of claim 5, further comprising an infrared temperature sensor (2041), said infrared temperature sensor (2041) being disposed on said securing mechanism (205).

10. The integrated collimation output head as recited in claim 4, characterized in that a second air inlet hole and a second air outlet hole (2013) are formed in the guide mechanism (201), and two ends of the second air inlet hole and the second air outlet hole (2013) are respectively communicated with the air guide groove (2010) and the light path channel (100).

11. A laser hand-held welding gun, characterized in that the laser hand-held welding gun comprises a handle (301), a gun body and an integrated collimation output head according to any one of claims 1-10, which is arranged in the handle (301).

12. The laser hand-held welding gun according to claim 11, characterized in that a fixing plate (202) is arranged on the guiding mechanism (201), and the fixing plate (202) is connected with the end part of the handle (301) in a sealing way.