CN212704974U - Handheld laser welding gun with adjustable collimating lens - Google Patents
Handheld laser welding gun with adjustable collimating lens Download PDFInfo
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- CN212704974U CN212704974U CN202021031689.1U CN202021031689U CN212704974U CN 212704974 U CN212704974 U CN 212704974U CN 202021031689 U CN202021031689 U CN 202021031689U CN 212704974 U CN212704974 U CN 212704974U
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Abstract
The utility model discloses a handheld laser welder with adjustable collimating mirror, which relates to the technical field of laser welding, and comprises a welder shell, wherein the tail end of the welder shell is connected with a laser, the front end of the welder shell is provided with a welding head, a laser channel is arranged in the welder shell, and a collimating mirror unit, a reflecting mirror unit and a focusing mirror unit are sequentially arranged along the laser channel in the welder shell; the collimating mirror unit comprises a collimating mirror vibration device and a collimating mirror, the collimating mirror vibration device is connected with the collimating mirror, and the collimating mirror vibration device is used for driving the collimating mirror to move. The utility model discloses a collimating mirror vibrating device drives the collimating mirror motion to can adjust laser focus point position, satisfy multiple welding demand.
Description
Technical Field
The utility model relates to a laser welding technical field especially relates to a handheld laser welder of collimating mirror adjustable.
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 with an adjustable collimating lens to solve the above problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a handheld laser welder of collimating mirror adjustable to solve the problem that above-mentioned prior art exists, drive the collimating mirror motion through collimating mirror vibrating device, thereby can adjust the position of 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 handheld laser welder with adjustable collimating lens, 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 lens unit, a reflecting mirror unit and a focusing mirror unit are sequentially arranged along the laser channel in the welding gun shell; the method is characterized in that: the collimating mirror unit comprises a collimating mirror vibration device and a collimating mirror, the collimating mirror vibration device is connected with the collimating mirror, and the collimating mirror vibration device is used for driving the collimating mirror 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 mirror unit further comprises a collimating base, the collimating base is mounted at the front end of the inner cavity of the handle, and the collimating mirror is mounted on the collimating base through the collimating mirror vibrating device; the collimator lens vibration device comprises an electromagnetic coil fixing seat, an electromagnetic coil is arranged in the electromagnetic coil fixing seat, a magnet is arranged inside the electromagnetic coil and connected with the collimator lens, the collimator lens 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 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 reflector unit comprises a reflector bracket and a reflector, and the reflector is mounted on the cavity cover through the reflector bracket; the cavity cover and the reflector bracket are made of aluminum, and radiating fins are further arranged on the back face of the reflector and connected with the reflector bracket.
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 collimating mirror is driven to move by the collimating mirror vibrating device, so that the position of 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 with adjustable collimating lens;
FIG. 2 is a cross-sectional view of a handheld laser welding torch with adjustable collimating mirror;
FIG. 3 is a schematic diagram of the operation of a hand-held laser welding gun with adjustable collimating lens;
FIG. 4 is a schematic diagram of the collimator vibrating device of the present invention;
FIG. 5 is a schematic structural diagram of a collimator vibrating device according to the present invention;
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 mirror, 6 is a reflector bracket, 7 is a reflector, 8 is a switch, 9 is a collimating mirror vibrating device, 901 is a signal generator, 902 is a signal amplifying circuit, 903 is an electromagnetic coil, 904 is a magnet, 905 is a reed, 10 is a handle, 11 is a QBH seat, 12 is a collimating mirror, 13 is a collimating 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 mirror 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 with an adjustable collimating mirror, 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; the collimating mirror unit comprises a collimating mirror vibrating device 9 and a collimating mirror 12, the collimating mirror vibrating device 9 is connected with the collimating mirror 12, and the collimating mirror vibrating device 9 is used for driving the collimating mirror 12 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 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.
Preferably, the collimating mirror unit further comprises a collimating base 13, the collimating base 13 is mounted at the front end of the inner cavity of the handle 10, and the collimating mirror 12 is mounted on the collimating base 13 through the collimating mirror vibrating device 9; the collimator 12 is driven to move by the collimator vibrating device 9, so that the position of a laser focusing point can be adjusted, and various welding requirements are met.
In this embodiment, the collimator lens vibrating device 9 includes an electromagnetic coil fixing seat, an electromagnetic coil 903 is disposed in the electromagnetic coil fixing seat, a magnet 904 is disposed inside the electromagnetic coil 903, the magnet 904 is connected to the collimator lens 12, and the collimator lens 12 is connected to the top of the electromagnetic coil fixing seat through a reed 905; the electromagnetic coil is characterized by further comprising a signal generator 901 and a signal amplifying circuit 902, wherein the signal generator 901 is connected with the electromagnetic coil 903 through the signal amplifying circuit 902. Wherein, the electromagnetic coil fixing seat is fixed on the collimation seat 13.
In the present embodiment, when the electromagnetic coil 903 is connected to a power supply, a magnetic field is generated between the inside of the electromagnetic coil 903 and the magnet 904, the signal generator 901 is connected to the electromagnetic coil 903 through the signal amplifying circuit 902, the magnet 904 is assembled in the electromagnetic coil 903, and the magnet 904 and the reed 905 are respectively used for connecting the collimating mirror 12;
the frequency of the output signal of the signal generator 901 is configured to be the same as or close to the natural frequency of the vibrating piece including the reed 905, the magnet 904 and the collimating mirror 12; when the electromagnetic coil 903 is electrified, the magnet 904 makes linear reciprocating motion or swinging in the electromagnetic coil 903, the motion frequency can be adjusted according to requirements, and the magnet 904 moves to drive the movable reed 905 to move; thereby can drive collimating mirror 12 and remove to make collimating mirror 12 transmit the laser beam of speculum 7 along straight reciprocating motion, further can adjust the position of laser focus, satisfy multiple job requirement.
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 by bolts, and the reflector unit is mounted on the cavity cover 14.
Preferably, the reflector unit comprises a reflector bracket 6 and a reflector 7, and the reflector 7 is mounted on the cavity cover 14 through the reflector bracket 6; 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 which are connected with the reflector bracket 6, so that the radiating effect is further improved, the overheat shutdown is prevented, and the handheld laser welding gun can continuously work.
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 and further connected with a protective lens seat 18, the protective lens seat 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, 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 can be 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 10 is connected with a switch 8; the laser welding gun further comprises a control board 16, wherein the control board 16 is installed in the reflector cavity 15, the control board 16 is used for controlling the whole adjustable handheld laser welding gun with the collimating mirror, 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:
a laser channel for laser to pass through is arranged in each handheld laser welding gun, a laser 22 is arranged at the bottom of each welding gun, and a collimating mirror 12, a reflecting mirror 7 and a focusing mirror 5 are respectively arranged on a laser light path; during working, the laser 22 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.
In the present embodiment, the collimator 12 is mounted on the collimator vibrating device 9, and is used for driving the collimator 12 to vibrate or swing, so that the laser beam emitted by the collimator 12 to the reflecting mirror 7 reciprocates along a straight line, and the laser focus also reciprocates along 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 with an adjustable collimating lens 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 lens 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 collimating mirror unit comprises a collimating mirror vibration device and a collimating mirror, the collimating mirror vibration device is connected with the collimating mirror, and the collimating mirror vibration device is used for driving the collimating 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 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.
2. The adjustable collimating lens handheld laser welding gun of claim 1, characterized in that: the collimating lens unit also comprises a collimating seat, the collimating seat is arranged at the front end of the inner cavity of the handle, and the collimating lens is arranged on the collimating seat through the collimating lens vibrating device; the collimator lens vibration device comprises an electromagnetic coil fixing seat, an electromagnetic coil is arranged in the electromagnetic coil fixing seat, a magnet is arranged inside the electromagnetic coil and connected with the collimator lens, the collimator lens 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.
3. The adjustable collimating lens handheld laser welding gun of claim 1, characterized in that: the reflector unit comprises a reflector bracket and a reflector, and the reflector is arranged on the cavity cover through the reflector bracket; the cavity cover and the reflector bracket are made of aluminum, and radiating fins are further arranged on the back face of the reflector and connected with the reflector bracket.
4. The adjustable collimating lens handheld laser welding gun of 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, 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 adjustable collimating lens handheld laser welding gun of 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 adjustable collimating lens handheld laser welding gun of 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 adjustable collimating lens handheld laser welding gun of 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021031689.1U CN212704974U (en) | 2020-06-08 | 2020-06-08 | Handheld laser welding gun with adjustable collimating lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021031689.1U CN212704974U (en) | 2020-06-08 | 2020-06-08 | Handheld laser welding gun with adjustable collimating lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212704974U true CN212704974U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021031689.1U Active CN212704974U (en) | 2020-06-08 | 2020-06-08 | Handheld laser welding gun with adjustable collimating lens |
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| Country | Link |
|---|---|
| CN (1) | CN212704974U (en) |
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2020
- 2020-06-08 CN CN202021031689.1U patent/CN212704974U/en active Active
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