CN114346432A

CN114346432A - Laser welding gun

Info

Publication number: CN114346432A
Application number: CN202210042969.XA
Authority: CN
Inventors: 杜军豪; 闫继太
Original assignee: Shenzhen Youkong Laser Technology Co ltd
Current assignee: Shenzhen Youkong Laser Technology Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-04-15

Abstract

The application provides a laser welding gun, include: a housing having a light path channel formed therein; the first lens is arranged at the light path channel and can be rotatably arranged, so that the first lens can rotate around a preset center or a preset axis to change a light guide angle; the driving parts can respectively drive the first lenses, each driving part is limited to have a corresponding lens rotating direction, the first lenses can rotate around a preset center or a preset axis along the corresponding lens rotating direction under the driving of the driving parts, and the lens rotating directions limited by at least two driving parts are different. The laser welding gun provided by the scheme can flexibly adjust laser, and is high in adjustment precision and high in response speed.

Description

Laser welding gun

Technical Field

The application relates to a laser welding rifle field particularly, relates to a laser welding rifle.

Background

The laser welding gun is a device for welding by heating a material to form a molten pool by using high-energy laser, and provides higher requirements for laser adjustability, adjustment accuracy and the like of the existing laser welding gun in order to guarantee welding quality and accuracy.

Disclosure of Invention

In order to solve at least one of the above technical problems, an object of the present application is to provide a laser welding gun, which can flexibly adjust laser, and has high adjustment precision and fast response speed.

In order to solve the technical problem, the following technical scheme is adopted in the application:

an embodiment of one aspect of the present application provides a laser welding gun, comprising: the device comprises a shell, a light path channel and a light source, wherein the light path channel is formed in the shell; the first lens is arranged at the light path channel and can be rotatably arranged, so that the first lens can rotate around a preset center or a preset axis to change a light guide angle; the driving parts can respectively drive the first lenses, each driving part is limited with a corresponding lens rotating direction, the first lenses can rotate around the preset center or the preset axis along the corresponding lens rotating direction under the driving of the driving parts, and the lens rotating directions limited by at least two driving parts are different.

According to a technical scheme of the application, the driving parts specifically comprise a first driving part and a second driving part, and the first driving part and the second driving part can respectively drive the first lens to rotate around a first preset axis; the rotation direction of the first lens when the first lens is driven to rotate by the first driving part is opposite to the rotation direction of the first lens when the first lens is driven to rotate by the second driving part.

According to a technical scheme of the application, the driving parts specifically comprise a third driving part and a fourth driving part, the third driving part and the fourth driving part can respectively drive the first lens to rotate around a second preset axis, and the first preset axis and the second preset axis are intersected or form a non-coplanar straight line included angle; the rotation direction of the first lens driven by the third driving piece is opposite to the rotation direction of the first lens driven by the fourth driving piece.

According to one aspect of the present application, at least one of the plurality of driving members is a linear driving member; or one of the first driving part and the second driving part is an electric driving part, and the other one is an elastic part; or one of the third driving piece and the fourth driving piece is an electric driving piece, and the other one is an elastic piece.

According to one technical scheme of the application, at least one driving piece in the plurality of driving pieces is a magnetic suspension driving piece; the magnetic levitation drive comprises: the first component is arranged in association with the first lens, and when the first component moves, the first lens is driven to rotate around the preset center or the preset axis; the second component is configured to be capable of being in electromagnetic induction with the first component under a preset non-contact state between the first component and the second component, so that a force for driving the first component to move is generated between the first component and the second component.

According to a technical scheme of this application, laser welding rifle still includes: the detection piece or pieces are used for detecting angle parameters, optical parameters or pressure parameters and sending out corresponding signals according to detection results to respond.

According to one technical scheme of the application, the optical path channel comprises a first channel and a second channel, an emergent port is formed at one end of the first channel, an incident port is formed at one end of the second channel, the other end of the first channel and the other end of the second channel are in transition to form an included angle structure, one side of the included angle structure is concave, an opening is formed in the other side of the included angle structure, and the first lens is arranged at the opening; the first lens comprises a reflector, the reflector is provided with a reflector surface and a back surface, the reflector surface faces the light path channel, and the back surface faces a plurality of setting positions of the driving piece.

According to a technical scheme of this application, laser welding rifle still includes: the bracket is positioned between the first lens and the driving parts and is connected with the first lens and the driving parts, and a rotary connecting structure is arranged on the bracket; the cover body is connected with the shell, the cover body is connected with the rotating connection structure, the cover body and the support enclose an accommodating space, and the driving pieces are located in the accommodating space.

According to one technical scheme of the application, the laser welding gun further comprises a sealing element, wherein the sealing element is configured to seal a gap between the cover body and the shell, a limiting groove is formed in one of the cover body and the shell, and a part of the sealing element is located in the limiting groove; and/or the rotating connecting structure comprises a joint bearing, and a matching groove matched with the joint bearing is arranged on the cover body; and/or the rotating connection structure is positioned on one side of the support, an extension arm is transited between the rotating connection structure and the support, the driving parts are circumferentially arranged around the extension arm at intervals, and the first lens is arranged on the other side of the support.

According to a technical scheme of this application, laser welding rifle still includes: the gun head is arranged on one side of the light path channel along the emergent direction; the emergent mirror module is arranged between the gun head and the light path channel and comprises a second lens, a cooling seat and a mirror seat, the mirror seat is connected with the cooling seat, and the second lens is limited between the cooling seat and the mirror seat.

In this application, laser welding rifle sets up a plurality of driving pieces, a plurality of driving pieces are used for driving first lens respectively and rotate, first lens has corresponding lens rotation direction under the drive of every driving piece, and it is different that there are at least two lens rotation directions that the driving piece is injectd, therefore, laser welding rifle can realize carrying out the regulation of two at least lens rotation directions to first lens, it is more nimble to laser regulation (for example to the regulation of facula scope or facula position etc. of laser), and drive first lens via different driving pieces, make first lens corresponding along different lens rotation direction rotations, laser regulation's accuracy and response sensitivity are higher, thereby can realize higher welding quality and precision.

Additional aspects and advantages of the present application will be set forth in part in the description which follows, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic perspective view of a light guide module according to an embodiment of the present application;

FIG. 2 is a schematic front view of the light guide module shown in FIG. 1;

FIG. 3 is a schematic top view of the light guide module shown in FIG. 2;

FIG. 4 is a left side view of the light guide module shown in FIG. 2;

FIG. 5 is a schematic perspective view of a light guide module according to an embodiment of the present application;

FIG. 6 is a schematic front view of the light guide module shown in FIG. 5;

FIG. 7 is a schematic top view of the light directing module shown in FIG. 6;

FIG. 8 is a left side view of the light directing module shown in FIG. 6;

FIG. 9 is a schematic front view of a light guide module according to an embodiment of the present application;

FIG. 10 is a schematic top view of the light directing module shown in FIG. 9;

FIG. 11 is a perspective view of a magnetically levitated drive member in accordance with an embodiment of the present application;

FIG. 12 is a schematic front view of the magnetically levitated drive member shown in FIG. 11;

FIG. 13 is a front view schematic illustration of a laser welding gun according to one embodiment of the present application;

fig. 14 is a schematic perspective view of the laser welding gun shown in fig. 13.

FIG. 15 is a schematic cross-sectional view of a laser welding gun according to one embodiment of the present application;

fig. 16 is an enlarged schematic view of the a portion shown in fig. 15.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 16 is:

a laser welding gun 10; a light guide module 100; a support 110; a plate body portion 111; a connecting arm 112; fastening structure 1121; a boss portion 113; a recess 114; a mirror 120; a drive device 130; a first driving member 131; a second driving member 132; a first component 1321; a second member 1322; a third driving member 133; a first member 1331; a second member 1332; the fourth driver 134; the first hinge structure 141; a first protruding shaft 1411; a first shaft hole 1412; a second hinge structure 142; a knuckle bearing 143; a bearing 144; a detecting member A151; a detecting member B152; a detecting member C153; the detecting member C154; a cover 160; a housing 200; an optical path channel 210; a first channel 211; an exit port 2111; a second channel 212; an entrance port 2121; an opening 213; a retaining groove 220; a switch 230; an exit mirror module 300; a focusing mirror 310; a cooling base 320; a lens mount 330; a lance tip 400; an optical fiber 500; a seal 600.

Detailed Description

In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

An embodiment of one aspect of the present application provides a laser welding gun 10, comprising: the housing 200, the first lens, and the plurality of driving members (the first driving member, the second driving member, the third driving member, and the fourth driving member in the drawings can be specifically referred to for understanding, but it is understood that the specific number of the driving members or the structure and form of the driving members are not limited to the illustration shown in the drawings or the example in the embodiment).

Specifically, a light path channel 210 is formed in the housing 200. The light path channel 210 is used for light to pass through.

The first lens is an optical lens. The first lens is specifically, for example, a reflector 120 capable of guiding light in a reflective manner, a refractor capable of guiding light in a refractive manner, or the like. For the sake of clarity, the first lens is mainly used as the reflector 120 in the following description, but it is understood that the skilled person can reasonably select or design the specific type of the first lens according to the specific guiding requirement, and the first lens is not limited to the reflector 120 or the refractor.

The reflecting mirror 120 is disposed at the optical path channel 210, and is used for guiding the light passing along the optical path channel 210. Wherein the reflecting mirror 120 is rotatably disposed such that the reflecting mirror 120 can rotate around a predetermined center or a predetermined axis to change the light guiding angle. Thus, with the rotation of the reflector 120, parameters such as the emitting angle or the emitting position of the light guided by the reflector 120 may change accordingly, so as to realize the adjustment of the laser by rotating the reflector 120, specifically, for example, adjusting the spot range and the spot position of the laser by rotating.

The plurality of driving members can drive the reflecting mirrors 120, respectively. Specifically, each driving member defines a corresponding lens rotation direction, which may be understood as a rotation direction of the reflector 120 when driven by the corresponding driving member to rotate around a preset center or a preset axis, and it may be understood that the preset axes may be the same or different for different lens rotation directions defined by different driving members. Wherein, the rotation directions of the lens limited by the at least two driving parts are different. Like this, laser welding gun 10 can realize carrying out the regulation of two at least lens rotation direction to speculum 120, and is more nimble to laser regulation (for example to the regulation of facula scope or facula position etc. of laser), and rotates along corresponding different lens rotation direction via different driving piece drive speculum 120, and the accuracy and the response sensitivity that laser was adjusted are higher, can promote welding quality and welding precision.

Specific example 1 (see fig. 13 to 16):

as shown in fig. 13, the laser welding gun 10 generally includes a gun head 400, an exit mirror module 300, a housing 200, an optical fiber 500, and the like.

The housing 200 is disposed between the optical fiber 500 and the exit mirror module 300, and the exit mirror module 300 is disposed between the torch head 400 and the housing 200. It is understood that a collimating mirror or the like may be further disposed between the housing 200 and the optical fiber 500 according to specific requirements.

As shown in fig. 14, the housing 200 has a substantially curved included angle shape or curved arc shape, the center of the included angle of the housing 200 to the end of the housing 200 near the optical fiber 500 can be used as a grip (also referred to as a gun handle or a handgrip, etc.) of the laser welding gun 10, and the center of the included angle of the housing 200 to the end of the housing 200 near the gun head 400 can be used as a gun barrel (also referred to as a gun barrel, etc.). A switch 230 is disposed at the concave side of the corner of the housing 200, and the switch 230 is used for controlling the power on/off of the laser welding gun 10 or controlling the output of laser.

As shown in fig. 15, the housing 200 is provided with an optical path passage 210 inside, and the optical path passage 210 is capable of passing light therethrough. The optical path channel 210 has an incident port 2121 and an exit port 2111, the gun head 400 is disposed on one side of the optical path channel 210 along the exit direction, the exit mirror module 300 is disposed between the gun head 400 and the optical path channel 210, the exit port 2111 and the exit mirror module 300 are in optical path conduction, and the incident port 2121 and the optical fiber 500 are in optical path conduction. Thus, light rays can be emitted from the optical fiber 500, pass through the optical path channel 210, the exit mirror module 300 and the like, and then be emitted from the position of the gun head 400 for welding.

As shown in fig. 16, the optical path passage 210 inside the housing 200 is also substantially in the shape of an angle or a curved arc.

More specifically, the optical path channel 210 includes a first channel 211 and a second channel 212, one end of the first channel 211 forms the exit port 2111, one end of the second channel 212 forms the entrance port 2121, and the other end of the first channel 211 and the other end of the second channel 212 transition to form an angle structure. Thus, the light path channel 210 is shaped to be substantially matched with the shape of the housing 200, which can save more product space.

Wherein, one side of the angle structure of the optical path 210 is concave, the other side is provided with an opening 213, and the reflector 120 is disposed at the opening 213. In more detail, the mirror 120 has a mirror 120 side and a back side, the mirror 120 side being disposed toward the light path passage 210, and the back side being disposed toward the plurality of driving members. Thus, the light entering the light path 210 through the entrance port 2121 can be reflected on the surface of the reflector 120 to change the direction and then exit through the exit port 2111, and the position and area of the exit light of the reflected light can be adjusted accordingly by rotating the reflector 120, so that the position and area of the light spot can be adjusted accordingly. In addition, the plurality of driving members are arranged on the backlight side of the reflector 120, so that the thermal influence of the driving members can be reduced, the working environment temperature of the driving members can be better guaranteed, the service life of the driving members can be prolonged, meanwhile, the heat dissipation requirement of the positions of the driving members can be relatively reduced, and the cooling design of the laser welding gun 10 can be simplified. In the design, the opening 213 is arranged on the outer side of the included angle structure of the light path channel 210, the reflector 120 is arranged at the opening 213, the driving part is arranged on the back of the reflector 120, and the space of the included angle transition area between the gun handle and the gun barrel of the laser welding gun 10 is more fully utilized, so that the driving part can be arranged in a mode of following the outward bulge of the included angle shape of the shell 200, on one hand, the heat dissipation of the driving part can be facilitated, on the other hand, the space position requirement of the driving part with various quantities, types or structures can be better met, the type selection of the driving part is more facilitated, meanwhile, the space of the gun handle or the gun barrel cannot be excessively occupied, the miniaturization design of the laser welding gun 10 is more facilitated, the comfortable holding design of the gun handle part and the requirements of the weight design of the gun barrel can also be better considered.

For further example, as shown in fig. 16, the exit mirror module 300 includes a second lens, a cooling base 320 (specifically, an air-cooling base or a water-cooling base), and a mirror base 330, the mirror base 330 is connected to the cooling base 320, and the second lens is confined between the cooling base 320 and the mirror base 330.

By way of more detailed example, the second lens includes a focusing mirror 310, which is positioned downstream in the optical path of the mirror 120 with the focusing mirror 310, for focusing the light to facilitate the formation of the light spot. The lens base 330 is connected to the cooling base 320, for example, the lens base 330 and the cooling base 320 are clamped together by the outer sleeve, and the focusing lens 310 is limited between the lens base 330 and the cooling base 320, which is beneficial to heat dissipation of the focusing lens 310, and can form an integral modular structure including the focusing lens 310, the lens base 330 and the cooling base 320, thereby facilitating assembly of the product.

Of course, the structure of the exit mirror module 300 is not limited to the above illustration, and in other embodiments, the exit mirror module 300 may further include a driving part capable of driving the focusing mirror 310 or the exit mirror module 300 to move, and the like.

By way of further example, the laser welding gun 10 also includes a carriage 110, the carriage 110 being positioned between the reflector 120 and the plurality of drives. By using the bracket 110 between the reflector 120 and the plurality of driving members, the heat transferred to the driving members can be further reduced, the working environment temperature of the driving members can be better improved, and the service life of the driving members can be prolonged.

By way of further example, the support 110 is coupled to a plurality of drive members. By mounting the plurality of driving members on the bracket 110, the plurality of driving members can be positioned uniformly based on the reference of the bracket 110, so that the movement of the reflector 120 under the driving of the driving members is more accurate, the control of the light guide angle and the light guide position of the reflector 120 is more accurate, and the improvement of the welding quality can be further promoted.

For further example, the reflector 120 is disposed on the bracket 110 (e.g., adhered to the bracket 110 or fixed to the bracket 110 by a fastener such as a screw), and the bracket 110 is disposed with a rotary connection structure.

Thus, when the bracket 110 is driven by the driving member, the reflector 120 connected to the bracket 110 can be correspondingly rotated, so as to adjust the light guiding angle and position of the reflector 120, meanwhile, the bracket 110 can be used as a carrier to shape and reinforce the reflector 120, reduce the deformation and the deformation risk of the reflector 120, and the driving member adjusts the light guiding angle of the reflecting mirror 120 by driving the bracket 110 to move, so that the load is not directly applied to the reflecting mirror 120 or the load applied to the reflecting mirror 120 is more uniform after being transmitted through the bracket 110, so that the risk of breakage of the reflecting mirror 120 is reduced, and this, while achieving securing of the reliability of the mirror 120, the driving force for driving the mirror 120 to rotate can be allowed to be designed larger, and, as such, the driving of the mirror 120 is more efficient, further improving the response sensitivity of the laser adjustment.

And the structural design enables the reflector 120 and the preset center or the preset axis when the reflector 120 rotates to be uniformly positioned based on the reference of the bracket 110, so that the relative position precision among the driving piece, the reflector 120 and the preset center or the preset axis when the reflector 120 rotates can be ensured more easily in practice, and the welding precision and quality of the laser welding gun 10 can be better ensured. And all set up speculum 120, a plurality of driving piece and rotation connection structure in support 110, like this, provided the main possibility that relates to the laser and adjust the precision, the part including speculum 120, a plurality of driving piece, rotation connection structure and support 110 assembles into an integral light direction module 100, when considering laser and adjust the precision, is favorable to the flowing water equipment process rationalization of laser welding rifle 10, avoids bottleneck process. In this way, the laser welding gun 10 forms several parts including the gun head 400, the exit mirror module 300, the light guide module 100, the housing 200 and the optical fiber 500, is simple and easy to assemble, and is beneficial to assembly and maintenance of products.

For further example, the laser welding gun 10 further includes a cover 160, the cover 160 is connected to the housing 200, the cover 160 is connected to the rotary connection structure, the cover 160 and the bracket 110 form an accommodation space, and the driving members are located in the accommodation space. Thus, the light guide module 100 has a higher modularization degree, and can further ensure the assembly convenience and the assembly precision, thereby better ensuring the adjustment precision and the adjustment efficiency of the lens angle.

By way of further example, the laser welding gun 10 further includes a seal 600, the seal 600 being configured to seal a gap between the cover 160 and the housing 200. The light leakage phenomenon can be reduced.

By way of further example, a retaining groove 220 is disposed on one of the cover 160 and the housing 200, and a portion of the sealing member 600 is disposed in the retaining groove 220. Can promote packaging efficiency and precision to promote sealing member 600 equipment fastness, promote sealed effect.

More specifically, the end surface of the housing 200 around the opening 213 is provided with a limit groove 220, the sealing member 600 is a sealing ring, and a part of the sealing ring is embedded in the limit groove 220. The cover 160 has a mouth portion, the mouth portion of the cover 160 is opposite to the opening 213, and the edge of the mouth portion is abutted on a portion around the opening 213, so that the cover 160 substantially covers the opening 213 of the housing 200 while pressing the seal ring. The bracket 110 is rotatably connected to the cover 160, at least a portion of the edge of the bracket 110 extends out of the opening, and the portion of the bracket 110 extending out of the opening extends into the opening 213. This structure is more convenient for lid 160 and the assembly process of casing 200, realizes counterpoint blind dress between support 110 and opening 213, has equipment high efficiency and convenience.

Optionally, the laser welding gun includes one or more light directing modules 100.

The light directing module is illustrated in more detail by the various embodiments below.

It is to be understood that the inventive concept of the light guide module and the laser welding gun including the light guide module in the present design are not limited to the following embodiments, which are shown separately, and in fact, the following embodiments may be combined in a non-conflicting manner, which also falls within the scope of the design concept, so that it is reasonably considered that the light guide module or the laser welding gun including the light guide module, which is obtained by combining the following embodiments in a non-conflicting manner, should be reasonably understood as belonging to the protection scope of the present disclosure.

It is understood that the light guide module in the laser welding gun provided in the above embodiment 1 can be incorporated in the embodiment 1 in a non-conflicting manner by the light guide module provided in each of the embodiments described below or by the light guide module combined between the embodiments described below.

Specific example 2 (see fig. 1 to 4):

the present embodiment provides a light guide module. It comprises a support 110, a first lens and a drive 130.

The first mirror is a mirror 120. Of course, in other embodiments, the first lens may also be selected as a focusing lens or a refracting lens according to specific requirements, and the following description mainly takes the reflecting mirror 120 as an example.

As shown in fig. 3, the stand 110 is provided with a first hinge structure 141.

More specifically, for example, the bracket 110 includes a plate body portion 111 and two connecting arms 112.

As shown in fig. 1, the plate body portion 111 is substantially plate-shaped or block-shaped. The mirror 120 is attached to one plate surface of the plate portion 111. Thus, the plate body part 111 and the reflector can have certain mutual supporting and shaping effects, and the deformation of the reflector 120 and the plate body part 111 can be reduced, so that the precision of the light guide angle can be better guaranteed.

Specifically, for example, the reflecting mirror 120 is fixed to the plate body portion 111 by a fastener. More specifically, for example, as shown in fig. 3, four corners of the reflecting mirror 120 are respectively attached to the plate body portion 111 by fasteners. Of course, in other embodiments, the reflector 120 may be embedded in the plate portion 111, or may be bonded to the plate portion 111.

As shown in fig. 4, the two connecting arms 112 are respectively provided with first shaft holes 1412. The opposite ends of the plate body 111 are respectively provided with a first protruding shaft 1411 in a protruding manner, the plate body 111 is located between the two connecting arms 112, and the first protruding shafts 1411 are fitted in the corresponding first shaft holes 1412. In this way, the plate body 111 can rotate around the axis (which can be understood as one of the predetermined axes) of the X1 defined by the first protruding shaft 1411 relative to the connecting arm 112, and the structure of the connecting arm 112 located at both sides of the plate body 111 can not waste the space on the plate body 111, but also enhance the rotation stability of the plate body 111, so that the angle adjustment of the reflector 120 is more stable and accurate.

As shown in fig. 3, the driving device 130 specifically includes a first driving member 131 and a second driving member 132. The first driving member 131 can drive the bracket 110 to rotate around the axis X1 in the first direction. The second driving member 132 can drive the bracket 110 to rotate around the axis X1 along a second direction (the first direction and the second direction are two opposite rotating directions). In this way, the mirror 120 can be driven to rotate around the X1 axis in the first direction via the first driving member 131, and the mirror 120 can be driven to rotate around the X1 axis in the second direction via the second driving member 132, so as to adjust the specific angle of the mirror 120, and thus the spot range or position of the light beam reflected by the mirror 120. Utilize the angle of this structure regulation speculum 120, have good regulation high efficiency, and make the inherent error of driving piece can obtain offsetting to a certain extent, promote the control accuracy of the returning to the positive precision of reseing of speculum 120 and speculum 120 angular position to a certain extent, correspondingly make the facula of laser welding rifle 10 adjust the sensitivity higher, welding quality is more secure.

Optionally, at least one of the first and

second drivers

131, 132 is a magnetic levitation driver. Like this, when realizing driving reflector 120 on support 110 and support 110, the loss of drive resistance is littleer, can adjust reflector 120 angle more high-efficiently, more accurately, and the corresponding facula that makes laser welding gun 10 adjusts the sensitivity higher, and welding quality is more guaranteed.

Optionally, at least one of the first driving element 131 and the second driving element 132 is a linear driving element capable of being extended or shortened, and when the linear driving element is extended or shortened, the bracket 110 can be driven to rotate in a pushing manner. Thus, the driving member has better space adaptability in the laser welding gun 10, and is more beneficial to the volume reduction of the laser welding gun 10.

Further optionally, the first drive member 131 or the second drive member 132 is a linear magnetic levitation drive member.

In more detail, the first driving member 131 and the second driving member 132 are both linear magnetic levitation driving members. The second driving member 132 is taken as an example for detailed illustration:

as shown in fig. 2, the second drive member 132 includes a first component 1321 and a second component 1322. One of the first component 1321 and the second component 1322 is an electromagnet, and the other is a magnet or iron. The first member 1321 is disposed on the bracket 110, and more specifically, the first member 1321 is disposed on a side of the plate body 111 facing away from the reflector 120. The second component 1322 is located on a side of the first component 1321 facing away from the support 110, and the second component 1322 is configured to be capable of generating a force for driving the support 110 to move between the first component 1321 and the second component 1322 due to electromagnetic induction with the first component 1321 when the first component 1321 and the second component 1322 are in a predetermined non-contact state (which can be understood as a case where a distance between the first component 1321 and the second component 1322 is within a predetermined range, so that the distance between the first component 1321 and the second component 1322 is not too large or too small, and a driving force can be effectively and reliably generated between the first component 1321 and the second component 1322 due to electromagnetic induction).

More specifically, for example, when the first component 1321 and the second component 1322 are in a predetermined non-contact state, under the control of an electrical signal, a magnetic attraction force or a magnetic repulsion force can be formed between the first component 1321 and the second component 1322 through electromagnetic induction, and the magnetic attraction force or the magnetic repulsion force enables the first component 1321 and the second component 1322 to move linearly relative to each other along the direction from S1 to S2 to approach or move away from each other, so that the bracket 110 connected to the first component 1321 is correspondingly driven.

Alternatively, as shown in fig. 11 and 12, second component 1322 is generally cylindrical, first component 1321 is generally cylindrical, and first component 1321 is opposite the end face between second component 1322 with a space therebetween. Thus, the electromagnetic induction efficiency is higher, and the fault tolerance rate is also higher.

Alternatively, as shown in fig. 11 and 12, the thickness of the second member 1322 is greater than that of the first member 1321, so that the volume of the first member 1321 moving along with the support 110 is smaller, and the resistance loss and the movement inertia of the support 110 are further reduced, so that the adjustment of the mirror angle is more accurate and the response is more sensitive.

It will be appreciated that the details of the first drive member 131 can be understood identically or similarly to those described above in relation to the second drive member 132 and will not be repeated here.

Further, the first part of the first driving member 131 and the first part of the second driving member 132 are both disposed on the plate body portion 111, and are both located on a side of the plate body portion 111 facing away from the reflector 120.

Alternatively, as shown in fig. 3, the position M1 of the first driver 131 and the position M2 of the second driver 132 are symmetrical about the rotation axis X1 defined by the first protruding shaft 1411. This can facilitate the bracket 110 to move more smoothly under the driving of the first driving member 131 and the second driving member 132, and facilitate the bracket 110 to be stressed evenly, and reduce the risk of deformation of the bracket 110.

Alternatively, as shown in fig. 2, the connection arm 112 is provided to be convex with respect to the plate body portion 111, and the convex direction is a direction of a side of the plate body portion 111 facing away from the mirror 120.

Thus, the first driving member 131, the second driving member 132 and the connecting arm 112 are located on one side of the plate portion 111 and are disposed in a protruding manner relative to the plate portion 111, and the reflector is located on the other side of the plate portion 111 and is attached to the plate portion 111, so that a larger structural space can be provided between the first shaft hole 1412 and the first protruding shaft 1411, and effective clearance avoidance can be facilitated for positions on two horizontal sides of the reflector 120, so that light radiation received by the bracket 110 can be reduced, and heat influence received by the bracket 110 can be reduced.

Furthermore, connecting arm 112 is provided with a fastening structure 1121 for fixing connecting arm 112. Specifically, for example, as shown in fig. 3, the end portion of the connecting arm 112 in the protruding direction is provided with a mounting hole for a fastener to be fitted so that the connecting arm 112 is mounted by the fastener to a corresponding carrier (the carrier is, for example, a cover 160, but may be other components of the laser welding gun 10, such as the housing 200, etc., if necessary).

Optionally, the light guide module 100 further includes one or more detecting elements disposed on the bracket 110 for detecting an angle parameter, an optical parameter or a pressure parameter and sending a corresponding signal according to the detection result.

For example, the detecting element may be a photo-resistor capable of responding based on the brightness or angle of light at the reflector 120, or a corresponding piezo-resistor capable of responding based on the pressure on the bracket 110 or the driving element or the reflector, etc. With the detection member, the first driving member 131 and the second driving member 132 can be feedback-adjusted more accurately, so that the angle control of the mirror 120 is more accurate.

Optionally, the detecting elements of the light guiding module 100 specifically include a detecting element a151 configured with the first driving element 131, and a detecting element B152 configured with the second driving element 132. The detecting member a151 detects the driving force of the first driving member 131 to the bracket 110, and the detecting member B152 detects the driving force of the second driving member 132 to the bracket 110.

Preferably, as shown in fig. 3, the detecting member a151 and the detecting member B152 are respectively disposed on the plate portion 111.

The position of the sensing member a151 and the position of the sensing member B152 are symmetrical about the axis X1 such that the weight of the carriage 110 on both sides of the axis X1 is substantially balanced, such that the inertia of the carriage 110 in the first and second directions is substantially uniform and the movement of the carriage 110 is smoother.

Specific example 3:

the present embodiment provides a light guide module.

The differences from the light guide module in embodiment 2 include:

the light guide module 100 further includes a cover.

The cover and the bracket 110 form an accommodating space, and the driving device 130 is located in the accommodating space and is matched with the cover.

Further, the bracket 110 is coupled to the cover and is rotatable relative to the cover. Thus, the degree of modularization of the light guide module 100 is higher, and the assembling convenience and the assembling precision can be further ensured, so that the adjusting precision and the adjusting efficiency of the angle of the reflector can be better ensured.

In more detail, the fixing structure 1121 of the connecting arm 112 is connected to the cover, and the first driving element 131, the second driving element 132, the detecting element a151, the detecting element B152, and the like are accommodated in the accommodating space between the cover and the bracket 110. The second part 1322 of the second driving member 132 abuts against or is connected to the cover body, so that when the first part and the second part move relatively, the driving force generated by electromagnetic induction between the first part and the second part mainly drives the first part to move, so that the first part moves to approach or leave the second part, and correspondingly drives the bracket 110 to drive the bracket 110. This structure drive is more high-efficient, and light direction module 100's modularization degree is higher, can further ensure equipment convenience and equipment precision to guarantee adjustment precision and adjustment efficiency to the speculum angle better.

Embodiment 4 (see fig. 5 to 8):

the differences from embodiment 2 or embodiment 3 include:

as shown in fig. 5, the bracket 110 is further provided with a second hinge structure 142. And, the driving device 130 further includes a third driving member 133 and a fourth driving member 134 associated with the second hinge structure 142.

More specifically, as shown in fig. 7, the third driving element 133 can drive the bracket 110 to rotate along a third direction around a rotation axis X2 (which can be understood as one of the preset axes) defined by the second hinge structure 142. The fourth driving member 134 can drive the bracket 110 to rotate around the X2 axis along a fourth direction (the third direction and the fourth direction are two opposite rotating directions).

As shown in fig. 7, the rotation axis X1 defined by the first hinge structure 141 intersects with or forms an included angle with the rotation axis X2 defined by the second hinge structure 142. In this way, the direction of rotation of the mirror 120 is enriched, allowing a wider range of adjustment of the laser welding gun 10.

For example, as shown in fig. 7, the bracket 110 further includes two boss portions 113, wherein one boss portion 113 is engaged between one ends of the two connecting arms 112, and the other boss portion 113 is engaged between the other ends of the two connecting arms 112.

In more detail, the two boss portions 113 and the two connecting arms 112 enclose a quadrangular groove 114. The recess 114 is a through structure. The plate body 111 is disposed opposite to the groove 114, the plate body 111 is rotatably connected to the groove 114 via a first hinge structure 141 (i.e., the first protruding shaft 1411 and the first shaft hole 1412), the plate body 111 is disposed with a first driving element 131 and a second driving element 132, and the first driving element 131 and the second driving element 132 pass through the groove 114 from the plate body 111, so as to obtain clearance. Thus, the plate body portion 111 can rotate about the X1 axis relative to the groove 114 by the driving of the first driving member 131 and the second driving member 132.

A third driver 133 and a fourth driver 134 are disposed on the recess 114. More specifically, one of the boss portions 113 is provided with the third driving member 133, the other boss portion 113 is provided with the fourth driving member 134, and the differences between the present embodiment 4 and the above embodiment 2 or embodiment 3 specifically include: in embodiment 4, the connecting arm 112 is not fixedly mounted via the fixing structure 1121, and is not connected to the carrier by the connecting arm 112. In the present embodiment 4, the connecting arm 112 is rotatably connected to the boss portion 113, and what is used for connecting to the carrier is the boss portion 113, and the boss portion 113 is rotatably connected to the carrier (for example, the cover 160, but of course, other components of the laser welding gun 10, such as the housing 200, etc.), by using the second hinge structure 142.

Specifically, as shown in fig. 7, the two boss portions 113 are respectively provided with a second hinge structure 142 for rotatably mounting the groove 114, so that the groove 114 can rotate about the X2 axis under the driving of the third driving member 133 and the fourth driving member 134.

Optionally, the second hinge structure 142 is a second protruding shaft. Preferably, the second protruding shaft is provided with a bearing 144, which can further reduce the rotation loss and also facilitate the improvement of the connection assembling precision at the second hinge structure 142. (of course, the second hinge structure 142 can be a second shaft hole)

Optionally, at least one of the third driver 133 and the fourth driver 134 is a magnetic levitation driver. Like this, when realizing driving the speculum on support 110 and support 110, the driving resistance loss is littleer, can adjust speculum 120 angle more high-efficient, more accurate, and the corresponding facula that makes laser welding rifle 10 adjusts the sensitivity higher, and welding quality is more guaranteed.

Optionally, at least one of the third driving element 133 and the fourth driving element 134 is a linear driving element capable of being extended or shortened, and when the linear driving element is extended or shortened, the bracket 110 can be driven to rotate in a pushing manner. Thus, the driving member has better space adaptability in the laser welding gun 10, and is more beneficial to the volume reduction of the laser welding gun 10.

Further alternatively, the third driving element 133 or the fourth driving element 134 is a linear magnetic levitation driving element.

In more detail, the third driving member 133 and the fourth driving member 134 are both linear magnetic suspension driving members. Taking the third driving member 133 as an example, as shown in fig. 8, the third driving member 133 includes a first part 1331 and a second part 1332, and the first part 1331 and the second part 1332 of the third driving member 133 can be understood by referring to the structural description of the first part 1321 and the second part 1322 of the second driving member 132 in the above embodiment 2, and will not be repeated here.

It will be appreciated that details of the fourth driving member 134 can also be understood in the same or similar manner as described above with respect to the second driving member 132 and will not be repeated here.

Further, the first part of the third driving piece 133 and the first part of the fourth driving piece 134 are both disposed on the boss portion 113, and are both located on a side of the boss portion 113 facing away from the reflecting mirror 120.

Alternatively, the position M1 of the first driver 131 and the position M2 of the second driver 132 are symmetrical about the rotation axis X1 defined by the first protruding shaft 1411. The position P1 of the third driver 133 and the position P2 of the fourth driver 134 are symmetrical about the rotation axis X2 defined by the second protruding shaft. This can facilitate the bracket 110 to move more smoothly under the driving of the first driving member 131 and the second driving member 132, and facilitate the bracket 110 to be stressed evenly, and reduce the risk of deformation of the bracket 110.

Optionally, the axis X1 is perpendicular or in a non-coplanar perpendicular relationship with the axis X2.

Alternatively, as shown in fig. 6, the connection arm 112 is provided to be convex with respect to the plate body portion 111, and the convex direction is a direction of a side of the plate body portion 111 facing away from the mirror 120. The boss portion 113 protrudes in substantially the same direction as the connecting arm 112. E.g., both in the direction of S2. Thus, the first driving element 131, the second driving element 132, the third driving element 133, the fourth driving element 134, the connecting arm 112 and the boss portion 113 are all located on one side of the plate portion 111 and are arranged in a protruding manner relative to the plate portion 111, the reflector is located on the other side of the plate portion 111 and is attached to the plate portion 111, a larger structural space can be provided between the first shaft hole 1412 and the first protruding shaft 1411 and for the second protruding shaft, and effective clearance is favorably avoided at positions around the horizontal direction of the reflector 120, so that light radiation received by the bracket 110 can be reduced, and heat influence on the bracket 110 is reduced.

Further, as shown in fig. 7, the detecting elements of the light guide module 100 further include a detecting element C153 configured with the third driving element 133 and a detecting element D154 configured with the fourth driving element 134. The detecting member C153 detects the driving force of the third driving member 133 to the bracket 110, and the detecting member D154 detects the driving force of the fourth driving member 134 to the bracket 110.

Preferably, the detecting member C153 and the detecting member D154 are respectively disposed on the two boss portions 113, or on the connecting arm 112, or at the junction of the connecting arm 112 and the boss portions 113.

The position of the detecting member C153 and the position of the detecting member D154 are symmetrical about the axis X2, so that the weight of the supporting frame 110 on both sides of the axis X2 is approximately balanced, so that the inertia of the supporting frame 110 in the third and fourth directions is approximately uniform, and the movement of the supporting frame 110 is smoother.

Preferably, as shown in fig. 7, the third driving member 133 and the fourth driving member 134 are spaced along the axis X1, and the first driving member 131 and the second driving member 132 are spaced along the axis X2, so that the force applied to the bracket 110 is more uniform and the movement is smoother.

It is understood that, in the case of the cover 160, the third driving element 133, the fourth driving element 134, the detecting element C153 and the detecting element D154 are also accommodated in the accommodating space, and the cooperation between the third driving element 133 and the fourth driving element 134 and the cover 160 can refer to the first driving element 131 and the second driving element 132, which is not repeated here.

Detailed description of the preferred embodiment 5 (please refer to FIGS. 9 and 10)

The differences from the above embodiment 4 include:

in the present embodiment 5, as shown in fig. 9, the bracket 110 includes a plate body 111, the mirror 120 is disposed on one side of the plate body 111, an extension arm is disposed on the other side of the plate body, and a joint bearing 143 is disposed on the extension arm (the joint bearing 143 may be understood as a predetermined center, and the joint bearing 143 is more specifically, for example, a universal joint). Accordingly, as shown in fig. 16, the cover body 160 is provided with a fitting groove adapted to the joint bearing 143, so that the joint bearing 143 is located in the fitting groove and can rotate in the fitting groove, so that the bracket 110 is rotatably connected to the cover body 160.

The plate body 111 is provided with a first driver 131, a second driver 132, a third driver 133 and a fourth driver 134 circumferentially spaced around the extension arm.

More specifically, as shown in fig. 10, the first driving member 131 and the second driving member 132 are located on one diametrically opposite side of the extension arm, and the third driving member 133 and the fourth driving member 134 are located on the other diametrically opposite side of the extension arm. Optionally, the one radial direction intersects the other radial direction. For example, one radial direction is perpendicular to the other radial direction.

It is to be understood that the more detailed structure of the first driving member 131, the second driving member 132, the third driving member 133 and/or the fourth driving member 134 can be understood in the same or similar way by referring to the detailed description of the driving members in any of the above embodiments, and will not be repeated here.

Further by way of example, the light guide module 100 further includes one or more detecting elements disposed on the bracket 110 for detecting an angle parameter, an optical parameter or a pressure parameter and sending a corresponding signal according to the detection result.

For example, the detecting element may be a photo-resistor capable of responding based on the brightness or angle of light at the reflector 120, or a corresponding piezo-resistor capable of responding based on the pressure on the bracket 110 or the driving element or the reflector, etc. With the detection member, the first, second, third, and fourth driving

members

131, 132, 133, and 134 can be feedback-adjusted more accurately, so that the angle control of the mirror 120 is more accurate.

Alternatively, as shown in fig. 10, the plurality of detecting elements of the light guide module 100 specifically includes a detecting element a151 configured with the first driving element 131, a detecting element B152 configured with the second driving element 132, a detecting element C153 configured with the third driving element 133, and a detecting element D154 configured with the fourth driving element 134.

The detection piece a151 is located between the first driver 131 and the third driver 133 in the circumferential direction.

The detecting member B152 is located circumferentially between the second driving member 132 and the fourth driving member 134.

The detecting member C153 is located between the second driving member 132 and the third driving member 133 in the circumferential direction.

The detecting member D154 is located between the first driving member 131 and the fourth driving member 134 in the circumferential direction.

The detecting member a151 detects the driving force of the first driving member 131 to the bracket 110.

The detecting member B152 detects the driving force of the second driving member 132 to the bracket 110.

The detecting member C153 detects the driving force of the third driving member 133 to the bracket 110.

The detecting member D154 detects the driving force of the fourth driving member 134 to the bracket 110.

It is understood that, in the case where the cover 160 is provided, as shown in fig. 15 and 16, the cover 160 and the bracket 110 enclose an accommodating space, and the first driving member 131, the second driving member 132, the third driving member 133, and the fourth driving member 134, and the detecting member a151, the detecting member B152, the detecting member C153, and the detecting member D154 are located in the accommodating space.

With respect to any of the above embodiments, it will be appreciated that the magnetically levitated drive member is not limited to a linear magnetically levitated drive member. For example, in other embodiments, a magnetic levitation drive of a rotary type may be used, such that the relative motion between the first and second members is a corresponding rotation.

Of course, it is understood that the first and second driving

members

131 and 132 are not limited to magnetic levitation driving members, both of which are linear type. For example, in other embodiments, one of the first driving member 131 and the second driving member 132 may be a linear magnetic levitation driving member, and the other one may be a rotary magnetic levitation driving member, so that the driving directions of the first driving member 131 and the second driving member 132 for the rotation motion of the bracket 110 are opposite. For example, in other embodiments, one of the first driving member 131 and the second driving member 132 may be a linear or rotary magnetic levitation driving member, and the other is an elastic member (e.g., a spring, more specifically, a torsion spring), so as to ensure that the driving directions of the first driving member 131 and the second driving member 132 are opposite to the driving directions of the rotational movement of the bracket 110.

The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, it is to be understood that the orientations indicated by the terms "S1", "S2", etc. or the positional relationships indicated by the terms "M1", "M2", "P1", "P2", etc. are based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A laser welding gun, comprising:

the device comprises a shell, a light path channel and a light source, wherein the light path channel is formed in the shell;

the first lens is arranged at the light path channel and can be rotatably arranged, so that the first lens can rotate around a preset center or a preset axis to change a light guide angle;

the driving parts can respectively drive the first lenses, each driving part is limited with a corresponding lens rotating direction, the first lenses can rotate around the preset center or the preset axis along the corresponding lens rotating direction under the driving of the driving parts, and the lens rotating directions limited by at least two driving parts are different.

2. The laser welding gun of claim 1,

the driving parts specifically comprise a first driving part and a second driving part, and the first driving part and the second driving part can respectively drive the first lens to rotate around a first preset axis;

the rotation direction of the first lens when the first lens is driven to rotate by the first driving part is opposite to the rotation direction of the first lens when the first lens is driven to rotate by the second driving part.

3. The laser welding gun of claim 2,

the driving pieces further include a third driving piece and a fourth driving piece, the third driving piece and the fourth driving piece can respectively drive the first lens to rotate around a second preset axis, and the first preset axis and the second preset axis intersect or form a non-coplanar straight line included angle;

the rotation direction of the first lens driven by the third driving piece is opposite to the rotation direction of the first lens driven by the fourth driving piece.

4. The laser welding gun of claim 3,

at least one of the plurality of drivers is a linear driver; or

One of the first driving part and the second driving part is an electric driving part, and the other one of the first driving part and the second driving part is an elastic part; or

One of the third driving part and the fourth driving part is an electric driving part, and the other one is an elastic part.

5. The laser welding gun according to any one of claims 1 to 4,

at least one of the plurality of driving members is a magnetically levitated driving member;

the magnetic levitation drive comprises:

the first component is arranged in association with the first lens, and when the first component moves, the first lens is driven to rotate around the preset center or the preset axis;

the second component is configured to be capable of being in electromagnetic induction with the first component under a preset non-contact state between the first component and the second component, so that a force for driving the first component to move is generated between the first component and the second component.

6. The laser welding gun according to any one of claims 1 to 4, characterized by further comprising:

the detection piece or pieces are used for detecting angle parameters, optical parameters or pressure parameters and sending out corresponding signals according to detection results to respond.

7. The laser welding gun according to any one of claims 1 to 4,

the light path channel comprises a first channel and a second channel, an emergent port is formed at one end of the first channel, an incident port is formed at one end of the second channel, the other end of the first channel and the other end of the second channel are in transition to form an included angle structure, one side of the included angle structure is concave, an opening is formed in the other side of the included angle structure, and the first lens is arranged at the opening;

the first lens comprises a reflector, the reflector is provided with a reflector surface and a back surface, the reflector surface faces the light path channel, and the back surface faces a plurality of setting positions of the driving piece.

8. The laser welding gun according to any one of claims 1 to 4, characterized by further comprising:

the bracket is positioned between the first lens and the driving parts and is connected with the first lens and the driving parts, and a rotary connecting structure is arranged on the bracket;

the cover body is connected with the shell, the cover body is connected with the rotating connection structure, the cover body and the support enclose an accommodating space, and the driving pieces are located in the accommodating space.

9. The laser welding gun of claim 8,

the laser welding gun further comprises a sealing element, wherein the sealing element is configured to seal a gap between the cover body and the shell, a limiting groove is formed in one of the cover body and the shell, and a part of the sealing element is located in the limiting groove; and/or

The rotary connecting structure comprises a joint bearing, and a matching groove matched with the joint bearing is formed in the cover body; and/or

The rotation connecting structure is located one side of the support, an extension arm is transited between the rotation connecting structure and the support, the driving piece is circumferentially arranged around the extension arm at intervals, and the first lens is arranged on the other side of the support.

10. The laser welding gun according to any one of claims 1 to 4, characterized by further comprising:

the gun head is arranged on one side of the light path channel along the emergent direction;

the emergent mirror module is arranged between the gun head and the light path channel and comprises a second lens, a cooling seat and a mirror seat, the mirror seat is connected with the cooling seat, and the second lens is limited between the cooling seat and the mirror seat.