CN215432122U

CN215432122U - High-safety-performance handheld laser welder

Info

Publication number: CN215432122U
Application number: CN202120544762.3U
Authority: CN
Inventors: 汤壹伍
Original assignee: Shenzhen Huizhi Laser Equipment Co ltd
Current assignee: Shenzhen Huizhiguang Technology Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2022-01-07
Anticipated expiration: 2031-03-16

Abstract

The utility model provides a high-safety handheld laser welder which comprises a welding head, a power supply connecting wire, a manual switch for starting the laser welder and an automatic on-off switch. The automatic on-off switch is closed when being close to or contacting with the metal material, and the automatic on-off switch is connected with the manual switch in series. When a worker welds, the laser welding device is close to or contacts a metal material to be welded, the manual switch is closed, the automatic on-off switch senses that the metal material is automatically closed, at the moment, the laser welding device is powered on, and laser emits to start normal welding work. If the laser welding ware is not close to or when contacting with metal material, automatic on-off switch is in the on-state all the time, and the power can't be put through to, even manual switch is unexpected closed, laser can not the outgoing yet, thereby effectual workman's safety of having guaranteed.

Description

High-safety-performance handheld laser welder

Technical Field

The utility model belongs to the technical field of laser welders, and particularly relates to a high-safety handheld laser welder.

Background

In laser welding, high-energy laser pulses are used for locally heating materials in micro-areas, energy radiated by laser is diffused into the materials through heat conduction, and the materials are melted to form a specific molten pool. The novel welding mode is mainly used for welding thin-wall materials and precise parts, spot welding, butt welding, stitch welding, seal welding and the like can be realized, the depth-width ratio is high, the width of a welding seam is small, a heat affected zone is small, deformation is small, the welding speed is high, the welding seam is flat and attractive, treatment is not needed or only simple treatment is needed after welding, the welding seam is high in quality, free of air holes, capable of being accurately controlled, small in focusing light spot, high in positioning accuracy and easy to realize automation.

Laser is high in energy and has high risk, and workers can injure themselves or others if the workers perform laser welding carelessly. Likewise, if the laser welder is accidentally triggered while in the closed state, workers may be injured.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-safety handheld laser welder, and aims to solve the problem that a worker is possibly injured if the welder in the prior art is accidentally triggered.

The utility model is realized in such a way that the high-safety handheld laser welding device comprises a welding head, a power supply connecting wire, a manual switch for starting the laser welding device and an automatic on-off switch, wherein the automatic on-off switch is closed when being close to or in contact with a metal material, and the automatic on-off switch is connected with the manual switch in series.

Further, the automatic on-off switch is an inductive proximity switch, the inductive proximity switch senses a metal material by using eddy current, and when the metal material appears in a certain range, the inductive proximity switch is closed.

Further, the automatic on-off switch is a contact switch, the contact switch includes a first conductive contact and a second conductive contact, when the first conductive contact and the second conductive contact are simultaneously in contact with a metal material, the first conductive contact, the metal material and the second conductive contact jointly form a loop, and the contact switch is closed.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model relates to a hand-held laser welding device, which is provided with an automatic on-off switch connected with a manual switch in series, wherein the automatic on-off switch is closed when being close to or contacted with a metal material. When a worker welds, the laser welding device is close to or contacts a metal material to be welded, the manual switch is closed, the automatic on-off switch senses that the metal material is automatically closed, at the moment, the laser welding device is powered on, and laser emits to start normal welding work. If the laser welding ware is not close to or when contacting with metal material, automatic on-off switch is in the on-state all the time, and the power can't be put through to, even manual switch is unexpected closed, laser can not the outgoing yet, thereby effectual workman's safety of having guaranteed.

Drawings

Fig. 1 is a schematic connection diagram of a manual switch and an automatic on-off switch of a handheld laser welding device provided in the present embodiment;

FIG. 2 is a schematic diagram of the operation of the inductive proximity switch provided in the present embodiment;

fig. 3 is an operation schematic diagram of the touch switch provided in the present embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, a high safety handheld laser welder according to a preferred embodiment of the present invention is shown, which includes a welding head 1, a power connection 2, a manual switch 3 for starting the laser welder, and an automatic on/off switch 4. The automatic on-off switch 4 is closed when being close to or in contact with the metal material 200, and the automatic on-off switch 4 is connected in series with the manual switch 3.

In practice, the automatic on-off switch 4 may be an inductive proximity switch 4 a. Referring to fig. 2, the inductive proximity switch 4a senses a metal material 200 using an eddy current, and when the metal material 200 is present within a certain range, the inductive proximity switch 4a is closed. Specifically, the inductive proximity switch 4a is a sensor for sensing an object by using eddy current, and is composed of a high-frequency oscillation circuit, an amplifying circuit, a shaping circuit and an output circuit. The oscillator is an LC oscillation circuit formed by a coil wound around a core. The oscillator generates a high-frequency alternating electromagnetic field in front of the sensor through the induction surface of the sensor, when an external metal object approaches the magnetic field and reaches an induction area, an eddy current effect is generated in the metal object, so that the oscillation of the LC oscillation circuit is weakened or stopped, the oscillation change is amplified by the post-circuit and converted into an output signal with a determined switch, and the purpose of detecting the metal material 200 in a non-contact mode is achieved.

Referring to fig. 3, the automatic on-off switch 4 may also be a contact switch 4b, where the contact switch 4b includes a first conductive contact 41b and a second conductive contact 42b, and when the first conductive contact 41b and the second conductive contact 42b are simultaneously in contact with the metal material 200, the first conductive contact 41b, the metal material 200, and the second conductive contact 42b form a loop together, and the contact switch 4b is closed.

The hand-held laser welder of the present embodiment has an automatic on-off switch 4 connected in series with a manual switch 3, and the automatic on-off switch 4 is closed when it comes close to or in contact with the metal material 200. When a worker welds, the laser welding device is close to or contacts the metal material 200 to be welded, the manual switch 3 is closed, the automatic on-off switch 4 senses that the metal material 200 is automatically closed, at the moment, the laser welding device is powered on, laser emits, and normal welding work can be started. If the laser welding device is not close to or does not contact with the metal material 200, the automatic on-off switch 4 is always in an open state, and the power supply cannot be switched on, so that laser cannot be emitted even if the manual switch 3 is accidentally closed, and the safety of workers is effectively guaranteed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a hand-held type laser welder of high security performance, includes soldered connection, power connecting wire and is used for starting the hand switch of laser welder, its characterized in that, hand-held type laser welder still includes automatic on-off switch, it is closed when being close to or contacting metal material to automatic on-off switch, automatic on-off switch with hand switch series connection.

2. The high safety handheld laser welder according to claim 1, characterized in that the automatic on-off switch is an inductive proximity switch that senses metallic material with eddy currents, and closes when metallic material is present within a certain range.

3. The high safety handheld laser welder according to claim 1, wherein the automatic on-off switch is a contact switch, the contact switch comprises a first conductive contact and a second conductive contact, and when the first conductive contact and the second conductive contact are simultaneously in contact with the metal material, the first conductive contact, the metal material and the second conductive contact form a loop, and the contact switch is closed.