Adjusting mechanism, galvanometer device, handheld welding torch and laser processing equipment

Abstract

The utility model discloses a kind of adjusting mechanism, galvanometer device, handheld welding torch and laser processing equipment.The adjusting mechanism includes: fixed seat, the fixed seat has a reference end face, and is provided with at least one adjusting hole that is penetrated through the fixed seat along the axial direction;Adjusting piece contains protruding part and connecting part, one end of the connecting part is fixedly connected with protruding part, the other end is embedded in adjusting hole, and the connecting part and adjusting hole form the mechanical connection relationship of relative displacement;The end face of one end of the connecting part in adjusting hole is provided with screwing structure, for exerting adjusting force to adjust the distance between the protruding part and the reference end face of fixed seat.

Description

Technical Field

[0001] This utility model belongs to the field of laser processing equipment technology, and particularly relates to an adjustment mechanism, a galvanometer device, a handheld welding torch, and laser processing equipment. Background Technology

[0002] With the rapid development of laser technology, laser processing equipment, with its advantages of high energy density, high precision, and high efficiency, has been widely used in industrial manufacturing, especially in welding, cutting, marking, and cleaning. In handheld laser welding torches or automated laser processing heads, the laser scanning galvanometer system is a core component, and its performance directly determines the final processing quality and efficiency. This system drives the deflection of the reflector through the high-speed, precise oscillation of the internal galvanometer motor, thereby guiding the laser beam to form a preset scanning trajectory on the workpiece surface, achieving complex processing paths. Therefore, the stable and precise operation of the galvanometer system is crucial to ensuring the performance of the entire laser processing equipment.

[0003] To ensure the accuracy of the laser beam output, the galvanometer device needs to be precisely installed in a predetermined position inside the equipment housing or head. In existing technologies, the galvanometer device is typically directly locked to the equipment's mounting surface using its own mounting base and several fasteners (such as screws). However, this traditional installation method has the following drawbacks: First, it relies heavily on the extremely high machining and assembly precision of the mechanical components to ensure the correct initial angle of the reflector, placing stringent requirements on manufacturing and assembly processes, resulting in high costs. Second, this fixing method typically only provides two-dimensional (XY direction) positional fine-tuning within the mounting plane, and is ineffective in addressing tilting (i.e., pitch and yaw angle deviations) of the overall mounting posture of the galvanometer motor caused by accumulated tolerances or component deformation.

[0004] In actual production, due to the cumulative tolerances of multiple parts such as the galvanometer device and the equipment housing, it is almost inevitable that the static initial angle of the galvanometer motor's reflector will deviate slightly from the theoretical design value after assembly. This static angle deviation will cause the initial emission point of the laser beam to deviate from the working focus or the preset center position, seriously affecting the initial accuracy and overall quality of processing, and may even lead to product scrap. Therefore, how to provide a solution that allows for convenient and precise adjustment of the galvanometer device's installation posture after assembly without significantly increasing structural complexity and cost, so as to effectively compensate for the static angle deviation of the reflector caused by cumulative tolerances, is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings by providing an adjustment mechanism, a galvanometer device, a handheld welding torch, and a laser processing equipment.

[0006] Firstly, an adjusting mechanism adopts the following technical solution:

[0007] The adjustment mechanism includes:

[0008] A fixing seat, the fixing seat having a reference end face and having at least one adjustment hole extending axially through the fixing seat;

[0009] An adjusting component includes a protrusion and a connecting part. One end of the connecting part is fixedly connected to the protrusion, and the other end is embedded in an adjusting hole. The connecting part and the adjusting hole form a mechanical connection that allows relative displacement.

[0010] The end face of the connecting part located inside the adjustment hole is provided with a screwing structure for applying adjustment force to adjust the distance between the protrusion and the reference end face of the fixed seat.

[0011] Preferably, the protrusion and the connecting part of the adjusting member are integrally formed.

[0012] Preferably, one end face of the adjusting hole is lower than the reference end face of the fixed base, and the protrusion is located on the side of the adjusting hole that is lower than the reference end face.

[0013] Preferably, the end face of the protrusion of the adjusting member facing away from the connecting part is provided with a screwing structure for applying adjusting force.

[0014] Preferably, the screwing structure is a groove, a protrusion, or a combination of both.

[0015] Preferably, the outer peripheral surface of the connecting part is provided with an external thread, the inner wall of the adjusting hole is provided with an internal thread, and the connecting part and the adjusting hole are connected by threads to achieve a mechanical connection relationship that allows for relative displacement.

[0016] Preferably, the adjusting member is an axially through hollow structure, and the hollow structure forms a first mounting hole for inserting a first locking member.

[0017] Preferably, the fixing base is further provided with at least one second mounting hole, the second mounting hole being spaced apart from the first mounting hole, for inserting a second locking member, the first locking member and the second locking member being used to lock and fix the fixing base to the external equipment mounting base surface, the end face of the protrusion away from the connecting part being used to abut against the external equipment mounting base surface, so that a controllable distance is generated between the fixing base and the external equipment mounting base surface.

[0018] Preferably, there is an installation gap between the first mounting hole and the first locking member, and between the second mounting hole and the second locking member, and the fixing seat can be finely adjusted in any direction perpendicular to the hole axis.

[0019] Preferably, the first mounting hole and the second mounting hole are both smooth holes, and the first locking member and the second locking member are both axial force locking members.

[0020] Preferably, the axial force locking component is a three-combination screw.

[0021] Secondly, a galvanometer device adopts the following technical solution:

[0022] Includes: regulating mechanism;

[0023] A drive mechanism, which is fixedly connected to the fixed base of the adjustment mechanism;

[0024] An optical lens is fixedly connected to the driving mechanism and located on one side of the reference end face of the adjustment mechanism fixing seat. The adjustment mechanism is used to adjust the spatial attitude of the optical lens.

[0025] Thirdly, a handheld welding torch employs the following technical solution:

[0026] include:

[0027] A housing, wherein a galvanometer cavity is provided on the housing, and a mounting base surface is provided inside the galvanometer cavity;

[0028] The galvanometer device has a mounting base surface that is opposite to the fixed seat end face of the adjustment mechanism in the galvanometer device, and the protrusion can be made to abut against the mounting base surface by the adjustment component, so that a controllable distance is generated between the fixed seat and the mounting base surface.

[0029] Fourthly, a laser processing equipment adopts the following technical solution:

[0030] Includes a handheld welding torch.

[0031] The beneficial effects of this utility model are:

[0032] The adjustment mechanism of this utility model achieves high-precision spacing adjustment through the threaded connection between the adjustment component and the adjustment hole and the screwing structure. Combined with double locking components and installation gap, it ensures structural stability while supporting multi-directional fine adjustment and preventing loosening. This design not only improves the accuracy and convenience of adjustment, but also enhances the structural strength and reliability.

[0033] In applications such as galvanometer devices, handheld welding torches, and laser processing equipment, this adjustment mechanism can precisely control the spatial attitude of optical lenses, thereby accurately adjusting the laser beam and significantly improving equipment processing accuracy and work efficiency. Furthermore, its detachable locking components and universal screw-on structure facilitate installation, maintenance, and operation, and are compatible with various tools and locking component specifications, effectively reducing equipment maintenance costs, improving assembly efficiency, and making it suitable for diverse industrial scenarios.

[0034] The technical solution of this utility model has a simple structure, low cost, and intuitive adjustment. It cleverly transforms the complex problem of machining tolerance control into a simple post-assembly adjustment process, which significantly reduces the stringent requirements on the machining and assembly accuracy of parts and effectively ensures the final installation accuracy of optical components and the overall performance of the equipment. Attached Figure Description

[0035] Figure 1 This embodiment provides a schematic diagram of the structure of an adjustment mechanism.

[0036] Figure 2 This embodiment provides a schematic diagram of the first viewpoint structure of the adjusting member in the adjusting mechanism.

[0037] Figure 3 This embodiment provides a second-view structural diagram of the adjusting member in an adjusting mechanism.

[0038] Figure 4 This is a schematic diagram of the first perspective structure of a galvanometer device provided in this embodiment.

[0039] Figure 5 This is a schematic diagram of the second perspective structure of a galvanometer device provided in this embodiment.

[0040] Figure 6 This embodiment provides a structural schematic diagram of a handheld welding torch.

[0041] Figure label:

[0042] 1. Fixing base; 101. Adjustment hole; 102. Second mounting hole; 103. Reference end face;

[0043] 2. Adjusting component; 201. Protrusion; 202. Connecting part; 203. Tightening structure; 204. First mounting hole;

[0044] 3. Galvanometer device; 301. Drive mechanism; 302. Adjustment mechanism; 303. Optical lens;

[0045] 4. Galvanometer cavity;

[0046] 5. Shell. Detailed Implementation

[0047] The following detailed description, in conjunction with embodiments, provides an adjustment mechanism, a galvanometer device, and a laser equipment according to this utility model. For the sake of simplicity, this document cannot exhaustively list all alternative technical features and implementation schemes included in this utility model. Therefore, those skilled in the art should understand that any technical feature and implementation scheme within this embodiment does not limit the scope of protection of this utility model. The scope of protection includes all alternative technical features and implementation schemes adopted by those skilled in the art without inventive effort. Specifically, any implementation scheme obtained by replacing any technical feature in this utility model or combining any two or more technical features provided by this utility model should be within the scope of protection of this utility model.

[0048] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0049] This embodiment provides an adjustment mechanism, such as Figure 1-3 As shown. The adjustment mechanism includes:

[0050] The fixing seat 1 has a reference end face 103 and at least one adjustment hole 101 that passes through the fixing seat 1 axially.

[0051] Adjusting component 2 includes a protrusion 201 and a connecting part 202. One end of the connecting part 202 is fixedly connected to the protrusion 201, and the other end is embedded in the adjusting hole 101. The connecting part 202 and the adjusting hole 101 form a mechanical connection relationship that allows relative displacement.

[0052] The connecting part 202 is provided with a screwing structure 203 on one end face of the adjusting hole 101, which is used to apply an adjusting force to adjust the distance between the protrusion 201 and the reference end face 103.

[0053] The adjustment mechanism of this utility model achieves high-precision spacing adjustment through the threaded connection between the adjustment component 2 and the adjustment hole 101 and the screwing structure 203. Combined with double locking components and installation gap, it ensures structural stability while supporting multi-directional fine adjustment and preventing loosening. This design not only improves the accuracy and convenience of adjustment, but also enhances the structural strength and reliability.

[0054] In some embodiments, the protrusion 201 and the connecting portion 202 of the adjusting member 2 are integrally formed.

[0055] In some embodiments, one end face of the adjustment hole 101 is lower than the reference end face 103 of the fixed base 1, and the protrusion 201 is located on the side of the adjustment hole 101 that is lower than the reference end face 103.

[0056] With this configuration, the end face of the adjustment hole 101 is lower than the reference end face 103 of the fixed base 1, so that the protrusion 201 is completely hidden inside the fixed base 1 when it is retracted, and at the same time, it can also meet the requirement of zero-pitch adjustment.

[0057] In some embodiments, the protrusion 201 of the adjusting member 2 has a screwing structure 203 for applying adjusting force on the end face opposite to the connecting portion 202.

[0058] The position of the connecting part 202 and the adjusting hole 101 can be adjusted more conveniently by rotating the rotating structure 203, so that the protrusion 201 of the adjusting part 2 can extend or retract relative to the reference end face 103 of the fixed base 1.

[0059] For example, the screwing structure 203 is a groove, a protrusion, or a combination of both.

[0060] Furthermore, the screwing structure 203 can be formed into a cross-shaped or straight-line structure by grooves, protrusions, or a combination of both, so as to be screwed in using tools such as screwdrivers.

[0061] In some embodiments, the outer peripheral surface of the connecting part 202 is provided with an external thread, and the inner wall of the adjusting hole 101 is provided with an internal thread. The connecting part 202 and the adjusting hole 101 are connected by a thread to achieve a mechanical connection relationship that allows for relative displacement.

[0062] The adjusting member 2 is fitted into the adjusting hole 101 by engaging the external and internal threads. In fact, based on the threaded connection, the protrusion 201 can be extended or retracted relative to the reference end face 103 of the fixed seat 1 by turning the adjusting member 2.

[0063] In some embodiments, the adjusting member 2 is an axially through hollow structure, and the hollow structure forms a first mounting hole 204 for inserting a first locking member.

[0064] After the adjusting member 2 adjusts the distance between the fixed base 1 and the external equipment mounting base, the fixed base 1 and the external equipment mounting base are fixed by the through first locking member.

[0065] The fixed base 1 is also provided with at least one second mounting hole 102, which is spaced apart from the first mounting hole 204 and is used to pass through a second locking member. The second locking member is used to lock the fixed base 1 to the external equipment mounting base. The end face of the protrusion 201 away from the connecting part 202 is used to abut against the external equipment mounting base, so that a controllable distance is generated between the fixed base 1 and the external equipment mounting base.

[0066] The second mounting hole 102 secures the fixing base 1 to the external equipment mounting surface through the second locking member.

[0067] For example, the upper surface of the fixing base 1 is a flat reference end face 103.

[0068] Taking the setting of one adjustment hole 101 and two second mounting holes 102 as an example, the fixed base 1 has one adjustment hole 101 and two symmetrically distributed second mounting holes 102.

[0069] The two second mounting holes 102 and one adjustment hole 101 form a stable three-point support structure supported by a controllable spacing, thereby causing the fixed base 1 to tilt as a whole, thus adjusting the installation posture of the device to be adjusted mounted on it.

[0070] The second locking member passes through the second mounting hole 102 to lock the fixing seat 1 onto the mounting base surface.

[0071] In some embodiments, the adjustment hole 101 may be a single hole, or a group or multiple groups arranged symmetrically.

[0072] When one adjustment hole 101 is provided, the angle of the device to be adjusted along one direction of the central axis can be adjusted by the adjusting member 2 that is connected in cooperation. When a set of adjustment holes 101 is provided, the angle of the device to be adjusted along two directions of the central axis can be adjusted by the adjusting member 2 that is connected in cooperation.

[0073] One end face of the adjustment hole 101 is lower than the end face of the fixed base 1, and the protrusion 201 is located on the side of the adjustment hole 101 that is lower than the end face of the fixed base 1.

[0074] By adjusting the connecting part 202 and the adjusting hole 101 (i.e., the position of the connecting part 202 and the adjusting hole 101), the protrusion 201 moves toward the mounting base surface, thereby adjusting the distance between the mounting base surface and the fixing seat 1.

[0075] When the adjustment holes 101 are provided in one or more groups, each adjustment element 2 in each group of adjustment holes 101 is provided with the same or different adjustment range.

[0076] In some embodiments, there is an installation gap between the first mounting hole 204 and the first locking member, and between the second mounting hole 102 and the second locking member, and the fixing seat 1 can be finely adjusted in any direction perpendicular to the hole axis.

[0077] In some embodiments, the first mounting hole 204 and the second mounting hole 102 are both open holes, and the first locking member and the second locking member are both axial force locking members.

[0078] In some embodiments, the axial force locking element is a three-combination screw.

[0079] The assembly process of this utility model is as follows:

[0080] Assembly: Screw the adjusting component 2 into one of the adjusting holes 101 of the fixed base 1 to assemble the device to be adjusted with the adjusting mechanism.

[0081] Installation: Place the adjustment mechanism 100, which is equipped with the device to be adjusted, into the external device, so that the reference end face 103 of the fixing base 1 faces the mounting base surface of the external device. At this time, the protrusion 201 of the adjustment member 2 will first abut against the mounting base surface.

[0082] Fixing and supporting: Pass the two second locking members through the corresponding second mounting holes 102 and lock them onto the mounting base.

[0083] Adjustment: When adjusting the posture, use a tool to tighten the tightening structure 203 of the adjusting component 2. When the adjusting component 2 is unscrewed, its protrusion 201 extends beyond the reference end face 103, thereby increasing the distance between the fixed base 1 and the mounting base at that point; when the adjusting component 2 is screwed in, the distance decreases. This change in distance causes the fixed base 1 to tilt precisely and controllably about the axis formed by the two locking points.

[0084] Locking: After the mounting posture of the fixed base 1 is adjusted to the ideal angle, the first locking member is passed through the first mounting hole 204 and fully locked to securely lock the adjusted posture.

[0085] In summary, the adjustment mechanism provided by this utility model cleverly utilizes the three-point support principle through the fixed base 1 and the adjusting component 2 to transform the complex angular deviation problem caused by the cumulative tolerances of multiple parts into a simple and quantifiable linear adjustment action. It is not only simple in structure and low in cost, but also intuitive and highly accurate in its adjustment process, greatly improving the efficiency and reliability of installing and calibrating precision optical components in equipment.

[0086] This embodiment also provides a galvanometer device, such as... Figure 4 , 5 As shown, it includes:

[0087] Such as the adjustment mechanism 302 mentioned above;

[0088] The drive mechanism 301 is fixedly connected to the fixed base 1 of the adjustment mechanism 302;

[0089] An optical lens 303 is fixedly connected to the driving mechanism 301 and is located on one side of the reference end face 103 of the fixed seat 1 of the adjustment mechanism 302. The adjustment mechanism 302 is used to adjust the spatial attitude of the optical lens 303.

[0090] It should be noted that the fixed connection between the drive mechanism 301 and the fixed base 1 of the adjustment mechanism 302 includes a direct fixed connection between the drive mechanism 301 and the adjustment mechanism 302, and an indirect fixed connection between the drive mechanism 301 and the adjustment mechanism 302.

[0091] The spatial attitude includes position and angle.

[0092] For example, the galvanometer device 3 includes a drive mechanism 301 and the aforementioned adjustment mechanism 302, wherein the fixing base 1 of the adjustment mechanism 302 is fixedly connected to the drive mechanism 301 to form a whole.

[0093] By integrating the adjustment mechanism 302 with the drive mechanism 301 of the galvanometer device 3, the galvanometer device 3 itself has the function of attitude adjustment. This allows the entire galvanometer device 3 to be used as an independent unit for overall attitude calibration when it is installed on the final laser processing device, which greatly improves assembly efficiency and debugging convenience.

[0094] In the application of the galvanometer device, the adjustment mechanism 302 can precisely control the spatial attitude of the optical lens 303, thereby accurately adjusting the laser beam and significantly improving the processing accuracy and work efficiency of the equipment. In addition, it adopts a detachable locking part and a universal screwing structure, which facilitates installation, maintenance and operation, is compatible with a variety of tools and locking part specifications, effectively reduces equipment maintenance costs, improves assembly efficiency, and is suitable for diverse industrial scenarios.

[0095] This embodiment also provides a handheld welding torch, such as Figure 6 As shown, it includes:

[0096] The housing 5 has a galvanometer cavity 4, and the galvanometer cavity 4 has a mounting base surface inside;

[0097] The galvanometer device has its mounting base surface facing the end face of the fixed seat 1 of the adjustment mechanism 302 in the galvanometer device, and the protrusion 202 can be made to abut against the mounting base surface by the adjustment member 2, so that a controllable distance is generated between the fixed seat 1 and the mounting base surface.

[0098] A galvanometer cavity 4 for mounting is provided inside the housing 5 of the handheld welding torch. The galvanometer device 3, which integrates the attitude adjustment function as described above, is completely installed in the galvanometer cavity 4.

[0099] After the mechanical and electrical connections are completed, the overall installation posture of the galvanometer device 3 can be precisely calibrated by operating the adjustment component 2 on the adjustment mechanism to ensure that the initial position of the emitted laser beam is accurate.

[0100] Applying the galvanometer device 3 from the above embodiment to a handheld welding torch greatly simplifies the final product assembly and calibration process, reducing the skill requirements for production line workers. Simultaneously, by effectively compensating for manufacturing tolerances, it improves product consistency and yield. Ultimately, this allows the handheld welding torch to achieve higher scanning accuracy and more stable performance at a lower cost, enhancing the product's market competitiveness.

[0101] When the adjustment mechanism is installed in the galvanometer cavity 4 of the housing 5, the protrusion 201 of the adjustment member 2 abuts against the mounting base surface of the galvanometer cavity 4. At this time, by adjusting the screw-in depth of the adjustment member 2, it can be positioned between its abutment point and the locking point of the locking member.

[0102] In a handheld welding torch, the galvanometer device 3 is responsible for reflecting and controlling the trajectory of the laser beam. However, due to manufacturing tolerances and assembly errors of multiple components, the initial installation posture of the galvanometer device 3 may be slightly tilted (pitch or yaw angle deviation). This will cause the static emission point of the laser beam to deviate from the preset focus, which manifests as a shift in the position of the output spot. The adjustment mechanism of this invention uses mechanical adjustment to tilt the galvanometer device 3 as a whole, thereby fine-tuning the direction of the laser beam and achieving precise correction of the spot position. The ultimate goal is to ensure that the laser beam is always accurately focused on the target point of the workpiece, thereby improving the processing reliability and efficiency of the handheld welding torch.

[0103] For example, assume that the spot formed by the laser beam on the workpiece surface deviates from the theoretical focal point by 2 mm in the +X direction.

[0104] According to the three-point support principle, the support height of the fixed seat 1 on the +Y side needs to be raised so that the galvanometer device 3 can rotate clockwise around the X-axis to compensate for the tilt angle.

[0105] Adjust the adjusting component 2 located on the Y side of the fixed base 1 to raise it by 0.25mm, thereby forming a controllable gap between the fixed base 1 and the mounting base surface;

[0106] The first locking member is passed through the first mounting hole 204 on the adjusting member 2 and vertically locked to the mounting base surface of the galvanometer cavity 4 to eliminate the mounting gap;

[0107] Retighten the second locking parts at the two second mounting holes 102 on the fixed base 1 to ensure that the three-point support structure is completely fixed;

[0108] Finally, confirm that the spot position has been corrected to the expected position by checking the welding torch viewing window or using a calibrator.

[0109] In handheld welding torch applications, the adjustment mechanism precisely controls the spatial orientation of the optical lenses, thereby accurately adjusting the laser beam and significantly improving equipment processing precision and work efficiency. Furthermore, its detachable locking mechanism and universal screw-on structure facilitate installation, maintenance, and operation, and are compatible with various tools and locking component specifications, effectively reducing equipment maintenance costs, improving assembly efficiency, and making it suitable for diverse industrial scenarios.

[0110] This embodiment also provides a laser processing device, including the handheld welding torch described above.

[0111] The laser processing equipment adjusts the relative position between the protrusion 201 of the adjusting member 2 and the end face of the fixed base 1, so that the fixed base 1 and the mounting base surface have a controllable distance, thereby adjusting the assembly angle between the galvanometer device 3 and the galvanometer cavity 4, and thus changing the position of the output spot of the laser processing equipment.

[0112] In laser processing equipment applications, the adjustment mechanism can precisely control the spatial attitude of optical lenses, thereby accurately adjusting the laser beam and significantly improving the processing accuracy and work efficiency of the equipment. Furthermore, its detachable locking components and universal screw-on structure facilitate installation, maintenance, and operation, and are compatible with various tools and locking component specifications, effectively reducing equipment maintenance costs, improving assembly efficiency, and making it suitable for diverse industrial scenarios.

[0113] For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations, but obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this invention.

Claims

1. An adjustment mechanism, characterized in that, The adjustment mechanism includes: A fixing seat, the fixing seat having a reference end face and having at least one adjustment hole extending axially through the fixing seat; An adjusting component includes a protrusion and a connecting part. One end of the connecting part is fixedly connected to the protrusion, and the other end is embedded in an adjusting hole. The connecting part and the adjusting hole form a mechanical connection that allows relative displacement. The end face of the connecting part located inside the adjustment hole is provided with a screwing structure for applying adjustment force to adjust the distance between the protrusion and the reference end face of the fixed seat.

2. The adjusting mechanism according to claim 1, characterized in that, The protrusion and the connecting part of the adjusting component are integrally formed.

3. The adjusting mechanism according to claim 1, characterized in that, One end face of the adjustment hole is lower than the reference end face of the fixed base, and the protrusion is located on the side of the adjustment hole that is lower than the reference end face.

4. The adjusting mechanism according to claim 1, characterized in that, The end face of the protrusion of the adjusting member away from the connecting part is provided with a screwing structure for applying adjusting force.

5. The adjusting mechanism according to claim 4, characterized in that, The screwing structure is a groove, a protrusion, or a combination of both.

6. The adjusting mechanism according to claim 1, characterized in that, The outer circumferential surface of the connecting part is provided with an external thread, and the inner wall of the adjusting hole is provided with an internal thread. The connecting part and the adjusting hole are connected by threads to achieve a mechanical connection relationship that allows for relative displacement.

7. The adjusting mechanism according to claim 1, characterized in that, The adjusting component is an axially through hollow structure, which forms a first mounting hole for inserting a first locking component.

8. The adjusting mechanism according to claim 7, characterized in that, The fixed base is also provided with at least one second mounting hole, which is spaced apart from the first mounting hole and is used to pass through a second locking member. The first locking member and the second locking member are used to lock and fix the fixed base to the external equipment mounting base. The end face of the protrusion away from the connecting part is used to abut against the external equipment mounting base, so that a controllable distance is generated between the fixed base and the external equipment mounting base.

9. The adjusting mechanism according to claim 8, characterized in that, There are installation gaps between the first mounting hole and the first locking member, and between the second mounting hole and the second locking member. The fixing seat can be finely adjusted in any direction perpendicular to the hole axis.

10. The adjusting mechanism according to claim 9, characterized in that, Both the first mounting hole and the second mounting hole are smooth holes, and both the first locking member and the second locking member are axial force locking members.

11. The adjusting mechanism according to claim 10, characterized in that, The axial force locking component is a three-combination screw.

12. A galvanometer device, characterized in that, include: The adjusting mechanism as described in any one of claims 1-11; A drive mechanism, which is fixedly connected to the fixed base of the adjustment mechanism; An optical lens is fixedly connected to the driving mechanism and located on one side of the reference end face of the adjustment mechanism fixing seat. The adjustment mechanism is used to adjust the spatial attitude of the optical lens.

13. A handheld welding torch, characterized in that, include: A housing, wherein a galvanometer cavity is provided on the housing, and a mounting base surface is provided inside the galvanometer cavity; As described in claim 12, the mounting base surface is disposed opposite to the fixed seat end face of the adjustment mechanism in the galvanometer device, and the protrusion can be made to abut against the mounting base surface by means of the adjustment member, so that a controllable distance is generated between the fixed seat and the mounting base surface.

14. A laser processing device, characterized in that, Includes the handheld welding torch as described in claim 13.

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