Handheld laser welding gun

Abstract

The utility model provides a handheld laser welding gun, which belongs to the technical field of laser welding, and comprises a gun body and an optical lens, the gun body comprises a gun handle and a gun body, and the optical lens comprises a collimating lens, a reflecting lens, a focusing lens and a protective lens; the gun body is provided with a dustproof mounting opening for placing the lens drawer, and the gun body is also provided with a dustproof cover plate and a sliding cover, so that through multi-layer protection, the sealing performance of the lens drawer is improved, the influence of external dust on the gun body is reduced, and the service life of the protection lens and the service life of the focusing lens are favorably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to a handheld laser welding gun. Background Art

[0002] Laser welding is a welding method that uses a high-energy laser beam to weld metals together. Due to the simple structure and easy operation of handheld laser welding guns, it has received more and more attention.

[0003] The laser welding gun includes a gun body and an optical lens. The gun body includes a gun handle and a gun body. The gun handle is connected to the main machine, and a nozzle is fixed at the end of the gun body. The optical lens includes a collimating lens, a reflecting lens, a focusing lens and a protective lens. The laser beam enters from the gun handle, passes through the above lenses in sequence, and then is emitted from the nozzle.

[0004] In terms of position distribution, the reflective lens is located at the junction of the gun handle and the gun body, the focusing lens is located inside the gun body, and the protective lens is located between the focusing lens and the nozzle; during the welding process, the protective lens can block the smoke and slag generated by welding, and protect the more expensive focusing lens; although the protective lens is a consumable item, regular cleaning of the protective lens can significantly delay the appearance of black spots on the protective lens and increase the service life of the protective lens.

[0005] In the prior art, a lens drawer is provided on the gun body, and the lens drawer includes a carrying plate and a clamping plate, and the carrying plate is used to fix the protective lens; a mounting hole is opened on the gun body, and the carrying plate is inserted into the mounting hole, and the clamping plate fits the gun body and is fixed to each other by bolts.

[0006] With respect to the above-mentioned related technologies, the inventor believes that the clamping plate is directly exposed to the external environment, and the dust in the external environment can easily contaminate the lens drawer. Especially after the lens drawer is pulled out, the dust in the external environment can easily fall into the mounting hole on the gun body and contaminate the focusing lens. Summary of the invention

[0007] In order to reduce the external dust from falling into the inside of the gun body and reduce the pollution to the focusing lens, the utility model provides a handheld laser welding gun, which comprises a gun body and an optical lens, the gun body comprises a gun handle and a gun body, the optical lens comprises a collimating lens, a reflecting lens, a focusing lens and a protective lens; a dustproof mounting port is provided on the gun body, the dustproof mounting port comprises a dustproof groove and a mounting hole, and the mounting hole is provided on the dustproof groove; a lens drawer is placed in the dustproof mounting port, the lens drawer comprises a carrying plate and a pressing plate, the pressing plate is attached to the dustproof groove, the carrying plate is fixed to the protective lens, and the carrying plate is inserted into the mounting hole; a dustproof cover is rotatably fitted on the dustproof groove, and the dustproof cover is covered above the pressing plate; a sliding cover is slidably fitted on the gun body, and the travel area of ​​the sliding cover covers the dustproof mounting port.

[0008] Optionally, there are two mounting holes, which are arranged along the extension direction of the gun body; and there are also two lens drawers, with each mounting hole corresponding to a lens drawer.

[0009] Optionally, a first partition plate is fixed in the dustproof groove, and the first partition plate is located between the two mounting holes.

[0010] Optionally, a second partition plate is fixed in the dustproof groove, and the rotation axis and the mounting hole of the dustproof cover are respectively located on both sides of the second partition plate.

[0011] Optionally, a gasket is provided in the dustproof groove, and the gasket is located between the pressing plate and the dustproof cover plate.

[0012] Optionally, nail grooves are provided on the gasket and the dust cover.

[0013] Optionally, the inner wall of the sliding cover is adapted to the gun body, a sliding block is fixed on the inner wall of the sliding cover, a sliding groove is provided on the gun body, and the sliding block and the sliding groove are slidably matched along the extension direction of the gun body.

[0014] Optionally, two iron limit plates are fixed on the gun body, and the two limit plates are respectively located on both sides of the dustproof mounting port; magnet plates are attached to both ends of the sliding cover, and the magnet plates and the limit plates are opposite to each other.

[0015] The technical solution of the utility model has the following advantages:

[0016] 1. The utility model arranges the lens drawer through the dustproof mounting opening, and uses a gasket and a dustproof cover plate for sealing, thereby reducing the contact between the lens drawer and the external environment, and the dust in the external environment is not easy to pollute the lens drawer; in addition, when the lens drawer is pulled out, the operator can immediately cover the dustproof cover plate on the mounting hole to reduce dust falling into the mounting hole.

[0017] 2. The utility model is provided with two protective lenses to provide double-layer protection for the focusing lens; in addition, a first partition plate and a second partition plate are provided in the dustproof groove, which is also conducive to hindering the movement of dust and further reducing the impact of dust on the mounting hole.

[0018] 3. The utility model is provided with a sliding cover. By adjusting the position of the sliding cover, the dustproof mounting port can be conveniently opened and closed, which is conducive to the operator to more conveniently insert and remove the lens drawer; in addition, the design of the magnetic plate on the sliding cover can also maintain the state of the sliding cover more stably and reduce the shaking of the sliding cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0021] Figure 2 A partial schematic diagram of exploding the lens drawer;

[0022] Figure 3 A partial schematic diagram of the sliding cover is hidden;

[0023] Figure 4 A schematic diagram showing a sliding cover.

[0024] Explanation of the accompanying drawings: 1. Gun body; 11. Gun handle; 12. Gun body; 121. Dustproof mounting port; 1211. Dustproof groove; 12111. First partition plate; 12112. Second partition plate; 1212. Mounting hole; 122. Slide groove; 123. Limit plate; 13. Nozzle; 2. Optical lens; 21. Protective lens; 3. Lens drawer; 31. Carrying plate; 32. Pressure plate; 4. Gasket; 5. Dustproof cover; 51. Nail groove; 6. Slide cover; 61. Sliding block; 62. Magnet plate. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] This embodiment provides a handheld laser welding gun, referring to Figure 1 and Figure 2 It includes a gun body 1 and an optical lens 2. The gun body 1 includes a gun handle 11 and a gun body 12. The gun handle 11 is connected to the main machine. A nozzle 13 is fixed at the end of the gun body 12. The optical lens 2 includes a collimating lens, a reflecting lens, a focusing lens and a protective lens 21. The laser beam enters from the gun handle 11, passes through the above lenses in sequence, and then is emitted from the nozzle 13.

[0029] Reference Figure 2 A dustproof mounting port 121 is provided on the gun body 12, and the dustproof mounting port 121 includes a dustproof groove 1211 and a mounting hole 1212. The dustproof groove 1211 is provided on the upper surface of the gun body 12, and the mounting hole 1212 is provided on the dustproof groove 1211; a lens drawer 3 is placed in the dustproof mounting port 121, and the lens drawer 3 includes a carrying plate 31 and a clamping plate 32, the clamping plate 32 is attached to the dustproof groove 1211, the carrying plate 31 is fixed to the protective lens 21, and the carrying plate 31 is inserted into the mounting hole 1212; during the welding process, the protective lens 21 located on the carrying plate 31 can block the smoke and welding slag generated by welding, and protect the more expensive focusing lens.

[0030] Reference Figure 2 In the present embodiment, two mounting holes 1212 are provided, and the two mounting holes 1212 are arranged along the extension direction of the gun body 12; two lens drawers 3 are also provided, and each mounting hole 1212 corresponds to a lens drawer 3, and the protection of the double-layer protective lens 21 helps to further enhance the protection capability of the focusing lens.

[0031] Reference Figure 2 and Figure 3 A gasket 4 is arranged in the dustproof groove 1211, and the gasket 4 is covered on the top of the pressing plate 32 to increase the sealing between the lens drawer 3 and the external space; a dustproof cover plate 5 is also rotatably connected in the dustproof groove 1211, and the dustproof cover plate 5 is covered on the top of the gasket 4 to further increase the sealing of the dustproof groove 1211; a nail groove 51 is provided on the gasket 4 and the dustproof cover plate 5, so that the operator can open the dustproof cover plate 5 or take out the gasket 4 conveniently.

[0032] Reference Figure 2 A first partition plate 12111 is fixed in the dustproof groove 1211, and the first partition plate 12111 is located between the two mounting holes 1212. The first partition plate 12111 divides the two mounting holes 1212 into different areas, thereby reducing the cross contamination of dust in different areas; a second partition plate 12112 is also fixed in the dustproof groove 1211, and the rotation axis of the dustproof cover 5 and the mounting hole 1212 are respectively located on both sides of the second partition plate 12112. When the dustproof cover 5 rotates, it is not easy for the dust on the dustproof cover 5 to fall into the area of ​​the mounting hole 1212.

[0033] Reference Figure 1 and Figure 4 A sliding cover 6 is slidably connected to the gun body 12, and the travel area of ​​the sliding cover 6 covers the dustproof mounting port 121; the inner wall of the sliding cover 6 is adapted to the gun body 12, and a slider 61 is fixed to the inner wall of the sliding cover 6, and a sliding groove 122 is opened on the gun body 12, and the slider 61 and the sliding groove 122 are slidably matched along the extension direction of the gun body 12; through the cooperation between the slider 61 and the sliding groove 122, the sliding cover 6 can be slid more stably, and by sliding the sliding cover 6, the switch of the dustproof mounting port 121 can be conveniently realized.

[0034] Reference Figure 1 and Figure 4 Two iron limit plates 123 are fixed on the gun body 12, and the two limit plates 123 are respectively located on both sides of the dustproof mounting port 121, and both ends of the sliding cover 6 are fitted with magnet plates 62, and the magnet plates 62 and the limit plates 123 are opposite to each other; when the sliding cover 6 is covered on the dustproof mounting port 121, the limit plate 123 close to the nozzle 13 fits with the magnet plate 62, and the sliding cover 6 can maintain the coverage of the dustproof mounting port 121 more stably at this time; when the dustproof mounting port 121 needs to be exposed, the sliding cover 6 is slid so that the limit plate 123 away from the nozzle 13 fits with the magnet plate 62, and the sliding cover 6 is kept in a more stable open state.

[0035] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A handheld laser welding gun, comprising a gun body (1) and an optical lens (2), wherein the gun body (1) comprises a gun handle (11) and a gun body (12), and the optical lens (2) comprises a collimating lens, a reflecting lens, a focusing lens and a protective lens (21); characterized in that: The gun body (12) is provided with a dustproof installation opening (121), the dustproof installation opening (121) comprises a dustproof groove (1211) and a mounting hole (1212), and the mounting hole (1212) is provided on the dustproof groove (1211); A lens drawer (3) is placed in the dustproof mounting opening (121), the lens drawer (3) comprising a carrier plate (31) and a pressing plate (32), the pressing plate (32) being attached to the dustproof groove (1211), the carrier plate (31) being fixed to the protective lens (21), and the carrier plate (31) being inserted into the mounting hole (1212); The dustproof groove (1211) is rotatably fitted with a dustproof cover plate (5), and the dustproof cover plate (5) is arranged above the pressing plate (32); A sliding cover (6) is slidably matched on the gun body (12), and the travel area of ​​the sliding cover (6) covers the dustproof installation opening (121).

2. A handheld laser welding gun according to claim 1, characterized in that: There are two mounting holes (1212), which are arranged along the extension direction of the gun body (12); there are also two lens drawers (3), and each mounting hole (1212) corresponds to a lens drawer (3).

3. A handheld laser welding gun according to claim 2, characterized in that: A first partition plate (12111) is fixed in the dustproof groove (1211), and the first partition plate (12111) is located between the two mounting holes (1212).

4. A handheld laser welding gun according to claim 3, characterized in that: A second partition plate (12112) is fixed in the dustproof groove (1211), and the rotation axis of the dustproof cover plate (5) and the mounting hole (1212) are respectively located on both sides of the second partition plate (12112).

5. The handheld laser welding gun according to claim 1, characterized in that: A gasket (4) is arranged in the dustproof groove (1211), and the gasket (4) is located between the pressing plate (32) and the dustproof cover plate (5).

6. A handheld laser welding gun according to claim 5, characterized in that: The gasket (4) and the dust cover plate (5) are both provided with a nail groove (51).

7. The handheld laser welding gun according to claim 1, characterized in that: The inner wall of the sliding cover (6) is matched with the gun body (12), a sliding block (61) is fixed on the inner wall of the sliding cover (6), a sliding groove (122) is provided on the gun body (12), and the sliding block (61) and the sliding groove (122) are slidably matched along the extension direction of the gun body (12).

8. The handheld laser welding gun according to claim 1, characterized in that: Two iron limit plates (123) are fixed on the gun body (12), and the two limit plates (123) are respectively located on both sides of the dustproof installation opening (121); both ends of the sliding cover (6) are fitted with magnet plates (62), and the magnet plates (62) and the limit plates (123) are opposite to each other.

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