Handheld laser welding gun with lens detection function

Abstract

The handheld laser welding gun with the lens detection function comprises a gun body, water circulation holes are formed in the lower sides of the front side and the rear side of the left side wall of the gun body, a gas path hole is formed in the middle of the lower side of the left side wall of the gun body, and a photosensitive sensor is embedded in the left side of the front side wall of the gun body. A protective gas guide ring is clamped to the left side of an inner cavity of the gun body, a protective drawer is inserted into the position, located on the right side of the protective gas guide ring, of the top of the gun body, and a protective mirror is clamped to an inner cavity of the protective drawer and fixedly installed through a protective pressing ring. The handheld laser welding gun with the lens detection function has the advantages that the handheld laser welding gun is reasonable in structural design, lenses in the laser welding gun can be effectively protected, cooling treatment can be carried out, accordingly, the lenses in the laser welding gun can be effectively protected, the service life of the laser welding gun can be prolonged, the service life of the laser welding gun can be prolonged, and the service life of the laser welding gun can be prolonged. And meanwhile, the lens is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of laser welding technology, specifically a handheld laser welding gun with lens inspection function. Background Technology

[0002] With the continuous development of industrial technology, welding technology has been widely used in various fields. Traditional welding methods have problems such as low welding precision, high technical requirements for operators, and low welding efficiency. Laser welding, as an advanced welding technology, has advantages such as fast welding speed, high weld quality, small heat-affected zone, and low technical requirements for operators.

[0003] However, existing laser welding heads mostly use temperature probes for lens protection. Due to the large time delay of temperature rise, the protection lens is often severely damaged when the alarm is triggered, which may even lead to damage to the focusing, collimating, reflecting lenses, and laser. To address this, we propose a handheld laser welding gun with lens detection function. Utility Model Content

[0004] The purpose of this invention is to provide a handheld laser welding gun with lens inspection function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a handheld laser welding gun with lens detection function, comprising a gun body, water circulation holes on the lower sides of the front and rear sides of the left side wall of the gun body, an air passage hole in the middle of the lower side of the left side wall of the gun body, a photosensitive sensor embedded in the left side of the front side wall of the gun body, a protective gas guide ring snapped into the left side of the inner cavity of the gun body, a protective drawer inserted into the top of the gun body and to the right of the protective gas guide ring, a protective mirror snapped into the inner cavity of the protective drawer, the protective mirror being fixedly installed by a protective clamping ring, a focusing drawer inserted into the top of the gun body and to the right of the protective drawer, a focusing mirror snapped into the inner cavity of the focusing drawer, the focusing mirror being fixedly installed by a plug seal, a mounting bracket fixedly connected to the inner cavity of the gun body and to the right of the focusing drawer, a reflector snapped into the left side of the mounting bracket, and a galvanometer motor provided on the right side of the inner cavity of the gun body.

[0006] As a further description of the above technical solution:

[0007] A positioning bushing is engaged with the right side of the inner cavity of the gun body, a nylon bushing is engaged with the inner cavity of the positioning bushing, the galvanometer motor is engaged with the inner cavity of the nylon bushing, and a motor protective shell is engaged with the right side wall of the gun body.

[0008] As a further description of the above technical solution:

[0009] A trigger cover is fixedly connected to the upper side of the left side wall of the gun body, and a QBH connector is snapped into the bottom of the gun body. The QBH connector is an integrated fiber laser collimation structure.

[0010] As a further description of the above technical solution:

[0011] The gun body has a water pipe inside, which is connected to the water circulation hole. The gun body also has an air channel inside, located around the protective gas guide ring, which is connected to the air hole.

[0012] As a further description of the above technical solution:

[0013] An insulating plate is placed on the left side wall of the gun body, and a wire feeding mounting bracket is fixedly connected to the left side wall of the gun body and to the left of the insulating plate.

[0014] As a further description of the above technical solution:

[0015] The inner cavity of the wire feeding mounting bracket is fitted with an anti-collision chuck. A scale tube is inserted into the left side of the inner cavity of the anti-collision chuck. A locking nut is sleeved on the right side of the outer wall of the scale tube, and the locking nut is screwed onto the outer wall of the anti-collision chuck.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This handheld laser welding gun with lens detection function has an air passage that allows air to enter through the air passage. The protective gas is then evenly formed into an air curtain by the protective gas guide ring and blown onto the protective lens to prevent splashing and dust contamination of the protective lens. The gas is also blown onto the weld seam through the scale tube, thus protecting the weld seam. At the same time, water enters through the water passage through the water passage inside the gun body to cool the heat of the welding head through water circulation. Furthermore, a photosensitive sensor is used to collect the scattered light signal caused by lens contamination and use this as a basis for judging whether the lens is contaminated. The lens can be replaced by pulling it out. This effectively protects the internal lens of the laser welding gun, cools it down, and facilitates lens replacement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a handheld laser welding gun with lens detection function proposed in this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of a handheld laser welding gun with lens inspection function proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the front cross-sectional structure of a handheld laser welding gun with lens detection function proposed in this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of a protective drawer for a handheld laser welding gun with lens inspection function proposed in this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the focusing drawer of a handheld laser welding gun with lens detection function proposed in this utility model.

[0022] In the diagram: 100, Gun body; 101, Trigger cover; 102, QBH connector; 103, Water circulation hole; 104, Gas passage hole; 105, Photosensitive sensor; 110, Protective gas guide ring; 120, Protective drawer; 121, Protective lens; 130, Focusing drawer; 131, Focusing lens; 140, Mounting bracket; 141, Reflector; 150, Positioning bushing; 151, Nylon bushing; 152, Galvanometer motor; 160, Motor protective housing; 170, Insulating board; 180, Wire feed mounting bracket; 190, Anti-collision chuck; 191, Scale tube; 192, Locking nut. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] This invention provides a handheld laser welding gun with lens inspection function, which can effectively protect the internal lens of the laser welding gun, perform cooling treatment, and facilitate lens replacement. Please refer to [link / reference]. Figure 1-5 , including the gun body 100;

[0027] Please refer to it again. Figure 1-5 Water circulation holes 103 are opened on the lower sides of the front and rear sides of the left side wall of the gun body 100. An air passage hole 104 is opened in the middle of the lower side of the left side wall of the gun body 100. A photosensitive sensor 105 is embedded in the left side of the front side wall of the gun body 100. A protective gas guide ring 110 is snapped into the left side of the inner cavity of the gun body 100. A protective drawer 120 is inserted into the top of the gun body 100 and to the right of the protective gas guide ring 110. A protective lens 121 is snapped into the inner cavity of the protective drawer 120 and is fixedly installed by a protective clamping ring. A focusing drawer 130 is inserted into the top of the gun body 100 and to the right of the protective drawer 120. A focusing lens 131 is snapped into the inner cavity of the focusing drawer 130 and is fixedly installed by a plug seal. A mounting bracket 140 is fixedly connected to the right side of the gun body 100. A reflector 141 is snapped onto the left side of the mounting bracket 140. A galvanometer motor 152 is provided on the right side of the inner cavity of the gun body 100. Air is introduced through the air passage 104, and then the protective gas is evenly formed into an air curtain by the protective gas guide ring 110 and blown towards the protective mirror 121 to prevent splashing and dust from contaminating the protective mirror 121. The gas is also blown towards the weld seam through the scale tube 191 to protect the weld seam. At the same time, water is introduced through the water pipe 103 and the heat of the welding head is cooled by water circulation through the water pipe inside the gun body 100. The photosensitive sensor 105 is used to collect the scattered light signal caused by lens contamination and use it as the basis for judging whether the lens is contaminated. The lens can be replaced by pulling it out.

[0028] In summary, this method effectively protects the internal lens of the laser welding gun, provides cooling, and facilitates lens replacement.

[0029] Please see Figure 1-3A positioning bushing 150 is engaged with the right side of the inner cavity of the gun body 100. The positioning bushing 150 is used to install the nylon bushing 151. The nylon bushing 151 is engaged with the inner cavity of the positioning bushing 150. The nylon bushing 151 is used to install the galvanometer motor 152. The galvanometer motor 152 is engaged with the inner cavity of the nylon bushing 151. A motor protective shell 160 is engaged with the right side wall of the gun body 100. The motor protective shell 160 is used to protect the galvanometer motor 152.

[0030] Please refer to it again. Figure 1-3 A trigger cover 101 is fixedly connected to the upper side of the left side wall of the gun body 100. The trigger cover 101 is used to install the starting trigger. A QBH connector 102 is snapped into the bottom of the gun body 100, and the QBH connector 102 is an integrated fiber laser collimation structure.

[0031] Please refer to it again. Figure 1-3 The gun body 100 has a water pipe inside, and the water pipe is connected to the water circulation hole 103. The water circulation hole 103 is used for water intake. The gun body 100 has an air passage inside and around the protective gas guide ring 110, and the air passage is connected to the air passage hole 104. The air passage hole 104 is used for air intake.

[0032] Please refer to it again. Figure 1-3 An insulating plate 170 is placed on the left side wall of the gun body 100. The insulating plate 170 is used for insulation protection. A wire feeding mounting bracket 180 is fixedly connected to the left side wall of the gun body 100 and to the left of the insulating plate 170. The wire feeding mounting bracket 180 is used to install welding wire parts.

[0033] Please refer to it again. Figure 1-3 An anti-collision chuck 190 is snapped into the inner cavity of the wire feeding mounting bracket 180. The anti-collision chuck 190 is used to protect the scale tube 191. The scale tube 191 is inserted into the left side of the inner cavity of the anti-collision chuck 190. A locking nut 192 is sleeved on the right side of the outer wall of the scale tube 191. The locking nut 192 is screwed into the outer wall of the anti-collision chuck 190. The locking nut 192 is used to lock the scale tube 191.

[0034] In practical use, when using the laser welding gun, those skilled in the art hold the gun body 100, pass the welding wire through the wire feed mounting bracket 180, and adjust it to begin welding. During the operation of the laser welding gun, the gas passage 104 allows air to enter through the gas passage, and the protective gas is then evenly distributed into an air curtain by the protective gas guide ring 110, blowing it towards the protective mirror 121 to prevent splashing and dust contamination of the protective mirror 121. The gas is also blown towards the weld seam through the scale tube 191. Simultaneously, as the temperature rises during the operation of the laser welding gun, water enters through the water circulation hole 103 through the water passage pipe, flowing through the gun body 100. The internal water pipes cool the welding head by circulating water, and the photosensitive sensor 105 collects the scattered light signal caused by lens contamination to indicate whether the lens is contaminated. If contaminated, the protective drawer 120 is pulled out and the protective clamping ring is rotated out. After replacing the protective lens 121, the protective clamping ring is rotated to tighten, and then the protective drawer 120 is installed to complete the replacement of the protective lens 121. At the same time, the focusing drawer 130 is pulled out and the plug seal is removed. After replacing the focusing lens 131, the plug seal is installed and then the focusing drawer 130 is installed to complete the replacement of the focusing lens 131.

[0035] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0036] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A handheld laser welding gun with lens inspection function, characterized in that: The gun body (100) includes a water circulation hole (103) on the lower sides of the front and rear sides of the left side wall, an air passage hole (104) in the middle of the lower side of the left side wall, a photosensitive sensor (105) embedded in the left side of the front wall, a protective gas guide ring (110) snapped into the left side of the inner cavity of the gun body (100), a protective drawer (120) inserted into the top of the gun body (100) and to the right of the protective gas guide ring (110), a protective mirror (121) snapped into the inner cavity of the protective drawer (120), and the protective... The scope (121) is fixedly installed by a protective clamping ring. A focusing drawer (130) is inserted into the top of the gun body (100) and on the right side of the protective drawer (120). A focusing scope (131) is snapped into the inner cavity of the focusing drawer (130). The focusing scope (131) is fixedly installed by a plug seal. A mounting bracket (140) is fixedly connected to the inner cavity of the gun body (100) and on the right side of the focusing drawer (130). A reflector (141) is snapped into the left side of the mounting bracket (140). A galvanometer motor (152) is provided on the right side of the inner cavity of the gun body (100).

2. The handheld laser welding gun with lens inspection function according to claim 1, characterized in that: A positioning bushing (150) is engaged with the right side of the inner cavity of the gun body (100), a nylon bushing (151) is engaged with the inner cavity of the positioning bushing (150), the galvanometer motor (152) is engaged with the inner cavity of the nylon bushing (151), and a motor protective shell (160) is engaged with the right side wall of the gun body (100).

3. A handheld laser welding gun with lens inspection function according to claim 1, characterized in that: A trigger cover (101) is fixedly connected to the upper side of the left side wall of the gun body (100), and a QBH connector (102) is snapped into the bottom of the gun body (100), and the QBH connector (102) is an integrated structure of fiber laser collimation.

4. A handheld laser welding gun with lens inspection function according to claim 1, characterized in that: The gun body (100) is provided with a water pipe inside, and the water pipe is connected to the water circulation hole (103). The gun body (100) is provided with an air channel inside and around the protective gas guide ring (110), and the air channel is connected to the air hole (104).

5. A handheld laser welding gun with lens inspection function according to claim 1, characterized in that: An insulating plate (170) is placed on the left side wall of the gun body (100), and a wire feeding mounting bracket (180) is fixedly connected to the left side wall of the gun body (100) and to the left of the insulating plate (170).

6. A handheld laser welding gun with lens inspection function according to claim 5, characterized in that: The inner cavity of the wire feeding mounting bracket (180) is fitted with an anti-collision chuck (190). A scale tube (191) is inserted into the left side of the inner cavity of the anti-collision chuck (190). A locking nut (192) is sleeved on the right side of the outer wall of the scale tube (191), and the locking nut (192) is screwed onto the outer wall of the anti-collision chuck (190).

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