A handheld laser welding gun that is easy to replace

Abstract

The utility model discloses a handheld laser welding gun that is easy to replace, comprising: a laser welding gun body, a welding nozzle is arranged at the port of the laser welding gun body; a handle assembly is arranged at the bottom of the laser welding gun body to assist the use of the laser welding gun body, the top of the handle assembly is hingedly arranged with the bottom of the laser welding gun body, and semicircular plates fixed to the bottom of the laser welding gun body are arranged on both sides of the handle assembly, and a locking mechanism for fixing the two is arranged between the semicircular plate and the handle assembly. The utility model can change the angle between the handle assembly and the laser welding gun body by arranging a rotatable structure between the handle assembly and the laser welding gun body, and then cooperating with the arrangement of the semicircular plate on the laser welding gun body and the locking mechanism between the handle assembly and the semicircular plate, so as to facilitate the user to hold the laser welding gun body, thereby improving the adaptability and work quality of the laser welding gun.

Description

Technical Field

[0001] The utility model relates to the technical field of handheld laser welding guns, in particular to a handheld laser welding gun which is easy to replace. Background Art

[0002] The handheld laser welding gun is one of the important equipment in laser welding equipment. It is used to heat the surface of the workpiece with laser radiation so that the surface heat diffuses to the inside through heat conduction. By controlling the width, energy, peak power and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool. Due to its unique advantages, it has been used in the precision welding of micro and small parts.

[0003] In a handheld laser welding gun, the handle is one of the important structures for assisting in holding the laser welding gun. However, the handle and the gun body of the handheld laser welding guns currently used cannot be adjusted, which makes it inconvenient to hold the handle when the laser welding gun is welding at some small spaces and specific angles on the workpiece, affecting its use effect and thus affecting the working quality of the laser welding gun. Utility Model Content

[0004] The utility model aims to provide a handheld laser welding gun which is easy to replace, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a handheld laser welding gun that is easy to replace, comprising:

[0006] A laser welding gun body, wherein a welding nozzle is provided at a port of the laser welding gun body;

[0007] A handle assembly is arranged at the bottom of the laser welding gun body to assist in the use of the laser welding gun body;

[0008] The top of the handle assembly is hinged to the bottom of the laser welding gun body, and semicircular plates fixed to the bottom of the laser welding gun body are arranged on both sides of the handle assembly. A locking mechanism for fixing the semicircular plates and the handle assembly is arranged between the semicircular plates and the handle assembly.

[0009] Preferably, the locking mechanism comprises an arcuate through hole formed on the outer wall of the semicircular plate, a positioning screw fixed to the handle assembly is movably inserted in the inner cavity of the arcuate through hole, and one end of the positioning screw passes through the arcuate through hole handle and is threadedly sleeved with a locking nut.

[0010] Preferably, two horn blocks are symmetrically fixedly connected to one side of the clamping nut away from the semicircular plate, and one end of the horn block away from the positioning screw is bent.

[0011] Preferably, a non-slip washer is fixedly connected to the side of the clamping nut facing the semicircular plate, and a frosted surface is provided on the side of the non-slip washer facing the semicircular plate.

[0012] Preferably, one end of the welding nozzle is fixedly connected with an internal thread joint, and the inner side of the internal thread joint is threadedly connected to an external thread pipe head provided at the port of the laser welding gun body.

[0013] Preferably, the handle assembly includes a first handle and a second handle, the first handle is slidably mounted on the outer wall of the second handle, the bottom thread of the outer wall of the first handle is inserted and connected with a locking bolt, the top of the first handle is inserted with a hinge block through a groove, a connecting pin is inserted at the connection position between the hinge block and the first handle, the top of the hinge block is fixedly connected to a mounting plate, and the bottom end of the second handle is fixedly provided with an auxiliary handle seat.

[0014] Technical effects and advantages of the utility model:

[0015] (1) The utility model provides a rotatable structure between the handle assembly and the laser welding gun body, and cooperates with the arrangement of a semicircular plate on the laser welding gun body and a locking mechanism between the handle assembly and the semicircular plate, so that the angle between the handle assembly and the laser welding gun body can be changed, making it easier for the user to hold the laser welding gun body, thereby improving the adaptability and work quality of the laser welding gun;

[0016] (2) The utility model can conveniently and quickly lock or unlock the handle assembly and the semicircular plate through the locking mechanism composed of the arc-shaped through hole, the positioning screw, the clamping nut and the horn block on the semicircular plate. The operation is simple and convenient, which makes the position adjustment of the handle assembly easier and improves the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the side structure of the first handle of the utility model.

[0019] Figure 3 For this utility model Figure 1 Schematic diagram of the local enlarged structure at A.

[0020] In the figure: 1. Laser welding gun body; 11. Welding nozzle; 12. Internal thread joint; 2. Handle assembly; 21. First handle; 22. Second handle; 23. Locking bolt; 24. Auxiliary handle seat; 3. Articulated block; 31. Connecting pin; 32. Mounting plate; 4. Semicircular plate; 41. Arc through hole; 42. Positioning screw; 43. Pressing nut; 44. Horn block; 45. Anti-slip washer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-3 A hand-held laser welding gun that is easy to replace includes:

[0023] The laser welding gun body 1 has a welding nozzle 11 at the port of the laser welding gun body 1. One end of the welding nozzle 11 is fixedly connected with an internal thread joint 12. The inner side of the internal thread joint 12 is threadedly connected with an external thread pipe head arranged at the port of the laser welding gun body 1. The welding nozzle 11 is threadedly connected with the external thread pipe head at the upper port of the laser welding gun body 1 through the internal thread joint 12, so that the welding nozzle 11 can be easily disassembled and assembled on the laser welding gun body 1, so as to facilitate the later maintenance, overhaul or replacement operation.

[0024] The handle assembly 2 is arranged at the bottom end of the laser welding gun body 1 to assist the use of the laser welding gun body 1. The handle assembly 2 includes a first handle 21 and a second handle 22. The first handle 21 is slidably sleeved on the outer wall of the second handle 22. The bottom thread of the outer wall of the first handle 21 is interspersed with a locking bolt 23. The handle assembly 2 is set to a telescopic structure of the first handle 21 and the second handle 22, and then the locking bolt 23 is tightened to squeeze and fix the two, so as to adjust the length of the handle assembly 2, so as to adjust the length of the handle assembly 2 according to the needs of the user and the requirements of the operating space. The top of the first handle 21 is interspersed with a hinge block 3 through the groove. A connecting pin 31 is interspersed between the connecting position of the connecting block 3 and the first handle 21. The hinge block 3 cooperates with the connecting pin 31 to realize a rotational connection between the top of the first handle 21 and the laser welding gun body 1, which is convenient for the handle assembly 2 to rotate and adjust the angle. A mounting plate 32 is fixedly connected to the top of the hinge block 3. A through hole for screw installation is provided on the mounting plate 32 to facilitate the fixed installation between the mounting plate 32 and the laser welding gun body 1. An auxiliary handle seat 24 is fixedly provided at the bottom end of the second handle 22. The setting of the auxiliary handle seat 24 not only serves to limit the hand grip, but also increases its contact area with the placement surface, thereby improving the stability of the bottom of the handle assembly 2 when it is against the placement surface.

[0025] The top of the handle assembly 2 is hingedly arranged with the bottom of the laser welding gun body 1, and semicircular plates 4 fixed to the bottom end of the laser welding gun body 1 are arranged on both sides of the handle assembly 2. A locking mechanism for fixing the semicircular plate 4 and the handle assembly 2 is arranged between the semicircular plate 4 and the handle assembly 2. The arrangement of the semicircular plate 4 cooperates with the locking mechanism, so that the handle assembly 2 and the semicircular plate 4 can be fixed at multiple points, which is convenient for adjusting the installation angle between the handle assembly 2 and the laser welding gun body 1;

[0026] The locking structure includes an arc-shaped through hole 41 formed on the outer wall of the semicircular plate 4. A positioning screw 42 fixed to the handle assembly 2 is movably inserted in the inner cavity of the arc-shaped through hole 41. One end of the positioning screw 42 passes through the arc-shaped through hole 41 and is threadedly sleeved with a clamping nut 43. When the handle assembly 2 rotates, the positioning screw 42 is driven to move in the arc-shaped through hole 41 of the semicircular plate 4, and then the clamping nut 43 is tightened to squeeze the side wall of the semicircular plate 4, thereby maintaining the fixation between the positioning screw 42 and the semicircular plate 4, so that the fixation between the handle assembly 2 and the laser welding gun body 1 can be achieved;

[0027] Two horn blocks 44 are symmetrically fixedly connected to the side of the clamping nut 43 away from the semicircular plate 4. The end of the horn block 44 away from the positioning screw 42 is bent. The setting of the horn block 44 can increase the comfort of the operator's grip, facilitate the rotation of the clamping nut 43, and increase the convenience of operation. The side of the clamping nut 43 facing the semicircular plate 4 is fixedly connected with an anti-slip washer 45. The side of the anti-slip washer 45 facing the semicircular plate 4 is provided with a frosted surface. The anti-slip washer 45 is used to increase the friction resistance between the clamping nut 43 and the side wall of the semicircular plate 4, thereby enhancing the locking strength.

[0028] Working principle of this utility model:

[0029] When adjusting the angle between the handle assembly 2 and the laser welding gun body 1, it is only necessary to manually loosen the clamping nut 43 through the horn block 44 to release the fixation between the semicircular plate 4 and the positioning screw 42, and then manually pull the handle assembly 2 to make the handle assembly 2 rotate at the bottom end of the laser welding gun body 1 through the hinge block 3 and the connecting pin 31 to adjust the angle between the handle assembly 2 and the laser welding gun body 1. When the handle assembly 2 is adjusted to a suitable position, it is only necessary to manually tighten the clamping nut 43 through the horn block 44 so that the clamping nut 43 cooperates with the anti-slip washer 45 to squeeze the side wall of the semicircular plate 4, so as to fix the position of the positioning screw 42 in the arc-shaped through hole 41 of the semicircular plate 4. In this way, the position of the handle assembly 2 can be quickly fixed, so that subsequent users can hold and use it.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A handheld laser welding gun that is easy to replace, comprising: A laser welding gun body (1), wherein a welding nozzle (11) is provided at a port of the laser welding gun body (1); A handle assembly (2) is arranged at the bottom end of the laser welding gun body (1) to assist in the use of the laser welding gun body (1); The invention is characterized in that the top of the handle assembly (2) is hingedly connected to the bottom of the laser welding gun body (1), semicircular plates (4) fixed to the bottom of the laser welding gun body (1) are arranged on both sides of the handle assembly (2), and a locking mechanism for fixing the semicircular plates (4) and the handle assembly (2) is arranged between the semicircular plates (4) and the handle assembly (2).

2. The handheld laser welding gun that is easy to replace according to claim 1 is characterized in that: The locking mechanism comprises an arc-shaped through hole (41) formed on the outer wall of the semicircular plate (4), a positioning screw (42) fixed to the handle assembly (2) being movably inserted into the inner cavity of the arc-shaped through hole (41), and one end of the positioning screw (42) passing through the arc-shaped through hole (41) and being threadedly sleeved with a locking nut (43).

3. The handheld laser welding gun that is easy to replace according to claim 2 is characterized in that: Two horn blocks (44) are symmetrically fixedly connected to one side of the clamping nut (43) away from the semicircular plate (4), and one end of the horn block (44) away from the positioning screw (42) is bent.

4. The handheld laser welding gun that is easy to replace according to claim 2 is characterized in that: A non-slip washer (45) is fixedly connected to the side of the clamping nut (43) facing the semicircular plate (4), and a frosted surface is provided on the side of the non-slip washer (45) facing the semicircular plate (4).

5. The handheld laser welding gun that is easy to replace according to claim 1 is characterized in that: One end of the welding nozzle (11) is fixedly connected to an internal thread joint (12), and the inner side of the internal thread joint (12) is threadedly connected to an external thread pipe head provided at the port of the laser welding gun body (1).

6. The easily replaceable handheld laser welding gun according to claim 1, characterized in that: The handle assembly (2) comprises a first handle (21) and a second handle (22), wherein the first handle (21) is slidably sleeved on the outer wall of the second handle (22), a locking bolt (23) is threadedly inserted and connected to the bottom of the outer wall of the first handle (21), a hinge block (3) is inserted and arranged through a groove at the top of the first handle (21), a connecting pin (31) is inserted and arranged at the connection position between the hinge block (3) and the first handle (21), a mounting plate (32) is fixedly connected to the top end of the hinge block (3), and an auxiliary handle seat (24) is fixedly arranged at the bottom end of the second handle (22).

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