Direct-current electric welding machine

Abstract

The utility model relates to the technical field of bending and welding, and particularly discloses a direct-current electric welding machine which comprises a rack, a bending part arranged on the outer side of the rack, a welding part arranged on the outer side of the rack, and a protection mechanism arranged on the outer side of the welding part. Welding slag splashes generated by welding cannot be splashed to the body of a worker, the welding condition can be conveniently observed, the body health of the worker is protected, meanwhile, the protective shell can be rapidly disassembled, the welding slag splashes blocked in the protective shell can be cleaned, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending welding, in particular to a direct current welding machine. Background Art

[0002] A DC welder utilizes direct current for welding, providing a stable arc and high weld quality. DC welders are typically suitable for welding non-ferrous metals, cast iron, and welds requiring deep penetration. Compared to AC welders, DC welders offer improved arc stability and weld control, making them particularly well-suited for thicker plates and other demanding welds.

[0003] After searching the publication number: CN221134844U, a bending and welding intelligent integrated machine is disclosed, which includes a frame, a bending part, and a welding part. The bending part includes a base frame installed on the frame, and two groups of end frames and two groups of intermediate frames are horizontally slidably installed on the base frame. The two groups of end frames are horizontally driven by a screw rod to adjust the distance between them, and the two groups of intermediate frames are horizontally driven by a screw rod to adjust the distance between them. Bending parts are installed on the two groups of end frames and the two groups of intermediate frames, and a group of brackets are also mounted on the base frame. The welding part is located above the two groups of intermediate frames and is used to weld the ends of the bent U-shaped steel strips. This new type makes it possible to complete four-way bending on one set of equipment and directly weld and seal the products in the U-shaped shape after bending. At the same time, the structural components used to achieve bending and forming are more flexible and can have a certain position adjustability to adapt to the bending and forming of steel strips of various sizes.

[0004] In the above patent, when the U-shaped steel strip is sealed by welding, some workpieces will be contaminated with impurities on the surface during the transmission process, including oil, rust, moisture and other impurities. These impurities will generate gas during the welding process, causing the gas in the molten droplet or molten pool to escape or explode, thereby generating spatter. During welding, the spatter is easy to splash onto the workers, causing harm to the workers and affecting their health. For this reason, we propose a DC welding machine. Utility Model Content

[0005] The purpose of the utility model is to provide a DC welding machine to solve the problem in the above background technology that there is no blocking protection for the spatter generated by welding during welding, which easily causes the spatter to splash onto the workers and affect their health.

[0006] To achieve the above object, the utility model provides the following technical solution: a DC welding machine, comprising: a frame, a bending portion is provided on the outside of the frame, a welding portion is provided on the outside of the frame, and a protective mechanism is provided on the outside of the welding portion.

[0007] Among them, the protective mechanism includes a protective shell and two outer shells. The outer side of the protective shell is arranged on the outside of the welding part. Both ends of the protective shell are fixedly connected with fixed blocks. The fixed blocks are slidably connected inside the fixed blocks. The outer sides of the two outer shells are fixedly connected to the outside of the welding part. The inside of the shell is slidably connected with a plug-in rod. A spring 1 is provided on the outer periphery of the plug-in rod. A sliding block is fixedly connected to the outside of the plug-in rod. The top of the shell is fixedly connected to the shell. A stopper is slidably connected inside the shell. The outside of the stopper is fixedly connected with a connecting block. A spring 2 is provided inside the shell.

[0008] One end of the spring is fixedly connected to the inner wall of the shell, and the other end of the spring is fixedly connected to the outer side of the sliding block.

[0009] Among them, one end of the spring 2 is fixedly connected to the inner wall of the shell, and the other end of the spring 2 is fixedly connected to the top of the connecting block.

[0010] The outer side of the stopper is slidably connected to the inside of the shell, and the stopper and the sliding block are in abutment with each other.

[0011] The outer side of the sliding block is slidably connected to the inside of the shell, and the outer side of the clamping block is slidably connected to the inside of the welding part.

[0012] Among them, one end of the plug-in rod away from the sliding block is fixedly connected with a pulling column, and the shell passes through the fixed block and is plugged into the inside of the clamping block.

[0013] Among them, the outer side of the mounting block is fixedly connected to the outer side of the protective shell, the outer periphery of the blocking block is rotatably connected to the inside of the air intake pipe, the outer periphery of the connecting pipe is fixedly connected to the inner side of the protective shell, and the outer side of the second nozzle is fixedly connected to the protective shell.

[0014] The utility model has at least the following beneficial effects:

[0015] The utility model discloses a welding slag is to be welded on the welding surface, and the ... BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the structure of the plug-in rod of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the nozzle of the utility model;

[0020] Figure 5 This is a schematic diagram of the blocking block structure of the utility model.

[0021] In the figure: 1. Frame; 2. Bending part; 3. Welding part; 4. Protective mechanism; 40. Protective shell; 41. Fixing block; 42. Clamping block; 43. Shell; 44. Connecting rod; 45. Spring 1; 46. Sliding block; 47. Shell; 48. Stop block; 49. Connecting block; 410. Spring 2; 411. Pull column; 412. Inlet pipe; 413. Mounting block; 414. Motor; 415. Blocking block; 416. Nozzle; 417. Connecting pipe. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] See also Figures 1 to 5 The utility model provides a technical solution: a DC welding machine, including a frame 1, a bending portion 2 is provided on the outside of the frame 1, a welding portion 3 is provided on the outside of the frame 1, and a protective mechanism 4 is provided on the outside of the welding portion 3. When in use, the bending portion 2 first bends the steel strip into a square shape, and then uses the welding portion 3 to weld the interface of the square-shaped steel strip. By setting the protective mechanism 4, the welding slag splashes generated by the welding are prevented from splashing onto the body of the worker and affecting the worker's health.

[0025] The protective mechanism 4 includes a protective shell 40 and two shells 43. The outer side of the protective shell 40 is arranged on the outer side of the welding part 3. Both ends of the protective shell 40 are fixedly connected to the fixed block 41. The fixed block 41 is slidably connected to the card block 42. The outer sides of the two shells 43 are fixedly connected to the outer side of the welding part 3. The shell 43 is slidably connected to the plug rod 44. The plug rod 44 is sleeved with a spring 45 on the outer periphery. The plug rod 44 is fixedly connected to the outer side of the sliding block 46. The top of the shell 43 is fixedly connected to the shell 47. The shell 47 is slidably connected to the block 48. The outer side of the block 48 is fixedly connected to the connecting block 49. The shell 47 is provided with a spring 2 410. One end of the protective shell 40 is fixedly connected to the inside of the air intake pipe 412. The outer side of the air intake pipe 412 A mounting block 413 is fixedly connected, a motor 414 is fixedly connected to the top of the mounting block 413, an obstruction block 415 is fixedly connected to the output end of the motor 414, a nozzle 1 416 is fixedly connected to the output end of the air inlet pipe 412, a connecting pipe 417 is fixedly connected to the outside of the nozzle 1 416, and a nozzle 2 418 is fixedly connected to the end of the connecting pipe 417 away from the nozzle 1 416. During use, when the linear module of the welding part 3 drives the welding part 3 as a whole to seal the steel strip, it also drives the protective shell 40 to cover the part of the steel strip that needs to be sealed to prevent welding slag and splashing. The motor 414 is started according to the size of the steel strip, and the motor 414 drives the obstruction block 415 to rotate to adjust the output of the air inlet pipe 412. The flow of shielding gas is sprayed out through nozzle 1 416, and then through the connected input nozzle 2 418, and sprayed out from nozzle 2 418, forming a shielding gas wall on the glass of the protective shell 40 to prevent splashing objects from adhering to the glass and affecting the staff's observation of the welding situation. When the protective shell 40 is disassembled for cleaning, the pull column 411 is pulled, and the pull column 411 drives the plug rod 44 to slide inside the shell 43. When the plug rod 44 slides, it slides out from the inside of the block 42 to slide into the inside of the shell 43. When the plug rod 44 slides, it also drives the sliding block 46 to slide inside the shell 43. When the sliding block 46 slides, the spring 1 45 is compressed, so that the spring 1 45 generates elastic force. When the sliding block 46 slides, the stopper 48 inside the shell 47 loses its support. The connecting block 49 is pushed by the spring 2 410 inside the shell 47 to drive the stopper 48 to slide into the shell 43. The outer side of the stopper 48 abuts against the sliding block 46 to prevent the spring 1 45 from pushing the sliding block 46. The sliding block 46 is reset with the plug-in rod 44. At this time, the protective shell 40 can be removed and the welding slag and spatter attached to it can be cleaned. During installation, the protective shell 40 is attached to the outer side of the welding part 3, and then the card block 42 is slid in, and then the stopper 48 is pulled. The stopper 48 slides into the shell 47 without abutting against the sliding block 46. The spring 1 45 drives the sliding block 46 to slide, and the sliding block 46 drives the plug-in rod 44 to reset and insert into the card block 42. At this time, the top of the sliding block 46 abuts against the bottom of the stopper 48 to prevent the stopper 48 from sliding into the shell 43.

[0026] Example 2

[0027] In the second embodiment, other structures remain unchanged. The difference from the first embodiment is that one end of the spring 1 45 is fixedly connected to the inner wall of the shell 43 and the other end is fixedly connected to the outside of the sliding block 46, so that the spring 1 45 can be compressed by the sliding block 46 to provide elastic force, one end of the spring 2 410 is fixedly connected to the inner wall of the shell 47 and the other end is fixedly connected to the top of the connecting block 49, so that the spring 2 410 can provide elastic force to push the connecting block 49, the outer side of the stopper 48 is slidably connected to the inside of the shell 43, so that the stopper 48 can slide into the inside of the shell 43, and the stopper 48 and the sliding block 46 abut against each other, so that the stopper 48 can block the sliding block 46 to prevent the sliding block 46 from being pushed by the spring 1 45 to automatically reset, and the outer side of the sliding block 46 is slidably connected to the inside of the shell 43, so that the sliding block 46 slides stably, the outer side of the block 42 is slidably connected to the inside of the welding part 3, so that the protective shell 40 is stably installed, and the end of the connecting rod 44 away from the sliding block 46 is fixedly connected to the pull column 411, and the pull column 411 is used to facilitate pulling the connecting rod 44, and the outer shell 43 passes through the fixed block 41 and is plugged into the inside of the block 42, so that the protective shell 40 is stably installed. The outer side of the mounting block 413 is fixed to the outer side of the protective shell 40, so that the mounting block 413 is stably installed, and the outer periphery of the blocking block 415 rotates inside the air inlet pipe 412, so that the blocking block 415 can rotate smoothly to adjust the flow of the protective gas, and the outer periphery of the connecting pipe 417 is fixed to the inner side of the protective shell 40, so that the connecting pipe 417 is stably installed, and the outer side of the nozzle 2 418 is fixed to the protective shell 40, so that the nozzle 2 418 is stably installed.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A DC welding machine, comprising a frame (1), characterized in that: A bending portion (2) is provided on the outside of the frame (1), a welding portion (3) is provided on the outside of the frame (1), and a protective mechanism (4) is provided on the outside of the welding portion (3).

2. The DC welding machine according to claim 1, characterized in that: The protective mechanism (4) includes a protective shell (40) and two shells (43), the outer side of the protective shell (40) is arranged on the outer side of the welding part (3), both ends of the protective shell (40) are fixedly connected with fixed blocks (41), the fixed blocks (41) are internally slidably connected with a clamping block (42), the outer sides of the two shells (43) are fixedly connected to the outer side of the welding part (3), the shells (43) are internally slidably connected with a plug rod (44), the outer periphery of the plug rod (44) is provided with a spring (45), the outer side of the plug rod (44) is fixedly connected with a sliding block (46), the top of the shell (43) is fixedly connected with a shell (47), the shell (47) is internally slidably connected with a stopper (48), and the outer sides of the two shells (43) are fixedly connected to the outer side of the welding part (3). The outer side of the stop block (48) is fixedly connected to a connecting block (49), the inner side of the shell (47) is provided with a second spring (410), the inner side of one end of the protective shell (40) is fixedly connected to an air intake pipe (412), the outer side of the air intake pipe (412) is fixedly connected to a mounting block (413), the top of the mounting block (413) is fixedly connected to a motor (414), the output end of the motor (414) is fixedly connected to a blocking block (415), the output end of the air intake pipe (412) is fixedly connected to a nozzle 1 (416), the outer side of the nozzle 1 (416) is fixedly connected to a connecting pipe (417), and the end of the connecting pipe (417) away from the nozzle 1 (416) is fixedly connected to the nozzle 2 (418).

3. The DC welding machine according to claim 2, characterized in that: One end of the spring (45) is fixedly connected to the inner wall of the housing (43), and the other end of the spring (45) is fixedly connected to the outside of the sliding block (46).

4. The DC welding machine according to claim 2, characterized in that: One end of the second spring (410) is fixedly connected to the inner wall of the housing (47), and the other end of the second spring (410) is fixedly connected to the top of the connecting block (49).

5. The DC welding machine according to claim 2, characterized in that: The outer side of the stopper (48) is slidably connected to the inside of the housing (43), and the stopper (48) and the sliding block (46) are in abutment with each other.

6. The DC welding machine according to claim 2, characterized in that: The outer side of the sliding block (46) is slidably connected to the inside of the housing (43), and the outer side of the clamping block (42) is slidably connected to the inside of the welding portion (3).

7. The DC welding machine according to claim 2, characterized in that: One end of the plug-in rod (44) away from the sliding block (46) is fixedly connected to a pull column (411), and the housing (43) passes through the fixed block (41) and is plugged into the interior of the clamping block (42).

8. The DC welding machine according to claim 2, characterized in that: The outer side of the mounting block (413) is fixedly connected to the outer side of the protective shell (40), the outer periphery of the blocking block (415) is rotatably connected to the inside of the air inlet pipe (412), the outer periphery of the connecting pipe (417) is fixedly connected to the inner side of the protective shell (40), and the outer side of the second nozzle (418) is fixedly connected to the protective shell (40).

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