CN214322177U

CN214322177U - Hand-held type laser welding joint design

Info

Publication number: CN214322177U
Application number: CN202120078713.5U
Authority: CN
Inventors: 陈宗连; 邬宏鑫; 陈宗和
Original assignee: Shenzhen Lanlian Technology Co ltd
Current assignee: Shenzhen Lanlian Technology Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-10-01
Anticipated expiration: 2031-01-12

Abstract

The utility model discloses a hand-held type laser welding joint structure, including the soldered connection casing, the soldered connection casing is the crooked form of cavity, inside collimation lens, refraction rotary unit, reflection lens and the focusing lens of being equipped with in proper order of soldered connection casing. The existing hand-held welding head has the weight ranging from 1.5KG to 2Kg, and the structure of the whole laser welding head is changed by improving the distribution structure of a light path, so that the whole laser welding head can achieve a certain light weight, the improved laser welding head has the weight of about 0.6Kg, the use of operators is facilitated, and fatigue can not be felt even after long-time use.

Description

Hand-held type laser welding joint design

Technical Field

The utility model relates to a laser welding technical field specifically is a hand-held type laser welding joint design.

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.

One type of laser welding is hand-held laser welding, and the light path of the existing hand-held laser welding head is formed by collimating laser into parallel beams through a collimating lens, reflecting the parallel beams by a certain angle through a reflecting lens, refracting the parallel beams by a wedge-shaped lens to enable the beams to be eccentric, driving the wedge-shaped lens to rotate by a hollow brushless motor to enable the beams to swing to form a circle, and finally focusing and ejecting the laser beams through a focusing lens.

However, the reflected light path is long due to the light path distribution design, the operation is not easy when the welding head is used for holding the operation, the welding head structure is heavy, the weight is 1.5KG to 2Kg, and an operator is easy to fatigue when holding the welding head for a long time.

To this end, we propose a hand-held laser welding joint structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hand-held type laser welding joint design to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hand-held type laser welding joint structure, includes the soldered connection casing, the soldered connection casing is the crooked form of cavity, inside collimation lens, refraction rotary unit, reflection mirror and the focusing lens of being equipped with in proper order of soldered connection casing.

Preferably, the collimating lens is fixedly attached to the inside of the hand-held end of the bond head housing.

Preferably, refraction rotary unit establishes in the light outgoing one side of collimation lens, refraction rotary unit includes wedge lens and hollow brushless motor, the inside one end of hollow brushless motor fixed connection at the handheld end of soldered connection casing, the wedge lens is established in one side of hollow brushless motor, wedge lens fixed connection is at hollow brushless motor rotating part.

Preferably, the reflector is arranged on the light emergent side of the wedge-shaped lens, and the reflector is fixedly connected to the inside of the bent part of the welding head shell.

Preferably, the focusing lens is arranged below the reflecting lens, and the focusing lens is fixedly connected to the inside of the welding end of the welding head shell.

Preferably, a protective lens is fixedly connected to one side of the focusing lens.

Preferably, an adjusting knob is further arranged outside the welding head shell.

Compared with the prior art, the beneficial effects of the utility model are that: the existing hand-held welding head has the weight ranging from 1.5KG to 2Kg, and the structure of the whole laser welding head is changed by improving the distribution structure of a light path, so that the whole laser welding head can achieve a certain light weight, the improved laser welding head has the weight of about 0.6Kg, the use of operators is facilitated, and fatigue can not be felt even after long-time use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a sectional view of the present invention.

In the figure: 1-a weld head housing; 2-a collimating lens; 3-a refractive rotation unit; 4-a mirror plate; 5-a focusing lens; 6-hollow brushless motor; 7-protective lenses; 8-a wedge-shaped lens; 9-adjusting knob.

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.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a hand-held type laser welding joint structure, includes soldered connection casing 1, soldered connection casing 1 is the crooked form of cavity, soldered connection casing 1 is inside to be equipped with collimating lens 2, refraction rotary unit 3, reflecting mirror 4 and focusing lens 5 in proper order.

The collimating lens 2 is fixedly connected to the inner part of the handheld end of the welding head shell 1. The incident light is collimated into parallel light beams through the collimating lens 2, so that subsequent light refraction and reflection are facilitated.

Refraction rotary unit 3 establishes in the light outgoing one side of collimating lens 2, refraction rotary unit 3 includes wedge lens 8 and hollow brushless motor 6, the inside one end of hollow brushless motor 6 fixed connection at the handheld end of soldered connection casing 1, wedge lens 8 is established in one side of hollow brushless motor 6, 8 fixed connection of wedge lens are at the 6 rotating part of hollow brushless motor. Make the light beam off-centre through 8 refractions of wedge lens, reuse hollow brushless motor 6 drive wedge lens and rotate, make the laser beam swing form the circle then, increased the scope that the light shines, form the stirring effect to the welding seam molten bath during welding operation moreover, be favorable to the gas in the welding seam molten bath to spill over.

The reflector 4 is arranged on the light emergent side of the wedge-shaped lens 8, and the reflector 4 is fixedly connected to the inside of the bent part of the welding head shell 1. The reflector 4 with a certain angle can change the forward and reverse directions of the light beam, so that the operation is convenient for an operator to hold.

The focusing lens 5 is arranged below the reflecting lens 4, and the focusing lens 5 is fixedly connected inside the welding end of the welding head shell 1. The focusing lens 5 focuses the light beam to form a point, so that the energy of the laser beam is concentrated, and the welding speed is increased.

And a protective lens 7 is fixedly connected to one side of the focusing lens 5. The laser welding head can produce a large amount of pollutants such as smog in the processing welding process, so the protective lens 7 can protect the internal components of the equipment while transmitting light beams, and can work stably for a long time, and the later maintenance cost of the laser equipment can be reduced.

An adjusting knob 9 is further arranged outside the welding head shell 1. The welding gun head is convenient to replace in the later period.

The working principle is as follows: the laser beam is shot into the interior of the welding head shell 1 from the tail end of the welding head shell 1, the interior of the welding head shell 1 is sequentially provided with a collimating lens 2, a refraction rotating unit 3, a reflecting lens 4, a focusing lens 5 and a protective lens 7, the refraction rotating unit 3 comprises a wedge-shaped lens 8 and a hollow brushless motor 6, the incident laser beam is collimated into parallel light beams through the collimating lens 2 and then is shot out, the light beams are refracted through the wedge-shaped lens 8 to be eccentric, the hollow brushless motor 6 is used for driving the wedge-shaped lens 8 to rotate, the laser beam swings to form a circle, the irradiation range of the light beams is enlarged, the light beams are reflected by the inclined reflecting lens 4 for a certain angle, the laser beams can be projected onto a working surface, the laser welding is carried out while being held by an operator, and finally, the laser beams after the range is enlarged are converged into one point through the focusing function of the focusing lens 5, the temperature of welding point has been improved, make it to accelerate weldment work, 5 outgoing light one side fixedly connected with protective glass pieces 7 of focus lens, because laser welding head can produce pollutants such as a large amount of smog in the welding process of processing, so protective glass pieces 7 can the inside components and parts of protective equipment when seeing through the light beam to can long-term stable work, can reduce laser equipment's later maintenance cost, rotatory adjust knob can conveniently adjust the welding rifle head.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hand-held type laser welding joint structure, its characterized in that includes soldered connection casing (1), soldered connection casing (1) is the crooked form of cavity, soldered connection casing (1) is inside to be equipped with collimating lens (2), refraction rotary unit (3), reflection mirror (4) and focus lens (5) in proper order.

2. The hand-held laser weld joint structure of claim 1, wherein: the collimating lens (2) is fixedly connected to the inner part of the handheld end of the welding head shell (1).

3. The hand-held laser weld joint structure of claim 1, wherein: refraction rotary unit (3) are established in light outgoing one side of collimating lens (2), refraction rotary unit (3) are including wedge lens (8) and hollow brushless motor (6), the inside one end of hollow brushless motor (6) fixed connection in the handheld end of soldered connection casing (1), one side at hollow brushless motor (6) is established in wedge lens (8), wedge lens (8) fixed connection is in hollow brushless motor (6) rotating part.

4. The hand-held laser weld joint structure of claim 1, wherein: the reflection lens (4) is arranged on the light emitting side of the wedge-shaped lens (8), and the reflection lens (4) is fixedly connected to the inside of the bent part of the welding head shell (1).

5. The hand-held laser weld joint structure of claim 1, wherein: the focusing lens (5) is arranged below the reflecting lens (4), and the focusing lens (5) is fixedly connected inside the welding end of the welding head shell (1).

6. The hand-held laser weld joint structure of claim 5, wherein: and one side of the focusing lens (5) is fixedly connected with a protective lens (7).

7. The hand-held laser weld joint structure of claim 1, wherein: and an adjusting knob (9) is also arranged outside the welding head shell (1).