Welded part welding device with welding head protection function

Abstract

The utility model belongs to the technical field of welding, and particularly relates to a welding piece welding device with a welding head protection function, which comprises a shell, a handle, a welding head and a protection cover, the handle is fixedly arranged on the left side of the bottom of the shell, the welding head is arranged in the shell, and a protection device is arranged on the outer side of the shell. The protection device comprises a smoke removal unit and a fixing unit. According to the welding part welding device with the welding head protection function, by arranging the smoke removal unit, when a welding head welds a workpiece, an exhaust fan is started to suck smoke and gas generated during welding into a dust collection box through an exhaust pipe, and therefore the situation that the sight of workers is blocked by the smoke is avoided; and meanwhile, gas is prevented from being inhaled by a worker to injure the body, and the problems that smoke and harmful gas are generated when the welding material is welded in the background technology, the harmful gas is inhaled by the worker to injure the body, the sight of the worker is blocked by the smoke, and the welding quality is influenced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a welding device for welding parts with a welding head protection function. Background Art

[0002] Argon arc welding technology is a welding technology based on the principle of ordinary arc welding. It uses argon gas to protect metal welding materials. Through high current, the welding materials are melted into liquid on the base material to form a molten pool, so that the metal to be welded and the welding materials can achieve metallurgical bonding. Because argon gas is continuously supplied during high-temperature molten welding, the welding materials cannot come into contact with oxygen in the air, thereby preventing the oxidation of the welding materials. Therefore, stainless steel and iron hardware metals can be welded.

[0003] In the prior art, the tungsten needle of the argon arc welding gun is mostly directly exposed to the air, and the tungsten needle is easily damaged. The tungsten needle is an important component of the argon arc welding gun, which directly affects the service life of the welding gun. At the same time, the ceramic plate in the existing argon arc welding gun is mostly an integrated structure with the welding gun, and the ceramic plate is easily damaged by high temperature or bump, and the integrated structure design is not convenient for replacing the ceramic plate.

[0004] For example, a welding device with a welding head protection function disclosed in Chinese patent CN216462385U realizes the protection of the tungsten needle tip by setting a shell, a protective sleeve, a porcelain plate, a connecting plate and a hook plate. When the tungsten needle is not in use, the hook plate is manually rotated and disengaged from the slot. At this time, the protective sleeve is pushed to move under the action of the spring elastic force. The sliding groove and the slider are provided to make the protective sleeve play a guiding role, thereby improving the stability of the movement of the protective sleeve. The tungsten needle is completely received in the accommodating cavity through the protective sleeve, which effectively prevents the tungsten needle tip from being exposed to the air, reduces the probability of damage to the tungsten needle, and extends the service life of the device.

[0005] However, when the device is welding the welding material, smoke and harmful gases will be generated. If the harmful gases are inhaled by the workers, they will cause damage to the body. The smoke will block the workers' vision and affect the welding quality.

[0006] For this reason, we urgently need to provide a welding device for welding parts with welding head protection function. Utility Model Content

[0007] The purpose of the utility model is to provide a welding device for welding parts with a welding head protection function, so as to solve the problem proposed in the above background technology that smoke and harmful gases will be generated when welding the welding materials, and the harmful gases will cause damage to the body when inhaled by the workers, and the smoke will block the workers' vision and affect the welding quality.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding device for welding parts with a welding head protection function, comprising a shell, a handle, a welding head and a protective cover, the handle being fixedly installed on the left side of the bottom of the shell, the welding head being arranged inside the shell, the protective cover being slidably connected to the outside of the shell, and a protective device being arranged on the outside of the shell.

[0009] The protection device comprises a smoke removal unit and a fixing unit, wherein the smoke removal unit is arranged at the bottom of the protection cover, and the fixing unit is arranged at the top of the protection cover.

[0010] The smoke removal unit includes a dust box, an exhaust fan, a fixed block, an exhaust pipe and an air hood. The dust box is installed on the left side of the bottom of the protective cover, the exhaust fan is installed on the left side of the dust box, the fixed block is fixedly installed on the right side of the bottom of the protective cover, the exhaust pipe is connected to the right side of the dust box, and the air hood is installed at the end of the exhaust pipe away from the dust box.

[0011] Preferably, the fixing unit includes a support frame, a clamping rod, a disc, a spring and a handle. The support frame is fixedly installed on the left side of the top of the protective cover, the clamping rod is installed inside the support frame, the disc is fixedly installed on the outside of the clamping rod, one end of the spring is fixedly installed on the top of the clamping rod, and the handle is fixedly installed on the top of the clamping rod.

[0012] Preferably, a mounting hole is provided inside the fixing block, and the exhaust pipe is installed inside the mounting hole, and the exhaust pipe is fixed by the fixing block.

[0013] Preferably, the shell is provided with slide grooves on the front and rear sides, the protective cover is provided with protrusions on the front and rear sides, and the protective cover is slidably connected to the inside of the slide groove through the protrusions. The protective cover slides left and right along the slide groove so that the welding head is located inside the protective cover, thereby protecting the welding head.

[0014] Preferably, a clamping hole having the same diameter as the clamping rod is provided on the upper surface of the shell, and the clamping holes are equidistantly distributed on the upper surface of the shell, and the clamping rod passes through the protective cover and is clamped with the clamping hole, thereby fixing the position of the protective cover.

[0015] Preferably, the bottom of the spring is fixedly connected to the top of the disc, and after the clamping rod is clamped with the clamping hole opened in the shell, the spring squeezes the top of the support frame to provide downward push for the disc, so that the clamping rod and the clamping hole cooperate more stably.

[0016] Preferably, the bottom of the clamping rod is hemispherical, so as to facilitate the clamping connection between the clamping rod and the clamping hole opened on the upper surface of the shell.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The welding device for welding parts with welding head protection function is provided with a smoke removal unit. When the welding head welds the workpiece, the exhaust fan is started to draw the smoke and gas generated during welding into the dust collection box through the exhaust pipe, thereby avoiding the smoke from blocking the vision of the workers and preventing the gas from being inhaled by the workers to cause damage to the body. This solves the problem mentioned in the background technology that smoke and harmful gases will be generated when welding the welding materials, and the harmful gases will cause damage to the body when inhaled by the workers, and the smoke will block the vision of the workers, affecting the welding quality.

[0019] 2. The welding device for welding parts with welding head protection function is provided with a fixing unit. After the connection is completed, the handle is pulled upward until the clamping rod is disengaged from the clamping hole, and then the protective cover is pushed to the right until the welding head is completely located inside the protective cover. Then the handle is released, and under the action of the spring, the push disk drives the clamping rod to clamp with the clamping hole opened on the upper surface of the shell to fix the protective cover, thereby protecting the welding head through the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the smoke removal unit structure of the utility model;

[0022] Figure 3 This is a disassembled diagram of the connection between the housing and the protective cover of the utility model;

[0023] Figure 4 It is a cross-sectional view of the connection between the protective cover and the fixing unit of the utility model.

[0024] In the figure: 1. shell; 2. handle; 3. welding head; 4. protective cover; 501. dust box; 502. exhaust fan; 503. fixing block; 504. exhaust pipe; 505. wind cover; 601. support frame; 602. clamping rod; 603. disc; 604. spring; 605. handle. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-Figure 4 , the utility model provides a technical solution: Embodiment 1:

[0027] A welding device for welding parts with a welding head protection function comprises a shell 1, a handle 2, a welding head 3 and a protective cover 4, wherein the handle 2 is fixedly mounted on the left side of the bottom of the shell 1, the welding head 3 is arranged inside the shell 1, and the protective cover 4 is slidably connected to the outside of the shell 1, and slide grooves are provided on the front and rear sides of the shell 1, and protrusions are provided on the front and rear sides of the protective cover 4, and the protective cover 4 is slidably connected to the inside of the slide groove through the protrusions, and the protective cover 4 slides left and right along the slide groove so that the welding head 3 is located inside the protective cover 4, thereby protecting the welding head 3, and a protective device is provided on the outside of the shell 1.

[0028] The protection device includes a smoke removal unit and a fixing unit. The smoke removal unit is arranged at the bottom of the protection cover 4 , and the fixing unit is arranged at the top of the protection cover 4 .

[0029] The smoke removal unit includes a dust box 501, an exhaust fan 502, a fixed block 503, an exhaust pipe 504 and a hood 505. The dust box 501 is installed on the left side of the bottom of the protective cover 4, the exhaust fan 502 is installed on the left side of the dust box 501, the fixed block 503 is fixedly installed on the right side of the bottom of the protective cover 4, a mounting hole is opened inside the fixed block 503, the exhaust pipe 504 is installed inside the mounting hole, and the exhaust pipe 504 is fixed by the fixed block 503. The exhaust pipe 504 is connected to the right side of the dust box 501, and the hood 505 is installed at the end of the exhaust pipe 504 away from the dust box 501. Embodiment 2:

[0030] On the basis of Example 1: the fixing unit includes a support frame 601, a clamping rod 602, a disc 603, a spring 604 and a handle 605. The support frame 601 is fixedly installed on the left side of the top of the protective cover 4, and the clamping rod 602 is installed inside the support frame 601. A clamping hole with the same diameter as the clamping rod 602 is opened on the upper surface of the shell 1, and the clamping holes are equidistantly distributed on the upper surface of the shell 1. The clamping rod 602 penetrates the protective cover 4 and is clamped with the clamping hole, so as to fix the position of the protective cover 4. The disc 603 is fixedly installed on the outside of the clamping rod 602, one end of the spring 604 is fixedly installed on the top of the clamping rod 602, and the bottom of the spring 604 is fixedly connected to the top of the disc 603. After the clamping rod 602 is clamped with the clamping hole opened in the shell 1, the spring 604 squeezes the top of the support frame 601 to provide a downward push for the disc 603, so that the clamping rod 602 and the clamping hole cooperate more stably, and the handle 605 is fixedly installed on the top of the clamping rod 602. Embodiment three:

[0031] On the basis of the second embodiment: the bottom of the clamping rod 602 is hemispherical, so as to facilitate the clamping connection between the clamping rod 602 and the clamping hole opened on the upper surface of the housing 1.

[0032] During use, when it is necessary to weld the workpiece, pull the handle 605 upwards to drive the clamping rod 602 away from the clamping hole opened on the upper surface of the shell 1, and then push the protective cover 4 to move to the left along the shell 1 until the welding head 3 extends to a suitable length, and then engage with the clamping hole through the clamping rod 602 to fix the protective cover 4, and then weld the workpiece through the welding head 3, and at the same time start the exhaust fan 502 to draw the smoke and gas generated during welding into the dust box 501 through the exhaust pipe 504. After welding is completed, pull the handle 605 upwards until the clamping rod 602 is disengaged from the clamping hole, and then push the protective cover 4 to the right until the welding head 3 is completely located inside the protective cover 4, and then release the handle 605. Under the action of the spring 604, push the disc 603 to drive the clamping rod 602 to engage with the clamping hole opened on the upper surface of the shell 1 to fix the protective cover 4, thereby protecting the welding head 3 through the protective cover 4.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A welding device for welding parts with a welding head protection function, comprising a housing (1), a handle (2), a welding head (3) and a protective cover (4), wherein the handle (2) is fixedly mounted on the left side of the bottom of the housing (1), the welding head (3) is arranged inside the housing (1), and the protective cover (4) is slidably connected to the outside of the housing (1), characterized in that: A protective device is provided on the outer side of the housing (1); The protection device comprises a smoke removal unit and a fixing unit, the smoke removal unit being arranged at the bottom of the protection cover (4), and the fixing unit being arranged at the top of the protection cover (4); The smoke removal unit comprises a dust box (501), an exhaust fan (502), a fixing block (503), an exhaust pipe (504) and a wind hood (505); the dust box (501) is mounted on the left side of the bottom of the protective cover (4); the exhaust fan (502) is mounted on the left side of the dust box (501); the fixing block (503) is fixedly mounted on the right side of the bottom of the protective cover (4); the exhaust pipe (504) is connected to the right side of the dust box (501); and the wind hood (505) is mounted on one end of the exhaust pipe (504) away from the dust box (501).

2. A welding device for welding parts with welding head protection function according to claim 1, characterized in that: The fixing unit comprises a support frame (601), a clamping rod (602), a disc (603), a spring (604) and a handle (605); the support frame (601) is fixedly mounted on the left side of the top of the protective cover (4); the clamping rod (602) is mounted inside the support frame (601); the disc (603) is fixedly mounted on the outside of the clamping rod (602); one end of the spring (604) is fixedly mounted on the top of the clamping rod (602); and the handle (605) is fixedly mounted on the top of the clamping rod (602).

3. A welding device for welding parts with welding head protection function according to claim 1, characterized in that: A mounting hole is provided inside the fixing block (503), and the exhaust pipe (504) is mounted inside the mounting hole.

4. A welding device for welding parts with welding head protection function according to claim 1, characterized in that: The housing (1) is provided with sliding grooves on both the front and rear sides, the protective cover (4) is provided with protrusions on both the front and rear sides, and the protective cover (4) is slidably connected to the inside of the sliding grooves via the protrusions.

5. The welding device for welding parts with welding head protection function according to claim 1, characterized in that: The upper surface of the housing (1) is provided with a clamping hole having a diameter equal to that of the clamping rod (602), and the clamping holes are evenly spaced on the upper surface of the housing (1).

6. A welding device for welding parts with welding head protection function according to claim 2, characterized in that: The bottom of the spring (604) is fixedly connected to the top of the disc (603).

7. A welding device for welding parts with welding head protection function according to claim 2, characterized in that: The bottom of the clamping rod (602) is hemispherical.

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