CN212682795U - Novel handheld laser welding gun - Google Patents
Novel handheld laser welding gun Download PDFInfo
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- CN212682795U CN212682795U CN202021031496.6U CN202021031496U CN212682795U CN 212682795 U CN212682795 U CN 212682795U CN 202021031496 U CN202021031496 U CN 202021031496U CN 212682795 U CN212682795 U CN 212682795U
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Abstract
The utility model discloses a novel handheld laser welding gun, which relates to the technical field of laser welding, and comprises a welding gun shell, wherein the tail end of the welding gun shell is connected with a laser, the front end of the welding gun shell is provided with a welding head, a laser channel is arranged in the welding gun shell, and a collimating mirror unit, a reflecting mirror unit and a focusing mirror unit are sequentially arranged along the laser channel in the welding gun shell; at least one of the collimating mirror unit, the reflecting mirror unit and the focusing mirror unit is connected with a vibrating device, and the vibrating device is used for driving the collimating mirror unit, the reflecting mirror unit or the focusing mirror unit to move. The utility model discloses a vibrating device drives collimating mirror unit, speculum unit or focusing mirror unit motion to can adjust the laser focus point, satisfy multiple welding demand.
Description
Technical Field
The utility model relates to a laser welding technical field especially relates to a novel handheld laser welder.
Background
Laser welding is an efficient precision welding method using a laser beam with high energy density as a heat source. Laser welding is one of the important aspects of the application of laser material processing techniques. The 20 th century and the 70 th century are mainly used for welding thin-wall materials and low-speed welding, and the welding process belongs to a heat conduction type, namely, the surface of a workpiece is heated by laser radiation, the surface heat is diffused inwards through heat conduction, and the workpiece is melted to form a specific molten pool by controlling parameters such as the width, the energy, the peak power, the repetition frequency and the like of laser pulses. Due to the unique advantages, the welding method is successfully applied to the precise welding of micro and small parts.
When small-batch irregular welding seams are welded, a handheld laser welding gun is needed to be used for welding workpieces. The laser welding gun generally comprises a gun body, wherein a laser outlet is formed in the front end of the gun body, the rear end of the gun body is connected with a laser generator through an optical cable, and a collimating mirror unit, a reflecting mirror unit and a focusing mirror unit are sequentially arranged in the gun body. However, the position of the laser focus point of the welding head of the existing handheld laser welding gun is difficult to adjust, and a good welding effect is difficult to achieve according to different working requirements.
Therefore, it is desirable to provide a novel handheld laser welding gun to solve the above problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel handheld laser welder to solve the problem that above-mentioned prior art exists, drive through vibrating device collimating mirror unit, speculum unit or focusing mirror unit motion, thereby can adjust the laser focus point, satisfy multiple welding demand.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a novel handheld laser welding gun, which comprises a welding gun shell, wherein the tail end of the welding gun shell is connected with a laser, the front end of the welding gun shell is provided with a welding head, a laser channel is arranged in the welding gun shell, and a collimating mirror unit, a reflecting mirror unit and a focusing mirror unit are sequentially arranged along the laser channel in the welding gun shell; at least one of the collimating mirror unit, the reflecting mirror unit and the focusing mirror unit is connected with a vibrating device, and the vibrating device is used for driving the collimating mirror unit, the reflecting mirror unit or the focusing mirror unit to move.
Preferably, the welding gun shell comprises a handle, a reflector cavity and a front cavity which are connected in sequence; the tail end of the handle is provided with a QBH seat used for being connected with the laser, and the collimating mirror unit is arranged at the front end of the inner cavity of the handle; the reflector cavity is arranged at the front end of the handle, and the reflector unit is arranged in the reflector cavity; the front cavity is mounted at the front end of the reflector cavity, the focusing mirror unit is mounted in the front cavity, and the welding head is mounted at the front end of the front cavity.
Preferably, the collimating lens unit comprises a collimating lens and a collimating lens seat, the collimating lens seat is mounted at the front end of the inner cavity of the handle, and the collimating lens is mounted on the collimating lens seat through the vibrating device.
Preferably, the reflector cavity comprises a main cavity body and a cavity cover, the cavity cover is detachably mounted on the side of the main cavity body, the reflector unit comprises a reflector, and the reflector unit is mounted in the reflector cavity through the vibrating device.
Preferably, the focusing mirror unit comprises a focusing mirror, the focusing mirror is mounted at the tail end of the front cavity through the vibrating device, a protective mirror is mounted in front of the focusing mirror, and a first heat insulation block is mounted in front of the protective mirror.
Preferably, the welding head is mounted at the front end of the front cavity through a welding head base, and a second heat insulation block is mounted on the welding head base.
Preferably, an infrared sensor and a protection switch are arranged on the outer side of the front end of the front cavity, and a switch is connected to the handle.
Preferably, the reflecting mirror further comprises a control board, and the control board is installed in the reflecting mirror cavity.
Preferably, the vibration device comprises an electromagnetic coil fixing seat, an electromagnetic coil is arranged in the electromagnetic coil fixing seat, a magnet is arranged in the electromagnetic coil and used for being connected with the reflecting mirror, the collimating mirror or the focusing mirror, the reflecting mirror, the collimating mirror or the focusing mirror are connected with the top of the electromagnetic coil fixing seat through reeds, and the electromagnetic coil is connected with a signal generator through a signal amplifying circuit.
Preferably, the vibration device of the reflector unit is a swing device, the swing device comprises a wind wheel and a connecting rod, the wind wheel is installed in the reflector cavity, and the wind wheel is connected with the reflector through the connecting rod.
The utility model discloses for prior art gain following technological effect:
1. the collimating mirror unit, the reflecting mirror unit or the focusing mirror unit are driven to move through the vibrating device, so that the laser focusing point can be adjusted, and various welding requirements are met;
2. the infrared sensor is arranged to sense the distance between the welding head and an object to be welded, and when the distance reaches a specified distance, the welding gun is started to work, so that the welding gun is prevented from being started accidentally, and the safety is improved;
3. the front of the focusing mirror is provided with the protective mirror, so that the focusing mirror can be protected, and dust can be prevented from falling into the focusing mirror.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the internal structure of a novel handheld laser welding gun;
FIG. 2 is a cross-sectional view of a novel hand-held laser welding gun;
FIG. 3 is a schematic structural diagram of a vibration device;
FIG. 4 is a top view of the vibration device;
FIG. 5 is a side view of the vibration apparatus;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a schematic structural diagram of a swing device;
FIG. 8 is a schematic view of the mirror movement of a hand-held laser welding gun;
FIG. 9 is a schematic view of the collimator lens movement of a hand-held laser welding gun;
FIG. 10 is a schematic view of the movement of the focusing lens of the hand-held laser welding gun;
FIG. 11 is a schematic diagram of the operation of the vibration apparatus;
FIG. 12 is a schematic diagram of the vibration device with a signal generator connected thereto;
in the figure, 1 is a welding head, 2 is a welding head base, 3 is a second heat insulation block, 4 is a calibration block, 5 is a focusing lens, 6 is a vibration device, 61 is a solenoid coil fixing seat, 62 is a solenoid coil, 63 is a reed, 64 is a magnet, 65 is a signal amplification circuit, 66 is a signal generator, 7 is a reflector, 8 is a switch, 9 is a collimator support, 10 is a handle, 11 is a QBH seat, 12 is a collimator lens, 13 is a collimator lens seat, 14 is a cavity cover, 15 is a reflector cavity, 16 is a control board, 17 is a protective mirror frame, 18 is a protective lens seat, 19 is a first heat insulation block, 20 is an infrared sensor, 21 is a protective switch, 22 is a laser, 23 is a wind wheel, and 24 is a connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example one
As shown in fig. 1-5, the embodiment provides a novel handheld laser welding gun, which includes a welding gun housing, wherein a laser 22 is connected to a tail end of the welding gun housing, a welding head 1 is arranged at a front end of the welding gun housing, a laser channel is arranged in the welding gun housing, and a collimating mirror unit, a reflecting mirror unit and a focusing mirror unit are sequentially arranged in the welding gun housing along the laser channel; at least one of the collimating mirror unit, the reflecting mirror unit and the focusing mirror unit is connected with a vibrating device 6, or all of the collimating mirror unit, the reflecting mirror unit and the focusing mirror unit are connected with a vibrating device 6, and the vibrating device 6 is used for driving the collimating mirror unit, the reflecting mirror unit or the focusing mirror unit to move.
In the embodiment, the welding gun shell comprises a handle 10, a reflector cavity 15 and a front cavity which are connected in sequence; the handle 10 is a plastic handle 10, a QBH seat 11 is arranged at the tail end of the handle 10 and used for connecting the laser 22, and the collimating mirror unit is mounted at the front end of the inner cavity of the handle 10; the reflector cavity 15 is mounted at the front end of the handle 10, and the reflector unit is mounted in the reflector cavity 15; the front cavity is mounted at the front end of the reflector cavity 15, the focusing lens unit is mounted in the front cavity, and the welding head 1 is mounted at the front end of the front cavity.
In this embodiment, the collimator lens unit includes a collimator lens 12 and a collimator lens base 13, the collimator lens base 13 is installed at the front end of the inner cavity of the handle 10, and the collimator lens 12 is installed on the collimator lens base through the vibrating device 6.
When the collimating lens unit is not connected with the vibrating device 6, the collimating lens unit comprises a collimating lens 12, a collimating lens seat 13 and a collimating lens support 9, the collimating lens seat 13 is installed at the front end of the inner cavity of the handle 10, and the collimating lens 12 is installed on the collimating lens seat 13 through the collimating lens support 9.
In this embodiment, the reflector cavity 15 includes a main cavity and a cavity cover 14, the cavity cover 14 is detachably mounted on the side of the main cavity by bolts, and the reflector unit is mounted on the cavity cover 14; the cavity cover 14 is made of aluminum material, so that the heat dissipation effect is improved.
When the reflector unit is not connected with the vibrating device 6, the reflector unit comprises a reflector bracket and a reflector, and the reflector is arranged on the cavity cover 14 through the reflector bracket; the cavity cover 14 and the reflector bracket are made of aluminum, so that heat dissipation is guaranteed; the back of the reflector 7 is also provided with aluminum radiating fins, and the radiating fins are connected with the reflector bracket, so that the radiating effect is further improved, the overheat shutdown is prevented, and the handheld laser welding gun can continuously work.
In this embodiment, the focusing lens unit includes a focusing lens 5, the focusing lens 5 is mounted at the tail end of the front cavity through the vibrating device 6, a protective lens is mounted in front of the focusing lens 5, the protective lens is further connected with a protective lens base 18, the protective lens base 18 is mounted on a protective lens frame 17, the protective lens frame 17 is mounted in the front cavity, the protective lens is arranged to effectively protect the focusing lens 5, and the protective lens is made of transparent glass; a first heat insulating block 19 is installed in front of the protective glasses.
In this embodiment, the bonding tool 1 is mounted at the front end of the front cavity through a bonding tool base 2, and a second heat insulation block 3 is mounted on the bonding tool base 2.
The heat insulation effect is improved by arranging the heat insulation blocks, and the heat insulation blocks can be made of the existing heat insulation materials.
In this embodiment, an infrared sensor 20 and a protection switch 21 are disposed outside the front end of the front cavity, and the handle 10 is connected to a switch 8; the novel handheld laser welding gun is characterized by further comprising a control panel 16, wherein the control panel 16 is installed in the reflector cavity 15, the control panel 16 is used for controlling the whole novel handheld laser welding gun, and the novel handheld laser welding gun further comprises a power supply used for providing power.
In the embodiment, the infrared sensor 20 is connected with the control board 16, the infrared sensor 20 senses the distance between the object to be welded and transmits a signal to the control board 16, and when the control board 16 senses that the object to be welded is located within a specified distance range, the welding gun can work; otherwise, the control panel 16 controls the welding gun to be closed by controlling the protection switch 21, so as to prevent the welding gun from being started accidentally and bringing about potential safety hazards.
In this embodiment, each lens support or heat insulation block and other devices are provided with a through hole so that laser can pass through the through hole.
In this embodiment, the vibration device 6 includes an electromagnetic coil fixing seat 61, an electromagnetic coil 62 is disposed in the electromagnetic coil fixing seat 61, a magnet 64 is disposed inside the electromagnetic coil 62, the magnet 64 is connected to the reflecting mirror 7, the collimating mirror 12 or the focusing mirror 5, and the reflecting mirror 7, the collimating mirror 12 or the focusing mirror 5 is connected to the top of the electromagnetic coil fixing seat 61 through a reed 63; the electromagnetic coil signal generator further comprises a signal generator 66 and a signal amplifying circuit 65, wherein the signal generator 66 is connected with the electromagnetic coil through the signal amplifying circuit 65.
In the present embodiment, when the electromagnetic coil is connected with a power supply, a magnetic field is generated between the inside of the electromagnetic coil and the magnet 64, the signal generator 66 is connected with the electromagnetic coil through the signal amplifying circuit 65, the magnet 64 is assembled in the electromagnetic coil, and the magnet 64 and the reed 63 are respectively used for connecting the reflecting mirror 7, the collimating mirror 12 or the focusing mirror 5;
the output signal frequency of the signal generator 66 is configured to be the same as or close to the natural frequency of the vibrating piece including the reed 63, the magnet 64, the reflecting mirror 7, the collimating mirror 12 or the focusing mirror 5; when the electromagnetic coil is electrified, the magnet 64 does linear reciprocating motion or swinging motion in the electromagnetic coil, the motion frequency can be adjusted according to requirements, and the magnet 64 moves to drive the reed 63 to move; thereby can drive speculum 7, collimating mirror 12 or focusing mirror 5 motion, further can adjust the position of laser focus point, satisfy multiple job needs.
Example two
The embodiment is an improvement on the basis of the first embodiment, and the improvement is as follows: as shown in fig. 7, the vibrating device 6 of the mirror 7 unit is a swinging device.
In this embodiment, the reflector 7 is rotatably mounted on the cavity cover 16 through a rotating bracket; the cavity cover 16 is made of aluminum materials, so that the heat dissipation effect is improved; the specific structure of the rotating support can be selected according to the working requirement, if the rotating support comprises two elastic rods or flexible rods, the elastic rods or the flexible rods are connected with the reflector and can swing along with the reflector, or the rotating support comprises two telescopic rods, one end of each telescopic rod is hinged with the reflector, the other end of each telescopic rod is hinged with the cavity cover 14, or other rotating mechanisms meeting the working requirement are adopted.
In this embodiment, the oscillating device includes a wind wheel 23 and a connecting rod 24, the wind wheel 23 is mounted on the inner wall of the reflector cavity 24, and the wind wheel 23 is connected with the reflector 7 through the connecting rod 24; the connecting rod 24 is driven to rotate through the wind wheel 23, so that the reflecting mirror 7 can be driven to swing, the reflecting angle of the reflecting mirror 7 is changed, the position of a laser focusing point can be further adjusted, and various working requirements are met.
In this embodiment, the tail end of the welding gun shell is provided with an air inlet for introducing compressed air, the compressed air is communicated to the wind wheel, the wind wheel rotates to drive the connecting rod to move, and the connecting rod drives the reflector 7 to swing.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. A novel handheld laser welding gun comprises a welding gun shell, wherein the tail end of the welding gun shell is connected with a laser, the front end of the welding gun shell is provided with a welding head, a laser channel is arranged in the welding gun shell, and a collimating mirror unit, a reflecting mirror unit and a focusing mirror unit are sequentially arranged in the welding gun shell along the laser channel; the method is characterized in that: at least one of the collimating mirror unit, the reflecting mirror unit and the focusing mirror unit is connected with a vibration device, and the vibration device is used for driving the collimating mirror unit, the reflecting mirror unit or the focusing mirror unit to move;
the welding gun shell comprises a handle, a reflector cavity and a front cavity which are connected in sequence; the tail end of the handle is provided with a QBH seat used for being connected with the laser, and the collimating mirror unit is arranged at the front end of the inner cavity of the handle; the reflector cavity is arranged at the front end of the handle, and the reflector unit is arranged in the reflector cavity; the front cavity is arranged at the front end of the reflector cavity, the focusing mirror unit is arranged in the front cavity, and the welding head is arranged at the front end of the front cavity;
the vibration device comprises an electromagnetic coil fixing seat, an electromagnetic coil is arranged in the electromagnetic coil fixing seat, a magnet is arranged in the electromagnetic coil and used for being connected with the reflecting mirror, the collimating mirror or the focusing mirror, the reflecting mirror, the collimating mirror or the focusing mirror are connected with the top of the electromagnetic coil fixing seat through reeds, and the electromagnetic coil is connected with a signal generator through a signal amplifying circuit.
2. The novel handheld laser welding gun according to claim 1, characterized in that: the collimating lens unit comprises a collimating lens and a collimating lens seat, the collimating lens seat is installed at the front end of the inner cavity of the handle, and the collimating lens is installed on the collimating lens seat through the vibrating device.
3. The novel handheld laser welding gun according to claim 1, characterized in that: the speculum cavity includes the main cavity body and cavity lid, cavity lid demountable installation in the lateral part of the main cavity body, the speculum unit includes the speculum, the speculum unit passes through vibrating device install in the speculum cavity.
4. The novel handheld laser welding gun according to claim 1, characterized in that: the focusing mirror unit comprises a focusing mirror, the focusing mirror is installed at the tail end of the front cavity through the vibrating device, a protective mirror is installed in front of the focusing mirror, and a first heat insulation block is installed in front of the protective mirror.
5. The novel handheld laser welding gun according to claim 1, characterized in that: the welding head is installed at the front end of the front cavity through a welding head base, and a second heat insulation block is installed on the welding head base.
6. The novel handheld laser welding gun according to claim 1, characterized in that: an infrared sensor and a protection switch are arranged on the outer side of the front end of the front cavity, and a switch is connected to the handle.
7. The novel handheld laser welding gun according to claim 1, characterized in that: the reflecting mirror is characterized by further comprising a control board, wherein the control board is arranged in the reflecting mirror cavity.
8. The novel handheld laser welding gun according to claim 3, characterized in that: the vibration device of the reflector unit is a swing device, the swing device comprises a wind wheel and a connecting rod, the wind wheel is installed in the reflector cavity, and the wind wheel is connected with the reflector through the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021031496.6U CN212682795U (en) | 2020-06-08 | 2020-06-08 | Novel handheld laser welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021031496.6U CN212682795U (en) | 2020-06-08 | 2020-06-08 | Novel handheld laser welding gun |
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| Publication Number | Publication Date |
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| CN212682795U true CN212682795U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021031496.6U Active CN212682795U (en) | 2020-06-08 | 2020-06-08 | Novel handheld laser welding gun |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828923A (en) * | 2021-10-18 | 2021-12-24 | 光惠（上海）激光科技有限公司 | Handheld laser instrument of welding usefulness |
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2020
- 2020-06-08 CN CN202021031496.6U patent/CN212682795U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828923A (en) * | 2021-10-18 | 2021-12-24 | 光惠（上海）激光科技有限公司 | Handheld laser instrument of welding usefulness |
| CN113828923B (en) * | 2021-10-18 | 2022-07-15 | 光惠（上海）激光科技有限公司 | Handheld laser for welding |
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