CN209954005U

CN209954005U - Pen-type handheld laser welding head and laser welding device

Info

Publication number: CN209954005U
Application number: CN201920353646.6U
Authority: CN
Inventors: 俞贤民; 温俊彪; 陈太学
Original assignee: Suzhou Radium Laser Technology Co Ltd
Current assignee: Suzhou Radium Laser Technology Co Ltd
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2020-01-17
Anticipated expiration: 2029-03-20

Abstract

The utility model discloses a pen-type handheld laser welding head, which comprises a main body, a QBH joint fixedly connected with the upper end of the main body through a connecting piece, and a protective sleeve fixedly connected with the lower end of the main body through a window lens cone, wherein light beams emitted by the QBH joint sequentially penetrate through the connecting piece, the main body and the window lens cone and extend out of the protective sleeve; be equipped with a well cavity in the main part, the cavity intracavity is held and is used for the process the collimation focusing assembly that the light beam that the QBH connects to launch carries out the collimation focus and is used for right the main part carries out the cooling subassembly of cooling down. The beneficial effects of the utility model are mainly embodied in that: the structure is accurate, and the modern design provides a handheld laser welding head of pen-type, and simultaneously, all through threaded connection between each part, the maintenance of being convenient for is changed, greatly improves work efficiency.

Description

Pen-type handheld laser welding head and laser welding device

Technical Field

The utility model relates to the field of welding technique, particularly, especially, relate to a laser welder head and laser welding device are handed to pen type.

Background

Laser welding is an efficient and precise welding method using a focused laser beam as an energy source. The laser light is generated within a laser. After being transmitted by an optical fiber or a flying optical path, the characteristics of the laser beam are adjusted by a lens group of the processing head before the final action and the processing point, and each task is adapted in an optimal state.

The laser processing heads on the market at present are various such as welding heads, cutting heads, quenching heads, cladding heads and the like. To various fields of laser processing. However, the field of processing heads suitable for high-power continuous fiber lasers usable in the field of miniaturization and hand-held type is still lacking. The continuous high-power laser processing heads on the market are large in size and weight, do not have specific clamps for handheld welding, are only suitable for being mounted on equipment such as machine tools and manipulators for processing operation, and are not suitable for handheld flexible welding operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art existence, provide a laser welder head and laser welding device are handed to pen type.

The purpose of the utility model is realized through the following technical scheme:

a pen type handheld laser welding head comprises a main body, a QBH joint fixedly connected with the upper end of the main body through a connecting piece, and a protective sleeve fixedly connected with the lower end of the main body through a window lens barrel, wherein light beams emitted by the QBH joint sequentially penetrate through the connecting piece, the main body and the window lens barrel and extend out of the protective sleeve; be equipped with a well cavity in the main part, the cavity intracavity is held and is used for the process the collimation focusing assembly that the light beam that the QBH connects to launch carries out the collimation focus and is used for right the main part carries out the cooling subassembly of cooling down.

Preferably, the hollow cavity comprises a circular table end and a rectangular end, the bottom surface of the circular table end is tightly attached to the upper surface of the rectangular end, and the diameter of the circular table end is smaller than the length of the rectangular surface; the collimating and focusing assembly comprises a collimating lens and a focusing lens which are arranged in the rectangular end, the collimating lens is positioned between the focusing lens and the circular truncated cone end and is tightly attached to the bottom surface of the circular truncated cone end, and the length of the collimating lens is between the diameter of the bottom surface of the circular truncated cone end and the length of the upper surface of the rectangular end; the collimating lens and the focusing lens are limited by a distance ring, and the outer wall of the distance ring is tightly attached to the inner wall of the hollow cavity; the focusing lens is away from a lens fixing ring used for limiting the collimating lens is fixedly arranged on one end face of the collimating lens, and the lens fixing ring is tightly attached to the inner wall of the hollow cavity.

Preferably, the window lens barrel is fixedly provided with a window lens and is connected to the bottom end of the main body through threads.

Preferably, the cooling assembly at least comprises a sinking groove formed in the main body, and the sinking groove is matched with a cover plate welded on the sinking groove to form a sealed water cooling channel; the main body is also provided with two quick-screwing joints which are communicated with the water-cooling channel, and are used for being connected with an external water source.

Preferably, the lower end of the window lens barrel is connected to the top end of the protective sleeve through threads, a welding clamp and a locking nut are arranged below the protective sleeve, the locking nut is connected to the bottom end of the protective sleeve through threads in a matched mode, and the welding clamp is limited between the welding clamp and the locking nut.

Preferably, both ends of the connecting piece are respectively connected with the main body and the QBH joint through thread fit, and a sealing sleeve is sleeved on the connecting piece.

Preferably, be equipped with a temperature switch that is used for surveying its inside temperature on the QBH connects, be equipped with a button that is used for controlling passive break-make signal in the main part, the button with temperature switch electric connection.

Preferably, the protective sleeve is provided with a connecting joint communicated with external protective gas.

A laser welding device comprising at least a pen-type hand-held laser welding head as defined in any of the above.

The beneficial effects of the utility model are mainly embodied in that:

1. the pen-type handheld laser welding head is precise in structure and novel in design, all parts are connected through threads, maintenance and replacement are facilitated, and working efficiency is greatly improved;

2. the focusing lens and the collimating lens are limited by the distance ring, so that the operation is simple and labor-saving, the working efficiency is greatly improved, the lens cannot be damaged, and the service life of the lens is prolonged;

3. the arrangement of the cooling assembly realizes the heat dissipation of the collimation focusing assembly, stabilizes the focus position and effectively ensures the precision of laser welding processing;

4. has wide applicability and is suitable for various miniature pen-shaped products.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

FIG. 1: the utility model discloses an explosion diagram;

FIG. 2: the utility model discloses a three-dimensional view of a middle connecting piece and a QBH joint;

FIG. 3: the structure of the main body of the utility model is schematically shown;

FIG. 4: the cross-sectional view a-a in fig. 3.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. They may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 4, the utility model discloses a handheld laser welder head of pen type, handheld laser welder head 4 of pen type includes main part 41 at least, the upper end of main part 41 pass through connecting piece 42 and with the QBH joint 43 rigid coupling of optical cable 26 rigid coupling, its lower extreme passes through window lens cone 44 and protective sleeve 45 rigid coupling, the warp the light beam that laser generator 22 launches runs through in proper order QBH joint 43, connecting piece 42, main part 41 and window lens cone 44 and extend and arrange in outside protective sleeve 45. Wherein, the two ends of the connecting piece 42 are respectively connected to the main body 41 and the QBH connector 43 through screw-thread fit, and a sealing sleeve 421 is sleeved thereon. The window lens 441 is fixedly arranged on the window lens barrel 44, and the window lens barrel 44 is connected to the bottom end of the main body 41 through threads. The lower end of the window lens barrel 44 is connected to the top end of the protection sleeve 45 through a screw thread. All adopt threaded connection between QBH connects 43, connecting piece 42, main part 41, window lens cone 44 and the protective sleeve 45, when any damage wherein, only need unscrew it, can realize quick replacement maintenance, greatly improve work efficiency.

In the above, the protection sleeve 45 is provided with a connection joint 453 communicating with an external protection gas. Be equipped with a temperature switch 431 that is used for surveying its inside temperature on the QBH joint 43, be equipped with a button 412 that is used for controlling passive break-make signal on main part 41, button 412 with temperature switch 431 electric connection. A welding clamp 451 and a locking nut 452 are arranged below the protective sleeve 45, and the locking nut 452 is connected to the bottom end of the protective sleeve 45 through thread fit and limits the welding clamp 451 between the two. Specifically, the welding fixture 451 is locked on the protective sleeve 45 through the locking nut 452, the locking nut 452 is loosened, the welding fixture 451 can rotate through threads to move up and down, a preset focal distance is adopted to weld a workpiece, and the focal distance is required to be adjusted according to actual conditions. The locking nut 452 is loosened, the welding fixture is moved upwards, the focal position during actual welding is raised, the welding fixture 451 is moved downwards, the focal position during actual welding is lowered, the focal length is finely adjusted by moving the welding fixture 451 upwards and downwards, and therefore the position of the focal point during welding is changed, and a better welding effect is achieved.

The utility model discloses in, be provided with a cavity 411 in the main part 41, cavity 411 includes round platform end 4111 and rectangle end 4112, round platform end 4111's bottom surface with rectangle end 4112's upper surface is hugged closely, and its diameter is less than the length of rectangular surface. A collimating and focusing assembly 46 for collimating and focusing the light beam emitted by the laser generator 22 is disposed in the hollow cavity 411, the collimating and focusing assembly 46 includes a collimating lens 461 and a focusing lens 462 disposed in the rectangular end 4112, the collimating lens 461 is disposed between the focusing lens 462 and the circular truncated cone end 4111 and is closely attached to the bottom surface of the circular truncated cone end 4111, and the length of the collimating lens is between the diameter of the bottom surface of the circular truncated cone end 4111 and the length of the upper surface of the rectangular end 4112. The collimating lens 461 and the focusing lens 462 are limited by a distance ring 463, and the outer wall of the distance ring 463 is closely attached to the inner wall of the hollow cavity; a lens fixing ring 464 for limiting the focusing lens 462 is fixedly arranged on an end surface of the focusing lens 462 far away from the collimating lens 461, and the lens fixing ring 464 is tightly attached to the inner wall of the hollow cavity.

The main body 41 is further provided with a cooling component 47 for cooling the main body 41, the cooling component 47 at least comprises a sinking groove 471 formed in the main body 41, and the sinking groove 471 is matched with a cover plate 472 welded thereon to form a sealed water cooling channel; the main body 41 is further provided with two quick-screwing connectors 473 communicated with the water-cooling channel for connecting with an external water source.

The beneficial effects of the utility model are mainly embodied in that:

the beneficial effects of the utility model are mainly embodied in that:

2. welding jig passes through the lock nut locking on the protective sleeve, loosens lock nut, and welding jig can reciprocate through the screw thread rotation, adopts preset's focus to weld the work piece, according to actual conditions, needs adjust the focus. Loosening a locking nut, moving a welding fixture upwards, lifting the focus position during actual welding, moving the welding fixture downwards, lowering the focus position during actual welding, and finely adjusting the focus through the up-and-down movement of the welding fixture, so that the position of the focus during welding is changed, and a better welding effect is achieved;

3. the focusing lens and the collimating lens are limited by the distance ring, so that the operation is simple and labor-saving for workers, and the working efficiency is greatly improved;

4. the setting of cooling subassembly realizes the heat dissipation to collimation focus subassembly, has stabilized the focus position, the effectual precision of guaranteeing laser welding processing.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. The handheld laser welder head of pen type, its characterized in that: the device comprises a main body (41), a QBH joint (43) fixedly connected with the upper end of the main body (41) through a connecting piece (42) and a protective sleeve (45) fixedly connected with the lower end of the main body (41) through a window lens barrel (44), wherein light beams emitted by the QBH joint (43) sequentially penetrate through the connecting piece (42), the main body (41) and the window lens barrel (44) and extend out of the protective sleeve (45); be equipped with one on main part (41) and well cavity (411), well cavity (411) are put and are used for the process collimation focusing component (46) that the light beam that QBH connects (43) to launch and be used for right main part (41) carry out cooling component (47) of cooling down.

2. The pen handheld laser welding head of claim 1, wherein: the hollow cavity (411) comprises a circular table end (4111) and a rectangular end (4112), the bottom surface of the circular table end (4111) is tightly attached to the upper surface of the rectangular end (4112), and the diameter of the circular table end is smaller than the length of the rectangular surface; the collimating and focusing assembly (46) comprises a collimating lens (461) and a focusing lens (462) which are arranged in the rectangular end (4112), wherein the collimating lens (461) is positioned between the focusing lens (462) and the circular truncated cone end (4111) and is tightly attached to the bottom surface of the circular truncated cone end (4111), and the length of the collimating lens (461) is between the diameter of the bottom surface of the circular truncated cone end (4111) and the length of the upper surface of the rectangular end (4112); the collimating lens (461) and the focusing lens (462) are limited by a distance ring (463), and the outer wall of the distance ring (463) is tightly attached to the inner wall of the hollow cavity; a lens fixing ring (464) used for limiting the focusing lens (462) is fixedly arranged on one end face of the focusing lens (462) far away from the collimating lens (461), and the lens fixing ring (464) is tightly attached to the inner wall of the hollow cavity.

3. The pen handheld laser welding head of claim 2, wherein: the window lens barrel (44) is fixedly provided with a window lens (441), and the window lens barrel (44) is connected to the bottom end of the main body (41) through threads.

4. The pen handheld laser welding head of claim 1, wherein: the cooling assembly (47) at least comprises a sinking groove (471) formed in the main body (41), and the sinking groove (471) is matched with a cover plate (472) welded on the sinking groove to form a sealed water cooling channel; the main body (41) is further provided with two quick screwing joints (473) communicated with the water cooling channel, and the quick screwing joints are used for being connected with an external water source.

5. The pen handheld laser welding head according to claim 3, wherein: the lower end of the window lens barrel (44) is connected to the top end of the protective sleeve (45) through threads, a welding clamp (451) and a locking nut (452) are arranged below the protective sleeve (45), and the locking nut (452) is connected to the bottom end of the protective sleeve (45) through thread matching and limits the welding clamp (451) between the two.

6. The pen handheld laser welding head according to claim 5, wherein: the both ends of connecting piece (42) connect in through screw-thread fit respectively main part (41) and QBH connect (43), and the cover is equipped with sealed sleeve (421) on it.

7. The pen handheld laser welding head according to claim 6, wherein: be equipped with one on QBH connects (43) and be used for surveying temperature switch (431) of its inside temperature, be equipped with one on sealed sleeve (421) and be used for controlling passive break-make signal button (412), button (412) with temperature switch (431) electric connection.

8. The pen handheld laser welding head according to claim 6, wherein: the protective sleeve (45) is provided with a connecting joint (453) communicated with external protective gas.

9. Laser welding device, its characterized in that: including at least a pen-type hand-held laser welding head according to any one of claims 1 to 8.