Welding structure and welding device

Abstract

The utility model relates to a welding structure and a welding device.The welding structure comprises a welding head and a shell, a containing space is formed in the shell, the welding head is arranged in the containing space, an airflow channel is formed in the shell, and the airflow channel is connected with the containing space; the welding structure further comprises a smoke dust removing device, the smoke dust removing device is connected with the airflow channel, and the smoke dust removing device sucks or discharges gas. The smoke removing device is adopted for sucking or discharging gas, the gas flow channel is communicated with the containing space, smoke generated after welding of the welding head is sucked or discharged, and then a series of problems caused by the fact that the smoke gathers around the workpiece to be welded are avoided. The smoke dust removing device is adopted to suck or exhaust gas, so that smoke dust can be effectively prevented from being accumulated in a welding area, meanwhile, the effect of cleaning the welding environment is achieved, the welding quality can be improved, and welding defects are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of can manufacturing, and in particular to a welding structure and a welding device. Background Art

[0002] In the can manufacturing industry, the welding process is an indispensable part. Especially during the welding process of the handle and the can body, a large amount of welding fumes will be generated. After the handle and the can body are welded by the traditional welding process, the fumes often gather around the handle, resulting in the following problems:

[0003] The area around the handle turns black: The welding fumes adhere to the surface of the handle, causing black spots and affecting the appearance.

[0004] The pattern is damaged: For a can body with a pattern, the adhesion of the fumes will make the pattern blurred and reduce the aesthetic degree of the product.

[0005] To solve the above problems, the prior art usually adopts methods such as manual cleaning and sandblasting to remove the fumes, but these methods have the following deficiencies:

[0006] Low efficiency: Manual cleaning is time-consuming and laborious, and it is difficult to completely remove the fumes.

[0007] High cost: Methods such as sandblasting require additional equipment and operators, with high costs, and are not applicable to mature production lines, and the quality is also difficult to control.

[0008] Environmental protection problems: Methods such as sandblasting will cause secondary pollution and are not conducive to environmental protection.

[0009] Therefore, there is an urgent need for a technical solution to solve the fumes generated during the welding process and improve the efficiency and product quality of the can manufacturing process. Summary of the Invention

[0010] Aiming at the deficiencies of the prior art, the purpose of the present application is to provide a welding structure and a welding device, which can remove the fumes generated after welding.

[0011] The above object of the present application is achieved through the following technical solutions:

[0012] A welding structure includes a welding head and a housing. Among them, a receiving space is provided inside the housing, the welding head is arranged in the receiving space, an air flow channel is provided inside the housing, and the air flow channel is connected to the receiving space;

[0013] Furthermore, the welding structure further includes: a fume removal device, the fume removal device is connected to the air flow channel, and the fume removal device inhales or discharges gas.

[0014] With the above technical solution, the soot removal device can inhale or exhaust gas, thereby achieving the removal of soot and effectively preventing the accumulation of soot in the welding area.

[0015] This application is further configured such that there is a gap between the welding head and the accommodation space, and the air flow channel is connected to the gap.

[0016] This application is further configured such that the gap is annular and surrounds the welding head.

[0017] On the other hand, this application is further configured such that the welding head is movably disposed in the accommodation space, and the accommodation space includes a welding position for the welding head to perform welding and a placement position for the welding head to be placed in a non-working state;

[0018] Furthermore, when the welding head is located at the welding position, the welding head blocks / weakens the flow of air in the air flow channel and the air flow in the accommodation space;

[0019] Furthermore, when the welding head is located at the placement position, the air flow in the air flow channel and the air flow in the accommodation space are in communication.

[0020] This application is further configured such that the welding head and the soot removal device are electrically connected, and the soot removal device determines whether to start according to the position of the welding head.

[0021] This application is further configured such that a push rod is provided inside the housing, and the push rod pushes the welding head to move in the accommodation space.

[0022] This application is further configured such that a spring is also provided inside the housing, the spring surrounds the push rod, one end of the spring is connected to the welding head, and the other end of the spring is fixedly arranged.

[0023] With the above technical solution, the combination of the push rod and the spring enables the welding head to flexibly switch between different positions, facilitating the operator to adjust the position of the welding head according to the actual situation.

[0024] A welding device includes the above welding structure, and the number of the welding structures is two, and the two welding structures are arranged oppositely.

[0025] This application is further configured such that the welding device further includes a driving device, and the driving device drives the two welding devices to approach or move away from the workpiece to be welded synchronously.

[0026] This application is further configured such that at least a part of the workpiece to be welded extends into the accommodation space for welding.

[0027] In summary, the beneficial technical effects of this application are:

[0028] 1. This application uses a fume removal device to inhale or exhaust gas, which is connected to the accommodation space through an air flow channel, inhaling or exhausting the fumes generated after welding by the welding head, thereby avoiding a series of problems caused by the accumulation of fumes around the workpiece to be welded.

[0029] 2. Using the fume removal device to inhale or exhaust gas in this application can effectively prevent the accumulation of fumes in the welding area, while achieving the effect of cleaning the welding environment, and can also improve the welding quality and reduce the generation of welding defects. Description of the Drawings

[0030] Figure 1 is a cross-sectional view of the welding structure.

[0031] Figure 2 is an enlarged view of the gap.

[0032] Figure 3 is a schematic diagram of the welding structure and the push rod

[0033] Figure 4 is a cross-sectional view of the welding device.

[0034] Explanation of the reference numerals in the drawings: 1, welding structure; 11, welding head; 12, housing; 13, accommodation space; 14, air flow channel; 15, gap; 16, push rod; 17, spring; 2, workpiece to be welded; 21, barrel ear. Detailed Description of the Invention

[0035] The following further describes this application in detail with reference to the drawings.

[0036] As Figure 1 shown, a welding structure 1 includes a welding head 11, a housing 12 and a fume removal device. Among them, an accommodation space 13 is provided inside the housing 12, and the welding head 11 is arranged in the accommodation space 13. During welding, at least a part of the workpiece to be welded 2 extends into the accommodation space 13 for welding; an air flow channel 14 is provided inside the housing 12, the air flow channel 14 is connected to the accommodation space 13, the fume removal device is connected to the air flow channel 14, and the fume removal device inhales or exhausts gas.

[0037] Preferably, the fume removal device uses a fan; more preferably, the fume removal device uses a compressor to compress air to form an air flow to inhale or disperse fumes; the fume removal device can inhale or exhaust gas to form an air flow, through the air flow channel 14 and the accommodation space 13, and the air flow can flow to the welding head 11 to disperse or absorb the fumes generated after welding by the welding head 11.

[0038] In this way, the soot and dust are effectively removed, avoiding the shielding of the welding area. If manual operation is required, the welding operator can also observe the welding process more clearly, improving the welding efficiency, reducing the time and cost of cleaning the soot and dust, and enhancing the overall production efficiency.

[0039] In mechanized production, the soot and dust are effectively removed, the welding environment is relatively clean, and the welding quality can also be improved, reducing the generation of welding defects.

[0040] As Figure 2 shown, in a preferred embodiment, there is a gap 15 between the welding head 11 and the accommodation space 13. The air flow channel 14 is connected to the gap 15. The gap 15 is annular and surrounds the welding head 11.

[0041] The soot and dust removal device selects whether to be turned on and the degree of opening according to the working conditions of use. For example, it selects whether to be turned on and the degree of opening according to the concentration of the soot and dust. Preferably, a smoke sensor is set for detection; the degree of opening of the soot and dust removal device is set according to the welding material. Different welding materials generate different amounts of soot and dust. For example, the amount of soot and dust generated during stainless steel welding is larger than that during ordinary steel welding. Therefore, the soot and dust removal device should be set with a larger opening power when welding stainless steel.

[0042] In another preferred embodiment, the welding head 11 is movably arranged in the accommodation space 13. The accommodation space 13 includes a welding position for the welding head 11 to perform welding and a placement position for the welding head 11 to be placed in a non-working state, that is, the welding head 11 can move within the housing 12.

[0043] Furthermore, when the welding head 11 is located at the welding position, the welding head 11 blocks / weakens the flow of the air in the air flow channel 14 and the air in the accommodation space 13. Specifically, an interface is formed at the connection between the air flow channel 14 and the accommodation space 13. When the welding head 11 is located at the welding position, if the welding head 11 blocks part of the interface, at this time, the flow rate of the air will necessarily decrease; if the welding head 11 blocks the entire interface, then at this time, the air flow is blocked. In this way, during the welding process, the welding operation will not be affected by the air flow.

[0044] Furthermore, when the welding head 11 is located at the placement position, the air in the air flow channel 14 and the air in the accommodation space 13 flow through.

[0045] The welding head 11 is electrically connected to the smoke removal device, and the smoke removal device determines whether to start based on the position of the welding head 11. Such a scheme can achieve better welding effects. For example, before welding begins, the welding head 11 is located in the placement position, and the airflow in the airflow channel 14 and the accommodating space 13 can be opened to form a good ventilation environment and reduce the accumulation of smoke; during welding, the welding head 11 moves to the welding position to reduce the impact of the airflow on the welding operation; after welding, the welding head 11 returns to the placement position, and the airflow in the airflow channel 14 and the accommodating space 13 is opened again to centrally remove the smoke generated by welding.

[0046] like Figure 3 As shown, further, a push rod 16 is provided in the housing 12, and the push rod 16 pushes the welding head 11 to move in the accommodating space 13. The push rod 16 can be driven hydraulically or pneumatically.

[0047] Furthermore, a spring 17 is provided in the housing 12. The spring 17 is arranged around the push rod 16. One end of the spring 17 is connected to the welding head 11, and the other end of the spring 17 is fixed to facilitate the welding head 11 to be in the placed position when the welding head 11 is not working, that is, when the push rod 16 is not pushed.

[0048] like Figure 4 As shown, a welding device includes the above-mentioned welding structure 1, the number of the welding structures 1 is two, the two welding structures 1 are arranged opposite to each other, and the welding device is used to weld the barrel body and the barrel ear 21 of the can barrel. Figure 1 In the welding state, a portion of the barrel ear 21 extends into the accommodating space 13 for welding.

[0049] Furthermore, the welding device further comprises a driving device, which drives the two welding devices to synchronously approach or move away from the workpiece 2 to be welded.

[0050] The method of synchronously approaching or moving away from the workpiece 2 to be welded can specifically adopt the method of cooperating the electric ear cam, the drive motor and the electrode swing block disclosed in the application publication number: CN109108555A to drive the welding device to synchronously approach or move away from the workpiece 2 to be welded.

[0051] Alternatively, one worm gear is connected to two turbines at the same time, and the two turbines are respectively connected to two welding devices in a transmission manner so that the welding devices can synchronously approach or move away from the workpiece 2 to be welded.

[0052] Alternatively, a programmable logic controller can be used to control the cylinder or hydraulic cylinder to move synchronously, so as to drive the welding device to move synchronously toward or away from the workpiece 2 to be welded.

[0053] The embodiments of this specific implementation manner are all preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. A welding structure, comprising a welding head (11) and a housing (12), characterized in that, An accommodation space (13) is provided inside the housing (12), the soldering head (11) is arranged inside the accommodation space (13), an air flow channel (14) is provided inside the housing (12), and the air flow channel (14) is connected to the accommodation space (13); The soldering structure (1) further includes a fume removal device, the fume removal device is connected to the air flow channel (14), and the fume removal device inhales or discharges gas.

2. The welding structure according to claim 1, wherein A gap (15) is provided between the soldering head (11) and the accommodation space (13), and the air flow channel (14) is connected to the gap (15).

3. The welding structure according to claim 2, characterized in that, The gap (15) is annular, and the gap (15) surrounds the soldering head (11).

4. The welding structure according to claim 1, wherein The soldering head (11) is movably arranged inside the accommodation space (13), and the accommodation space (13) includes a soldering position for the soldering head (11) to perform soldering and a placement position for the soldering head (11) to be placed in a non-working state; When the soldering head (11) is located at the soldering position, the soldering head (11) blocks / weakens the flow of the air flow in the air flow channel (14) and the air flow in the accommodation space (13); When the soldering head (11) is located at the placement position, the air flow in the air flow channel (14) and the air flow in the accommodation space (13) are in communication.

5. The welding structure according to claim 4, characterized in that, The soldering head (11) is electrically connected to the fume removal device, and the fume removal device determines whether to start according to the position of the soldering head (11).

6. The welding structure according to claim 4, wherein A push rod (16) is provided inside the housing (12), and the push rod (16) pushes the soldering head (11) to move inside the accommodation space (13).

7. The welding structure according to claim 6, characterized in that, A spring (17) is further provided inside the housing (12), the spring (17) is arranged around the push rod (16), one end of the spring (17) is connected to the soldering head (11), and the other end of the spring (17) is fixedly arranged.

8. A welding device, comprising the welding structure (1) according to any one of claims 1 to 7, characterized in that, The number of the soldering structures (1) is two, and the two soldering structures (1) are arranged oppositely.

9. The welding device according to claim 8, characterized in that, A driving device is further included, and the driving device drives the two soldering devices to approach or move away from the workpiece to be soldered (2) synchronously.

10. The welding device according to claim 9, characterized in that, At least a part of the workpiece to be soldered (2) extends into the accommodation space (13) for soldering.

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