阅读说明：本技术 手持式增材修复激光送丝头 (Handheld material increase repair laser wire feeding head ) 是由 王梁 陈思远 姚建华 李波 于 2020-12-28 设计创作，主要内容包括：手持式增材修复激光送丝头,包括送丝机和手持激光器,送丝机通过送丝软管连接有送丝头,送丝头上设有用于对送丝头进行振幅和频率调节的振动装置；送丝机中的焊丝通过送丝头输入至待修复工件上,振动装置连接于送丝头上,对送丝头进行振动,以丝为传导,加速熔池搅拌,利于晶粒细化和缺陷排出。本发明能通过调节偏心距来改变振幅,马达转速来调节频率,可靠有效；装置简单,组装加工较易,仅需对原有送丝头进行另附加装置,无需采购额外设备；采用振动的方式加速熔池搅动、利于晶粒细化和缺陷的排出,对手持激光设备及送丝设备是很好的改进,简单却效果明显。(The handheld material-increasing repairing laser wire feeding head comprises a wire feeding machine and a handheld laser, wherein the wire feeding machine is connected with the wire feeding head through a wire feeding hose, and a vibration device for adjusting the amplitude and the frequency of the wire feeding head is arranged on the wire feeding head; the welding wire in the wire feeder is input to a workpiece to be repaired through the wire feeding head, the vibrating device is connected to the wire feeding head to vibrate the wire feeding head, the wire is used as conduction, molten pool stirring is accelerated, and grain refinement and defect discharge are facilitated. The invention can change the amplitude by adjusting the eccentricity and adjust the frequency by the rotating speed of the motor, thus being reliable and effective; the device is simple, the assembly and the processing are easy, only another additional device is needed to be added to the original wire feeding head, and no additional equipment is needed to be purchased; the method accelerates the stirring of the molten pool by adopting a vibration mode, is beneficial to grain refinement and defect discharge, is a good improvement on the hand-held laser equipment and the wire feeding equipment, and has obvious effects of simplicity.)

1. Hand-held type vibration material disk restores laser and send silk head, including sending silk machine (1) and handheld laser instrument (2), send silk machine (1) to have through sending a hose connection to send silk head (3), its characterized in that: the wire feeding head (3) is provided with a vibration device (4) for adjusting the amplitude and the frequency of the wire feeding head (3);

the upper end of the wire feeding head (3) is provided with a first hinge seat, the first hinge seat is hinged with a second hinge seat (12) through a second screw (18), and the second screw (18) is positioned in the front-back direction; a first screw hole which penetrates horizontally is formed in the top of the second hinge seat, and a first screw (15) penetrates through the first screw hole;

the vibrating device (4) comprises a box body (7), and a handle (11) convenient to hold is arranged on the outer wall of the left side of the box body (7); the upper right part in the box body (7) is provided with a speed-adjustable motor (6), and the output shaft of the speed-adjustable motor (6) is horizontally arranged leftwards; a first thin disc (8) is arranged on an output shaft of the speed-adjustable motor (6), and a second thin disc (9) is coaxially connected to the left side of the first thin disc (8); a connecting rod (10) is hinged to the eccentric position of the left side surface of the second thin disc (9), the connecting rod (10) is vertically arranged downwards, and the lower end of the connecting rod (10) is rotatably arranged on a first screw (15) arranged along the horizontal direction; the left side and the right side of the lower end of the connecting rod (10) are respectively provided with a second nut (17) and a third nut (16), and the second nut (17) and the third nut (16) are arranged on the first screw (15), so that the connecting rod (10) can rotate relative to the first screw (15) but cannot axially move;

a vertical rectangular opening is formed in the position, corresponding to the first screw (15), of the left side wall of the box body (7), and a sliding block (13) is connected in the rectangular opening in a sliding mode; the sliding block (13) is of a cuboid structure, sliding grooves extending in the vertical direction are symmetrically formed in the front surface and the rear surface of the sliding block (13), the width of each sliding groove is matched with the wall thickness of the box body (7), the sliding block (13) is clamped in the rectangular opening in a sliding mode through the sliding grooves, and the sliding block (13) can move up and down along the front wall surface and the rear wall surface of the rectangular opening; the left surface and the right surface of the sliding block (13) are provided with second screw holes which penetrate horizontally, and the sliding block (13) is fixedly installed on the first screw (15) through the second screw holes.

2. The hand-held additive repair laser feed head of claim 1, wherein: the left side surface of the first thin disc (8) is connected with a second thin disc (9) through two short rods, and the axial leads of the first thin disc (8) and the second thin disc (9) are collinear.

Technical Field

The invention relates to a handheld additive repair laser wire feeding head.

Background

Laser cladding is an advanced surface modification technology and is matched with an automatic control system, and is commonly applied to the industries of electronics, automobiles and the like. Few available handheld lasers in the market are few in common application, poor in operation and poor in cladding quality; secondly, the existing handheld laser equipment is rarely combined with wire feeding equipment to form a system so as to meet the requirements of repairing different surfaces.

Disclosure of Invention

In order to overcome the problems, the invention provides a handheld additive repair laser filament feeding head.

The technical scheme adopted by the invention is as follows: the laser wire feeding head for the handheld material additive repair comprises a wire feeding machine (1) and a handheld laser (2), wherein the wire feeding machine (1) is connected with a wire feeding head (3) through a wire feeding hose, and a vibration device (4) for adjusting the amplitude and the frequency of the wire feeding head (3) is arranged on the wire feeding head (3);

the upper end of the wire feeding head (3) is provided with a first hinge seat, the first hinge seat is hinged with a second hinge seat (12) through a second screw (18), and the second screw (18) is positioned in the front-back direction; a first screw hole which penetrates horizontally is formed in the top of the second hinge seat, and a first screw (15) penetrates through the first screw hole;

the vibrating device (4) comprises a box body (7), and a handle (11) convenient to hold is arranged on the outer wall of the left side of the box body (7); the upper right part in the box body (7) is provided with a speed-adjustable motor (6), and the output shaft of the speed-adjustable motor (6) is horizontally arranged leftwards; a first thin disc (8) is arranged on an output shaft of the speed-adjustable motor (6), and a second thin disc (9) is coaxially connected to the left side of the first thin disc (8); a connecting rod (10) is hinged to the eccentric position of the left side surface of the second thin disc (9), the connecting rod (10) is vertically arranged downwards, and the lower end of the connecting rod (10) is rotatably arranged on a first screw (15) arranged along the horizontal direction; the left side and the right side of the lower end of the connecting rod (10) are respectively provided with a second nut (17) and a third nut (16), and the second nut (17) and the third nut (16) are arranged on the first screw (15), so that the connecting rod (10) can rotate relative to the first screw (15) but cannot axially move;

a vertical rectangular opening is formed in the position, corresponding to the first screw (15), of the left side wall of the box body (7), and a sliding block (13) is connected in the rectangular opening in a sliding mode; the sliding block (13) is of a cuboid structure, sliding grooves extending in the vertical direction are symmetrically formed in the front surface and the rear surface of the sliding block (13), the width of each sliding groove is matched with the wall thickness of the box body (7), the sliding block (13) is clamped in the rectangular opening in a sliding mode through the sliding grooves, and the sliding block (13) can move up and down along the front wall surface and the rear wall surface of the rectangular opening; the left surface and the right surface of the sliding block (13) are provided with second screw holes which penetrate horizontally, and the sliding block (13) is fixedly installed on the first screw (15) through the second screw holes.

Furthermore, the left side surface of the first thin disk (8) is connected with a second thin disk (9) through two short rods, and the axial leads of the first thin disk (8) and the second thin disk (9) are collinear. The invention has the beneficial effects that:

the invention can change the amplitude by adjusting the eccentricity and adjust the frequency by the rotating speed of the motor, and is reliable and effective;

2, the vibration device adopted by the invention is simple, the assembly and the processing are easy, only another additional device is needed to be added to the original wire feeding head, and no additional equipment is needed to be purchased;

3 the invention adopts a vibration mode to accelerate the stirring of the molten pool, is beneficial to the refinement of crystal grains and the discharge of defects, is a good improvement on the hand-held laser equipment and the wire feeding equipment, and has obvious effects while being simple.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a sectional view of the vibration device.

Fig. 3 is an internal schematic view of the vibration device.

Fig. 4 is a schematic structural view of a slider.

FIG. 5 is a schematic view of the structure of the slider and the rectangular opening of the case.

Description of the figures reference signs: 1. a wire feeder; 2. a hand-held laser; 3. feeding a filament head; 4. a vibrating device; 5. a workpiece to be repaired; 6. a speed adjustable motor; 7. a box body; 8. a first thin disc; 9. a second thin disc; 10. a connecting rod; 11. a handle; 12. a second hinge mount; 13. a slider; 14. a first bolt; 15. a first screw; 16. a third nut; 17. a second nut; 18. a second screw; 19. a first nut.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to the attached drawings, the handheld additive repair laser wire feeding head comprises a wire feeding machine 1 and a handheld laser 2, wherein the wire feeding machine 1 is connected with a wire feeding head 3 through a wire feeding hose, a vibrating device 4 for adjusting the amplitude and frequency of the wire feeding head 3 is arranged on the wire feeding head 3, and a welding wire in the wire feeding machine 3 is input to a workpiece 5 to be repaired through the wire feeding head;

the upper end of the wire feeding head 3 is provided with a first hinge seat, and the first hinge seat is provided with a first pivot hole; a second hinge seat 12 is hinged on the first hinge seat, a second pivot hole is arranged on the second hinge seat 12, a second screw 18 penetrates through the first pivot hole and the second pivot hole, a first nut 19 is installed at the tail end of the second screw 18, the second hinge seat 12 and the first hinge seat are hinged together through the second screw 18, and the axis of the second screw 18 is located in the front-back direction; a first screw hole penetrating along the horizontal direction is formed in the top of the second hinge base 12, and a first screw 15 penetrates through the first screw hole;

the vibrating device 4 comprises a box body 7, the length direction of the box body 7 is taken as the horizontal direction, the width direction of the box body 7 is taken as the front-back direction, and the height direction of the box body 7 is taken as the vertical direction;

a handle 11 convenient to hold is arranged on the outer wall of the left side of the box body 7, and the whole vibrating device is controlled by holding the handle 11; the upper right part in the box body 7 is provided with a speed-adjustable motor 6, and the output shaft of the speed-adjustable motor 6 is horizontally arranged leftwards; a first thin disk 8 is installed on an output shaft of the speed-adjustable motor 6, the left side surface of the first thin disk 8 is connected with a second thin disk 9 through two short rods, and the axial leads of the first thin disk 8 and the second thin disk 9 are collinear. A connecting rod 10 is hinged to the eccentric position of the left side surface of the second thin disc 9, the connecting rod 10 is vertically arranged downwards, and the connecting rod 10 is hinged to the second thin disc 9 through a first bolt 14; the lower end of the connecting rod 10 is rotatably installed on a first screw 15 arranged along the horizontal direction; a second nut 17 and a third nut 16 are respectively arranged at the left side and the right side of the lower end of the connecting rod 10, and the second nut 17 and the third nut 16 are arranged on the first screw 15, so that the connecting rod 10 can rotate relative to the first screw 15 but cannot axially move;

a vertical rectangular opening is formed in the left side wall of the box body 7 corresponding to the first screw 15, and a sliding block 13 is connected in the rectangular opening in a sliding mode; the sliding block 13 is of a cuboid structure, sliding grooves extending in the vertical direction are symmetrically formed in the front surface and the rear surface of the sliding block 13, the width of each sliding groove is matched with the wall thickness of the box body (7), the sliding block 13 is connected in the rectangular opening in a sliding and clamping mode through the sliding grooves, and the sliding block 13 can move up and down along the front wall surface and the rear wall surface of the rectangular opening; the left surface and the right surface of the sliding block 13 are provided with second screw holes which penetrate horizontally, and the sliding block 13 is fixedly arranged on the first screw 15 through the second screw holes.

The using method comprises the following steps:

(1) carrying out primary treatment of polishing, cleaning and drying on a workpiece 5 to be repaired, then installing the workpiece 5 to be repaired on a workbench, and debugging and installing a handheld laser 2, a wire feeder 1, a wire feeding head 3 and a vibration device 4;

(2) the handheld laser 2 is placed above a workpiece 5 to be repaired, the wire feeding head 3 and the vibrating device 4 are fixed together, and the axial included angle between the filler wire and the laser beam is 30-70 degrees.

(3) And starting the handheld laser 2, moving the handheld vibration device 4, simultaneously starting the wire feeder 1 and the vibration device 4 to feed welding wires into the laser spot area, and stopping the handheld laser 2, the wire feeder 1 and the vibration device 4 to finish the repair process.

Wherein the wire feeding moving speed is 1 mm/s-3 mm/s consistent with the handheld laser scanning speed, and the laser power is selected to be 1000 w-1200 w. The pulse form is adopted, the pulse width is 20ns, and the pulse wavelength is 1070 +/-10 nm.

The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but rather by the equivalents thereof as may occur to those skilled in the art upon consideration of the present inventive concept.