An air-cooled handheld laser welding machine

Abstract

A wind-cooled handheld laser welding machine includes a chassis, a laser module is arranged in the chassis, the laser module is connected to a laser gun head through a cable, a radiator is arranged in the chassis, the radiator has a plurality of heat dissipation ducts, a cold row, a water tank, a water pump and a connecting pipe are arranged on the front side of the chassis, the water tank is connected to the radiator, a water inlet pipe is connected to the water pump, a water outlet pipe is connected to the water tank, one end of the connecting pipe is connected to the water tank, the other end of the connecting pipe extends into the cold row and bends and surrounds several times before extending out to connect to the water pump, a cooling fan facing the heat dissipation duct of the radiator is arranged on the rear side of the chassis, the cold row is located on one side of the radiator, a water cooling chamber is arranged in the laser gun head, and the water inlet pipe and the water outlet pipe are respectively connected to the water cooling chamber in the laser gun head through pipelines. The utility model has strong heat dissipation performance, so that the heat generated by the laser gun head during operation can be dissipated in time.

Description

Technical Field

[0001] The utility model relates to a laser welding machine, in particular to an air-cooled handheld laser welding machine. Background Art

[0002] At present, the air-cooled handheld laser welding machines on the market generally have the problem of long-term welding causing the welding gun head to heat up. The higher the power, the more significant the heating problem, which may cause damage to the gun head and affect personal safety. This problem has become an important reason for limiting the development of air-cooled handheld laser welding machines to higher power. Taking the ordinary 2000W air-cooled handheld laser welding machine as an example, the welding gun head currently uses air duct ventilation for heat dissipation. When the full power output is on, the welding gun head will have a heat power of more than ten watts. The heat dissipation by air duct ventilation cannot fully meet the heat dissipation requirements. Heat will accumulate in the gun head. The temperature rise will eventually lead to the inability to continue welding operations. There are huge safety hazards during the heat accumulation period. If the welding gun head components are damaged by high temperature during the heat accumulation process, it may cause personal safety damage to the operator. The welding gun head of the traditional air-cooled handheld laser welding machine is purely air-cooled for heat dissipation. Due to the size and weight of the handheld welding gun head, which should not exceed the comfortable range of human handholding, the heat dissipation is slow and cannot work continuously. The upper limit of heat dissipation is not high and cannot withstand high-power continuous output. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an air-cooled handheld laser welding machine.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A wind-cooled handheld laser welding machine comprises a chassis, wherein a laser module is arranged in the chassis, wherein the laser module is connected to a laser gun head through a cable, wherein a radiator is arranged in the chassis, wherein the radiator has a plurality of heat dissipation ducts, wherein a cold row, a water tank, a water pump and a connecting pipe are arranged on a front side of the chassis, wherein the water tank is installed and connected to the radiator, wherein a water inlet pipe is connected to the water pump, wherein a water outlet pipe is connected to the water tank, wherein one end of the connecting pipe is connected to the water tank, wherein the other end of the connecting pipe extends into the cold row and is bent and wrapped around several times before extending out and being connected to the water pump, wherein a cooling fan facing the heat dissipation duct of the radiator is arranged on a rear side of the chassis, wherein the cold row is located on one side of the radiator, wherein a water cooling cavity is arranged in the laser gun head, wherein the water inlet pipe and the water outlet pipe are respectively connected to the water cooling cavity in the laser gun head through pipelines.

[0006] The laser modules are installed on one side of the heat sink and are distributed side by side.

[0007] The cold row is arranged at one side of the port of the heat dissipation air duct of the radiator.

[0008] The radiator is composed of a plurality of heat sinks stacked at intervals, and a heat dissipation air duct is formed between two adjacent heat sinks.

[0009] The radiator is composed of a plurality of heat sinks arranged at intervals, and the connecting pipes pass through the heat sinks and are fixed to the heat sinks.

[0010] A semiconductor cooling sheet is arranged in the laser gun head.

[0011] At least two heat dissipation fans are provided.

[0012] The utility model adds a radiator and a water-cooling component to the structure of the existing chassis, combines the air-cooling structure, improves the heat dissipation performance, uses the heat dissipation fan to take away the heat on the radiator, and combines water cooling on the basis of air cooling, which can dissipate the heat generated by the laser gun head during operation in time, so that the welding machine has the advantages of high power, long-lasting welding, and good thermal conductivity and heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model with a partial cutaway;

[0014] Figure 2 for Figure 1 A structural diagram from another angle;

[0015] Reference numerals:

[0016] Chassis 1, laser module 2, water outlet pipe 3, water inlet pipe 4, water pump 5, radiator 6, laser gun head 7, water tank 8, connecting pipe 9, radiator 10, cooling fan 11. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0018] In the description of the present utility model, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like are involved, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0019] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] like Figure 1 and 2As shown, an air-cooled handheld laser welding machine comprises a chassis 1, wherein a laser module 2 is arranged in the chassis 1, and the laser module 2 is connected to a laser gun head 7 through a cable, a radiator 10 is arranged in the chassis 1, and a plurality of heat dissipation air ducts are arranged in the radiator 10, a cold row 6, a water tank 8, a water pump 5 and a connecting pipe 9 are arranged on the front side of the chassis 1, the water tank 8 is installed and connected to the radiator 10, a water inlet pipe 4 is connected to the water pump 5, a water outlet pipe 3 is connected to the water tank 8, one end of the connecting pipe 9 is connected to the water tank 8, and the other end of the connecting pipe 9 extends into the cold row 6 and is bent and wrapped around several times before extending out and connecting to the water pump 5, a cooling fan 11 is arranged on the rear end side of the chassis 1 facing the heat dissipation air duct of the radiator 10, the cold row 5 is located on one side of the radiator 10, a water cooling cavity is arranged in the laser gun head 7, and the water inlet pipe 4 and the water outlet pipe 3 are respectively connected to the water cooling cavity in the laser gun head 7 through pipelines. Pour water into the water tank, and then use a water pump to circulate the water between the connecting pipe, the water inlet pipe, the water outlet pipe and the laser gun head. When passing through the radiator, the radiator will absorb the heat from the connecting pipe, and when the water flows into the laser gun head, it will take away part of the heat from the laser gun head, causing the temperature of the water to rise. Then, when it reaches the radiator, it will be exchanged. When the cooling fan is running, it will draw air and draw the wind at the front end of the chassis away. The hot air will be drawn out toward the side of the cooling fan through the cooling air duct of the radiator. The hot air generated on the radiator will be drawn away together, so there is no need to set up a fan for the radiator separately, and the original cooling fan can be used to extract heat.

[0021] The laser modules 2 are installed on one side of the heat sink 10 and are arranged side by side, so as to better absorb the heat generated by the laser modules. The cold row 6 is arranged on one side of the port of the heat dissipation air duct of the heat sink 10 .

[0022] The radiator is composed of a plurality of heat sinks stacked at intervals, and a heat dissipation air duct is formed between two adjacent heat sinks to facilitate the circulation of wind from the front side to the rear side of the chassis.

[0023] The radiator is composed of a plurality of heat sinks arranged at intervals, and the connecting pipes pass through the heat sinks and are fixed to the heat sinks, and the connecting pipes play a fixing role.

[0024] In addition, a semiconductor cooling plate can be provided in the laser gun head to adjust the temperature of the gun head to be constant in the face of more severe temperature environments. In certain usage environments, the gun head needs to be inserted into an environment of 50 to 60 degrees Celsius or even higher temperatures, and the cooling plate can quickly extract the heat in the water circulation.

[0025] The original heat dissipation air duct of the gun head is used to form a water circulation to take away the heat of the gun head, and then the heat is dissipated into the ambient air by the cold row. In addition, in this structure, the cold row is installed near the air inlet of the heat sink of the air-cooled laser, and the heat of the cold row is taken away by the heat dissipation fan. Therefore, the cold row is connected to the heat dissipation system of the air-cooled laser, and the cold row no longer needs to be installed with a separate fan for heat dissipation. Moreover, in the welding gun head, the water circulation is directly carried out using the original air duct, and the existing gun head maintains the original structure without modification. The welding gun head of this new air-cooled handheld laser welding machine is compatible with water cooling and air cooling, and the heat dissipation effect is greatly improved compared with pure air cooling. The problem of insufficient heat dissipation in the prior art is solved.

[0026] The existing gun head can be directly used for water circulation without the need to design a special gun head, so that the gun head can be compatible with both water cooling and air cooling, thus reducing costs.

[0027] By installing a semiconductor refrigeration chip, the gun head can still maintain a constant temperature in harsh environments.

[0028] It should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air-cooled handheld laser welding machine, comprising a chassis, characterized in that: A laser module is arranged in the chassis, and the laser module is connected to the laser gun head through a cable. A radiator is arranged in the chassis, and the radiator has a plurality of cooling air ducts. A radiator, a water tank, a water pump and a connecting pipe are arranged on the front side of the chassis. The water tank is installed and connected to the radiator, a water inlet pipe is connected to the water pump, a water outlet pipe is connected to the water tank, one end of the connecting pipe is connected to the water tank, and the other end of the connecting pipe extends into the radiator and is bent and wrapped around several times before extending out to be connected to the water pump. A cooling fan is arranged on the rear end side of the chassis for the cooling air duct facing the radiator, the radiator is located on one side of the radiator, a water cooling cavity is arranged in the laser gun head, and the water inlet pipe and the water outlet pipe are respectively connected to the water cooling cavity in the laser gun head through pipelines.

2. The air-cooled handheld laser welding machine according to claim 1, characterized in that: The laser modules are installed on one side of the heat sink and are distributed side by side.

3. The air-cooled handheld laser welding machine according to claim 1, characterized in that: The cold row is arranged at one side of the port of the heat dissipation air duct of the radiator.

4. The air-cooled handheld laser welding machine according to claim 1, characterized in that: The radiator is composed of a plurality of heat sinks stacked at intervals, and a heat dissipation air duct is formed between two adjacent heat sinks.

5. The air-cooled handheld laser welding machine according to claim 1, characterized in that: The radiator is composed of a plurality of heat sinks arranged at intervals, and the connecting pipes pass through the heat sinks and are fixed to the heat sinks.

6. The air-cooled handheld laser welding machine according to claim 1, characterized in that: A semiconductor cooling sheet is arranged in the laser gun head.

7. The air-cooled handheld laser welding machine according to claim 1, characterized in that: At least two heat dissipation fans are provided.

Images