Angle adjustable hand-held laser welder

Abstract

The application relates to the technical field of laser welding machines, in particular to an angle-adjustable hand-held laser welding machine, which comprises a main cabinet body, a fiber optic line is fixedly connected and installed on the upper portion of one side of the rear end of the outer surface of the main cabinet body, the other end of the fiber optic line is fixedly connected and installed with a hand-held welding gun, a positioning screw hole is fixedly arranged in the middle of the upper surface of the hand-held welding gun, a positioning screw pin is spirally inserted and arranged on the inner surface of the positioning screw hole, first supporting frames are fixedly arranged on the middle portions of the two sides of the outer surface of the hand-held welding gun, assembling seats are fixedly arranged on the upper surfaces of the first supporting frames, assembling blocks are spirally inserted and arranged on the inner surfaces of the assembling seats, connecting rods are protrusively arranged on the middle portions of the lower surfaces of the assembling blocks and extend out of the assembling seats, and a protractor is sleeved and arranged on the lower portion of the outer surface of the connecting rod. The horizontal welding angle of the hand-held welding gun can be positioned and adjusted, the welding seam range can be accurately controlled, the welding seam quality can be further improved, and the welding operation difficulty can be reduced.

Description

Technical Field

[0001] This invention relates to the field of laser welding machine technology, and more specifically, to a handheld laser welding machine with adjustable angle. Background Technology

[0002] A laser welding machine is a device that uses laser as a heat source to weld workpieces through a handheld device. It has the advantages of flexible and convenient operation and no limitation on welding distance. It can be used to weld any part and angle of the workpiece and is suitable for various regular or irregular welds, breaking the operation limitations of the workbench.

[0003] In the current handheld laser welding machine, the operator needs to hold the welding torch and control the welding operation. However, the welding range needs to be adjusted according to the different requirements of the weld. In order to ensure the stability of the weld quality, the operator needs to control the uniformity of the welding range adjustment, which increases the difficulty of the welding operation. Secondly, during the long-term handheld welding operation, the operator's hand is not supported and is in a suspended state for a long time, which further increases the difficulty of the welding operation and increases the labor intensity of the operator, thus further affecting the weld quality.

[0004] Based on this, an angle-adjustable handheld laser welding machine is proposed. Summary of the Invention

[0005] The main objective of this invention is to provide an angle-adjustable handheld laser welding machine to overcome the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides an angle-adjustable handheld laser welding machine, comprising a main cabinet, an optical fiber fixedly connected to the upper part of one side of the rear end of the outer surface of the main cabinet, a handheld welding gun fixedly connected to the other end of the optical fiber, a handle fixedly installed in the middle of the lower surface of the handheld welding gun, an on / off switch fixedly installed in the upper rear end of the outer surface of the handle, a support ring fixedly installed in the lower part of the outer surface of the handle, a wire feed bracket fixedly installed in the rear end of the lower surface of the handheld welding gun, and a control handle fixedly installed in the middle of the front end of the outer surface of the handheld welding gun.

[0007] The upper surface of the handheld welding gun is fixedly provided with a positioning screw hole in the middle, and a positioning screw pin is spirally inserted into the inner surface of the positioning screw hole. The two sides of the outer surface of the handheld welding gun are fitted with a first support frame.

[0008] The upper surface of the first support frame is fixedly equipped with an assembly base. An assembly block is spirally inserted into the inner surface of the assembly base. A connecting rod protruding from the middle of the lower surface of the assembly block extends outward through the assembly base. A protractor is sleeved on the lower part of the outer surface of the connecting rod. A limiting groove protrudes from the middle of the inner top surface of the protractor. A positioning rod is movably sleeved on the upper and middle parts of the outer surface of the limiting groove. The two sets of positioning rods are arranged in an overlapping state and are arranged in a "V" shape. A locking nut is spirally sleeved and fixedly installed on the lower part of the outer surface of the limiting groove. The upper surface of the locking nut is in contact with the lower surface of the positioning rod.

[0009] The rear end of the upper surface of the protractor is provided with an arc-shaped positioning groove, and the other end of the positioning screw extends into the positioning groove through the gap between the two sets of positioning rods.

[0010] The lower rear end of the outer surface of the first support frame is provided with a second support frame protruding and fixedly mounted. The outer surfaces of the other ends of the second support frame are respectively provided with a third support frame that is close to each other. The lower surface of the third support frame is provided with a sliding frame.

[0011] A support base is fixedly installed on the lower surface of the first support frame. An adjustment groove matching the support ring is opened on the inner surface of the support base. The support base is sleeved on the outer surface of the support ring through the adjustment groove. The front and rear ends of the outer surface of the support base are both provided with fixed ears. A fixing bolt is spirally inserted and installed on one side of the outer surface of the fixing ear. A fixing ring is spirally sleeved and installed on the lower part of the outer surface of the mounting base.

[0012] As a further improvement of the present invention, a gripping frame is fixedly provided on the side of the outer surface of the first support frame that is close to each other. An arc-shaped guide frame is fixedly provided on the upper rear end of the outer surface of the gripping frame. A guide groove is opened in the middle of the rear end of the outer surface of the guide frame. An opening and closing pin is inserted and installed in the middle of the inner surface of the guide groove. The output end of the opening and closing pin is in contact with the switch.

[0013] As a further improvement of the present invention, a cross-shaped limiting block is provided on the lower part of the outer surface of the connecting rod, a locking ring is spirally sleeved on the outer side of the lower surface of the connecting rod, the limiting groove is sleeved on the outer surface of the limiting block, and the upper surface of the locking ring is in contact with the lower surface of the limiting groove.

[0014] As a further improvement of the present invention, a fixing component is fixedly installed on the opposite side of the outer surface of the other end of the second support frame. The fixing component includes a fixing shaft. The output end of the fixing shaft passes through one side of the outer surface of the second support frame and the third support frame and extends outward. A fixing ring is spirally sleeved and fixedly installed on the outer surface of the output end of the fixing shaft.

[0015] As a further improvement of the present invention, the lower parts of both sides of the outer surface of the third support frame are provided with limiting ears, and a positioning pin is inserted through the middle of the upper surface of the limiting ears.

[0016] As a further improvement of the present invention, an arc-shaped guide ring is fixedly installed on the upper part of both sides of the outer surface of the sliding frame. A plurality of limiting holes are evenly opened through the outer surface of the guide ring. The output end of the positioning pin is inserted into the limiting hole. An opening is opened in the middle of the lower surface of the sliding frame. A sliding wheel is movably installed on the inner surface of the opening of the sliding frame.

[0017] As a further improvement of the present invention, the outer ring surface of the sliding wheel is uniformly provided with gear teeth, and the upper part of the front end and the rear end of the outer surface of the sliding frame are both protruding and fixedly installed with mounting ears. A speed limiting pin is movably inserted through the upper surface of the mounting ear, and the lower surface of the speed limiting pin is conical and matches the gear teeth of the sliding wheel. A compression spring is fixedly sleeved on the upper part of the outer surface of the speed limiting pin, and the other end of the compression spring contacts the lower surface of the mounting ear.

[0018] The beneficial effects of this invention are:

[0019] This invention can position and adjust the horizontal welding angle of the handheld welding torch, enabling accurate control of the weld range, ensuring the uniformity of the weld connection, avoiding the problem of increased welding difficulty caused by the need for operators to control the weld range themselves, thus reducing the difficulty of welding operations and improving the stability of weld quality.

[0020] This invention provides a sliding support effect for the handheld welding torch and allows for stable adjustment of the welding distance between the torch and the workpiece. This prevents the operator's hand from being suspended in the air for extended periods, reducing the operator's workload. Furthermore, it limits the movement speed of the handheld welding torch during welding, maintaining uniform torch speed. Combined with the adjustment of the horizontal welding angle, this improves the welding effect of the handheld torch, further enhancing weld quality and reducing the difficulty of welding operations. Attached Figure Description

[0021] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the rear three-dimensional structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the disassembled parts of the present invention;

[0025] Figure 4 This is a schematic diagram showing the disassembled structure of the handheld welding gun of the present invention;

[0026] Figure 5 This is a schematic diagram showing the disassembled structure of the first support frame of the present invention;

[0027] Figure 6 This is a schematic diagram showing the disassembled structure of the first support frame of the present invention;

[0028] Figure 7 This is a schematic diagram showing the disassembled structure of the protractor of the present invention;

[0029] Figure 8 This is a schematic diagram showing the disassembled structure of the sliding frame of the present invention.

[0030] In the diagram: 1. Main cabinet; 101. Fiber optic cable; 2. Handheld welding torch; 201. Handgrip; 202. Power switch; 203. Support ring; 204. Control handle; 205. Positioning screw; 206. Positioning pin; 207. Wire feed bracket; 3. First support frame; 301. Support base; 302. Adjustment groove; 303. Fixing lug; 304. Fixing bolt; 305. Assembly base; 306. Fixing ring; 4. Grip frame; 401. Guide frame; 402. Guide groove; 403. Opening / closing pin 5. Assembly block; 501. Connecting rod; 502. Limiting block; 503. Locking ring; 6. Protractor; 601. Limiting groove post; 602. Positioning rod; 603. Locking nut; 604. Positioning groove; 7. Second support frame; 701. Third support frame; 702. Fixing component; 703. Limiting ear; 704. Positioning pin; 8. Sliding frame; 801. Guide ring; 802. Limiting hole; 803. Sliding wheel; 804. Assembly ear; 805. Speed ​​limiting pin; 806. Compression spring. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the invention described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0035] Please see Figures 1-8 As shown, an angle-adjustable handheld laser welding machine includes a main cabinet 1. An optical fiber 101 is fixedly connected to the upper part of one side of the rear end of the outer surface of the main cabinet 1. The other end of the optical fiber 101 is fixedly connected to a handheld welding gun 2. A handle 201 is fixedly installed in the middle of the lower surface of the handheld welding gun 2. A switch 202 is fixedly installed in the upper part of the rear end of the outer surface of the handle 201. A support ring 203 is fixedly installed in the lower part of the outer surface of the handle 201. A control handle 204 is fixedly installed in the middle of the front end of the outer surface of the handheld welding gun 2. A positioning screw 205 is fixedly provided in the middle of the upper surface of the handheld welding gun 2. A positioning screw pin 206 is screwed into the inner surface of the positioning screw 205. A wire feed bracket 207 is fixedly installed in the rear end of the lower surface of the handheld welding gun 2. A first support frame 3 is fixedly installed in the middle of both sides of the outer surface of the handheld welding gun 2.

[0036] It should be noted that the laser is generated by the main cabinet 1 and transmitted to the handheld welding gun 2 via the fiber optic cable 101. The handheld welding gun 2 focuses the laser onto the surface of the workpiece to be welded to achieve the welding operation. The laser focusing emission of the handheld welding gun 2 is started and closed by the switch 202 set on the handle 201, so as to control the welding laser.

[0037] With the support ring 203 serving as the support point of the first support frame 3, the support ring 203 can be used to drive the handle 201 to move while controlling the first support frame 3, thereby indirectly controlling the adjustment of the horizontal welding angle of the handheld welding gun 2. The handheld welding gun 2 can be controlled to swing horizontally by the control handle 204 to achieve the effect of adjusting the horizontal welding angle. The positioning screw 205 provided on the handheld welding gun 2 can be used for the installation and removal of the positioning screw 206 and the handheld welding gun 2. The positioning screw 206 can limit the amplitude of the horizontal swing of the handheld welding gun 2, thereby ensuring the uniformity of the horizontal welding angle adjustment of the handheld welding gun 2.

[0038] A support base 301 is fixedly installed on the lower surface of the first support frame 3. An adjustment groove 302 matching the support ring 203 is opened on the inner surface of the support base 301. The support base 301 is sleeved on the outer surface of the support ring 203 through the adjustment groove 302. The front and rear ends of the outer surface of the support base 301 are both provided with fixed ears 303. A fixing bolt 304 is spirally inserted and installed on one side of the outer surface of the fixing ear 303. An assembly base 305 is fixedly installed on the upper surface of the first support frame 3. A fixing ring 306 is spirally sleeved on the lower part of the outer surface of the assembly base 305.

[0039] It should be noted that by locking the adjustment groove 302 onto the outer surface of the support ring 203, the movable connection between the support base 301 and the support ring 203 can be completed. At this time, by using the support base 301 and the support ring 203 as support points, the support ring 203 can be controlled to rotate and adjust along the adjustment groove 302 while the support base 301 remains unchanged, thereby indirectly achieving the effect of controlling the handheld welding torch 2 to adjust the welding angle.

[0040] The two sets of support seats 301 can be fixedly connected by using the fixing bolts 304 spirally penetrating the fixing ears 303, so as to facilitate the assembly and disassembly of the support seats 301. The first support frame 3 can be disassembled without adjusting the welding angle of the handheld welding gun 2.

[0041] A gripping frame 4 is fixedly provided on one side of the outer surface of the first support frame 3 that is close to each other. An arc-shaped guide frame 401 is fixedly provided on the upper rear end of the outer surface of the gripping frame 4. A guide groove 402 is opened in the middle of the rear end of the outer surface of the guide frame 401. An opening and closing pin 403 is inserted and installed in the middle of the inner surface of the guide groove 402. The output end of the opening and closing pin 403 is in contact with the switch 202.

[0042] It should be noted that by setting up the grip frame 4 for the operator to hold the hand-held welding gun 2, while the operator holds the hand-held welding gun 2 through the interval of the grip frame 4, direct contact between the operator and the hand-held welding gun 2 is avoided, thereby ensuring the independence of the hand-held welding gun 2 and facilitating the adjustment of the horizontal welding angle.

[0043] Pressing the opening and closing pin 403 can press the switch 202, thereby indirectly controlling the start-up of the handheld welding torch 2. When the handheld welding torch 2 is started, it will swing horizontally to adjust the horizontal welding angle. During the adjustment process, the guide frame 401 will match the swing amplitude of the handheld welding torch 2. At the same time, in order to ensure the operation effect of the handheld welding torch 2 in the horizontal swing state, the opening and closing pin 403 will be continuously pressed to ensure the open state of the switch 202. At this time, as the handheld welding torch 2 swings horizontally, the opening and closing pin 403 will be driven to slide in the guide groove 402 opened on the guide frame 401, so as to achieve the effect of the opening and closing pin 403 swinging synchronously with the handheld welding torch 2.

[0044] Assembly block 5 is helically inserted into the inner surface of assembly base 305. A connecting rod 501 protrudes from the middle of the lower surface of assembly block 5, extending outward through assembly base 305. A cross-shaped limiting block 502 protrudes from the lower part of the outer surface of connecting rod 501. A locking ring 503 is helically fitted on the outer surface of the lower surface of connecting rod 501. A protractor 6 is fitted on the lower part of the outer surface of connecting rod 501. A limiting groove 601 protrudes from the middle of the inner top surface of protractor 6. The limiting groove 601 is fitted on the outer surface of limiting block 502. The upper surface of locking ring 503 is in contact with the lower surface of limiting groove 601.

[0045] It should be noted that by spirally inserting the assembly block 5 into the assembly base 305, a stable connection between the connecting rod 501 and the first support frame 3 can be indirectly achieved. By setting the limiting block 502 in conjunction with the limiting groove post 601, the installation stability of the protractor 6 can be ensured when it is fitted onto the connecting rod 501.

[0046] Positioning rods 602 are movably fitted on the upper and middle parts of the outer surface of the limiting groove column 601. An arc-shaped positioning groove 604 is opened at the rear end of the upper surface of the protractor 6. The other end of the positioning screw 206 extends through the gap between the two sets of positioning rods 602 into the positioning groove 604. The two sets of positioning rods 602 are arranged in an overlapping state and are arranged in a "V" shape. A locking nut 603 is spirally fitted and fixed on the lower part of the outer surface of the limiting groove column 601. The upper surface of the locking nut 603 is in contact with the lower surface of the positioning rod 602.

[0047] It should be noted that the inner top surface of the protractor 6 is provided with an angle line. By adjusting the included angle distance between the two sets of positioning rods 602, it can correspond to the angle line on the inner top surface of the protractor 6. Thus, the included angle distance between the two sets of positioning rods 602 can be adjusted according to the horizontal spacing of the workpiece weld to achieve the positioning of the horizontal welding angle. At this time, the other end of the positioning pin 206 extends through the gap between the two sets of positioning rods 602 into the positioning groove 604. When the handheld welding gun 2 is controlled to adjust the horizontal welding angle, the positioning pin 206 will swing synchronously along the positioning groove 604. At this time, the swing amplitude of the positioning pin 206 between the two sets of positioning rods 602 is the horizontal welding angle of the handheld welding gun 2. The swing amplitude of the positioning pin 206 can be clamped and limited by the two sets of positioning rods 602, thereby ensuring the uniformity of the horizontal welding angle adjustment of the handheld welding gun 2.

[0048] The lower rear end of the outer surface of the first support frame 3 is provided with a second support frame 7 protruding and fixedly mounted. The outer surfaces of the other end of the second support frame 7 are respectively fixedly mounted with a third support frame 701 on the side that is close to each other. The outer surfaces of the other end of the second support frame 7 are respectively fixedly mounted with a fixing component 702 on the side that is far apart from each other. The fixing component 702 includes a fixing shaft. The output end of the fixing shaft passes through one side of the outer surface of the second support frame 7 and the third support frame 701 and extends outward. A fixing ring is spirally sleeved and fixedly mounted on the outer surface of the output end of the fixing shaft.

[0049] It should be noted that by controlling the tightness of the fixing component 702, the support height of the third support frame 701 can be easily adjusted.

[0050] The lower sides of both sides of the outer surface of the third support frame 701 are provided with limiting ears 703. The upper surface of the limiting ears 703 is through-inserted with a positioning pin 704. The lower surface of the third support frame 701 is movably mounted with a sliding frame 8. The upper sides of both sides of the outer surface of the sliding frame 8 are fixedly mounted with arc-shaped guide rings 801. The outer surface of the guide rings 801 is evenly provided with several limiting holes 802. The output end of the positioning pin 704 is inserted into the limiting hole 802. The lower surface of the sliding frame 8 is provided with an opening. The sliding frame 8 is movably mounted with a sliding wheel 803 through the inner surface of the opening.

[0051] It should be noted that the guide ring 801 can control the unfolding angle of the sliding frame 8 relative to the third support frame 701, thereby adjusting the support position of the third support frame 701 when facing the weld seam at different positions of the workpiece to be welded. During adjustment, the guide ring 801 will rotate inside the third support frame 701. When adjusted to the corresponding position, the positioning pin 704 can be inserted through the limiting ear 703 and the limiting hole 802 opened on the guide ring 801 at the same time to fix the guide ring 801, thereby indirectly fixing the adjustment angle of the sliding frame 8. The sliding wheel 803 can ensure the normal movement of the sliding frame 8 while supporting it, thus achieving the effect of sliding support.

[0052] The outer ring surface of the sliding wheel 803 is evenly provided with gear teeth. The upper part of the front end and the rear end of the outer surface of the sliding frame 8 are both protruding and fixedly installed with mounting ears 804. The upper surface of the mounting ears 804 is movably inserted and installed with a speed limiting pin 805. The lower surface of the speed limiting pin 805 is conical and matches the gear teeth of the sliding wheel 803. The upper part of the outer surface of the speed limiting pin 805 is fixedly sleeved with a compression spring 806. The other end of the compression spring 806 is in contact with the lower surface of the mounting ears 804.

[0053] It should be noted that when the sliding wheel 803 rolls, it drives the sliding frame 8 to move. The teeth on the outer ring of the sliding wheel 803 ensure the stability of its rolling. During the rolling process, the teeth of the sliding wheel 803 are trapezoidal, so the rolling slope can push the speed limiting pin 805 upward. At this time, the compression spring 806 on the speed limiting pin 805 is compressed with the mounting lug 804 as the support point. When one of the teeth on the sliding wheel 803 disengages, the compression spring 806... The pressure on 6 can be released, and its own elasticity can drive the speed limiting pin 805 to descend and reset, and mesh with the tooth surface of the subsequent wheel teeth. At the moment of meshing, the rolling of the sliding wheel 803 is restricted. At the same time, as the operator applies a pulling force to the sliding wheel 803, the sliding wheel 803 will roll again. Repeating the above process, the movement of the sliding frame 8 can be limited at the moment the rolling of the sliding wheel 803 is restricted, thereby indirectly achieving the effect of controlling the welding speed of the handheld welding torch 2, ensuring the uniformity of the welding speed of the handheld welding torch 2, and thus improving the quality of the weld.

[0054] When using this invention, the operator first determines the required horizontal welding angle of the handheld welding gun 2 according to the weld range required for the workpiece to be welded. The operator controls the unfolding distance between the two sets of positioning rods 602 according to the protractor 6 corresponding to the horizontal welding angle. When the position on the protractor 6 corresponding to the unfolding distance is equal to the required horizontal welding angle, the two sets of positioning rods 602 can be locked and fixed. At this time, the positioning screw 206 can be inserted into the positioning screw hole 205 through the positioning groove 604 and the distance between the two sets of positioning rods 602, thus completing the initial preparation for the welding operation.

[0055] Secondly, the fixing component 702 can be adjusted to a loose state according to the weld depth requirements, thereby adjusting the support height of the third support frame 701, thereby controlling the distance between the handheld welding gun 2 and the workpiece. After the adjustment is completed, the fixing component 702 can be locked again. At this time, the sliding wheel 803 can be brought into contact with the workpiece surface, and the third support frame 701, together with the second support frame 7 and the first support frame 3, provides support for the handheld welding gun 2.

[0056] The welder can hold the handheld grip 4 to control the handheld welding torch 2 and press the opening and closing pin 403 to indirectly control the opening and closing key 202 to start the handheld welding torch 2. At this time, the welder can align the nozzle of the handheld welding torch 2 with the workpiece welding position and move the control handle 204 horizontally with the welding position as the center point. The horizontal swing of the control handle 204 will drive the handheld welding torch 2 to swing horizontally. During the swing, the positioning screw 206 will swing synchronously along the positioning groove 604. When the positioning screw 206 contacts one of the positioning rods 602, the control handle 204 can be moved in the opposite direction until the positioning screw 206 contacts the other set of positioning rods 602. At this time, the swing amplitude of the positioning screw 206 between the two sets of positioning rods 602 is the horizontal welding angle of the handheld welding torch 2.

[0057] While welding, the welder can drag the handheld welding torch 2 to move. During the movement, the sliding wheel 803 will roll on the surface of the workpiece. The teeth set on the outer ring of the sliding wheel 803 can ensure the stability of the sliding wheel 803's rolling. During the rolling process, the teeth of the sliding wheel 803 are arranged in a trapezoidal shape, so the rolling slope can push the speed limiting pin 805 to rise. At this time, the compression spring 806 set on the speed limiting pin 805 can be compressed with the mounting ear 804 as the support point. When one of the tooth surfaces of the sliding wheel 803 disengages, the pressure on the compression spring 806 can be released, and its own elasticity can drive the speed limiting pin 805 to descend and reset, and it can mesh with the tooth surfaces of the subsequent teeth. Thus, at the moment of meshing, the rolling of the sliding wheel 803 is limited. At the same time, as the operator applies a pulling force to the sliding wheel 803, the sliding wheel 803 will roll again. Repeating the above process, the movement of the sliding frame 8 can be limited at the moment the rolling of the sliding wheel 803 is limited, ensuring the uniformity of the welding speed of the handheld welding torch 2.

[0058] The above are merely embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. An angle-adjustable handheld laser welding machine, comprising a main cabinet (1), characterized in that, An optical fiber (101) is fixedly connected to the upper part of one side of the rear end of the outer surface of the main cabinet (1). The other end of the optical fiber (101) is fixedly connected to a handheld welding gun (2). A handle (201) is fixedly installed in the middle of the lower surface of the handheld welding gun (2). A switch (202) is fixedly installed in the upper part of the rear end of the outer surface of the handle (201). A support ring (203) is fixedly installed in the lower part of the outer surface of the handle (201). A wire feed bracket (207) is fixedly installed in the rear end of the lower surface of the handheld welding gun (2). A control handle (204) is fixedly installed in the middle of the front end of the outer surface of the handheld welding gun (2). The upper surface of the handheld welding torch (2) is fixedly provided with a positioning screw (205) in the middle, and a positioning screw (206) is spirally inserted into the inner surface of the positioning screw (205). The two sides of the outer surface of the handheld welding torch (2) are fitted with a first support frame (3). The upper surface of the first support frame (3) is fixedly installed with an assembly seat (305). The inner surface of the assembly seat (305) is screwed with an assembly block (5). The lower surface of the assembly block (5) is provided with a connecting rod (501) that extends outward through the assembly seat (305). The lower part of the outer surface of the connecting rod (501) is fitted with a protractor (6). The middle part of the inner top surface of the protractor (6) is provided with a limiting groove (601). The upper and middle parts of the outer surface of the limiting groove (601) are movably fitted with positioning rods (602). The two sets of positioning rods (602) are arranged in a superimposed state. The two sets of positioning rods (602) are arranged in a "V" shape. The lower part of the outer surface of the limiting groove (601) is screwed with a locking nut (603). The upper surface of the locking nut (603) is in contact with the lower surface of the positioning rod (602). The rear end of the upper surface of the protractor (6) is provided with an arc-shaped positioning groove (604), and the other end of the positioning screw (206) extends through the gap between the two sets of positioning rods (602) into the positioning groove (604). The lower rear end of the outer surface of the first support frame (3) is provided with a second support frame (7) which is fixedly protruding. The outer surfaces of the other end of the second support frame (7) are movably installed with a third support frame (701) on the side that is close to each other. The lower surface of the third support frame (701) is movably installed with a sliding frame (8). A support base (301) is fixedly installed on the lower surface of the first support frame (3). An adjustment groove (302) matching the support ring (203) is opened on the inner surface of the support base (301). The support base (301) is sleeved on the outer surface of the support ring (203) through the adjustment groove (302). The front end and rear end of the outer surface of the support base (301) are both provided with fixed ears (303). A fixing bolt (304) is spirally inserted and installed on one side of the outer surface of the fixing ear (303). A fixing ring (306) is spirally sleeved and installed on the lower part of the outer surface of the assembly base (305).

2. The handheld laser welding machine with adjustable angle according to claim 1, characterized in that, A gripping frame (4) is fixedly provided on one side of the outer surface of the first support frame (3) that is close to each other. An arc-shaped guide frame (401) is fixedly provided on the upper rear end of the outer surface of the gripping frame (4). A guide groove (402) is opened in the middle of the rear end of the outer surface of the guide frame (401). An opening and closing pin (403) is inserted and installed in the middle of the inner surface of the guide groove (402). The output end of the opening and closing pin (403) is in contact with the switch (202).

3. The handheld laser welding machine with adjustable angle according to claim 1, characterized in that, The lower part of the outer surface of the connecting rod (501) is provided with a cross-shaped limiting block (502). A locking screw (503) is spirally sleeved on the outer surface of the lower surface of the connecting rod (501). The limiting groove (601) is sleeved on the outer surface of the limiting block (502). The upper surface of the locking screw (503) is in contact with the lower surface of the limiting groove (601).

4. The handheld laser welding machine with adjustable angle according to claim 1, characterized in that, A fixing component (702) is fixedly installed on the opposite side of the outer surface of the second support frame (7). The fixing component (702) includes a fixing shaft. The output end of the fixing shaft passes through one side of the outer surface of the second support frame (7) and the third support frame (701) and extends outward. A fixing ring is spirally fitted and fixedly installed on the outer surface of the output end of the fixing shaft.

5. The handheld laser welding machine with adjustable angle according to claim 1, characterized in that, The lower part of both sides of the outer surface of the third support frame (701) is provided with a limiting ear (703), and a positioning pin (704) is inserted through the middle of the upper surface of the limiting ear (703).

6. The handheld laser welding machine with adjustable angle according to claim 5, characterized in that, Both sides of the upper part of the outer surface of the sliding frame (8) are fixedly installed with arc-shaped guide rings (801). The outer surface of the guide rings (801) is evenly provided with several limiting holes (802). The output end of the positioning pin (704) is inserted into the limiting hole (802). The middle part of the lower surface of the sliding frame (8) is provided with an opening. The sliding frame (8) is movably installed with a sliding wheel (803) through the inner surface of the opening.

7. The handheld laser welding machine with adjustable angle according to claim 6, characterized in that, The outer ring surface of the sliding wheel (803) is uniformly provided with gear teeth. The upper part of the front end and the rear end of the outer surface of the sliding frame (8) are both protruding and fixedly installed with mounting ears (804). The upper surface of the mounting ears (804) is movably inserted and installed with a speed limiting pin (805). The lower surface of the speed limiting pin (805) is conical and matches the gear teeth of the sliding wheel (803). The upper part of the outer surface of the speed limiting pin (805) is fixedly sleeved with a compression spring (806). The other end of the compression spring (806) is in contact with the lower surface of the mounting ear (804).

Images