Handheld welding gun

Abstract

The utility model provides a handheld welding gun. The handheld welding gun comprises a shell, a galvanometer motor assembly and an adjusting assembly. A motor groove is formed in the shell. The galvanometer motor assembly is arranged in the motor groove and comprises a fixing base, a galvanometer motor and a reflecting mirror, the galvanometer motor is arranged on the fixing base, and the reflecting mirror is arranged on the galvanometer motor. The adjusting assembly comprises a centering piece and an adjusting piece, the centering piece comprises an elastic ring, and the elastic ring is arranged between the fixing base and the motor groove; the adjusting piece comprises a rotary knob, and the rotary knob penetrates through the motor groove and abuts against the fixing base. According to the handheld welding gun provided by the utility model, after the welding gun is integrally assembled, the focus position of a light path can be adjusted, so that the focus is arranged in the middle or moved to a preset initial point position. After the welding gun is assembled, the position of the focal point is adjusted, so that accumulated errors of a plurality of assembly parts and tolerance matching parts in the welding gun can be corrected, and reliability and stability of welding operation of the handheld welding gun are guaranteed.

Description

Technical Field

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

[0002] In the field of laser welding, laser welding guns are widely used as handheld laser welding equipment with simple structure and convenient operation. Handheld welding guns generally perform welding by emitting laser light. The light path is emitted from the QBH, collimated by the collimator, and then refracted to the focusing mirror through the reflector on the galvanometer motor assembly, focusing the light into a point for welding.

[0003] During welding operations, the galvanometer motor assembly can control the position and size of the laser spot extremely accurately, so that the welding point can be accurately positioned; and it can control the laser beam to quickly transfer from one welding point to another within milliseconds, greatly improving the welding speed and work efficiency. However, due to the large number of assembly parts and tolerance matching parts involved in the production process of the handheld welding gun, it is difficult to set the laser convergence point at the initial positioning point after the handheld welding gun is assembled. Utility Model Content

[0004] In order to overcome the deficiencies in the related art, the utility model provides a handheld welding gun.

[0005] The embodiment of the utility model is achieved as follows:

[0006] A handheld welding gun comprises: a housing, a galvanometer motor assembly and an adjustment assembly. A motor slot is provided on the housing. The galvanometer motor assembly is arranged in the motor slot, and the galvanometer motor assembly comprises a fixing seat, a galvanometer motor and a reflector, the galvanometer motor is arranged on the fixing seat, and the reflector is arranged on the galvanometer motor. The adjustment assembly comprises a centering member and an adjustment member, the centering member comprises an elastic ring, and the elastic ring is arranged between the fixing seat and the motor slot; the adjustment member comprises a knob, and the knob passes through the motor slot and abuts against the fixing seat.

[0007] Furthermore, the fixing base includes a first base and a second base, the first base is arranged on a side of the second base facing the shell; the reflector is arranged on a side of the first base away from the second base.

[0008] Furthermore, a first slot section and a second slot section are provided in the motor slot, the first slot section is provided as a circular slot, and the first base can abut against the first slot section; the second slot section is provided as a quadrilateral slot, and the second base can abut against the second slot section.

[0009] Further, the elastic ring is configured as a dustproof rubber ring, the dustproof rubber ring is sleeved on the first base, and the dustproof rubber ring can abut against the first base and the side wall of the first groove section at the same time.

[0010] Furthermore, a threaded hole is formed on the second slot section, the knob can be rotatably installed in the threaded hole, and the knob can abut against the second base.

[0011] Furthermore, a plurality of threaded holes are formed on the second groove section, and the knobs are disposed in each of the plurality of threaded holes.

[0012] Furthermore, a slot is provided on the shell, and an optical fiber output component is inserted into the slot. The optical fiber output component includes an output interface and a fixed bracket. The fixed bracket is arranged in the slot, and the output interface is arranged in the fixed bracket; a wear-resistant part is arranged on the output interface, and the wear-resistant part is arranged between the output interface and the slot.

[0013] Furthermore, an optical path channel is provided in the shell, the optical path channel is connected to the slot, the optical fiber output assembly extends into the slot, and the output interface extends to the outside of the fixed bracket to communicate with the optical path channel, and a seal is also provided between the output interface and the optical path channel.

[0014] Furthermore, a limiting groove is provided in the optical path channel, and a limiting step is provided in the limiting groove; the sealing member is provided as a sealing rubber ring, and the sealing rubber ring is provided between the output interface and the limiting step.

[0015] Further, the wear-resistant part is configured as a wear-resistant sleeve, the wear-resistant sleeve is arranged on the output interface at a position close to the sealing part, and the wear-resistant sleeve is integrally arranged with the sealing rubber ring.

[0016] The beneficial effects of the embodiments of the utility model are:

[0017] The utility model provides a handheld welding gun, comprising: a shell, a galvanometer motor assembly and an adjustment assembly. A motor slot is provided on the shell. The galvanometer motor assembly is arranged in the motor slot, and the galvanometer motor assembly comprises a fixed seat and a reflector, and the reflector is arranged on the fixed seat. The adjustment assembly comprises a centering member and an adjustment member, and the centering member comprises an elastic ring, and the elastic ring is arranged between the fixed seat and the motor slot; the adjustment member comprises a knob, and the knob passes through the motor slot and abuts on the fixed seat. When the handheld welding gun of the utility model is used, the galvanometer motor assembly is installed in the motor slot through the elastic ring, and the position of the galvanometer motor assembly is limited by the elastic ring, so that the galvanometer motor assembly is centered; then, by turning the knob, the depth of the knob extending into the motor slot is changed, that is, the fixed seat is fine-tuned by abutting the knob on the fixed seat. By cooperating with the elastic ring and the knob, the position of the fixed seat is adjusted, that is, the position of the galvanometer motor assembly is adjusted, thereby adjusting the position of the reflector, changing the reflection path of the light path, and centering the focus of the light path.

[0018] The handheld welding gun provided by the utility model can adjust the focal position of the optical path after the welding gun is assembled as a whole, so that the focal point is set in the center or moved to a preset initial point. After the welding gun is assembled, the position of the focal point is adjusted again, so that the utility model can correct the accumulated errors of many assembly parts and tolerance matching parts in the welding gun, thereby ensuring the reliability and stability of the welding operation of the handheld welding gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A structural schematic diagram of a handheld welding gun according to an embodiment of the utility model from one perspective;

[0021] Figure 2 A schematic cross-sectional view of a handheld welding gun according to an embodiment of the utility model from one perspective;

[0022] Figure 3 The handheld welding gun of the utility model embodiment Figure 2 A partial enlarged view of the middle A;

[0023] Figure 4 The handheld welding gun of the utility model embodiment Figure 2 A partial enlarged view of point B in the middle;

[0024] Figure 5 A structural schematic diagram of a handheld welding gun from another perspective of an embodiment of the utility model;

[0025] Figure 6 This is a structural schematic diagram from one perspective of a galvanometer motor assembly of a handheld welding gun according to an embodiment of the utility model.

[0026] icon:

[0027] 100-housing; 110-optical path channel; 120-slot; 130-limiting slot; 131-limiting step; 200-motor slot; 210-first slot section; 220-second slot section; 300-galvanometer motor assembly; 310-first base; 320-second base; 330-reflector; 340-centering piece; 350-adjusting piece; 400-optical fiber output assembly; 410-seal; 420-wear-resistant piece. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example 1

[0035] The present embodiment provides a handheld welding gun, which is used to solve the problem in the related art that after the welding gun is assembled, the focus of the optical path is difficult to control, which affects the accuracy of the welding gun.

[0036] Please refer to 1 to Figure 3 A handheld welding gun includes: a housing 100, a galvanometer motor assembly 300 and an adjustment assembly. A motor slot 200 is provided on the housing 100. The galvanometer motor assembly 300 is disposed in the motor slot 200. The galvanometer motor assembly 300 includes a fixing seat, a galvanometer motor and a reflector 330. The galvanometer motor is disposed on the fixing seat, and the reflector 330 is disposed on the galvanometer motor. The adjustment assembly includes a centering member 340 and an adjustment member 350. The centering member 340 includes an elastic ring disposed between the fixing seat and the motor slot 200. The adjustment member 350 includes a knob, which passes through the motor slot 200 and abuts against the fixing seat.

[0037] Specifically, after the handheld welding gun of the present embodiment is assembled, the galvanometer motor assembly 300 is inserted into the motor slot 200, and the reflector 330 of the galvanometer motor assembly 300 passes through the elastic ring, and the elastic ring is set on the fixed seat, and then the fixed seat is installed in the motor slot 200, and the galvanometer motor assembly 300 is preliminarily aligned by the elastic ring to limit the position of the galvanometer motor assembly 300. After the installation is completed, the knob passes through the motor slot 200 and abuts on the fixed seat. After the galvanometer motor assembly 300 is preliminarily limited by the elastic ring, the knob is rotated to change the depth of the knob extending into the motor slot 200. Since the knob abuts on the fixed seat, the knob can push the fixed seat after extending into the motor slot 200, and change the relative position of the fixed seat and the motor slot 200, that is, change the position of the galvanometer motor assembly 300, that is, change the position of the reflector 330, thereby changing the position of the focus of the optical path channel 110.

[0038] Adjustments after the handheld welding gun is assembled can offset the accumulated errors of the many assembly parts and tolerance fittings in the handheld welding gun, re-center the focus of the optical path, or move it to a preset initial point to ensure the accuracy of the subsequent handheld welding gun in welding operations.

[0039] It should be noted that the handheld welding gun uses laser for welding, and the laser is first generated by the laser. In the handheld welding gun, the laser is usually set as a fiber laser. The laser beam generated by the laser is transmitted to the gun body through the optical fiber. The optical fiber can not only efficiently transmit the laser, but also maintain the beam quality to ensure minimum energy loss. One end of the optical fiber is connected to the laser, and the other end is connected to the optical path channel 110 inside the handheld welding gun. After entering the optical path channel 110, the laser beam changes the transmission direction through the reflector 330 in the galvanometer motor assembly 300, and the beam path is calibrated through the collimator, and the beam is focused through the focusing mirror to ensure that the laser beam reaches the welding point with the most suitable energy density and diameter. Among them, the galvanometer motor assembly 300 can quickly change the scanning path and position of the laser by controlling the reflector 330 to change the angle, direction, etc. of the reflector 330, so as to achieve precise positioning and dynamic welding trajectory. Therefore, before welding, the focal position of the light beam needs to be adjusted so that it is centered or located at a preset initial point. In this way, after welding begins, the focus can be guaranteed to be under the control of the galvanometer motor assembly 300, and the welding point and welding path can be accurate and reliable.

[0040] In one embodiment, for example, Figure 2 , Figure 3 As shown, the fixing base includes a first base 310 and a second base 320. The first base 310 is arranged on the side of the second base 320 facing the housing 100; the reflector 330 is arranged on the side of the first base 310 away from the second base 320. The reflector 330 is arranged on the first base 310 so that the reflector 330 extends into the motor slot 200. When the position of the reflector 330 is changed by adjusting the fixing base, the adjustment component will not contact the reflector 330, so as to avoid the reflector 330 from being worn during the adjustment process, affecting the reflection of the light beam, and improving the reliability and stability of this embodiment.

[0041] In one embodiment, for example, Figure 2 , Figure 3As shown, the motor slot 200 is provided with a first slot section 210 and a second slot section 220. The first slot section 210 is provided as a circular slot, and the first base 310 can abut against the first slot section 210; the second slot section 220 is provided as a quadrilateral slot, and the second base 320 can abut against the second slot section 220. The first base 310 abuts against the first slot section 210, and the first slot section 210 is provided as a circular slot, and the first base 310 can be limited by the first slot section 210, so as to ensure that the first base 310 extends into the first slot section 210, that is, after the reflector 330 extends into the optical path channel 110, the focus of the light beam can be reflected to the vicinity of the preset point, so as to avoid the focus of the light beam from being too far from the preset point, and the focus is initially limited. The second base 320 abuts against the second groove section 220, and the second groove section 220 is set to a quadrilateral. In this way, the size of the cross-section of the second groove section 220 and the second base 320 can be controlled, so that a gap is left between the second groove section 220 and the second base 320, reserving space for the adjustment of the second base 320 to facilitate the subsequent adjustment of the focus point.

[0042] That is to say, the knob can pass through the side wall of the second slot section 220 from the outside of the motor slot 200 and abut against the second base 320. When the relative position between the second base 320 and the second slot section 220 needs to be adjusted so that the focus moves to a preset point, the knob is turned to extend the distance that the knob extends into the second slot section 220, thereby pushing the side wall of the second base 320 away from the second slot section 220. Accordingly, the second base 320 and the second slot section 220 are both configured as quadrilaterals, and knobs are provided on the four sides of the quadrilateral, so that the second base 320 can be adjusted in different directions.

[0043] In one embodiment, for example, Figures 4 to 6 As shown, the elastic ring is set as a dustproof rubber ring, which is sleeved on the first base 310, and the dustproof rubber ring can abut on the side walls of the first base 310 and the first slot section 210 at the same time. The elastic ring is set between the first base 310 and the first slot section 210, so that the elastic ring can cooperate with the first slot section 210 to limit the position of the first base 310 and make it centered. In addition, the elastic ring can also leave room for the first base 310 to move, that is, when adjusting the position of the second base 320 and centering, the first base 310 can cooperate with the change of the position of the second base 320 to squeeze the elastic ring, so that the position of the first base 310 can change slightly with the adjustment of the second base 320, so that the adjustment of the second base 320 is smoother, and the first base 310 cannot change due to the restriction of the position of the first slot section 210 when the second base 320 is adjusted, which affects the normal adjustment of the second base 320, thereby improving the rationality and practicality of this embodiment.

[0044] It is worth mentioning that, since there is a gap between the second groove section 220 and the second base 320, and between the first groove section 210 and the first base 310, so that the second base 320 can be adjusted in position, small dust and impurities from the outside can enter the gun body of the handheld welding gun or the optical path channel 110 along the gap, affecting the quality of laser output or affecting other components. The elastic ring is set as a dustproof rubber ring, which can effectively block and seal the gap, prevent the handheld welding gun from being affected by the outside world, and improve the stability of this embodiment.

[0045] In one embodiment, for example, Figure 5 , Figure 6 As shown, a threaded hole is provided on the second slot section 220, and the knob can be rotatably installed in the threaded hole, and the knob can abut against the second base 320. The knob is set in the threaded hole, and when it is necessary to control the depth of the knob extending into the second slot section 220, it is only necessary to rotate the knob. Through the threaded matching, accurate linear displacement conversion can be achieved, that is, each time the knob is rotated one circle of thread, the knob will move a fixed distance in the direction of approaching or moving away from the second base 320, thereby improving the accuracy and precision of the present embodiment during adjustment.

[0046] In addition, by cooperating with the threaded hole and the knob, slow adjustment can be performed, which can reduce the difficulty of adjustment and make it easier to adjust the focus to the preset point. Furthermore, the threaded match can control the distance the knob moves in one circle by controlling the pitch. In this way, when adjusting different models of handheld welding guns or galvanometer motor assemblies 300, the pitch can be changed to make this embodiment applicable to any model of handheld welding guns, thereby improving the universality of this embodiment.

[0047] It should be noted that the threaded hole and the knob are threadedly matched, and the threaded match can make the thread have a self-locking characteristic by controlling the thread tooth profile and the thread lead angle, that is, the torque can be smoothly transmitted during forward rotation, and the friction force can prevent reversal during reverse rotation. In this embodiment, during forward rotation, the knob is abutted on the second base 320 to adjust the fixed seat of the galvanometer motor assembly 300, thereby changing the position of the reflector 330 on the galvanometer motor assembly 300, adjusting the path of the light beam, and moving the focus of the light beam to the preset position. After the adjustment is completed, the knob can stably and reliably limit the position of the galvanometer motor assembly 300, and the knob will not be loosened due to external reasons such as the vibration of the handheld welding gun and the shaking of the galvanometer motor assembly 300, so that the knob is reliable in limiting the galvanometer motor assembly 300.

[0048] In one embodiment, for example, Figure 5 , Figure 6As shown, a plurality of threaded holes are provided on the second slot section 220, and knobs are provided in the plurality of threaded holes. The cross-sections of the second slot section 220 and the second base 320 are both set to be quadrilaterals, and threaded holes and knobs are provided on each side. The second base 320 can be adjusted in any direction by turning the knob, so as to control the reflector 330 and move the focus to a preset point.

[0049] It should be noted that a plurality of threaded holes are also provided on the same side of the second slot section 220, and knobs are provided in the threaded holes, so that the adjustment of the second base 320 can be made more flexible. Exemplarily, when a single threaded hole and a single knob are provided on the side of the second slot section 220, by turning the knob, the side of the second base 320 that the knob abuts can be pushed as a whole in a direction away from the side of the second slot section 220. Two threaded holes and two knobs are provided on the side of the second slot section 220, and are respectively provided at the two ends of the side. When adjusting, any one group of threaded holes and knobs is adjusted, while the other group is not moved, one end of the side of the second base 320 is pushed away from the side wall of the second slot section 220 by the knob, and the other end of the side of the second base 320 remains unchanged, and the second base 320 is deflected. In this way, the degree of freedom of adjustment of the second base 320 is improved, and the adjustment of the second base 320 is made more flexible.

[0050] Correspondingly, a plurality of threaded holes and a plurality of knobs can be provided on the side of the second slot section 220 , and the adjustment effect thereof is the same as that of two threaded holes and two knobs, but the adjustment accuracy is higher and the stability is better.

[0051] In one embodiment, for example, Figure 6 As shown, the first base 310 can be detachably mounted on the second base 320, and the reflector 330 can be detachably mounted on the first base 310. The detachable connection allows for quick and easy disassembly and reassembly of components, that is, when any component of the first base 310, the second base 320, and the reflector 330 is damaged, the damaged component can be replaced individually without replacing all of them, making the maintenance and repair of the galvanometer motor assembly 300 simpler and more convenient.

[0052] It should be noted that the galvanometer motor assembly 300 is configured as a plurality of detachable parts for easy maintenance and replacement. When assembling a plurality of parts, more assembly errors will also accumulate. In this embodiment, after assembly, the galvanometer motor assembly 300 can be adjusted to move the focus of the light beam to a preset point to eliminate the influence of the assembly error. In other words, this embodiment will not be affected by the assembly error, making the overall assembly process and structural design of this embodiment more flexible.

[0053] In one embodiment, for example, Figure 1 , Figure 2 , Figure 5 As shown, the housing 100 is also provided with a slot 120, in which an optical fiber output assembly 400 is plugged, and the optical fiber output assembly 400 includes an output interface and a fixed bracket, the fixed bracket is arranged in the slot 120, and the output interface is arranged in the fixed bracket; the output interface is provided with a wear-resistant part 420, and the wear-resistant part 420 is arranged between the output interface and the slot 120. The output interface in the optical fiber output assembly, i.e., the QBH interface, when in use, the QBH interface is mainly used to connect a high-power laser for optical fiber transmission with a handheld welding head to ensure that the laser energy is efficiently and safely transmitted from the laser to the optical path channel 110. Providing the wear-resistant part 420 at the QBH interface can prevent the QBH interface from scratching other components during assembly, causing metal dust to fall into the optical path channel 110, thereby improving the stability of the connection and extending the service life.

[0054] Specifically, the wear-resistant part 420 is made of a hard, high-temperature-resistant, and wear-resistant material. Providing the wear-resistant part 420 at the QBH interface can reduce the wear caused by plugging and unplugging, vibration, or friction during the installation process, and protect the interface from physical damage. In addition, the QBH interface needs to maintain good airtightness during the optical fiber transmission process to prevent the infiltration of cooling water or air from affecting the quality of laser transmission. The wear-resistant part 420 helps to maintain the sealing of the interface connection part, prevent the entry of moisture, dust, and other contaminants, thereby protecting the optical fiber and internal optical components. Furthermore, by increasing the wear resistance of the contact surface, the wear-resistant part 420 can ensure that the QBH interface maintains a stable connection during long-term use and reduce looseness caused by wear.

[0055] In one embodiment, for example, Figure 2 As shown, an optical path channel 110 is provided in the housing 100, the optical path channel 110 is communicated with the slot 120, the optical fiber output assembly 400 extends into the slot 120, and the output interface extends to the outside of the fixed bracket and communicates with the optical path channel 110, and a seal 410 is also provided between the output interface and the optical path channel 110. The seal 410 is provided to cooperate with the wear-resistant part 420 at the QBH interface to prevent metal dust from falling into the optical path channel 110 when the QBH interface is scratched with other components.

[0056] Furthermore, during the welding operation, a large amount of heat will be generated in the optical path channel 110 and the optical fiber. The seal 410 is provided at the connection between the QBH interface and the optical path channel 110 to prevent the internal heat from leaking out and to isolate the influence of the external heat on the optical path channel 110, so that the laser system can work at a constant temperature, extend the service life of this embodiment, and improve the stability of the force of this embodiment, that is, to improve the stability of the light beam, so that the focus adjustment of the light beam in this embodiment is more stable. The seal 410 is provided, and good sealing can avoid the displacement or loosening of components such as the optical fiber and the QBH interface caused by vibration or mechanical shock, maintain the stable transmission of the laser beam, prevent the light beam from fluctuating during the adjustment process, and further improve the stability of this embodiment.

[0057] In one embodiment, for example, Figure 4 As shown, a limiting groove 130 is provided in the optical path channel 110, and a limiting step 131 is provided in the limiting groove 130; the sealing member 410 is provided as a sealing rubber ring, and the sealing rubber ring is provided between the output interface and the limiting step 131. In this way, after the QBH interface extends into the limiting groove 130, the QBH interface can be positively pressed on the sealing rubber ring, so that the extrusion force of the QBH interface on the sealing rubber ring is evenly distributed. On the one hand, it can avoid stress concentration of the sealing rubber ring and extend the service life of the sealing rubber ring, and on the other hand, it can also improve the sealing ability and sealing effect of the sealing rubber ring.

[0058] In one embodiment, for example, Figure 4 As shown, the wear-resistant part 420 is configured as a wear-resistant sleeve, and the wear-resistant sleeve is arranged on the output interface near the position of the seal 410, and the wear-resistant sleeve is arranged integrally with the sealing rubber ring. The seal 410 and the wear-resistant part 420 that are arranged integrally ensure the close fit between the seal 410 and the wear-resistant part 420, reduce the gap during the assembly process, and effectively prevent foreign impurities, moisture, dust, etc. from entering the interior of the bearing. At the same time, it also prevents the internal heat from leaking out or the external heat change from affecting the optical path channel 110 when the handheld welding gun is welding, making this embodiment more stable and reliable. In addition, the seal 410 and the wear-resistant part 420 that are arranged integrally can simplify the installation steps, avoid assembly errors made by the assembler when the seal ring and the sleeve are installed separately, and reduce the production difficulty of this embodiment.

[0059] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A handheld welding gun, characterized in that: include: A housing (100), wherein a motor slot (200) is formed on the housing (100); A galvanometer motor assembly (300), the galvanometer motor assembly (300) being arranged in the motor slot (200), the galvanometer motor assembly (300) comprising a fixing seat, a galvanometer motor and a reflector (330), the galvanometer motor being arranged on the fixing seat, and the reflector (330) being arranged on the galvanometer motor; An adjustment component, the adjustment component comprising a centering piece (340) and an adjustment piece (350), the centering piece (340) comprising an elastic ring, the elastic ring being arranged between the fixing seat and the motor slot (200); the adjustment piece (350) comprising a knob, the knob passing through the motor slot (200) and abutting against the fixing seat.

2. The handheld welding gun according to claim 1, characterized in that: The fixing base comprises a first base (310) and a second base (320); the first base (310) is arranged on a side of the second base (320) facing the shell (100); and the reflector (330) is arranged on a side of the first base (310) away from the second base (320).

3. The handheld welding gun according to claim 2, characterized in that: The motor slot (200) is provided with a first slot section (210) and a second slot section (220); the first slot section (210) is provided as a circular slot, and the first base (310) can abut against the first slot section (210); the second slot section (220) is provided as a quadrilateral slot, and the second base (320) can abut against the second slot section (220).

4. The handheld welding gun according to claim 3, characterized in that: The elastic ring is configured as a dustproof rubber ring, the dustproof rubber ring is sleeved on the first base (310), and the dustproof rubber ring can abut against the first base (310) and the side wall of the first groove section (210) at the same time.

5. The handheld welding gun according to claim 3, characterized in that: A threaded hole is provided on the second groove section (220), the knob can be rotatably installed in the threaded hole, and the knob can abut against the second base (320).

6. The handheld welding gun according to claim 5, characterized in that: The second groove section (220) is provided with a plurality of threaded holes, and the knobs are arranged in the plurality of threaded holes.

7. The handheld welding gun according to claim 1, characterized in that: The housing (100) is also provided with a slot (120), in which an optical fiber output assembly (400) is inserted, the optical fiber output assembly (400) comprising an output interface and a fixing bracket, the fixing bracket being arranged in the slot (120), and the output interface being arranged in the fixing bracket; a wear-resistant part (420) is arranged on the output interface, and the wear-resistant part (420) is arranged between the output interface and the slot (120).

8. The handheld welding gun according to claim 7, characterized in that: An optical path channel (110) is provided in the housing (100), the optical path channel (110) is communicated with the slot (120), the optical fiber output assembly (400) extends into the slot (120), and the output interface extends to the outside of the fixed bracket and communicates with the optical path channel (110), and a sealing member (410) is also provided between the output interface and the optical path channel (110).

9. The handheld welding gun according to claim 8, characterized in that: A limiting groove (130) is provided in the optical path channel (110), and a limiting step (131) is provided in the limiting groove (130); the sealing member (410) is provided as a sealing rubber ring, and the sealing rubber ring is provided between the output interface and the limiting step (131).

10. The handheld welding gun according to claim 9, characterized in that: The wear-resistant part (420) is configured as a wear-resistant shaft sleeve, the wear-resistant shaft sleeve is arranged on the output interface at a position close to the sealing part (410), and the wear-resistant shaft sleeve is integrally arranged with the sealing rubber ring.

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