CN212704975U - Handheld laser welding gun - Google Patents
Handheld laser welding gun Download PDFInfo
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- CN212704975U CN212704975U CN202021031764.4U CN202021031764U CN212704975U CN 212704975 U CN212704975 U CN 212704975U CN 202021031764 U CN202021031764 U CN 202021031764U CN 212704975 U CN212704975 U CN 212704975U
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Abstract
The utility model discloses a 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; the reflecting mirror unit comprises a vibrating device and a reflecting mirror, the vibrating device is connected with the reflecting mirror, and the vibrating device is used for driving the reflecting mirror to move. The utility model discloses a vibrating device drives the speculum 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 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 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 handheld laser welder to solve the problem that above-mentioned prior art exists, drive speculum linear motion through vibrating device, 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 hand-held 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; the reflecting mirror unit comprises a vibrating device and a reflecting mirror, the vibrating device is connected with the reflecting mirror, and the vibrating device is used for driving the reflecting mirror to do linear motion.
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, a collimating lens base and a collimating lens support, the collimating lens base is mounted at the front end of the inner cavity of the handle, and the collimating lens is mounted on the collimating lens base through the collimating lens support.
Preferably, the reflector cavity comprises a main cavity and a cavity cover, the cavity cover is detachably mounted on the side of the main cavity, and the reflector unit is mounted on the cavity cover.
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 connected with the reflector, the reflector is connected with the top of the electromagnetic coil fixing seat through a reed, and the electromagnetic coil is connected with a signal generator through a signal amplification circuit.
Preferably, the focusing mirror unit comprises a focusing mirror, the focusing mirror is mounted at the tail end of the front cavity, 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.
The utility model discloses for prior art gain following technological effect:
1. the reflector is driven to move linearly through the vibration device, so that a 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 hand-held laser welding gun;
FIG. 2 is a cross-sectional view of a 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 diagram of the operation of a hand-held laser welding gun;
FIG. 8 is a schematic diagram of the operation of the vibration apparatus;
FIG. 9 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, and 22 is a laser.
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 handheld laser welding gun, which includes a welding gun housing, wherein a laser 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; the reflecting mirror unit comprises a vibrating device 6 and a reflecting mirror 7, the vibrating device 6 is connected with the reflecting mirror 7, and the vibrating device 6 is used for driving the reflecting mirror 7 to move.
Preferably, the welding gun shell comprises a handle 10, a reflector cavity 15 and a front cavity which are connected in sequence; the laser device comprises a handle 10, a QBH seat 11, a collimating mirror unit and a laser unit, wherein the handle 10 is a plastic handle, the QBH seat 11 is arranged at the tail end of the handle 10 and used for being connected with the laser device, and the collimating mirror unit is installed at the front end of an 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.
Preferably, the collimator lens unit includes a collimator lens 12, a collimator lens base 13 and a collimator lens support 9, 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 13 through the collimator lens support 9.
Preferably, 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 through 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.
In the embodiment, the vibration device 6 comprises a solenoid coil fixing seat 61, a solenoid coil 62 is arranged in the solenoid coil fixing seat 61, a magnet 64 is arranged inside the solenoid coil 62, the magnet 64 is connected with the reflector 7, and the reflector 7 is connected to the top of the solenoid coil fixing seat 61 through a reed 63; the electromagnetic induction heating device further comprises a signal generator 66 and a signal amplifying circuit 65, wherein the signal generator 66 is connected with the electromagnetic coil 62 through the signal amplifying circuit 65. Wherein, the electromagnetic coil fixing seat 61 is fixed on the cavity cover 14, and the magnet 64 is connected with the reverse side of the reflector 7.
In the present embodiment, when the electromagnetic coil 62 is connected to a power supply, a magnetic field is generated between the inside of the electromagnetic coil 62 and the magnet 64, the signal generator 66 is connected to the electromagnetic coil 62 through the signal amplifying circuit 65, the magnet 64 is assembled in the electromagnetic coil 62, and the magnet 64 and the spring 63 are respectively used for connecting the reflecting mirror 7;
the output signal frequency of the signal generator 66 is set to be the same as or close to the natural frequency of the vibrating member including the reed 63, the magnet 64, and the mirror 7; when the electromagnetic coil 62 is electrified, the magnet 64 does linear reciprocating motion or swinging motion in the electromagnetic coil 62, 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 and remove, change speculum 7's reflection angle, further can adjust the position of laser focus point, satisfy multiple job needs.
Preferably, the focusing lens unit comprises a focusing lens 5, the focusing lens 5 is mounted at the tail end of the front cavity, a protective lens is mounted in front of the focusing lens 5, the protective lens is further connected with a protective lens frame 17, the protective lens frame 17 is mounted on a protective lens seat 18, the protective lens seat 18 is mounted in the front cavity, the protective lens is arranged, the focusing lens 5 can be effectively protected, and the protective lens is made of transparent glass; a first heat insulating block 19 is installed in front of the protective glasses.
Preferably, the welding head 1 is mounted at the front end of the front cavity through a welding head base 2, and a second heat insulation block 3 is mounted on the welding head base 2.
The heat insulation effect is improved by arranging the heat insulation blocks, and the heat insulation blocks are made of the existing heat insulation materials.
Preferably, an infrared sensor 20 and a protection switch 21 are arranged on the outer side of the front end of the front cavity, and the handle is connected with a switch 8; the laser welding gun is characterized by further comprising a control board 16, wherein the control board 16 is installed in the cavity of the reflector 7 and used for controlling the whole handheld laser welding gun, and the power supply is used for supplying 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.
The working process of the handheld laser welding gun in the embodiment is as follows:
laser channels for laser to pass through are arranged in the handheld laser welding guns, the lasers are arranged at the bottoms of the welding guns, and the collimating lens 12, the reflecting mirror 7 and the focusing mirror 5 are respectively arranged on laser light paths; when the laser gun works, laser reaches the reflecting mirror 7 after passing through the collimating mirror 12, the laser conversion angle is reflected on the focusing mirror 5, the laser is focused through the focusing mirror 5, and the focus falls on the gun head opening.
In the present embodiment, the reflecting mirror 7 is mounted on the vibrating device 6, and is used for driving the reflecting mirror 7 to vibrate or swing, so that the laser beam reflected by the reflecting mirror 7 swings back and forth along a straight line, and the laser focus also moves back and forth in a straight line.
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 (7)
1. A 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: the reflecting mirror unit comprises a vibrating device and a reflecting mirror, the vibrating device is connected with the reflecting mirror, and the vibrating device is used for driving the reflecting mirror 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 collimating lens unit comprises a collimating lens, a collimating lens seat and a collimating lens support, 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 collimating lens support.
2. The hand-held laser welding gun according to claim 1, wherein: the reflector cavity comprises a main cavity body and a cavity cover, the cavity cover is detachably mounted on the side portion of the main cavity body, and the reflector unit is mounted on the cavity cover.
3. The hand-held laser welding gun according to claim 2, wherein: 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 connected with the reflecting mirror, the reflecting mirror is connected with the top of the electromagnetic coil fixing seat through a reed, and the electromagnetic coil is connected with a signal generator through a signal amplification circuit.
4. The hand-held laser welding gun according to claim 2, wherein: the focusing mirror unit comprises a focusing mirror, the focusing mirror is installed at the tail end of the front cavity, 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 hand-held laser welding gun according to claim 2, wherein: 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 hand-held laser welding gun according to claim 2, wherein: 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 hand-held laser welding gun according to claim 2, wherein: the reflecting mirror is characterized by further comprising a control board, wherein the control board is arranged in the reflecting mirror cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021031764.4U CN212704975U (en) | 2020-06-08 | 2020-06-08 | Handheld laser welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021031764.4U CN212704975U (en) | 2020-06-08 | 2020-06-08 | Handheld laser welding gun |
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| Publication Number | Publication Date |
|---|---|
| CN212704975U true CN212704975U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021031764.4U Active CN212704975U (en) | 2020-06-08 | 2020-06-08 | Handheld laser welding gun |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115805374A (en) * | 2023-02-08 | 2023-03-17 | 无锡超强伟业科技有限公司 | Laser welding gun |
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2020
- 2020-06-08 CN CN202021031764.4U patent/CN212704975U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115805374A (en) * | 2023-02-08 | 2023-03-17 | 无锡超强伟业科技有限公司 | Laser welding gun |
| CN115805374B (en) * | 2023-02-08 | 2024-01-02 | 无锡超强伟业科技有限公司 | Laser welding gun |
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