Blowing clamp for welding

Abstract

The utility model provides a blowing clamp for welding, and belongs to the field of new energy battery processing. The clamp comprises a box body and an air inlet pipe joint, the box body is of a rectangular structure, an air inlet hole matched with the air inlet pipe joint is formed in the outer side wall of the box body, the air inlet pipe joint penetrates through the air inlet hole, a machining groove is formed in the middle of the box body in the vertical direction, and an air blowing hole is formed in the groove wall of the machining groove and communicated with the air inlet hole 3. By adopting the blowing clamp for welding, provided by the embodiment of the utility model, the problem of lower welding quality caused by non-uniform blowing airflow in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the field of new energy battery processing, in particular to a blowing fixture for welding. Background Art

[0002] In each process of processing and forming new energy batteries, a welding process is required, such as welding of pole tabs and pole columns, welding of pole tabs and connecting pieces, etc. During the welding process, a protective gas needs to be introduced into the welding part to prevent oxidation of the welding part during welding.

[0003] In the prior art, the method of introducing a protective gas into the welding part is usually to add blow holes to the dust removal device arranged at the top of the welding part and blow the protective gas towards the welding part. Since there is a certain distance between the blow holes and the welding part, it is difficult to control the flow rate of the blown gas. A smaller flow rate may not protect the welding part, and a larger flow rate may cause waste. Moreover, due to the certain distance between the blow holes and the welding part, the blowing air flow is uneven.

[0004] In the prior art, for the method of introducing a protective gas into the welding part, the uneven blowing air flow results in low welding quality. Summary of the Utility Model

[0005] An embodiment of the utility model provides a blowing fixture for welding, which can solve the problem of low welding quality caused by uneven blowing air flow in the prior art. The technical solution is as follows:

[0006] A blowing fixture for welding includes: a box body and an air inlet pipe joint.

[0007] The box body is of a rectangular structure. An air inlet hole matching the air inlet pipe joint is formed on the outer side wall of the box body. The air inlet pipe joint penetrates through the air inlet hole. A processing groove is formed in the middle of the box body along the vertical direction. Blow holes are formed on the groove wall of the processing groove, and the blow holes are communicated with the air inlet hole.

[0008] Optionally, a plurality of blow holes are provided, and the plurality of blow holes are arranged annularly along the groove wall of the processing groove, and the plurality of blow holes are evenly spaced.

[0009] Optionally, the groove wall of the processing groove is an inclined surface.

[0010] Optionally, two air inlet pipe joints are provided, and two air inlet holes are provided.

[0011] Optionally, the two air inlet holes are respectively arranged on opposite side surfaces of the box body, and the two air inlet holes are located at the diagonal corners of the box body.

[0012] Optionally, it further includes a plug, which is matched with the air inlet hole. Four air inlet holes are opened on the opposite side surfaces of the box body, and the air inlet holes on each side surface of the box body are arranged at intervals.

[0013] Optionally, a valve is provided on the air inlet pipe joint.

[0014] Optionally, an annular gasket is provided at the bottom of the box body.

[0015] The beneficial effects brought by the technical solution provided by the embodiment of the present invention at least include:

[0016] A blowing fixture for welding provided by an embodiment of the present invention places the box body at the welding position, so that the processing groove surrounds the welding position. The shielding gas is transported to the blowing hole through the air inlet hole via the air inlet pipe joint, so that the welding position in the processing groove is completely covered by the shielding gas, so that the welding position is fully surrounded by the shielding gas during welding, thereby ensuring that the welding position will not be oxidized and effectively solving the problem of low welding quality caused by uneven blowing air flow in the prior art. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the fixture provided by the embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the box body provided by the embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of one side of the overall structure of the fixture provided by the embodiment of the present invention.

[0021] In the figure: 1 - box body; 2 - air inlet pipe joint; 3 - air inlet hole; 4 - processing groove; 5 - blowing hole; 6 - plug; 7 - valve; 8 - annular gasket; 9 - workpiece to be processed. Detailed Embodiments

[0022] To make the purpose, technical solutions and advantages of the present invention clearer, the following will further describe the embodiments of the present invention in detail in conjunction with the drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the fixture provided by the embodiment of the present invention; Figure 2It is a schematic structural diagram of the box body provided by an embodiment of the present utility model; Figure 3 It is a schematic diagram of one side of the overall structure of the fixture provided by an embodiment of the present utility model. As Figures 1 to 3 shown, a blowing fixture for welding includes: a box body 1 and an air inlet pipe joint 2. The box body 1 is of a rectangular structure. An air inlet hole 3 matching the air inlet pipe joint 2 is provided on the outer side wall of the box body 1. The air inlet pipe joint 2 penetrates through the air inlet hole 3. A processing groove 4 is vertically provided in the middle of the box body 1. Air blowing holes 5 are provided on the groove wall of the processing groove 4. The air blowing holes 5 are communicated with the air inlet hole 3.

[0024] Exemplarily, in an embodiment of the present utility model, as Figure 1 shown, the box body 1 is arranged above the workpiece 9 to be processed, and the processing groove 4 is aligned with the welding part, so that the welding part is surrounded by the processing groove 4. One end of the air inlet pipe joint 2 is connected to an external protective gas storage tank, and the other end is inserted into the air inlet hole 3. The external protective gas storage tank transports the protective gas into the air inlet hole 3 through the air inlet pipe joint 2. The protective gas is then transported to the air blowing holes 5 through the air inlet hole 3, and the protective gas is transported to the welding part surrounded inside the processing groove 4. Compared with the prior art, where the protective gas is directly blown in from a place far away from the welding part, in the blowing fixture of the embodiment of the present utility model, the welding part is surrounded by the processing groove 4, so that after the protective gas is discharged from the air blowing holes 5, it can stay at the welding part inside the processing groove 4, forming a protective area at the welding part, thereby protecting the welding area. After transporting a stable flow of protective gas to the welding part through the air blowing holes 5, laser welding can be performed on the welding part from the top opening of the processing groove 4.

[0025] A blowing fixture for welding provided by an embodiment of the present utility model places the box body 1 at the welding part, so that the processing groove 4 surrounds the welding part. The protective gas is transported to the air blowing holes 5 through the air inlet hole 3 via the air inlet pipe joint 2, so that the welding part inside the processing groove 4 is completely covered by the protective gas, so that the welding part is fully surrounded by the protective gas during welding, thereby ensuring that the welding part will not be oxidized and effectively solving the problem of low welding quality caused by uneven blowing air flow in the prior art.

[0026] Optionally, it is characterized in that a plurality of air blowing holes 5 are provided, and the plurality of air blowing holes 5 are annularly arranged along the groove wall of the processing groove 4, and the plurality of air blowing holes 5 are evenly spaced.

[0027] Exemplarily, in an embodiment of the present utility model, a plurality of air blowing holes 5 are provided, and the plurality of air blowing holes 5 are evenly spaced and annularly arranged on the groove wall of the processing groove 4, which can make the protective gas blown into the processing groove 4 more uniform, so that the formed protective area is more stable, and further improving the welding quality of the blowing fixture for welding.

[0028] Optionally, the groove wall of the processing groove 4 is an inclined surface.

[0029] Exemplarily, in the embodiment of the present invention, the groove wall of the processing groove 4 is set as an inclined surface. On the one hand, during laser welding, the emitted laser is not necessarily perpendicular to the workpiece 9 to be processed, and the laser usually may form a certain angle with the workpiece 9. In order to prevent the processing groove 4 from interfering with laser welding, by setting the groove wall of the processing groove 4 as an inclined surface, it is avoided that the laser irradiates on this fixture during the laser welding process. On the other hand, when drilling the air blowing holes 5 on the processing groove 4, it is necessary to drill holes in the groove wall from one side inside the processing groove 4. When the groove wall of the processing groove 4 is vertically arranged, the processing difficulty is relatively large. By setting the groove wall of the processing groove 4 as an inclined surface, it can be more convenient to manufacture this fixture during production, thereby reducing the production cost.

[0030] Optionally, two air inlet pipe joints 2 are provided, and two air inlet holes 3 are provided.

[0031] Exemplarily, in the embodiment of the present invention, by providing two air inlet pipe joints 2 and two air inlet holes 3, the protective gas can be simultaneously transported to the two air inlet holes 3 through the two air inlet pipe joints 2, so that a sufficient amount of protective gas can be more stably transported to the welding part, further improving the welding quality of this welding air blowing fixture.

[0032] Optionally, the two air inlet holes 3 are respectively arranged on the opposite side surfaces of the box body 1, and the two air inlet holes 3 are located at the diagonal corners of the box body 1.

[0033] Exemplarily, in the embodiment of the present invention, by arranging two air inlet holes 3 at the two diagonal corners of the box body 1, when the protective gas is introduced, it can flow more uniformly to each air blowing hole 5, so that the protective gas in the welding part is more uniform, thereby further improving the welding quality of this welding air blowing fixture.

[0034] Optionally, it further includes a plug 6, the plug 6 is matched with the air inlet hole 3, four air inlet holes 3 are opened on the opposite side surfaces of the box body 1, and the air inlet holes 3 on each side surface of the box body 1 are arranged at intervals.

[0035] Exemplarily, in the embodiment of the present invention, four air inlet holes 3 are opened on the opposite side surfaces of the box body 1. When welding the battery, it may be that the installation of the air inlet pipe joint 2 is interfered by other battery parts, so that the air inlet hole 3 at a certain position cannot be inserted with the air inlet pipe joint 2. At this time, a suitable position can be selected from the four air inlet holes 3 to insert the air inlet pipe joint 2, and for the air inlet hole 3 without inserting the air inlet pipe joint 2, the plug 6 is used to block the air inlet hole 3, thereby improving the versatility of this welding air blowing fixture.

[0036] Optionally, a valve 7 is provided on the intake pipe joint 2.

[0037] Exemplarily, in the embodiment of the present invention, by providing a valve 7 on the intake pipe joint 2, the flow rate of the shielding gas input to the welding part can be controlled. When the gas flow rate is too large, waste may occur; when the gas flow rate is too small, the protection of the welding part is insufficient. By providing the valve 7, the flow rate of the shielding gas transported to the welding part can be adjusted, thereby improving the operation convenience of this blowing fixture for welding.

[0038] Optionally, an annular gasket 8 is provided at the bottom of the box body 1.

[0039] Exemplarily, in the embodiment of the present invention, since this fixture needs to be placed on the workpiece 9 every time welding is performed, hard contact often occurs between the box body 1 and the workpiece 9. By providing an annular gasket 8 at the bottom of the box body 1, when the box body 1 and the workpiece 9 are installed, the hard contact is converted into soft contact, thereby protecting the workpiece 9 and improving the practicality of this blowing fixture for welding. At the same time, by providing the annular gasket 8, the box body 1 contacts the workpiece 9 through the annular gasket 8, reducing the contact area and the possibility of voids occurring at the contact surface, so that the box body 1 can better press the workpiece 9, improving the stability of this blowing fixture for welding.

[0040] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second" and similar terms used in the description and claims of the patent application of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "one" do not indicate a quantity limitation, but mean that there is at least one. The terms such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0041] The above are only optional embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A blowing fixture for welding, characterized in that: include: Box body (1) and air inlet pipe joint (2), The box body (1) is of a rectangular structure. An air inlet hole (3) matching the air inlet pipe joint (2) is provided on the outer wall of the box body (1). The air inlet pipe joint (2) is passed through the air inlet hole (3). A processing groove (4) is provided in the middle of the box body (1) in a vertical direction. An air blowing hole (5) is provided on the groove wall of the processing groove (4). The air blowing hole (5) is connected to the air inlet hole (3).

2. A blowing fixture for welding according to claim 1, characterized in that: A plurality of the blowing holes (5) are provided, and the plurality of the blowing holes (5) are arranged in a ring shape along the groove wall of the processing groove (4), and the plurality of the blowing holes (5) are evenly spaced.

3. A blowing fixture for welding according to claim 1, characterized in that: The groove wall of the processing groove (4) is an inclined surface.

4. A blowing fixture for welding according to claim 1, characterized in that: Two air intake pipe joints (2) are provided, and two air intake holes (3) are provided.

5. A blowing fixture for welding according to claim 4, characterized in that: The two air inlet holes (3) are respectively arranged on two opposite side surfaces of the box body (1), and the two air inlet holes (3) are located at diagonally opposite corners of the box body (1).

6. A blowing fixture for welding according to claim 1, characterized in that: It also includes a plug (6), which matches the air inlet hole (3). Four air inlet holes (3) are provided on two opposite sides of the box body (1), and the air inlet holes (3) on each side of the box body (1) are arranged at intervals.

7. The welding blowing fixture according to claim 1, characterized in that: The air inlet pipe joint (2) is provided with a valve (7).

8. The welding blowing fixture according to claim 1, characterized in that: An annular gasket (8) is provided at the bottom of the box body (1).

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