CN217370932U

CN217370932U - Handheld welding head for optical fiber transmission

Info

Publication number: CN217370932U
Application number: CN202221063631.4U
Authority: CN
Inventors: 徐斌
Original assignee: Wuhan Glory Laser Technology Co ltd
Current assignee: Wuhan Glory Laser Technology Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-09-06
Anticipated expiration: 2032-05-06

Abstract

The utility model discloses an optical fiber transmission handheld welding head, which comprises a welding gun base and a handle support ring, wherein the handle support ring is arranged outside the middle section of the welding gun base, the lower end of the handle support ring is provided with a welding gun handle, the lower end of the welding gun handle is provided with a plane welding auxiliary device, the focusing mirror is arranged at the front side of the handle support ring and outside the welding gun base, a novel gravity center adjusting device is added outside the end of a protective cylinder of the optical fiber transmission handheld welding head, the main body part of the novel gravity center adjusting device is parallel to the outer wall of the upper end of the optical fiber transmission handheld welding head, the gravity center of the optical fiber transmission handheld welding head can be changed by the gravity center adjusting device when in use, thus the handheld welding head can be ensured to be suitable for welding workpieces at different positions, and the condition that the welding gun shakes off the tail when in use is avoided, therefore, the use stability of the optical fiber transmission handheld welding head can be greatly improved.

Description

Handheld welding head for optical fiber transmission

Technical Field

The utility model belongs to the technical field of welder is relevant, concretely relates to handheld soldered connection of optical fiber transmission.

Background

In laser welding, high-energy laser pulses are used for locally heating materials in micro-areas, energy radiated by laser is diffused into the materials through heat conduction, and the materials are melted to form a specific molten pool. The novel welding mode is mainly used for welding thin-wall materials and precise parts, spot welding, butt welding, stitch welding, seal welding and the like can be realized, the depth-width ratio is high, the width of a welding seam is small, a heat affected zone is small, deformation is small, the welding speed is high, the welding seam is flat and attractive, treatment is not needed or only simple treatment is needed after welding, the welding seam is high in quality, free of air holes, capable of being accurately controlled, small in focusing light spot, high in positioning accuracy and easy to realize automation.

The existing handheld welding head technology has the following problems: the handheld welding head that has now is handheld when using and welding the work piece, because by the multiple and different position of welding workpiece, so handheld welding head need weld the work piece of a plurality of different positions, and the welding angle of soldered connection is all different when every work piece is welded, if the soldered connection downward sloping is to the work piece welding, its terminal weight can influence the focus of soldered connection, make the focus of soldered connection can not concentrate on welder copper nozzle department, so when welding, the condition of whipping and rocking appears easily in welder, then can weld easily and hinder the work piece like this, cause the work piece to damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a handheld soldered connection of optical fiber transmission to when the soldered connection downward sloping that proposes in solving above-mentioned background art is to the work piece welding, its terminal weight can influence the focus of soldered connection, makes the focus of soldered connection can not concentrate on welder copper nozzle department, so when the welding, the condition of whipping and rocking appears easily in welder, then can weld the problem of hindering the work piece easily like this.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a handheld soldered connection of optical fiber transmission, includes welder base and handle support ring, the handle support ring is installed outside welder base interlude, handle support ring lower extreme is provided with the welder handle, welder handle lower extreme is provided with plane welding auxiliary device, handle support ring front side just is located welder base outside and is provided with the focusing mirror, handle support ring rear side just is located welder base outside and is provided with the collimating mirror, welder base front end is provided with the protective glass, the protective glass front end is provided with coaxial blowing cover, coaxial blowing cover rear side upper end is provided with the protection of blowing and chews, the front end of coaxial blowing cover is provided with the welding copper nozzle, welder base outermost rear end is provided with the protection section of thick bamboo, protection section of thick bamboo rear side circular outside is provided with focus adjusting device, protection section of thick bamboo rear end is provided with the connector, focus adjusting device includes fixed cover, the focus adjusting device, Support frame, screw thread counter weight cover and horizontal counter weight screw rod, fixed cover cup joints and is close to the rear side circular outside at a protection section of thick bamboo, the vertical support frame that is provided with on the outer wall of fixed cover upper end, the support frame top is provided with the horizontal counter weight screw rod that stretches out forward, horizontal counter weight screw rod has cup jointed the screw thread counter weight cover near the rear side outside, plane welding auxiliary device includes fixed screw, stationary blade and slope plane binding plate, the stationary blade is located the lower extreme of welder handle, stationary blade and welder handle pass through fixed screw fixed connection, the stationary blade front end is provided with slope plane binding plate.

Preferably, a D80 joint is arranged inside the rear end of the welding gun base, a D80 optical fiber jumper is arranged at the rear end of the D80 joint, and the D80 optical fiber jumper is located inside the protection barrel.

Preferably, a plurality of inwards-sunken finger grooves are formed in the outer wall of the front end of the welding gun handle, and anti-slip coatings are sprayed on the outer walls of the welding gun handle and the finger grooves.

Preferably, the cross section of the coaxial blowing sleeve is conical, the blowing protective nozzle is communicated with the inner part of the coaxial blowing sleeve, and external protective gas can be blown out from the welding copper nozzle through the coaxial blowing sleeve by the blowing protective nozzle.

Preferably, the threads on the inner wall of the thread counterweight sleeve are screwed with the threads on the outer wall of the horizontal counterweight screw rod, the front end of the horizontal counterweight screw rod is in a hemispherical design, and the horizontal counterweight screw rod is parallel to the outer wall of the upper end of the welding gun base.

Preferably, the outer wall of the inclined plane attaching plate is polished, and the welding copper nozzle is located on a workpiece welding point when the inclined plane attaching plate is attached to a horizontal plane.

Compared with the prior art, the utility model provides a handheld soldered connection of optical fiber transmission possesses following beneficial effect:

1. the utility model adds a novel gravity center adjusting device outside the end of the protective cylinder of the optical fiber transmission hand-held welding head, the main body part of the novel gravity center adjusting device is parallel to the outer wall of the upper end of the optical fiber transmission hand-held welding head, the gravity center of the optical fiber transmission hand-held welding head can be changed by the gravity center adjusting device when in use, thus ensuring that the hand-held welding head can be suitable for welding workpieces in different positions, if the optical fiber transmission hand-held welding head slants downwards to weld the workpieces, the tail flicking of the welding gun can be easily caused by the weight of the end of the optical fiber transmission hand-held welding head, the weight of the front end of the welding gun can be increased by the gravity center adjusting device, the weight of the front end of the welding gun is far larger than the weight of the end, thus, the gravity center can be concentrated at the position of the welding copper nozzle when the optical fiber transmission hand-held welding head slants downwards for use, the condition that a welding gun shakes in a tail flicking mode when in use is avoided, so that the use stability of the optical fiber transmission handheld welding head can be greatly improved, when the gravity center adjusting device is adjusted, only the threaded counterweight sleeve needs to be rotated, the threaded counterweight sleeve can move back and forth on the horizontal counterweight screw rod, the gravity centers of the whole optical fiber transmission handheld welding head can be moved forward through the self weight when the plurality of threaded counterweight sleeves move forward, the gravity centers of the whole optical fiber transmission handheld welding head can be moved backward through the self weight when the plurality of threaded counterweight sleeves move backward, and the use gravity centers of the optical fiber transmission handheld welding head can be flexibly changed;

2. the utility model adds a novel plane welding auxiliary device at the lower end of the welding gun handle of the optical fiber transmission hand-held welding head, the plane welding auxiliary device can be rapidly detached from the lower end of the welding gun handle when not in use, thereby not influencing the normal use of the whole optical fiber transmission hand-held welding head, when the optical fiber transmission hand-held welding head is needed to weld workpieces on a plane in a large batch, the plane welding auxiliary device can assist a welding gun to weld workpieces on the plane in a large batch, only a fixing piece is needed to be arranged at the bottom of the welding gun handle when in installation, and the inclined plane binding plate is obliquely arranged at the front side of the welding gun handle, then the fixing piece is needed to be firmly fixed at the bottom of the welding gun handle through a fixing screw, and then the optical fiber transmission hand-held welding head can be normally used to weld workpieces on the horizontal plane in a large batch, when a welding gun is operated through a welding gun handle, only the inclined plane attaching plate needs to be attached to a horizontal plane, the welding copper nozzle just contacts with a welded workpiece at the moment, then only the welding gun handle slides back and forth on the horizontal plane to slide the inclined plane attaching plate, only the inclined plane attaching plate needs to be kept on a horizontal plane object to move, the welding gun can be guaranteed to keep the welding state to move flexibly, and the welding copper nozzle is movable and always located at the best welding position, when the welding gun is moved to be in contact with the workpiece, only the sliding is needed to be stopped, the workpiece is directly welded through the welding copper nozzle, and therefore the workpieces placed on the horizontal plane can be welded in a large batch in the most relaxed state.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic perspective view of a handheld welding head for optical fiber transmission according to the present invention;

fig. 2 is a schematic view of a planar structure of a handheld welding head for optical fiber transmission according to the present invention;

fig. 3 is a schematic structural view of the gravity center adjusting device of the present invention;

fig. 4 is a schematic structural view of the auxiliary device for plane welding according to the present invention;

in the figure: 1. a connector; 2. a center of gravity adjusting device; 3. a protective cylinder; 4. a welding gun base; 5. a handle support ring; 6. a focusing mirror; 7. protective glasses; 8. a blowing protection nozzle; 9. a coaxial blowing sleeve; 10. welding a copper nozzle; 11. a plane welding auxiliary device; 12. a welding gun handle; 13. a collimating mirror; 14. d80 optical fiber jumpers; 15. a D80 linker; 16. fixing a sleeve; 17. a support frame; 18. a threaded counterweight sleeve; 19. a horizontal counterweight screw; 20. fixing screws; 21. a fixing sheet; 22. an inclined plane attaching plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example one

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: an optical fiber transmission handheld welding head comprises a welding gun base 4 and a handle support ring 5, wherein the handle support ring 5 is installed outside the middle section of the welding gun base 4, a welding gun handle 12 is arranged at the lower end of the handle support ring 5, a plurality of inwards concave finger grooves are formed in the outer wall of the front end of the welding gun handle 12, anti-skid coatings are sprayed on the welding gun handle 12 and the outer walls of the finger grooves, the anti-skid coatings can increase the friction force between the anti-skid coatings and a palm, so that a user can be helped to more firmly and stably hold the welding gun handle 12, the user can be ensured to more stably use the optical fiber transmission handheld welding head to weld a workpiece, a plane welding auxiliary device 11 is arranged at the lower end of the welding gun handle 12, a focusing mirror 6 is arranged on the front side of the handle support ring 5 and outside the welding gun base 4, a collimating mirror 13 is arranged on the rear side of the handle support ring 5 and outside the welding gun base 4, and a protective mirror 7 is arranged at the front end of the welding gun base 4, the front end of the protective mirror 7 is provided with a coaxial blowing sleeve 9, the upper end of the rear side of the coaxial blowing sleeve 9 is provided with a blowing protective nozzle 8, the front end of the coaxial blowing sleeve 9 is provided with a welding copper nozzle 10, the cross section of the coaxial blowing sleeve 9 is conical, the blowing protective nozzle 8 is communicated with the inside of the coaxial blowing sleeve 9, the blowing protective nozzle 8 can blow external protective gas out from the welding copper nozzle 10 through the coaxial blowing sleeve 9, during the laser welding process, the workpiece heats and generates oxidation with oxygen in the air to cause yellow and black welding positions, so that a protective gas device is added into the handheld head, protective gas (usually argon) enters from the blowing protective nozzle 8 and is blown out from the welding copper nozzle 10 through the coaxial blowing sleeve 9 to protect the welding workpiece from being heated during the oxidation laser welding process and generating oxidation with oxygen in the air to cause yellow and black welding positions, therefore, a shielding gas device is added into the handheld head, shielding gas (usually argon gas) enters from a blowing protective nozzle 8, the shielding gas is blown out from a welding copper nozzle 10 through a coaxial blowing sleeve 9 and protects a welding workpiece from being oxidized in the welding process, the blowing shielding gas can also effectively prevent metal vapor pollution and liquid molten drop sputtering from damaging the lens, a protective cylinder 3 is arranged at the rear end of the outermost side of a welding gun base 4, a gravity center adjusting device 2 is arranged outside the circular rear side of the protective cylinder 3, a connector 1 is arranged at the rear end of the protective cylinder 3, a D80 connector 15 is arranged inside the rear end of the welding gun base 4, a D80 optical fiber jumper 14 is arranged at the rear end of the D80 connector 15, the D80 optical fiber jumper 14 is positioned inside the protective cylinder 3, when a welding gun works, light coming out of an optical fiber of the D80 is a point light source, a certain divergence angle exists, the light source can be dispersed towards the front in a conical shape in the transmission process, and when the light source reaches a collimating mirror 13, the collimating lens 13 will change the beam of divergent light into parallel light, so that the parallel light can be transmitted along a straight line without generating deviation; meanwhile, the beam waist radius of the light beam is controlled to limit the light beam in a narrow welding head light path, then the light source can reach the focusing mirror 6, and the focusing mirror 6 concentrates the parallel light beams together to form a small light spot, so that the super-strong energy density is generated.

Example two

Referring to fig. 1, fig. 3 and fig. 4, the present invention provides a technical solution: a hand-held welding head for optical fiber transmission is disclosed, a gravity center adjusting device 2 comprises a fixing sleeve 16, a supporting frame 17, a thread balance weight sleeve 18 and a horizontal balance weight screw rod 19, the fixing sleeve 16 is sleeved on the circular outer portion of a protection barrel 3 close to the rear side, the supporting frame 17 is vertically arranged on the outer wall of the upper end of the fixing sleeve 16, the horizontal balance weight screw rod 19 extending forwards is arranged at the top end of the supporting frame 17, the thread balance weight sleeve 18 is sleeved on the outer portion of the horizontal balance weight screw rod 19 close to the rear side, threads on the inner wall of the thread balance weight sleeve 18 are mutually screwed with threads on the outer wall of the horizontal balance weight screw rod 19, the front end of the horizontal balance weight screw rod 19 is designed to be a hemisphere, the horizontal balance weight screw rod 19 is parallel to the outer wall of the upper end of a welding gun base 4, when the gravity center adjusting device 2 is adjusted, the thread balance weight sleeve 18 only needs to be rotated, so that the thread balance weight sleeve 18 moves forwards on the horizontal balance weight screw rod 19, and a plurality of the thread balance weight sleeves 18 move forwards to move forwards the gravity center of the whole hand-held welding head through self weight, the plurality of threaded weight sleeves 18 move backwards, the gravity center of the whole optical fiber transmission handheld welding head can be moved backwards through the self weight, so that the use gravity center of the optical fiber transmission handheld welding head can be flexibly changed, the plane welding auxiliary device 11 comprises a fixing screw 20, a fixing piece 21 and an inclined plane attaching plate 22, the fixing piece 21 is positioned at the lower end of a welding gun handle 12, the fixing piece 21 and the welding gun handle 12 are fixedly connected through the fixing screw 20, the inclined plane attaching plate 22 is arranged at the front end of the fixing piece 21, the outer wall of the inclined plane attaching plate 22 is polished, a welding copper nozzle 10 is positioned on a workpiece welding point when the inclined plane attaching plate 22 is attached to a horizontal plane, when the optical fiber transmission handheld welding head is required to weld workpieces placed on the plane in a large batch, the welding of the workpieces placed on the plane can be assisted by a welding gun through the plane welding auxiliary device 11, during installation, the fixing piece 21 is only required to be arranged at the bottom of the welding gun handle 12, the inclined plane attaching plate 22 is obliquely arranged on the front side of the welding gun handle 12, then the fixing piece 21 is required to be firmly fixed at the bottom of the welding gun handle 12 through the fixing screw 20, and then the optical fiber transmission handheld welding head can be normally used for welding workpieces arranged on a horizontal plane in a large batch.

The utility model discloses a theory of operation and use flow: after the utility model is installed, the power supply of the whole welding gun is needed to be connected through the connector 1, then the welding gun handle 12 needs to be firmly held by a palm, then the whole optical fiber transmission handheld welding head is moved and the welding copper nozzle 10 is slowly close to a workpiece needing to be welded, when the welding copper nozzle 10 contacts the welding position of the workpiece, only a button switch needs to be pressed through fingers, when the welding gun works, the light coming out from the optical fiber of D80 is a point light source, a certain divergence angle exists, the light can be dispersed in a conical shape towards the front in the propagation process, when the light source reaches the collimating mirror 13, the collimating mirror 13 can change the dispersed light into parallel light, the light can be propagated along a straight line, no deviation is generated, the beam waist radius of the light beam is controlled at the same time, the light beam is limited in the welding head, then the light source can reach the focusing mirror 6, the focusing lens 6 concentrates the parallel light beams together to form a very small light spot, so that super-strong energy density is generated, and finally, a workpiece is welded through the welding copper nozzle 10, as laser generates heat when passing through the lens, the welding copper nozzle 10 is contacted with the workpiece in the welding process, the welding heat on the workpiece is also conducted to the handheld welding head, the welding head can generate heat and even scald hands after working for a long time, and further the lens is damaged due to excessive heating, so that double-end water cooling is added to the welding head, water circulates in the welding head after cold water is added to dissipate redundant heat, the handheld head can continuously work for a long time, the workpiece generates heat in the laser welding process, and generates oxidation with oxygen in air, so that the welding part generates yellow and black, a protective gas device is added to the handheld head, and protective gas (usually argon) enters from the blowing protective nozzle 8, through coaxial blowing cover 9, blow out by welding copper nozzle 10 department, the protection welding work piece is not by the oxidation laser welding in-process in welding process, and the work piece generates heat to take place the oxidation with the oxygen in the air, lead to the welding department yellow blackened, so this handheld head has added the protective gas device, and the protective gas (be argon gas usually) is chewed 8 departments by blowing and gets into, through coaxial blowing cover 9, is blown out by welding copper nozzle 10 department, and the protection welding work piece is not by the oxidation in welding process.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A handheld soldered connection of fiber transmission, includes welder base (4) and handle support ring (5), its characterized in that: the welding gun is characterized in that the handle support ring (5) is arranged outside the middle section of the welding gun base (4), the lower end of the handle support ring (5) is provided with a welding gun handle (12), the lower end of the welding gun handle (12) is provided with a plane welding auxiliary device (11), the front side of the handle support ring (5) is provided with a focusing lens (6) outside the welding gun base (4), the rear side of the handle support ring (5) is provided with a collimating lens (13) outside the welding gun base (4), the front end of the welding gun base (4) is provided with a protective lens (7), the front end of the protective lens (7) is provided with a coaxial air blowing sleeve (9), the upper end of the rear side of the coaxial air blowing sleeve (9) is provided with an air blowing protective nozzle (8), the front end of the coaxial air blowing sleeve (9) is provided with a welding copper nozzle (10), and the rear end of the outermost side of the welding gun base (4) is provided with a protective sleeve (3), the rear side circular outer part of the protection cylinder (3) is provided with a gravity center adjusting device (2), the rear end of the protection cylinder (3) is provided with a connector (1), the gravity center adjusting device (2) comprises a fixing sleeve (16), a supporting frame (17), a thread counterweight sleeve (18) and a horizontal counterweight screw rod (19), the fixing sleeve (16) is sleeved on the protection cylinder (3) and is close to the rear side circular outer part, the supporting frame (17) is vertically arranged on the outer wall of the upper end of the fixing sleeve (16), the top end of the supporting frame (17) is provided with the horizontal counterweight screw rod (19) extending forwards, the horizontal counterweight screw rod (19) is sleeved on the thread counterweight sleeve (18) close to the rear side outer part, the plane welding auxiliary device (11) comprises a fixing screw (20), a fixing piece (21) and an inclined plane attaching plate (22), and the fixing piece (21) is positioned at the lower end of a welding gun handle (12), the welding gun is characterized in that the fixing piece (21) is fixedly connected with the welding gun handle (12) through a fixing screw (20), and an inclined plane attaching plate (22) is arranged at the front end of the fixing piece (21).

2. A fiber optic transmission handheld welding head according to claim 1, wherein: the welding gun base (4) is internally provided with a D80 joint (15) at the rear end, a D80 optical fiber jumper (14) is arranged at the rear end of the D80 joint (15), and the D80 optical fiber jumper (14) is positioned in the protection barrel (3).

3. A fiber optic transmission handheld welding head according to claim 1, wherein: a plurality of inwards-sunken finger grooves are formed in the outer wall of the front end of the welding gun handle (12), and anti-skid coatings are sprayed on the outer walls of the welding gun handle (12) and the finger grooves.

4. A fiber optic transmission handheld welding head according to claim 1, wherein: the section of the coaxial blowing sleeve (9) is conical, the blowing protective nozzle (8) is communicated with the inside of the coaxial blowing sleeve (9), and external protective gas can be blown out from the welding copper nozzle (10) through the coaxial blowing sleeve (9) by the blowing protective nozzle (8).

5. A fiber optic transmission handheld welding head according to claim 1, wherein: the thread on the inner wall of the thread counterweight sleeve (18) is screwed with the thread on the outer wall of the horizontal counterweight screw rod (19), the front end of the horizontal counterweight screw rod (19) adopts a hemispherical design, and the horizontal counterweight screw rod (19) is parallel to the outer wall of the upper end of the welding gun base (4).

6. A fiber optic transmission handheld welding head according to claim 1, wherein: the outer wall of the inclined plane attaching plate (22) is subjected to polishing treatment, and the welding copper nozzle (10) is located on a workpiece welding point when the inclined plane attaching plate (22) is attached to a horizontal plane.