Direct-current manual electric arc welder with safety protection structure

Abstract

The invention relates to the field of direct-current manual electric arc welding machines, in particular to a direct-current manual electric arc welding machine with a safety protection structure. A mounting piece is arranged at the top of the welding gun; the welding rod conveying module is installed on the welding gun through the installation piece, the welding rod conveying module conveys the welding rod, the welding rod conveying module conveys the welding rod so that the welding rod can move relative to one side of a heating part of the welding gun, and the welding rod moves to be close to the heating part of the welding gun. The welding gun heating part melts the end part of the welding rod to realize welding; the welding rod is molten in a point mode, and it is ensured that welding spots at the welding position are small and overall uniform; and a mask does not need to be worn, so that good operation experience during welding is ensured.

Description

Technical Field

[0001] The invention relates to the field of manual arc welding machines, and in particular to a direct current manual arc welding machine with a safety protection structure. Background Art

[0002] With the improvement of the intelligence level of machinery, the use of many mechanical and electrical equipment has become more convenient. The existing DC manual arc welding machine still needs to hold the mask or wear a mask to operate during the welding process, which increases the difficulty of welding and makes the overall experience of welding work not good. In particular, the existing welding machine still requires the welder to manually control the welding rod for welding. The overall work is not continuous enough and the welding spot is prone to being too large and uneven during the welding process. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the present invention provides a DC manual arc welding machine with a safety protection structure.

[0004] The technical solution of the present invention is:

[0005] The present invention provides a DC manual arc welding machine with a safety protection structure, comprising a welding gun, a mounting part is arranged on the top of the welding gun;

[0006] The welding rod conveying module and the rod-shaped welding rod are installed on the welding gun through the mounting part. The welding rod conveying module conveys the welding rod. The welding rod conveying module conveys the welding rod so that the welding rod and one side of the heating part of the welding gun move. The welding rod moves closer to the heating part of the welding gun, and the heating part of the welding gun melts the end of the welding rod to realize welding.

[0007] Furthermore, the welding rod transmission module includes a fixed tube, which is fixedly installed at the end of the mounting piece, and one end of the fixed tube is close to the heating part of the welding gun; a clamping and transmission component is provided in the fixed tube for clamping and driving the welding rod to move axially along the fixed tube, and the clamping and transmission component includes a through groove, and an axially symmetrical through groove is provided on the outer side of the fixed tube, and a group of transmission rollers are provided in the through groove, and each group of transmission rollers are connected by a conveyor belt, and the inner side of the conveyor belt extends into the interior of the fixed tube, and the outer side of the conveyor belt is located on the outside of the fixed tube, and the outer side of the conveyor belt is provided with oblique convex strips, and the outer side of the fixed tube is provided with a driving component for simultaneously driving the conveyor belt to transmit the welding rod inside the fixed tube.

[0008] Furthermore, the driving assembly includes a sleeve rotatably mounted on the outside of the fixed tube, an internally threaded tube is installed inside the sleeve, the inner side of the internally threaded tube engages with the convex strip on the outside of the conveyor belt, and a power assembly for driving the sleeve to rotate is provided on the outside of the fixed tube.

[0009] Furthermore, the power assembly includes a motor fixedly mounted on the outside of the fixed tube, the output shaft of the motor is parallel to the fixed tube, a gear is fixedly mounted on the outer end of the motor output shaft, an external gear ring is fixedly mounted on the outer periphery of the sleeve, and the gear is meshed with the external gear ring.

[0010] Furthermore, a glass cover is arranged on the outside of the fixed tube, the glass cover is bucket-shaped, and the glass cover is made of shading material, and the glass cover shields the lower end of the fixed tube and the outside of the heating part of the welding gun.

[0011] Furthermore, a C-shaped scraper strip is installed on the outer periphery of the fixed tube through a bracket. The scraper strip is located outside the glass cover. The inner side of the scraper strip contacts and cooperates with the glass cover. The glass cover is fixedly installed on the outer side of the sleeve outside the fixed tube.

[0012] Furthermore, the mounting member includes an upper arc-shaped mounting rod and a lower mounting plate, the upper end of the mounting rod is fixedly connected to one side of the upper portion of the fixed tube, and the mounting plate is detachably connected to the top of the welding gun.

[0013] The beneficial effects achieved by the present invention are:

[0014] The present invention moves and transmits the welding rod through the welding rod transmission module, and makes the welding rod and the heating part of the welding machine in point-to-point contact, so that the welding rod is point-melted, ensuring that the weld spot at the welding place is small and overall uniform; at the same time, the welding rod is continuously transmitted by clamping the conveyor belt, so that the welding work is continuous and smooth; and the present invention arranges the glass cover on the outside of the welding rod and the welding gun heating part to shield the flame generated during the welding process, and there is no need to wear a mask, ensuring a good operating experience during welding; and through the relative rotation of the glass cover and the scraper, the glass cover is kept clean during the welding process, ensuring clarity during welding, and the present invention adopts a motor to realize the transmission of the welding rod and the scraping and cleaning of the glass cover, so as to make full use of energy and reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the first overall structural schematic diagram of the present invention application.

[0016] Figure 2 It is a second overall structural schematic diagram of the present invention application.

[0017] Figure 3 yes Figure 2 A magnified view of the part in center Ⅰ. DETAILED DESCRIPTION

[0018] To facilitate those skilled in the art to understand the present invention, specific implementations of the present invention are described below with reference to the accompanying drawings.

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0023] like Figures 1 to 3 As shown, the present invention provides a DC manual arc welding machine with a safety protection structure, characterized in that it comprises a welding gun 1, a mounting member 2 is arranged on the top of the welding gun;

[0024] The welding rod conveying module 3 and the welding rod 4 are installed on the welding gun 1 through the mounting part 2. The welding rod conveying module 3 conveys the welding rod 4. The welding rod conveying module 3 conveys the welding rod 4 so that the welding rod 4 moves with one side of the heating part of the welding gun 1, and the welding rod 4 is heated and melted by the heating part of the welding gun 1 to achieve welding.

[0025] In this embodiment, the welding rod 4 is continuously conveyed from the outside to the side of the heating part of the welding gun 1 through the welding rod conveying module 3, and the welding rod 4 is moved closer to the heating part of the welding gun 1. At the same time, the heating part of the welding gun 1 performs point contact melting on the end of the welding rod 4 conveyed from the welding rod conveying module 3, which can prevent the contact area between the welding rod 4 and the heating part of the welding gun 1 from being too large, and effectively prevent the melting amount of the welding rod 4, so as to ensure that the weld spot at the welding place is uniform and there is no large amount of molten material accumulated, the welding place is beautiful and the welding is stable. It should be understood that the welding rod 4 is in the shape of a bar; the welder holds the welding gun 1 to operate, and conveys the welding rod 4 through the welding rod conveying module 3, and the welding gun 1 is heated to perform welding.

[0026] In an optional embodiment, the welding rod conveying module 3 includes a fixed tube 5, which is fixedly mounted on the end of the mounting member 2, and one end of the fixed tube 5 is close to the heating portion of the welding gun 1, so that the welding rod 4 can enter the fixed tube 5 from the end away from the heating portion of the welding gun 1, and at the same time, a clamping and conveying component is provided in the fixed tube 5 for clamping and driving the welding rod 4 to move axially along the fixed tube 5, and the welding rod 4 in the fixed tube 5 is clamped and conveyed by the clamping and conveying component; a specific example of the clamping and conveying component is as follows: a through hole symmetrically symmetrically provided on the outer side of the fixed tube 5 A group of conveying rollers 7 are arranged in the groove 6 and the through groove 6, and each group of conveying rollers 7 are connected by a conveyor belt 8, and the inner side of the conveyor belt 8 extends into the interior of the fixed tube 5, and the outer side of the conveyor belt 8 is located outside the fixed tube 5. At the same time, in order to stably clamp and convey the welding rod 4, an oblique convex strip (not shown in the figure) is arranged on the outer side of the conveyor belt 8, so that the conveying of the inner welding rod 4 through the convex strip is more stable; a driving component is arranged on the outer side of the fixed tube 5 for simultaneously driving the conveyor belt 8 to convey the welding rod 4 inside the fixed tube 5.

[0027] A specific example of a driving assembly is as follows: a sleeve 9 is rotatably mounted on the outer side of the fixed tube 5, and an internally threaded tube 10 is installed on the inner side of the sleeve 8. The inner side of the internally threaded tube 10 meshes with the convex strips on the outer side of the conveyor belt 8. By meshing the internally threaded tube 10 with the convex strips, the outer sleeve 9 is rotated to drive the two conveyor belts 8 to move in the same direction at the same time, thereby moving the welding rod 4 to the heating part of the welding gun 1. In this way, there is no need to set an independent driving member in the fixed tube 4 to drive each group of conveying rollers 7. Only a power assembly for driving the sleeve 9 to rotate is required. A specific example of a power assembly is as follows: a motor 11 is fixedly installed on the outer side of the fixed tube 5, and the output shaft of the motor 11 is parallel to the fixed tube 5. A gear 12 is fixedly installed on the outer end of the output shaft of the motor 11. At the same time, an external toothed ring 13 is fixedly installed on the outer periphery of the sleeve 9. The gear 12 meshes with the external toothed ring 13. In this way, the conveyor belt 8 inside the fixed tube 5 can be driven to move by the motor 11 located outside the fixed tube 5 to achieve clamping and transmission of the welding rod 4.

[0028] In an optional embodiment, a glass cover 14 is provided on the outside of the fixed tube 5. The glass cover 14 is bucket-shaped. The glass cover 14 is used as a substitute for a shading sheet in daily welding. The glass cover 14 is made of shading material. The glass cover 14 shields the lower end of the fixed tube 5 and the outside of the heating part of the welding gun 1. During welding, the glass cover 14 filters the welding flame.

[0029] In an optional embodiment, a C-shaped scraper 16 is installed on the outer periphery of the fixed tube 4 through a bracket 15. The scraper 16 is located on the outer side of the glass cover 14, and the inner side of the scraper 16 is in contact with the glass cover 14. The scraper 16 and the glass cover 14 rotate relative to each other to scrape the inner and outer sides of the glass cover 14 to prevent dust generated during welding from adhering to the outer side of the glass cover 14 and affecting the welding operation. At the same time, in order to prevent the scraper 16 from blocking the operator's line of sight, the scraper 16 and the welding gun 1 are respectively located on both sides of the fixed tube 5.

[0030] In this embodiment, the glass cover 14 is fixedly installed on the outside of the sleeve 9 outside the fixed tube 5. Through the fixed connection between the glass cover 14 and the sleeve 9, the rotation of the sleeve 9 can drive the glass cover 14 to rotate accordingly, so that the glass cover 14 and the scraper 16 can rotate relative to each other. During the welding process, the scraper 16 can be kept to clean the glass cover 14, so that the welding personnel can clearly see the welding position and scrape and clean it in time. Dust generated during the welding process will not stick to the glass cover 14, and the glass cover 14 as a whole will remain clear.

[0031] In an optional embodiment, the mounting member 2 includes an upper arc-shaped mounting rod 17 and a lower mounting plate 18, the upper end of the mounting rod 17 is fixedly connected to the upper side of the fixed tube 5, and the mounting plate 18 is detachably connected to the top of the welding gun 1, so that the mounting member 2 and the electrode conveying module 3 can be separated from the welding gun 1 as a whole, which is convenient for the reuse of the electrode conveying module 3 and can be adapted to different welding guns 1.

[0032] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A DC manual arc welding machine with a safety protection structure, comprising: It includes a welding gun, the top of which is provided with a mounting piece; The welding rod conveying module and the rod-shaped welding rod are installed on the welding gun through the mounting part. The welding rod conveying module conveys the welding rod. The welding rod conveying module conveys the welding rod so that the welding rod and one side of the heating part of the welding gun move. The welding rod moves closer to the heating part of the welding gun, and the heating part of the welding gun melts the end of the welding rod to realize welding.

2. A DC manual arc welding machine with a safety protection structure according to claim 1, characterized in that: The welding rod transmission module includes a fixed tube, which is fixedly installed at the end of the mounting piece, and one end of the fixed tube is close to the heating part of the welding gun; a clamping and transmission component is provided in the fixed tube for clamping and driving the welding rod to move axially along the fixed tube, and the clamping and transmission component includes a through groove, and an axially symmetrical through groove is provided on the outer side of the fixed tube, and a group of transmission rollers are provided in the through groove, and each group of transmission rollers are connected by a conveyor belt, and the inner side of the conveyor belt extends into the interior of the fixed tube, and the outer side of the conveyor belt is located on the outside of the fixed tube, and the outer side of the conveyor belt is provided with oblique convex strips, and a driving component is provided on the outer side of the fixed tube for simultaneously driving the conveyor belt to transmit the welding rod inside the fixed tube.

3. A DC manual arc welding machine with a safety protection structure according to claim 2, characterized in that: The driving assembly includes a sleeve rotatably mounted on the outside of a fixed tube, an internally threaded tube is installed inside the sleeve, the inner side of the internally threaded tube engages with the convex strips on the outside of the conveyor belt, and a power assembly for driving the sleeve to rotate is arranged outside the fixed tube.

4. A DC manual arc welding machine with a safety protection structure according to claim 3, characterized in that: The power assembly includes a motor fixedly mounted on the outside of the fixed tube, the output shaft of the motor is parallel to the fixed tube, a gear is fixedly mounted on the outer end of the motor output shaft, an outer gear ring is fixedly mounted on the outer periphery of the sleeve, and the gear is meshed with the outer gear ring.

5. A DC manual arc welding machine with a safety protection structure according to claim 4, characterized in that: A glass cover is arranged on the outside of the fixed tube. The glass cover is bucket-shaped and made of light-shielding material. The glass cover shields the lower end of the fixed tube and the outside of the welding gun heating part.

6. A DC manual arc welding machine with a safety protection structure according to claim 5, characterized in that: A C-shaped scraper strip is installed on the outer periphery of the fixed tube through a bracket. The scraper strip is located outside the glass cover. The inner side of the scraper strip contacts and cooperates with the glass cover. The glass cover is fixedly installed on the outer side of the sleeve outside the fixed tube.

7. A DC manual arc welding machine with a safety protection structure according to any one of claims 1 to 6, characterized in that: The mounting piece comprises an upper arc-shaped mounting rod and a lower mounting plate, the upper end of the mounting rod is fixedly connected to one side of the upper part of the fixed pipe, and the mounting plate is detachably connected to the top of the welding gun.

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