Self-heat-dissipation laser welding gun main body

Abstract

The utility model provides a self-heat-dissipation laser welding gun body, and belongs to the technical field of laser welding guns. The self-heat-dissipation laser welding gun body comprises a body gun barrel and a body gun handle which are integrally formed, a gas path pipeline and a water path pipeline are arranged on the body gun handle, a gas return funnel is installed at the position of a gun head in a gun barrel cavity of the body gun barrel, the caliber of the gas return funnel is gradually reduced from front to back, and a first lens groove and a second lens groove are formed in the rear side of the gas return funnel. A plurality of cooling fins are arranged on the outer side wall of the main gun barrel on the rear side of the second lens groove, are evenly arranged at equal intervals and are integrally formed with the main gun barrel. According to the utility model, the main gun barrel is self-cooled through the cooling fins, so that the welding gun has the advantage of enhancing the cooling effect of the welding gun main body.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser welding guns, and particularly relates to a self-heating laser welding gun body. Background Art

[0002] Laser welding is the use of high-energy laser pulses to locally heat a small area of ​​the material. The energy of the laser radiation diffuses into the interior of the material through heat conduction, melting the material to form a specific molten pool. It is mainly used for welding thin-walled materials and precision parts. The laser welding gun is a small handheld tool for laser welding, suitable for small batches, irregular, and spatial welds.

[0003] The interior of the laser welding gun cavity under the prior art is generally cooled by water cooling, and the laser welding gun body is provided with both gas channels and liquid channels. For example, as shown in the patent of a cast handheld laser welding head disclosed in application number 202220673178.2, an air path for ventilation and a water path for water are provided on the one-piece welding gun body. This heat dissipation method can effectively dissipate heat at the gun handle of the welding gun body, but the heat dissipation effect on the gun barrel is limited. Utility Model Content

[0004] The utility model aims to provide a self-heating laser welding gun body in view of the above-mentioned problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A self-heating laser welding gun body, comprising an integrally formed main gun barrel and a main gun handle, wherein the main gun handle is provided with an air pipeline and a water pipeline, wherein the water pipeline is longer than the air pipeline;

[0006] A return air funnel is installed at the gun head in the barrel cavity of the main gun barrel, and the caliber of the return air funnel gradually decreases from front to back. A first lens groove and a second lens groove are opened on the main gun barrel at the rear side of the return air funnel, and a plurality of heat sinks are arranged on the outer side wall of the main gun barrel at the rear side of the second lens groove. The heat sinks are evenly arranged at equal distances and are integrally formed with the main gun barrel.

[0007] In the above-mentioned self-heat dissipation laser welding gun body, a U-shaped groove is provided outwardly on the gun head at the outer edge of the return air funnel.

[0008] In the above-mentioned self-heating laser welding gun body, the main gun barrel is provided with side grooves starting from the gun head and surrounding the outer contours of the first lens groove and the second lens groove on the side surface of the main gun barrel.

[0009] In the above-mentioned self-heat dissipating laser welding gun body, a positioning protrusion is formed at the tail of the main gun barrel, and a positioning bolt hole is opened on the positioning protrusion.

[0010] In the above-mentioned self-heat dissipation laser welding gun body, a connecting seat is integrally formed on the bottom of the main gun handle, and a plurality of connecting bolt holes are circumferentially arranged at equal distances on the connecting seat.

[0011] Compared with the prior art, the utility model provides a self-heating laser welding gun body, which forms self-heating at the gun barrel by integrally forming a heat sink on the main gun barrel, thereby further enhancing the heat dissipation effect of the welding gun body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the structural diagram of the main body of the self-heating laser welding gun. Figure 1 ;

[0013] Figure 2 This is the structural diagram of the main body of the self-heating laser welding gun. Figure 2 ;

[0014] In the above figure, 100, main gun barrel; 110, gun head; 111, air return funnel; 112, U-shaped groove; 121, first lens groove; 122, second lens groove; 130, heat sink; 140, positioning protrusion; 141, positioning bolt hole; 150, side groove; 200, main gun handle; 210, air pipeline; 220, water pipeline; 230, connecting seat; 231, connecting bolt hole. DETAILED DESCRIPTION

[0015] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0016] like Figure 1 to Figure 2 As shown, the main body of the self-heating laser welding gun includes a main gun barrel 100 and a main gun handle 200. The main gun barrel 100 is provided with a gun head 110, a first lens groove 121, a second lens groove 122, a heat sink 130 and a positioning protrusion 140 from front to back, and the main gun handle 200 is provided with an air pipeline 210 and a water pipeline 220. The main gun barrel 100 and the main gun handle 200 are designed as an integrated molding and are made by casting. Compared with the traditional assembled welding gun body, it is not easy to leak air or water in daily operation and after collision.

[0017] The main gun barrel 100 has a tubular hollow structure inside, and a return air funnel 111 is installed at the gun head 110 in the gun barrel cavity, and the diameter of the return air funnel 111 gradually decreases from front to back. Since the laser welding gun has a high temperature when it is running, it will heat and expand the surrounding air. The return air funnel 111 can form a reflux to prevent gas from being sucked back, so as not to affect the lens installed on the rear side.

[0018] The front end of the gun head 110 of the main gun barrel 100 should be installed with an insulating pad. To facilitate the fixation of the insulating pad, a U-shaped groove 112 is opened on the gun head 110 at the outer edge of the return air funnel 111. The insulating pad has a protruding structure and is installed in the U-shaped groove 112, which can play a role in limiting and fixing.

[0019] A first lens groove 121 and a second lens groove 122 are provided on the main barrel 100 at the rear side of the return air funnel 111. The first lens groove 121 and the second lens groove 122 are both opened upward, and a protective lens drawer frame and a focusing lens drawer frame are respectively embedded and installed from top to bottom. A protective lens is installed on the protective lens drawer frame of the first lens groove 121, and a focusing lens is installed on the focusing lens drawer frame of the second lens groove 122.

[0020] A plurality of heat sinks 130 are arranged on the outer side wall of the main gun barrel 100 at the rear side of the second lens groove 122. The heat sinks 130 are evenly arranged at equal distances on both sides of the main gun barrel 100 and are formed integrally with the main gun barrel 100. The length and height of the heat sink 130 extending outward should not exceed the length and height of the front lens groove, so as to facilitate the installation of the entire welding gun body. The arrangement of the heat sink 130 enables the main gun barrel 100 to form self-heating, further enhancing the heat dissipation effect of the entire welding gun body.

[0021] A positioning protrusion 140 is formed on the outer side wall of the tail of the main gun barrel 100, and a positioning bolt hole 141 is provided on the positioning protrusion 140. Since the tail of the main gun barrel 100 is connected to the galvanometer motor and the motor protection cover, the positioning protrusion 140 can play a role of limiting connection and fixing when it is installed.

[0022] The main gun handle 200 is connected to the bottom of the main gun barrel 100 in an inclined manner, and an air pipeline 210 for ventilation and a water pipeline 220 for water flow are formed from the connection point of the two along the direction of the main gun handle 200, wherein the water pipeline 220 is longer than the air pipeline 210. The air pipeline 210 is connected to the external air pipe, and its shorter length can reduce the difficulty of processing and make the gas flow at the air pipeline 210 more stable; an independent circulating water pipe is provided in the water pipeline 220, so that the welding gun body can achieve better heat dissipation effect through heat exchange when the welding gun body is water-cooled.

[0023] The bottom of the main gun handle 200 is integrally formed with a connecting seat 230 , and the connecting seat 230 is circumferentially provided with a plurality of connecting bolt holes 231 equidistantly arranged. Normally, the number of the connecting bolt holes 231 is three. The main gun handle 200 is fixedly connected to the QBH mechanism and the collimator lens barrel through the connecting seat 230 .

[0024] like Figure 1As shown, the main gun barrel 100 starts from the gun head 110, and a side groove 150 is opened on the side of the main gun barrel 100 around the outer contour of the first lens groove 121 and the second lens groove 122. The opening of the side groove 150 is used to assist in the installation of welding machine switches, safety locks, galvanometer motors and other circuit settings.

[0025] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0026] Although various terms are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A self-heat dissipating laser welding gun body, comprising an integrally formed main gun barrel (100) and a main gun handle (200), wherein the main gun handle (200) is provided with an air pipeline (210) and a water pipeline (220), wherein the water pipeline (220) is longer than the air pipeline (210); It is characterized in that A return air funnel (111) is installed at the gun head (110) in the gun barrel cavity of the main gun barrel (100), and the caliber of the return air funnel (111) gradually decreases from front to back. A first lens groove (121) and a second lens groove (122) are opened on the main gun barrel (100) at the rear side of the return air funnel (111), and a plurality of heat sinks (130) are arranged on the outer side wall of the main gun barrel (100) at the rear side of the second lens groove (122). The heat sinks (130) are evenly arranged at equal distances and are integrally formed with the main gun barrel (100).

2. A self-heat dissipating laser welding gun body according to claim 1, characterized in that: A U-shaped groove (112) is formed on the gun head (110) at the outer edge of the air return funnel (111) facing outward.

3. The self-heat dissipating laser welding gun body according to claim 1, characterized in that: The main gun barrel (100) is provided with a side groove (150) starting from the gun head (110) and surrounding the outer contours of the first lens groove (121) and the second lens groove (122) on the side of the main gun barrel (100).

4. The self-heat dissipating laser welding gun body according to claim 1, characterized in that: A positioning protrusion (140) is formed at the rear of the main gun barrel (100), and a positioning bolt hole (141) is provided on the positioning protrusion (140).

5. The self-heat dissipating laser welding gun body according to claim 1, characterized in that: The bottom of the main gun handle (200) is integrally formed with a connecting seat (230), and the connecting seat (230) is provided with a plurality of connecting bolt holes (231) at equal intervals in the circumferential direction.

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