An air-cooled laser handheld welder

Abstract

The present invention belongs to the technical field of welding equipment, and more specifically, is an air-cooled handheld laser welder, comprising a main housing, a control panel provided on the front of the main housing, an auxiliary housing provided at the bottom of the main housing, movable rollers symmetrically provided at the bottom of the auxiliary housing, and working parts provided on the sides of the auxiliary housing; the working parts include a pistol-type grip, a transition connector fixedly connected to the bottom of the pistol-type grip. When a novice operator uses the pistol-type grip of the device for laser welding, they can first adjust the sleeve housing and the auxiliary rods on both sides of the interior to ensure that the welding end always maintains a fixed distance from the welding surface, and utilize the characteristic that the guide wheel can only roll in a certain direction to guide the operator to perform relatively smooth mobile welding work, thereby avoiding problems such as insufficient welding precision caused by the operator's hand shaking and unskilled operation.

Description

Technical Field

[0001] The invention belongs to the technical field of welding equipment, in particular to an air-cooled laser handheld welder. Background Art

[0002] Laser welding is a welding method that uses a focused laser beam as energy to bombard the workpiece with heat generated by the welding. Due to the optical properties of laser such as refraction and focusing, laser welding is very suitable for welding micro parts and poorly positioned parts. The worker turns on the equipment and operates the welding gun installed on the laser welding machine to weld the material. Traditional equipment can easily cause the worker to drop the welding gun in the event of an accident when performing laser welding, thus affecting the worker's safety. A portable, small, air-cooled handheld laser welding machine can bring safety to the worker.

[0003] When using this equipment for welding, the welding gun head needs to be removed from the chassis shell and then hand-held welding is performed. Therefore, flashing sparks are likely to appear at the end of the gun body, thereby affecting the operator's field of vision. In addition, the hand-held welding gun head requires a high level of operator proficiency during movement, otherwise the welding gun will be difficult to move stably, so improvements are needed. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention solves the technical problems thereof by adopting the following technical solutions: an air-cooled laser handheld welder, comprising a main box body, a control panel provided on the front of the main box body, an auxiliary box shell provided at the lower portion of the main box body, movable rollers symmetrically provided at the bottom of the auxiliary box shell, and working components provided on the side of the auxiliary box shell; the working components comprising a pistol-type grip, a transfer connector fixedly connected to the bottom of the pistol-type grip, an extension wire fixedly connected to the axis of the inner cavity of the transfer connector, a modified reel provided at the end of the extension wire away from the transfer connector, and a welding component provided at the front end of the pistol-type grip;

[0005] The welding component includes a protective shell, the front end of the protective shell is fixedly connected to the welding end, the outer surface of the protective shell is rotatably connected to the sleeve shell, the middle part of the inner wall of the sleeve shell is fixedly connected to the extraction inner ring, and auxiliary rods are symmetrically arranged on both sides of the inner wall of the sleeve shell. The end of the protective shell away from the welding end is fixedly connected to a scale nut. By rotating the scale nut, the actual deflection angle of the welding end can be changed, so that the auxiliary rods symmetrical on both sides can change the actual inclination angle.

[0006] Furthermore, the auxiliary rod body includes a hollow straight rod, the left end of the hollow straight rod is fixedly connected to a bent connecting rod, and the end of the bent connecting rod away from the hollow straight rod is rotatably connected to a guide wheel through a connecting shaft. Each guide wheel is composed of two wheel bodies spliced ​​together, so the guide wheel can only rotate along the vertical direction of the wheel body bearing, and the right end of the hollow straight rod is slidably connected to a threaded sleeve, and the inner wall of the threaded sleeve is threadedly connected to a twist push rod at one end away from the hollow straight rod. By rotating the twist push rod clockwise, the hollow straight rod and the bent connecting rod can be pushed out from the inside of the sleeve shell, so that the guide wheels on both sides can fit the surface of the welding object for guided sliding movement.

[0007] Furthermore, the number of the auxiliary rod bodies is two, and an isolation compression sleeve is sleeved on the side of the outer surface of the hollow straight rod near the bending connecting rod. The outer surface of the isolation compression sleeve is slidably connected to the inner wall of the sleeve shell, and the bending connecting rod extends to the outside of the sleeve shell through a through-hole. The inner cavity of the bending connecting rod is evenly provided with air intake grooves on the side near the welding end, and the middle part of the inner cavity of the hollow straight rod is evenly provided with exhaust ports. The bottom end of the threaded sleeve is fixedly connected to the outer surface of the sleeve shell, and the bottom end of the twist push rod is rotatably connected to the top end of the hollow straight rod. The inner wall of the scale nut is rotatably connected to the front end of the gun grip, and the axis of the inner wall of the sleeve shell is rotatably connected to the outer surface of the protective shell through a circular groove.

[0008] Furthermore, the modified reel includes an axis-centered turntable, with fixed side shells rotatably connected to the front and rear sides of the outer surface of the axis-centered turntable, a cleaning component fixedly connected to the middle of the inner wall of the fixed side shell, a rebound rotary rod fixedly connected to the axis of the inner cavity of the fixed side shell, and embedded rotating rods uniformly arranged on the outer surface of the rebound rotary rod. The cleaning component includes a fitted inner shell, hollow soft pads uniformly arranged at the axis of the inner wall of the fitted inner shell, an elastic washer sleeved on the side of the inner cavity of the fitted inner shell away from the hollow soft pad, the outer surface of the elastic washer uniformly arranged with extended outer plates, and the outer surface of the extended outer plates uniformly arranged with friction brushes.

[0009] Furthermore, the end of the hollow cushion, away from the elastic washer, is pressed against the outer surface of the embedded rotating rod via an insertion port. The inner cavity of the hollow cushion, away from the embedded rotating rod, communicates with the inner cavity of the fitted inner shell via a docking port. The outer surface of the extended outer plate extends to the exterior of the fitted inner shell. The outer surface of the fixed side shell is fixedly connected to the outer surface of the main housing. One end of the extension wire extends through a through-hole to the exterior of the axis rotating disk, and the other end of the extension wire extends into the interior of the main housing. The outer surface of the friction brush and the outer surface of the extension wire are pressed against each other.

[0010] The beneficial effects of the present invention are as follows:

[0011] 1. When a novice operator uses the gun-type grip of the device for laser welding, he or she can first adjust the sleeve shell and the auxiliary rods on both sides of the interior to ensure that the welding end always maintains a fixed distance from the welding surface. The guide wheel can only roll in a certain direction to guide the operator to perform relatively smooth mobile welding work, avoiding problems such as insufficient welding precision caused by hand tremors and unskilled operation.

[0012] 2. When the welding end is working, it is always located between the air inlet grooves on both sides, so the extraction inner ring can absorb the fume generated by welding into the inside of the sleeve shell through the air inlet groove. Therefore, when using this device for welding, it can achieve the effect of reducing pollution, thereby preventing the operator from inhaling more toxic gas and affecting the health of the operator.

[0013] 3. The extension wire connected to the bottom of the pistol grip is usually stored inside the modified reel to provide some protection. When the pistol grip is used for mobile welding, the extension wire inside the modified reel will cooperate with the operator to pay out and reel in the wire, thereby preventing the extension wire from becoming too loose, causing the outer surface of the extension wire to come into contact with the ground and wear as the pistol grip moves.

[0014] 4. When the extended wire of the device is rolled up into the inner part of the axis turntable for storage, it will come into contact with the friction brush that fits the outer surface of the inner shell, thereby cleaning away dust and impurities attached to the outer surface, maintaining the cleanliness of the wire, and reducing the probability of wire corrosion. When the axis turntable rotates, the squeezing force of the friction brush on the wire is constantly changing, thereby avoiding the problem of the wire being continuously subjected to large friction and prone to wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the present invention;

[0016] Figure 2 It is a front view of the working part of the present invention;

[0017] Figure 3 is a cross-sectional view of the working component of the present invention;

[0018] Figure 4 is a cross-sectional view of a welded component of the present invention;

[0019] Figure 5 It is a structural schematic diagram of the auxiliary rod body of the present invention;

[0020] Figure 6 is a cross-sectional view of the modified reel of the present invention;

[0021] Figure 7 is a cross-sectional view of the cleaning component of the present invention;

[0022] Figure 8 It is a structural schematic diagram of the elastic washer of the present invention.

[0023] Figure: 1, main box; 2, control panel; 3, auxiliary box shell; 4, moving roller; 5, working part; 51, pistol grip; 52, adapter; 53, extension wire; 6, welding part; 61, protective shell; 62, welding end; 63, scale nut; 64, sleeve shell; 65, extract inner ring; 66, auxiliary rod; 661, hollow straight rod; 662, intake slot; 663, bend Folding connecting rod; 664, guide wheel; 665, isolation compression sleeve; 666, threaded sleeve; 667, knob push rod; 7, modified reel; 71, axis turntable; 72, cleaning component; 73, rebound turn rod; 74, embedded turn rod; 75, fixed side shell; 721, fitting inner shell; 722, hollow soft cushion; 723, docking port; 724, elastic washer; 725, extended outer plate; 726, friction brush. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0025] Example 1, please refer to Figure 1-Figure 5 The present invention provides a technical solution: an air-cooled laser handheld welding machine, comprising a main box body 1, a control panel 2 is provided on the front of the main box body 1, an auxiliary box shell 3 is provided at the lower part of the main box body 1, movable rollers 4 are symmetrically provided at the bottom of the auxiliary box shell 3, and a working component 5 is provided on the side of the auxiliary box shell 3; the working component 5 includes a gun-type grip 51, a transfer connector 52 is fixedly connected to the bottom of the gun-type grip 51, an extension wire 53 is fixedly connected to the axis of the inner cavity of the transfer connector 52, a modified reel 7 is provided at the end of the extension wire 53 away from the transfer connector 52, and a welding component 6 is provided at the front end of the gun-type grip 51;

[0026] The welding component 6 includes a protective shell 61, the front end of the protective shell 61 is fixedly connected to the welding end 62, the outer surface of the protective shell 61 is rotatably connected to the sleeve shell 64, the middle part of the inner wall of the sleeve shell 64 is fixedly connected to the extraction inner ring 65, and auxiliary rods 66 are symmetrically arranged on both sides of the inner wall of the sleeve shell 64. The end of the protective shell 61 away from the welding end 62 is fixedly connected to the scale nut 63. By rotating the scale nut 63, the actual deflection angle of the welding end 62 can be changed, so that the auxiliary rods 66 symmetrical on both sides can change the actual inclination angle.

[0027] The auxiliary rod body 66 includes a hollow straight rod 661, and the left end of the hollow straight rod 661 is fixedly connected to a bent connecting rod 663. The end of the bent connecting rod 663 away from the hollow straight rod 661 is rotatably connected to a guide wheel 664 through a connecting shaft. Each guide wheel 664 is composed of two wheel bodies, so the guide wheel 664 can only rotate along the vertical direction of the wheel bearing. The right end of the hollow straight rod 661 is slidably connected to a threaded sleeve 666, and the inner wall of the threaded sleeve 666 is threadedly connected to a twist push rod 667 at one end away from the hollow straight rod 661. By rotating the twist push rod 667 clockwise, the hollow straight rod 661 and the bent connecting rod 663 can be pushed out from the inside of the sleeve shell 64, so that the guide wheels 664 on both sides can fit the surface of the welding object for guided sliding movement.

[0028] There are two auxiliary rods 66. An isolation compression sleeve 665 is sleeved onto the outer surface of the hollow straight rod 661 near the bent connecting rod 663. The outer surface of the isolation compression sleeve 665 is slidably connected to the inner wall of the sleeve housing 64, and the bent connecting rod 663 extends to the exterior of the sleeve housing 64 through a through-hole. Air intake slots 662 are uniformly cut into the inner cavity of the bent connecting rod 663 near the welding end 62. Exhaust ports are uniformly cut into the middle of the inner cavity of the hollow straight rod 661. The bottom end of the threaded sleeve 666 is fixedly connected to the outer surface of the sleeve housing 64, and the bottom end of the twist push rod 667 is rotatably connected to the top end of the hollow straight rod 661. The inner wall of the scale nut 63 is rotatably connected to the front end of the pistol grip 51. The inner wall of the sleeve housing 64 is rotatably connected to the outer surface of the protective housing 61 via a circular groove at the axis of the inner wall.

[0029] When using the device for welding, remove the gun-type grip 51 from the hook on the side of the main box 1, hold the handle tightly with one hand so that the welding part 6 can be obliquely aligned with the part that needs horizontal welding, and then use the other hand to adjust the work.

[0030] Since the welding end 62 is obliquely aligned with the welding point at this time, in order to ensure that the welding end 62 can maintain a certain distance from the welding point, the external sleeve shell 64 is first rotated to make the predetermined sliding trajectory of the guide wheel 664 parallel to the sliding trajectory of the welding end 62 during welding. Then, the knob push rods 667 on both sides are turned clockwise to push the bent connecting rod 663 out from the inside of the sleeve shell 64. At this time, the actual length of the auxiliary rod bodies 66 on both sides is extended, thereby pushing the welding end 62 away from the contact surface to avoid direct contact between the welding end 62 and the welding surface.

[0031] After the auxiliary rods 66 on both sides raise the welding end 62, the user moves the gun-type grip 51 to slide in a directional manner under the guidance of the guide wheel 664, and controls the welding end 62 to use high-temperature laser to perform welding work on the welding point by pressing the trigger.

[0032] When the hollow straight rod 661 is pushed forward, the isolation compression sleeve 665 always separates the position of the air intake groove 662 and the position of the exhaust port of the hollow straight rod 661, and the welding end 62 is always located between the air intake grooves 662 on both sides when working, so the extraction inner ring 65 can absorb the smoke generated by welding into the interior of the socket shell 64 through the air intake groove 662, thereby achieving the effect of reducing pollution.

[0033] Example 2, please refer to Figures 1-8 The present invention provides a technical solution: based on the first embodiment, the modified reel 7 includes an axis turntable 71, with fixed side shells 75 rotatably connected to the front and rear sides of the outer surface of the axis turntable 71, a cleaning component 72 fixedly connected to the middle of the inner wall of the fixed side shell 75, a rebound rotary rod 73 fixedly connected to the axis of the inner cavity of the fixed side shell 75, and embedded rotary rods 74 evenly arranged on the outer surface of the rebound rotary rod 73. The cleaning component 72 includes a fitting inner shell 721, hollow soft pads 722 evenly arranged at the axis of the inner wall of the fitting inner shell 721, an elastic washer 724 sleeved on the side of the inner cavity of the fitting inner shell 721 away from the hollow soft pad 722, an extended outer plate 725 evenly arranged on the outer surface of the elastic washer 724, and a friction brush 726 evenly arranged on the outer surface of the extended outer plate 725.

[0034] The end of the hollow cushion 722, away from the elastic washer 724, is pressed against the outer surface of the embedded rotating rod 74 via the insertion port. The inner cavity of the hollow cushion 722, away from the embedded rotating rod 74, communicates with the inner cavity of the fitted inner shell 721 via the docking port 723. The outer surface of the extended outer plate 725 extends to the exterior of the fitted inner shell 721. The outer surface of the fixed side shell 75 is fixedly connected to the outer surface of the main housing 1. One end of the extension wire 53 extends through the through hole to the exterior of the axis rotating disk 71, and the other end of the extension wire 53 extends into the interior of the main housing 1. The outer surface of the friction brush 726 is pressed against the outer surface of the extension wire 53.

[0035] When taking the gun-type grip 51, the extension wire 53 wound inside the modified reel 7 will be gradually pulled out. At this time, the extension wire 53 will drive the axial turntable 71 to rotate around the fixed side shells 75 on both sides. Since the rebound rotary rod 73 in the center is fixed on the fixed side shell 75, when the axial turntable 71 rotates relative to the fixed side shell 75, the rebound rotary rod 73 in the middle will accumulate rotational potential energy, so that after the user releases the gun-type grip 51, it can automatically release the rotational elastic potential energy to re-store the extension wire 53 into the interior of the modified reel 7.

[0036] When the axial turntable 71 rotates, it will drive the fitting inner shell 721 to rotate synchronously. At this time, the axial center of the fitting inner shell 721 will rotate relative to the rebound rotary rod 73, so that the embedded rotary rod 74 periodically presses the hollow soft pad 722, so that the hollow soft pad 722 presses the inner cavity of the fitting inner shell 721. At this time, the elastic gasket 724 will further expand, and further squeeze the extended outer plate 725 toward the direction of the coil of the extended wire 53, and indirectly brush the outer surface of the extended wire 53 through the friction brush 726 to remove impurities on the outer surface of the extended wire 53.

[0037] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. An air-cooled laser handheld welding machine, comprising a main box (1), a control panel (2) provided on the front of the main box (1), an auxiliary box shell (3) provided at the lower part of the main box (1), movable rollers (4) symmetrically provided at the bottom of the auxiliary box shell (3), and a working component (5) provided on the side of the auxiliary box shell (3), characterized in that: The working part (5) includes a gun-type grip (51), a transition connector (52) is fixedly connected to the bottom of the gun-type grip (51), an extension wire (53) is fixedly connected to the axis of the inner cavity of the transition connector (52), a modified reel (7) is provided at one end of the extension wire (53) away from the transition connector (52), and a welding part (6) is provided at the front end of the gun-type grip (51); The welding component (6) includes a protective shell (61), a front end of the protective shell (61) is fixedly connected to a welding end (62), an outer surface of the protective shell (61) is rotatably connected to a sleeve shell (64), a middle portion of an inner wall of the sleeve shell (64) is fixedly connected to an extraction inner ring (65), auxiliary rods (66) are symmetrically provided on both sides of the inner wall of the sleeve shell (64), and a scale nut (63) is fixedly connected to one end of the protective shell (61) away from the welding end (62); The modified reel (7) includes an axis turntable (71), the front and rear sides of the outer surface of the axis turntable (71) are rotatably connected to fixed side shells (75), the middle part of the inner wall of the fixed side shell (75) is fixedly connected to a cleaning component (72), the axis of the inner cavity of the fixed side shell (75) is fixedly connected to a rebound rotary rod (73), and the outer surface of the rebound rotary rod (73) is evenly provided with embedded rotating rods (74); The cleaning component (72) comprises a fitted inner shell (721), a hollow soft pad (722) is evenly arranged at the axis of the inner wall of the fitted inner shell (721), an elastic washer (724) is sleeved on the side of the inner cavity of the fitted inner shell (721) away from the hollow soft pad (722), an extended outer plate (725) is evenly arranged on the outer surface of the elastic washer (724), and a friction brush (726) is evenly arranged on the outer surface of the extended outer plate (725); One end of the hollow cushion (722) away from the elastic washer (724) is pressed against the outer surface of the embedded rotating rod (74) through the insertion interface, and the inner cavity of the hollow cushion (722) away from the embedded rotating rod (74) is connected to the inner cavity of the fitting inner shell (721) through the docking interface (723), and the outer surface of the extended outer plate (725) extends to the outside of the fitting inner shell (721); The outer surface of the fixed side shell (75) is fixedly connected to the outer surface of the main box (1), one end of the extension wire (53) extends to the outside of the axis turntable (71) through the through opening, and the other end of the extension wire (53) extends to the inside of the main box (1), and the outer surface of the friction brush (726) and the outer surface of the extension wire (53) are pressed against each other.

2. The air-cooled laser handheld welder according to claim 1, characterized in that: The auxiliary rod body (66) comprises a hollow straight rod (661), the left end of the hollow straight rod (661) is fixedly connected to a bent connecting rod (663), the end of the bent connecting rod (663) away from the hollow straight rod (661) is rotatably connected to a guide wheel (664) via a connecting shaft, the right end of the hollow straight rod (661) is slidably connected to a threaded sleeve (666), and the end of the inner wall of the threaded sleeve (666) away from the hollow straight rod (661) is threadedly connected to a twist push rod (667).

3. The air-cooled laser handheld welder according to claim 2, characterized in that: There are two auxiliary rod bodies (66), and an isolation compression sleeve (665) is sleeved on one side of the outer surface of the hollow straight rod (661) close to the bent connecting rod (663). The outer surface of the isolation compression sleeve (665) is slidably connected to the inner wall of the sleeve shell (64), and the bent connecting rod (663) extends to the outside of the sleeve shell (64) through the through opening.

4. The air-cooled laser handheld welder according to claim 3, characterized in that: An air inlet groove (662) is evenly provided on one side of the inner cavity of the bent connecting rod (663) close to the welding end (62), an exhaust port is evenly provided in the middle of the inner cavity of the hollow straight rod (661), the bottom end of the threaded sleeve (666) is fixedly connected to the outer surface of the sleeve shell (64), and the bottom end of the twist push rod (667) is rotatably connected to the top end of the hollow straight rod (661).

5. The air-cooled laser handheld welder according to claim 4, characterized in that: The inner wall of the scale nut (63) is rotatably connected to the front end of the gun-type grip (51), and the axis of the inner wall of the sleeve shell (64) is rotatably connected to the outer surface of the protective shell (61) through an annular groove.

Images