Robot laser welding gun head
By introducing an anti-collision reset seat, mounting seat, and wire guide assembly into the laser welding gun head, the problems of uncontrollable wire supply and deviation were solved, achieving stable wire supply and improved welding quality.
Patent Information
- Application Number
- CN202422871750.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-25
AI Technical Summary
In existing laser welding guns, the wire feeding and retraction lengths are uncontrollable during the wire supply and retraction process, and the wire is prone to deviation, resulting in unstable welding quality.
A robotic laser welding gun head was designed, which included an anti-collision reset seat, a mounting seat, a wire guide assembly, and a drive assembly. The gun head was automatically reset by the anti-collision reset seat, the angle design of the mounting seat prevented the optical cable from getting stuck, the wire guide assembly guided the welding wire, and the drive assembly realized active wire feeding and pulling back to ensure a stable supply of welding wire.
It achieves stable supply and length control of welding wire, avoids wire deviation, ensures welding quality, prevents damage to welding torch tip from collision, and improves welding accuracy and applicability.
Smart Images
Figure CN223476587U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser welding auxiliary components, specifically to a robotic laser welding gun head. Background Technology
[0002] With the continuous development of the industrial sector, laser welding robots have been widely used. Laser welding robots are welding equipment that use semiconductor lasers as the welding heat source. The principle is to use a robotic arm to drive the laser welding gun head to focus the laser beam on the weld seam, heat the surface of the workpiece to melt it, and act on the metal to form a connection. Laser welding is generally divided into two types: wire welding and wireless welding. In the wire welding process, the laser beam is used to heat the surface of the workpiece, while the welding wire is heated and melted at the same time as a supplementary material, filling the weld seam to form a weld.
[0003] In the existing technology, specifically for laser welding guns that use wire welding, the feeding and pulling of the welding wire during the welding process is accomplished by the laser welding gun. Since there is a long distance between the welding wire supply roller and the laser welding mechanism, if the wire is pushed and pulled using only the laser welding gun, firstly, the wire feeding and retraction lengths are uncontrollable, and secondly, the welding wire is prone to deviation. Utility Model Content
[0004] The purpose of this utility model is to provide a robotic laser welding gun head to solve the above problems. The anti-collision reset seat is fixedly connected to the mounting seat through the fixed seat, and the mounting seat is fixedly installed on the side of the body of the laser welding gun head. Then, when the laser welding gun head body encounters an obstacle, it can automatically lift the gun and reset by triggering the anti-collision reset seat and return the focus to the initial position. See the following description for details.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] This utility model provides a robotic laser welding gun head, including a laser welding gun head body and a welding wire. The side of the laser welding gun head body is fixedly connected to an anti-collision reset seat via a mounting base. The mounting base has upper and lower parts, which are respectively connected to the laser welding gun head body and the fixed base of the anti-collision reset seat. The included angle between the upper and lower parts of the mounting base is an obtuse angle, so that when the laser welding gun head body encounters an obstacle, it can automatically lift and reset the gun by triggering the anti-collision reset seat.
[0007] The front part of the laser welding gun head body is equipped with a base plate, which is arranged to unfold vertically in the horizontal direction, and a wire guide assembly for guiding the welding wire to be fed outward is fixed at the upper and lower positions in front of the base plate.
[0008] A drive assembly and a wire feeding assembly are respectively installed on both sides of the front part of the base plate, so as to realize the active pushing and active pulling of the welding wire by driving the wire feeding assembly through the drive assembly.
[0009] Preferably, the upper part of the mounting base is vertically arranged, the lower part of the mounting base extends downward at an angle, and the included angle between the upper and lower parts of the mounting base is 140°.
[0010] Preferably, a red light focusing device for infrared focusing of the welding point of the laser welding gun body is installed at the front corner of the lower part of the mounting base.
[0011] Preferably, the wire guide assembly includes an upper wing plate and a lower wing plate. The upper wing plate and the lower wing plate are horizontally extended and fixed at the upper and lower positions in front of the base plate, respectively. An upper wire guide sleeve and a lower wire guide sleeve are vertically inserted and fixed at the same side end positions of the upper wing plate and the lower wing plate, respectively. The upper wire guide sleeve and the lower wire guide sleeve are vertically coaxially aligned. The bottom end of the lower wire guide sleeve is coaxially fixed to a wire feeding hose that extends outward to the solder supply position of the laser welding gun head. The welding wire enters from the top of the upper wire guide sleeve and is fed into the wire feeding hose from the lower wire guide sleeve.
[0012] Preferably, the drive assembly includes a drive motor, a drive pulley, and a driven pulley. The drive motor is fixedly mounted on the front side of the base plate. The drive shaft at the front of the drive motor passes through the base plate in a longitudinal sliding fit, and the drive pulley is coaxially fixed at its front end. A driven shaft (806) is rotatably connected to the front of the base plate at a position between the drive pulley and the wire feeding assembly. The driven pulley is coaxially fixed to the outside of the driven shaft (806). At the same time, a transmission belt for transmission is wound between the outer periphery of the driven pulley and the drive pulley.
[0013] Preferably, the wire feeding assembly includes an active wire feeding roller and a driven wire feeding roller. The inner circumference of the active wire feeding roller is coaxially fixed with a slewing bearing, and the inner ring of the slewing bearing is coaxially fixed with the outer periphery of the driven rotating shaft (806) to drive the active wire feeding roller to rotate together through the rotation of the driven pulley. The bottom side of the base plate away from the drive motor is longitudinally fixed with a support shaft. The outside of the support shaft is rotatably connected with a rotating arm, and the top of the rotating arm is fixedly connected with a wheel frame. The wheel frame is a shell structure and is open on the side and top near the active wire feeding roller. The driven wire feeding roller is rotatably connected between the front and rear positions of the wheel frame through a wheel axle. The welding wire passes between the active wire feeding roller and the driven wire feeding roller and is clamped by the active wire feeding roller and the driven wire feeding roller.
[0014] Preferably, the portion of the upper guide wire sleeve extending beyond the bottom surface of the upper wing plate is coaxially fixed with a fixing sleeve, and the periphery of the fixing sleeve is fixedly connected with a screw extending laterally outward. The top side of the wheel frame away from the driven wire feeding roller is provided with a mating groove in the lateral direction, and the screw passes through the mating groove in a clearance fit manner. The portion of the screw extending out of the mating groove is coaxially engaged with a clamping nut handle, and the clamping nut handle is pressed against the side surface of the wheel frame.
[0015] Preferably, both the driving pulley and the driven pulley are toothed pulleys, and the transmission belt is a toothed belt; the outer surfaces of both the driving and driven wire feeding rollers are evenly distributed with interlocking anti-slip textures, and a protective cover plate is fixed between the front ends of the upper and lower wing plates to provide shielding and protection.
[0016] Preferably, the front end of the mating groove is open and its vertical width is greater than the diameter of the screw, the clamping nut handle is a handle-style nut sleeve, and the internal thread portion of the clamping nut handle is not less than the axial length of the screw.
[0017] Preferably, a wire-clamping copper nozzle for limiting the wire clamping position is fixedly connected between the bottom end of the scale tube at the bottom of the laser welding gun head body and the bottom end of the wire feeding hose.
[0018] Using the aforementioned robotic laser welding gun head, specifically in the use of the laser welding gun head body and the pushing and pulling of the welding wire, since the anti-collision reset seat is fixedly connected to the mounting seat through the fixed seat, and the mounting seat is fixedly installed on the side of the laser welding gun head body, the laser welding gun head body can automatically lift and reset itself and return the focus to the initial position by triggering the anti-collision reset seat when it encounters an obstacle, thus avoiding collision damage to the laser welding gun head body. Furthermore, since the two parts of the mounting seat are respectively connected to the laser welding gun head body and the fixed seat of the anti-collision reset seat, and the mounting seat... The included angle between the two parts is 140°. The mounting base ensures that the laser welding gun head body does not jam the optical cable during its full rotation. Simultaneously, a red light focusing device is installed at the lower corner of the mounting base to perform infrared focusing on the welding point of the laser welding gun head body. This device accurately locates the laser focal length, ensuring the laser welding gun head body can quickly and accurately position the welding point. Furthermore, since a wire-clamping copper nozzle is fixedly connected between the bottom end of the scale tube and the bottom end of the wire feeding hose at the bottom of the laser welding gun head body, the wire-clamping limit mechanism prevents wire sticking and also prevents the laser welding gun head body from jamming. When the welding torch strikes the target area, a point of deviation may occur. Specifically, regarding the wire feeding process, a wire guide assembly is installed at the front of the base plate. This assembly includes an upper wire guide sleeve and a lower wire guide sleeve, with the outer end of the wire feeding hose at the bottom of the lower wire guide sleeve extending to the solder supply position of the laser welding torch head. This guides the wire feeding process by allowing the welding wire to enter from the top of the upper wire guide sleeve and be fed through the lower wire guide sleeve into the wire feeding hose before extending to the laser welding torch head, thus preventing the welding wire from deviating. Furthermore, the drive assembly and the wire feeding assembly are installed on both sides of the base plate, and the welding wire passes through the wire feeding assembly... The active wire feeding roller and the driven wire feeding roller of the component are clamped and pressed together, so that the driven pulley of the drive assembly can drive the active wire feeding roller of the wire feeding assembly to rotate. Then, through the rotation of the active wire feeding roller and the coordinated movement of the driven wire feeding roller, active pushing and active pulling of the welding wire can be achieved. This ensures a stable and unbiased supply of welding wire during laser welding, and also allows control over the wire feeding and pulling lengths. Furthermore, by turning the clamping nut handle along the screw axis, the wheel frame and the rotating arm can be rotated around the support shaft by a certain angle.By rotating the driven wire feeding roller at a certain angle via the wheel frame, the tightness of the wire clamping can be adjusted. This ensures stable wire feeding via the rotation of the active wire feeding roller, and also ensures that both the active and driven wire feeding rollers can accommodate wires of different diameters, thus improving the applicability of the wire feeding assembly.
[0019] The beneficial effects are as follows: 1. The anti-collision reset seat of this utility model is fixedly connected to the mounting seat through the fixed seat, and the mounting seat is fixedly installed on the side of the body of the laser welding gun head. Then, when the laser welding gun head body encounters an obstacle, it can automatically lift the gun and reset by triggering the anti-collision reset seat and return the focus to the initial position, thus avoiding the situation of collision damage to the laser welding gun head body.
[0020] 2. The two parts of the mounting base are connected to the main body of the laser welding gun and the fixed base of the anti-collision reset base, respectively, and the included angle between the two parts of the mounting base is 140°. The mounting base allows the laser welding gun body to rotate around the entire circle without jamming the optical cable. At the same time, a red light locator is installed at the lower corner of the mounting base to perform infrared focusing on the welding point of the laser welding gun body. The red light locator can accurately find the laser focal length, ensuring that the laser welding gun body can quickly and accurately position the welding point.
[0021] 3. A wire-locking copper nozzle is fixedly connected between the bottom end of the scale tube at the bottom of the laser welding gun head body and the bottom end of the wire feeding hose. The wire-locking copper nozzle can prevent wire sticking by limiting the wire position, and can also prevent the point position from shifting when the laser welding gun head body hits the gun.
[0022] 4. A wire guide assembly is installed at the front of the base plate. The wire guide assembly includes an upper wire guide sleeve and a lower wire guide sleeve at the upper and lower positions. The outer end of the wire feeding hose at the top of the upper wire guide sleeve extends to the solder entry position of the laser welding gun head body. In this way, by allowing the welding wire to enter from the bottom end of the lower wire guide sleeve and be fed into the wire feeding hose after entering the upper wire guide sleeve and extending to the laser welding gun head body, the wire feeding process can be guided and directed, avoiding the welding wire from deviating.
[0023] 5. A drive assembly and a wire feeding assembly are respectively installed on both sides of the base plate. The welding wire passes between the active and driven wire feeding rollers of the wire feeding assembly and is clamped and pressed by them. The driven pulley of the drive assembly rotates, which drives the active wire feeding roller of the wire feeding assembly to rotate. Then, through the rotation of the active wire feeding roller and the follow-up action of the driven wire feeding roller, the active pushing and active pulling of the welding wire can be achieved. This ensures that the welding wire supply is stable and does not deviate during laser welding, and also allows for control of the wire feeding and pulling length.
[0024] 6. By turning the clamping nut handle and moving it along the screw axis, the wheel frame and rotating arm can be rotated around the support shaft by a certain angle. This allows the wheel frame to drive the driven wire feeding roller to rotate by a certain angle, thereby adjusting the tightness of the wire clamp. This ensures stable wire feeding by rotating the active wire feeding roller, and also ensures that the active and driven wire feeding rollers can adapt to pushing wires of different diameters, improving the applicability of the wire feeding assembly. Attached Figure Description
[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0026] Figure 1 This is an overall isometric schematic diagram of this utility model. Figure 1 ;
[0027] Figure 2 This is an overall isometric schematic diagram of this utility model. Figure 2 ;
[0028] Figure 3 This utility model Figure 1 Diagram of the midsole plate Figure 1 ;
[0029] Figure 4 This utility model Figure 1 Schematic diagram of the base plate Figure 2 ;
[0030] Figure 5 This utility model Figure 1 A frontal view diagram;
[0031] Figure 6 This utility model Figure 1 A diagram showing the rear view.
[0032] The following are the descriptions of the reference numerals:
[0033] 1. Anti-collision reset seat; 101. Fixing seat; 2. Wire feeding hose; 3. Wire fastening copper nozzle; 4. Laser welding gun head body; 401. Scale tube; 5. Mounting seat; 6. Red light oscillator; 7. Wire guide assembly; 701. Upper wire guide sleeve; 702. Upper wing plate; 703. Lower wing plate; 704. Lower wire guide sleeve; 8. Drive assembly; 801. Drive motor; 802. Drive pulley; 803. Driven pulley; 804. 805. Drive shaft; 806. Driven shaft; 9. Wire feeding assembly; 901. Mating groove; 902. Screw; 903. Clamping nut handle; 904. Fixing sleeve; 905. Wheel frame; 906. Driven wire feeding roller; 907. Wheel axle; 908. Driven wire feeding roller; 909. Support shaft; 9010. Rotary arm; 9011. Rotary bearing; 10. Welding wire; 11. Protective cover plate; 12. Base plate. Detailed Implementation
[0034] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.
[0035] See Figures 1-6 As shown, this utility model provides a robotic laser welding gun head, including a laser welding gun head body 4 and a welding wire 10. The side of the laser welding gun head body 4 is fixedly connected to an anti-collision reset seat 1 via a mounting base 5. The mounting base 5 has upper and lower parts, which are respectively connected to the body of the laser welding gun head body 4 and to the fixed seat 101 of the anti-collision reset seat 1. The included angle between the upper and lower parts of the mounting base 5 is an obtuse angle. Specifically, the upper part of the mounting base 5 is vertically arranged, and the lower part of the mounting base 5 extends downward at an angle. The included angle between the upper and lower parts of the mounting base 5 is 140°. The purpose of this arrangement is to enable the laser welding gun head body 4 to automatically lift and reset itself and return the focus to the initial position by triggering the anti-collision reset seat 1 when it encounters an obstacle, thus avoiding collision damage to the laser welding gun head body 4. At the same time, the obtuse angle arrangement of the two parts of the mounting base 5 ensures that the laser welding gun head body 4 does not jam the optical cable during its full rotation.
[0036] See Figures 1-4As shown, a base plate 12 is mounted on the front of the laser welding gun head body 4. The base plate 12 is arranged vertically along the horizontal direction, and a wire guide assembly 7 for guiding the welding wire 10 outward is fixed at the upper and lower positions in front of the base plate 12. Specifically, the wire guide assembly 7 includes an upper wing plate 702 and a lower wing plate 703. The upper wing plate 702 and the lower wing plate 703 are horizontally fixed at the upper and lower positions in front of the base plate 12, respectively. An upper wire guide sleeve 701 and a lower wire guide sleeve 704 are vertically inserted and fixed at the same side end positions of the upper wing plate 702 and the lower wing plate 703, respectively. The upper wire guide sleeve 701 and the lower wire guide sleeve 704 are vertically coaxially aligned. The bottom end of the lower wire guide sleeve 704 is coaxially fixed to a wire feeding hose 2 that extends outward to the welding material supply position of the laser welding gun head. The welding wire 10 enters from the top of the upper wire guide sleeve 701 and is fed into the wire feeding hose 2 from the lower wire guide sleeve 704.
[0037] See Figures 1-4 As shown, a drive assembly 8 and a wire feeding assembly 9 are respectively installed on both sides of the front of the base plate 12. The drive assembly 8 drives the wire feeding assembly 9 to achieve active pushing and active pulling of the welding wire 10. Specifically, the drive assembly 8 includes a drive motor 801, a drive pulley 802, and a driven pulley 803. The drive motor 801 is fixedly installed on one side of the front of the base plate 12. The drive shaft 804 at the front of the drive motor 801 passes through the base plate 12 in a longitudinal sliding fit, and the drive pulley 802 is coaxially fixed at its front end. A driven shaft 806 is rotatably connected longitudinally at the front of the base plate 12 between the drive pulley 802 and the wire feeding assembly 9. The driven pulley 803 is coaxially fixed to the outside of the driven shaft 806. A transmission belt 805 is wound between the driven pulley 803 and the drive pulley 802 to achieve transmission. The wire feeding assembly 9 includes... The system includes a drive feed roller 908 and a driven feed roller 906. A slewing bearing 9011 is coaxially fixed to the inner circumference of the drive feed roller 908, and the inner ring of the slewing bearing 9011 is coaxially fixed to the outer periphery of the driven shaft 806. This allows the drive feed roller 908 to rotate along with the driven pulley 803. A support shaft 909 is longitudinally fixed to the bottom side of the base plate 12 away from the drive motor 801. The external rotation of the support shaft 909... A rotating arm 9010 is connected, and a wheel frame 905 is fixedly connected to the top of the rotating arm 9010. The wheel frame 905 is a shell structure and is open on the side and top near the active wire feeding roller 908. A driven wire feeding roller 906 is rotatably connected between the front and rear positions of the wheel frame 905 through a wheel axle 907. The welding wire 10 passes between the active wire feeding roller 908 and the driven wire feeding roller 906 and is clamped by the active wire feeding roller 908 and the driven wire feeding roller 906.
[0038] See Figures 1-6As shown, the mounting base 5, drive assembly 8 and wire feeding assembly 9 have been optimized as follows. Specifically, for the mounting base 5, a red light illuminator 6 for infrared focusing of the welding point of the laser welding gun body 4 is installed at the front corner of the lower part of the mounting base 5. Specifically, regarding the drive assembly 8 and the wire feeding assembly 9, the outer periphery of the portion of the upper wire guide sleeve 701 extending beyond the bottom surface of the upper wing plate 702 is coaxially fixed with a fixing sleeve 904, and the outer periphery of the fixing sleeve 904 is fixedly connected with a screw 902 extending outward in a transverse direction. The top side of the wheel frame 905 away from the driven wire feeding roller 906 has a mating groove 901 opened in a transverse direction, and the screw 902 passes through the mating groove 901 with a clearance fit. The portion of the screw 902 extending out of the mating groove 901 is coaxially engaged with a clamping nut handle 903, and the clamping nut handle 903 is pressed against the side surface of the wheel frame 905. This arrangement facilitates the wheel frame 905 and the rotating arm 9010 to deflect around the support shaft 909 by turning the clamping nut handle 903 along the axial direction of the screw 902. In this way, the tightness of the clamping of the welding wire 10 can be adjusted by the wheel frame 905 driving the driven wire feeding roller 906 to deflect by a certain angle.
[0039] Optionally, both the driving pulley 802 and the driven pulley 803 are toothed pulleys, and the transmission belt 805 is a toothed belt. This ensures that the driving pulley 802 drives the driven pulley 803 to rotate via the transmission belt 805, providing good and stable transmission capability and preventing slippage. The outer surfaces of the driving wire feed roller 908 and the driven wire feed roller 906 are evenly distributed with interlocking anti-slip textures. A protective cover plate 11 is fixed between the front ends of the upper wing plate 702 and the lower wing plate 703 to provide shielding and protection. This ensures that the driving wire feed roller 908 and the driven wire feed roller 906 have a certain anti-slip capability during the pushing and pulling of the welding wire 10, allowing them to perform the pushing and pulling of the welding wire 10 more stably. At the same time, the protective cover plate 11 provides shielding and protection for the drive assembly 8 and the wire feeding assembly 9. Alternatively, the front end of the mating groove 901 is open and its vertical width is greater than the diameter of the screw 902. The clamping nut handle 903 is a handle-style nut sleeve, and the internal thread of the clamping nut handle 903 is not less than the axial length of the screw 902. This configuration allows the mating groove 901 to have a design shape that meets the usage requirements, enabling the wheel frame 905 to be tightened and locked by the clamping nut handle 903 after being deflected and adjusted to a certain angle. It also allows the clamping nut handle 903 to be tightened and loosened directly by hand. More specifically, a wire-clamping copper nozzle 3 for limiting the wire 10 is fixedly connected between the bottom end of the scale tube 401 at the bottom of the laser welding gun head body 4 and the bottom end of the wire feeding hose 2. This configuration prevents wire sticking by limiting the wire 10 through the wire clamping copper nozzle 3, and also prevents the point of displacement when the laser welding gun head body 4 hits the gun.
[0040] Using the above structure, specifically in the use of the laser welding torch body 4 and the pushing and pulling of the welding wire 10, since the anti-collision reset seat 1 is fixedly connected to the mounting seat 5 via the fixing seat 101, and the mounting seat 5 is fixedly installed on the side of the laser welding torch body 4, the laser welding torch body 4 can automatically lift and reset itself and return the focus to the initial position by triggering the anti-collision reset seat 1 when it encounters an obstacle, thus avoiding collision damage to the laser welding torch body 4. Furthermore, since the two parts of the mounting seat 5 are respectively connected to the body of the laser welding torch body 4 and to the fixing seat 101 of the anti-collision reset seat 1, and the included angle between the two parts of the mounting seat 5 is 140°, ... The mounting base 5 ensures that the laser welding torch body 4 does not jam the optical cable during its full rotation. Simultaneously, a red light focusing device 6 is mounted at the lower corner of the mounting base 5 to perform infrared focusing on the welding point of the laser welding torch body 4. This device accurately locates the laser focal length, ensuring the laser welding torch body 4 can quickly and accurately position the welding point. Furthermore, a wire-locking copper nozzle 3 is fixedly connected between the bottom end of the scale tube 401 at the bottom of the laser welding torch body 4 and the bottom end of the wire feeding hose 2. This wire-locking limit mechanism prevents wire sticking and also prevents point displacement when the laser welding torch body 4 impacts the torch. Specifically regarding the welding wire… In the wire feeding process of 10, a wire guide assembly 7 is installed at the front of the base plate 12. The wire guide assembly 7 includes an upper wire guide sleeve 701 and a lower wire guide sleeve 704 at upper and lower positions, respectively. The outer end of the wire feeding hose 2 at the bottom of the lower wire guide sleeve 704 extends to the solder supply position of the laser welding gun head. In this way, by allowing the welding wire 10 to enter from the top of the upper wire guide sleeve 701 and be fed into the wire feeding hose 2 through the lower wire guide sleeve 704 and then extend to the laser welding gun head, the wire feeding process of the welding wire 10 can be guided and directed, avoiding the welding wire 10 from deviating. Since a drive assembly 8 and a wire feeding assembly 9 are respectively installed on both sides of the base plate 12, and the welding wire 10 passes through the active wire feeding roller 908 and the driven wire feeding roller of the wire feeding assembly 9, the wire feeding process is guided and directed. The wire feed rollers 906 are clamped and pressed together by the active wire feed roller 908 and the driven wire feed roller 906. This, through the rotation of the driven pulley 803 of the drive assembly 8, drives the active wire feed roller 908 of the wire feeding assembly 9 to rotate. The rotation of the active wire feed roller 908, in conjunction with the driven wire feed roller 906, enables active pushing and active pulling of the welding wire 10. This ensures a stable and non-deviation-prone supply of the welding wire 10 during laser welding, while also allowing control over the feeding and pulling lengths of the welding wire 10. Furthermore, by turning the clamping nut handle 903 along the axial direction of the screw 902, the wheel frame 905 and the rotating arm 9010 can be rotated around the support shaft 909 by a certain angle.By using the wheel frame 905 to drive the driven wire feeding roller 906 to deflect at a certain angle, the tightness of the clamping of the welding wire 10 can be adjusted. This ensures stable pushing and pulling of the welding wire 10 through the rotation of the active wire feeding roller 908, and also ensures that both the active and driven wire feeding rollers 908 and 906 can adapt to pushing welding wires 10 of different diameters, thus improving the applicability of the wire feeding assembly 9.
[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A robotic laser welding gun head, comprising a laser welding gun head body (4) and welding wire (10), characterized in that: The side of the laser welding gun body (4) is fixedly connected to an anti-collision reset seat (1) via a mounting seat (5). The mounting seat (5) has two parts, an upper part and an lower part. The upper and lower parts of the mounting seat (5) are respectively connected to the body of the laser welding gun body (4) and to the fixed seat (101) of the anti-collision reset seat (1). The included angle between the upper and lower parts of the mounting seat (5) is an obtuse angle, so that when the laser welding gun body (4) encounters an obstacle, it can automatically lift and reset the gun by triggering the anti-collision reset seat (1). The laser welding gun head body (4) is equipped with a base plate (12) at the front. The base plate (12) is arranged to unfold vertically in the horizontal direction. A wire guide assembly (7) is fixed at the upper and lower positions in front of the base plate (12) to guide the welding wire (10) to be conveyed outward. The base plate (12) is equipped with a drive assembly (8) and a wire feeding assembly (9) on both sides of the front part, so as to realize the active push-type wire feeding and active pull-back-type wire drawing of the welding wire (10) by driving the wire feeding assembly (9) through the drive assembly (8).
2. The robotic laser welding gun head according to claim 1, characterized in that: The upper part of the mounting base (5) is vertically arranged, and the lower part of the mounting base (5) extends downward at an angle, and the included angle between the upper and lower parts of the mounting base (5) is 140°.
3. The robotic laser welding gun head according to claim 2, characterized in that: The lower part of the mounting base (5) is equipped with a red light focusing device (6) for infrared focusing of the welding point of the laser welding gun body (4).
4. A robotic laser welding gun head according to claim 1, 2, or 3, characterized in that: The wire guide assembly (7) includes an upper wing plate (702) and a lower wing plate (703). The upper wing plate (702) and the lower wing plate (703) are horizontally extended and fixed at the upper and lower positions in front of the base plate (12), respectively. An upper wire guide sleeve (701) and a lower wire guide sleeve (704) are vertically inserted and fixed at the same side end positions of the upper wing plate (702) and the lower wire guide sleeve (704). The upper wire guide sleeve (701) and the lower wire guide sleeve (704) are vertically coaxially aligned. The bottom end of the lower wire guide sleeve (704) is coaxially fixed to a wire feeding hose (2) that extends outward to the solder supply position of the laser welding gun head. The welding wire (10) enters from the top of the upper wire guide sleeve (701) and is fed into the wire feeding hose (2) from the lower wire guide sleeve (704).
5. The robotic laser welding gun head according to claim 4, characterized in that: The drive assembly (8) includes a drive motor (801), a drive pulley (802), and a driven pulley (803). The drive motor (801) is fixedly installed on the front side of the base plate (12). The drive shaft (804) at the front of the drive motor (801) passes through the base plate (12) in a longitudinal sliding fit and the drive pulley (802) is coaxially fixed at its front end. A driven shaft (806) is rotatably connected in the longitudinal direction at the position between the drive pulley (802) and the wire feeding assembly (9) at the front of the base plate (12). The driven pulley (803) is coaxially fixed to the outside of the driven shaft (806). At the same time, a transmission belt (805) for transmission is wound between the outer periphery of the driven pulley (803) and the drive pulley (802).
6. The robotic laser welding gun head according to claim 5, characterized in that: The wire feeding assembly (9) includes an active wire feeding roller (908) and a driven wire feeding roller (906). A slewing bearing (9011) is coaxially fixed to the inner circumference of the active wire feeding roller (908), and the inner ring of the slewing bearing (9011) is coaxially fixed to the periphery of the driven shaft (806) to drive the active wire feeding roller (908) to rotate together via the driven pulley (803). A support shaft (909) is longitudinally fixed to the bottom side of the base plate (12) away from the drive motor (801). The outer side of the support shaft (909)... A rotating arm (9010) is rotatably connected, and a wheel frame (905) is fixedly connected to the top of the rotating arm (9010). The wheel frame (905) is a shell structure and is open on the side and top near the active wire feeding roller (908). The driven wire feeding roller (906) is rotatably connected between the front and rear positions of the wheel frame (905) through a wheel axle (907). The welding wire (10) passes between the active wire feeding roller (908) and the driven wire feeding roller (906) and is clamped by the active wire feeding roller (908) and the driven wire feeding roller (906).
7. The robotic laser welding gun head according to claim 6, characterized in that: The upper guide sleeve (701) extending out of the bottom surface of the upper wing plate (702) is coaxially fixed with a fixing sleeve (904), and the outer periphery of the fixing sleeve (904) is fixedly connected with a screw (902) extending outward in a transverse direction. The top side of the wheel frame (905) away from the driven wire feeding roller (906) is provided with a mating groove (901) in a transverse direction, and the screw (902) passes through the mating groove (901) in a clearance fit. The part of the screw (902) extending out of the mating groove (901) is coaxially engaged with a clamping nut handle (903), and the clamping nut handle (903) is pressed against the side surface of the wheel frame (905).
8. The robotic laser welding gun head according to claim 6, characterized in that: Both the driving pulley (802) and the driven pulley (803) are toothed pulleys, and the transmission belt (805) is a toothed belt; the outer surfaces of the driving wire feeding roller (908) and the driven wire feeding roller (906) are evenly distributed with interlocking anti-slip textures, and a protective cover plate (11) is fixed between the front ends of the upper wing plate (702) and the lower wing plate (703) to provide a shielding and protection function.
9. The robotic laser welding gun head according to claim 7, characterized in that: The front end of the mating groove (901) is open and its vertical width is greater than the diameter of the screw (902). The clamping nut handle (903) is a handle-style nut sleeve, and the internal thread of the clamping nut handle (903) is not less than the axial length of the screw (902).
10. A robotic laser welding gun head according to any one of claims 5-9, characterized in that: A wire-clamping copper nozzle (3) for limiting the wire clamping of the welding wire (10) is fixedly connected between the bottom end of the scale tube (401) at the bottom of the laser welding gun head body (4) and the bottom end of the wire feeding hose (2).