A gas shielded welding process

Abstract

The present application relates to thermos cup production technical field, especially a kind of blow protection welding process, comprising the following steps: S1.welding parts are placed in blow structure, and welding parts are clamped by blow structure;S2.welding parts are vertically adhered with cup body by lifting structure to drive blow structure to descend;S3.welding parts are adhered with cup body by welding equipment and are rotated welding, and in the process of rotating welding, the position of welding is blown all around by blow structure;S4.welding is completed, and cup body with welding parts is obtained.It is to make welding parts on cup body, by using blow structure, on one hand, welding parts can keep vertical, which is conducive to keeping the consistency and alignment accuracy of welding, on the other hand, all-around blowing can be carried out simultaneously during welding, to protect the welding line of welding parts, and improve the welding quality.

Description

Technical Field

[0001] This invention relates to the field of thermos cup manufacturing technology, and in particular to a blow-protected welding process. Background Technology

[0002] Some insulated cups have handles welded to the body for ease of use. Traditional handle welding involves fixing the cup in a fixture, placing the handle on the cup body, and positioning one end of the handle against a guide rail. This guide rail determines the handle's height, but there are no positioning lines on the sides, making it impossible to ensure the handle is vertical. Furthermore, the welding process requires high-quality weld surfaces, free from oxidation and discoloration. While off-axis air blowing is commonly used, it only reduces oxidation on the top and bottom edges of the handle, failing to address the inner edges and corners. The finished laser-etched points may turn yellow or black, and off-axis blowing can easily collide with the air tube, causing unstable blowing angles and preventing full-circumference welding of the handle. Additionally, traditional handle welding is a separate process: welding the rim first to secure the handle to the body, then welding the bottom, resulting in low production efficiency. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an air-blowing protective welding process, which, when welding the parts to be welded onto the cup body, uses an air-blowing structure to, on the one hand, keep the welding part vertical, which is beneficial to maintain the consistency and alignment accuracy of the welding; on the other hand, during welding, air can be blown around the entire circumference simultaneously to protect the welding line of the parts to be welded and improve the welding quality.

[0004] The present invention solves the above-mentioned technical problems through the following technical means:

[0005] A gas-shielded welding process includes the following steps:

[0006] S1. Place the part to be welded in the air blowing structure, and clamp the part to be welded by the air blowing structure;

[0007] S2. The lifting structure drives the air blowing structure to descend, making the part to be welded perpendicular to the cup body;

[0008] S3. Rotary welding is performed on the part to be welded and the cup body using welding equipment. During the rotary welding process, air is blown around the welding position through an air blowing structure.

[0009] S4. After welding is completed, the air blowing structure releases the part to be welded, and the lifting structure drives the air blowing structure to rise, thus obtaining the cup body with the part to be welded.

[0010] Based on the above technical means, the cup body is first placed on the nylon seat of the workbench, and then the part to be welded is clamped in the air blowing structure. After the lifting structure lowers the part to be welded and the air blowing structure, the part to be welded can be perpendicularly attached to the cup body, and the attachment position is fixed. Then, welding is carried out by the welding equipment. During welding, the welding equipment blows air 360° around the welding area through the air blowing structure, which can protect the welding line between the part to be welded and the cup body and improve the welding quality. After welding one end of the part to be welded, the welding equipment rotates to the other end to weld the other end of the part to be welded, realizing the completion of welding on the same equipment, which can effectively improve production efficiency.

[0011] Based on the above scheme, this application also makes the following optimizations:

[0012] Preferably, in step S1, when the air blowing structure clamps the part to be welded, the gap between the part to be welded and the inside of the air blowing structure is 0.5-2.4 mm.

[0013] According to the above technical means, by leaving a gap between the part to be welded and the air blowing structure, it is convenient for the inert gas to flow in all directions.

[0014] Preferably, in step S1, the distance between the air blowing end of the air blowing structure and the welding end of the component to be welded is 10-30mm.

[0015] According to the above technical means, by leaving a distance between the air blowing end and the welding end of the component to be welded, it is convenient to weld the component to be welded to the cup body.

[0016] Preferably, in step S3, during the full-circumference blowing, an inert gas is blown through the blowing structure, and the flow rate of the inert gas is 0.6-0.8 m³ / s. 3 / h.

[0017] Based on the above technical means, the inert gas can protect the welded parts between the handle and the cup body without wasting inert gas.

[0018] Preferably, the air blowing structure includes a clamping structure, a first clamp, a second clamp, and a connector. The clamping structure is assembled on the lifting structure. The first clamp is fixedly connected to one side of the clamping structure, and the second clamp is fixedly connected to the other side of the clamping structure. The connector is respectively disposed on the first clamp and the second clamp.

[0019] According to the above technical means, the clamping structure is used to drive the first clamp, the second clamp and the connector to rise and fall, and to enable the first clamp and the second clamp to clamp the part to be welded, control the front and side of the part to be welded, and keep the part to be welded vertical when it contacts the cup body; and then connects to the external gas source through the connector, so that inert gas can enter the first clamp and the second clamp.

[0020] Preferably, the first clamp and the second clamp have the same structure. The first clamp includes a clamp body and an air blowing part. The clamp body has a contour cavity. The air blowing part is integrally formed at both ends of the clamp body. The air blowing part is provided with an air gathering groove and an air outlet groove. The contour cavity is connected to the air gathering groove and the air outlet groove. The connector is provided on both sides of the clamp body and is connected to the contour cavity.

[0021] According to the above technical means, after the inert gas enters the first fixture and the second fixture, it can blow air circumferentially through the gas outlet groove at the welding area between the component to be welded and the cup body, thereby protecting the welding line between the component to be welded and the cup body and improving the welding quality.

[0022] Preferably, the clamp body has sealing grooves on both sides of the contour cavity, and sealing rings are provided in the sealing grooves.

[0023] According to the above-mentioned technical means, when the first clamp and the second clamp clamp the parts to be welded, the sealing performance of the two clamps is improved and the leakage of inert gas is reduced.

[0024] Preferably, the clamping structure includes a mounting base, a clamping cylinder, and a clamping element. The mounting base is slidably connected to the lifting structure, the clamping cylinder is fixedly connected to the mounting base, and the clamping element is connected to the output shaft of the clamping cylinder.

[0025] Based on the above technical means, the clamping structure can clamp or release the first clamp and the second clamp when it is working, and can drive the clamping structure, the first clamp and the second clamp to rise and fall when the lifting structure is working.

[0026] Preferably, the clamping component includes a first transmission plate, a second transmission plate, and a clamping plate. The first transmission plate is symmetrically connected to the output shafts on both sides of the clamping cylinder. The second transmission plate is fixedly connected to the first transmission plate. The clamping plate is fixedly connected to the second transmission plate. The first clamp and the second clamp are respectively connected to the two clamping plates.

[0027] Based on the above technical means, the clamping cylinder can drive the two clamping plates to clamp or loosen when working.

[0028] Preferably, the lifting structure includes a push-pull cylinder and a guide rail. The push-pull cylinder is fixedly connected to the worktable, and the guide rail is fixedly connected to the worktable and located on one side of the push-pull cylinder. The air blowing structure is slidably mounted on the guide rail, and the output shaft of the push-pull cylinder is fixedly connected to the bottom of the air blowing structure.

[0029] Based on the above technical means, when the lifting structure is working, it can drive the air blowing structure to rise and fall, which is conducive to controlling the contact mode between the part to be welded and the cup body, and ensuring the positioning height and verticality of the handle.

[0030] The present application, which adopts the above-described scheme, has the following beneficial effects;

[0031] 1. Through the tooling design of the first and second fixtures, during air-blowing protection welding, full-circumferential air blowing can be achieved simultaneously with welding, thereby protecting the weld line between the part to be welded and the cup body and improving the welding quality. Compared with the existing off-axis air blowing, it can achieve 360° full-circumferential air blowing without touching the air pipe, thus making the air blowing angle more stable and comprehensive, resulting in better welding quality. Moreover, when the part to be welded contacts the cup body, the traditional single-sided contact is changed to simultaneous front and side contact, which is beneficial for the positioning and verticality of the part to be welded.

[0032] 2. By welding one end of the component to be welded to the cup body, and then rotating the welding equipment to weld the other end of the component to be welded to the cup body, the components to be welded can be completed on the same equipment. This can effectively improve production efficiency, maintain welding consistency and alignment accuracy, and further improve welding quality.

[0033] 3. With this application, welding parts such as handles and grips can be welded to the cup body in one go, and air can be blown around the entire circumference during the welding process, which improves the welding quality and enhances the applicability. Attached Figure Description

[0034] This application can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0035] Figure 1 This is a flowchart of the gas-blowing shielded welding process in the embodiments of this application;

[0036] Figure 2 This is a schematic diagram of the welding apparatus in an embodiment of this application;

[0037] Figure 3 This is a partial perspective structural diagram of the welding device in the embodiments of this application when the first clamp and the second clamp are brought together;

[0038] Figure 4This is a top view of the first and second clamps in the welding apparatus of this application embodiment;

[0039] Figure 5 This is a schematic diagram of the assembly structure of the first clamp and the component to be welded in the welding device in this application embodiment;

[0040] Figure 6 This is a schematic diagram of the structure of the first clamp in the welding device in the embodiments of this application;

[0041] Figure 7 This is a partial perspective view of the welding device in the embodiments of this application, showing the components to be welded assembled on the first and second clamps.

[0042] Explanation of key component symbols:

[0043] 1. Workbench; 11. Nylon seat; 12. Cup body; 2. Lifting structure; 21. Push-pull cylinder; 22. Guide rail; 3. Air blowing structure; 31. Mounting seat; 32. Clamping cylinder; 33. First transmission plate; 34. Second transmission plate; 35. Clamping plate; 36. Connector; 37. First fixture; 370. Fixture body; 371. Threaded groove; 3711. Small hole; 372. Air blowing end; 3721. Air gathering groove; 3722. Air outlet groove; 373. Contouring cavity; 3731. Gap; 374. Sealing groove; 38. Second fixture; 4. Part to be welded. Detailed Implementation

[0044] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0045] In the figures of this invention, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the figures are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances. In the description of this application, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the actual number, shape, and size of the components in the actual implementation. In the actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0047] like Figure 2 As shown in the illustration, this application discloses a welding apparatus, including a worktable 1, a cup body 12, a component 4 to be welded, and welding equipment. A lifting structure 2 and an air-blowing structure 3 are mounted on the worktable 1. The lifting structure 2 is fixedly mounted on the worktable 1, and the air-blowing structure 3 is mounted on the lifting structure 2, causing the air-blowing structure 3 to rise and fall via the lifting structure 2. The cup body 12 is placed on the worktable 1 and directly corresponds to the air-blowing structure 3, facilitating welding between the cup body 12 and the component 4 to be welded. The component 4 to be welded is enclosed within the air-blowing structure 3. The air-blowing structure 3 provides full-circumference air blowing when the component 4 and the cup body 12 are welded using the welding equipment, thereby protecting the weld line between the handle and the cup body 12 and improving the welding quality.

[0048] In this embodiment, a nylon base 11 is fixedly installed on the workbench 1 by bolts, and the cup body 12 is placed inside the nylon base 11 to fix the position of the cup body 12. The component 4 to be welded can be a handle or other components, such as a handle or other components that can be welded to the cup body.

[0049] In this embodiment, the welding equipment is a welding equipment capable of rotating and moving the welding part, and it is existing technology, so it will not be described in detail here.

[0050] In some implementations, such as Figure 2As shown, the lifting structure 2 includes a push-pull cylinder 21 and a guide rail 22. The push-pull cylinder 21 is fixedly connected to the worktable 1 by bolts, and the guide rail 22 is fixedly connected to the worktable 1 by bolts and is located on one side of the push-pull cylinder 21. The air blowing structure 3 is slidably mounted on the guide rail 22, and the output shaft of the push-pull cylinder 21 is fixedly connected to the bottom of the air blowing structure 3 by bolts. When the push-pull cylinder 21 is working, it can drive the air blowing structure 3 to rise and fall along the guide rail 22.

[0051] In some implementations, such as Figure 2-7 As shown, the air-blowing structure 3 includes a clamping structure, a first clamp 37, a second clamp 38, and a connector 36. The clamping structure is slidably mounted on the guide rail 22. The first clamp 37 is bolted to one side of the clamping structure, and the second clamp 38 is bolted to the other side. When the clamping structure is working, it can drive the first clamp 37 and the second clamp 38 to clamp together, thereby enclosing the part 4 to be welded within the first clamp 37 and the second clamp 38. This allows the part 4 to be welded to simultaneously abut against the front and side, which is beneficial for the positioning of the part 4 to be welded and its perpendicularity to the cup body 12. The connector 36 is respectively provided on the first clamp 37 and the second clamp 38. After connecting an external air source, it is used to blow inert gas through the first clamp 37 and the second clamp 38 to the welding area between the part 4 to be welded and the cup body 12 around the entire circumference.

[0052] In this embodiment, as Figure 2 As shown, the clamping structure includes a mounting base 31, a clamping cylinder 32, and a clamping element. The mounting base 31 is slidably connected to the guide rail 22, the clamping cylinder 32 is fixedly connected to the mounting base 31 by bolts, and the clamping element is connected to the output shaft of the clamping cylinder 32, so that when the clamping cylinder 32 is working, it can drive the clamping element to move closer or further away, thereby driving the air blowing structure 3 to clamp or release the part 4 to be welded.

[0053] In this embodiment, two clamping cylinders 32 are provided, and the output shafts of the two clamping cylinders 32 are in opposite directions, so as to drive the clamping parts to move closer or further apart.

[0054] In this embodiment, the clamping components include a first transmission plate 33, a second transmission plate 34, and a clamping plate 35. The first transmission plate 33 is fixedly connected to the output shaft of each of the two clamping cylinders 32. The second transmission plate 34 is fixedly connected to the inner front part of the first transmission plate 33 by bolts. The clamping plate 35 is fixedly connected to the bottom of the second transmission plate 34 by bolts. The first clamp 37 and the second clamp 38 are respectively bolted to the two clamping plates 35, so that when the clamping cylinders 32 are working, they can drive the first clamp 37 and the second clamp 38 to clamp or release.

[0055] In some embodiments, such as Figure 4-7As shown, the first clamp 37 and the second clamp 38 have the same structure. The following description uses the first clamp 37 as an example: The first clamp 37 includes a clamp body 370 and an air blowing part 372. The clamp body 370 has a contour cavity 373 for mounting the part 4 to be welded. The air blowing part 372 is integrally formed at both ends of the clamp body 370. The air blowing part 372 is provided with an air gathering groove 3721 and an air outlet groove 3722. The contour cavity 373 is connected to the air gathering groove 3721 and the air outlet groove 3722, so that the inert gas can be discharged circumferentially from the air outlet groove 3722 under the action of the air gathering groove 3721. This allows the inert gas to blow circumferentially at the welding position when the part 4 to be welded is welded to the cup body 1212. The connector 36 is threaded to the left and right sides of the fixture body 370 through the threaded groove 371 and communicates with the contour cavity 373, so that the inert gas can enter the contour cavity 373 and thus enter the gas gathering groove 3721.

[0056] In this embodiment, in order to make the inert gas more evenly distributed when it enters the contour cavity 373, multiple small holes 3711 are distributed on the fixture body 370 at the bottom of the threaded groove 371, and each small hole 3711 is connected to the contour cavity 373.

[0057] In this embodiment, as Figure 4-5 As shown, in order to avoid or reduce the leakage of inert gas when the first clamp 37 and the second clamp 38 are clamped, the clamp body 370 is provided with sealing grooves 374 on the upper and lower sides of the contour cavity 373, and a sealing ring is provided in the sealing groove 374.

[0058] like Figure 1 As shown in the embodiments, this application also discloses an air-blowing shielded welding process. The welding apparatus of the above embodiments includes the following steps:

[0059] S0. Place the cup body 12 on the nylon base 11 so that the mouth of the cup body 12 fits against one end of the nylon base 11;

[0060] S1. Place the component 4 to be welded in the contour cavity 373 of the first clamp 37 or the second clamp 38, so that the gap 3731 between the component 4 to be welded and the inner wall of the contour cavity 373 is 0.8-1.2mm. Then, control the two clamping cylinders 32 to work. When the clamping cylinders 32 work, they drive the two clamping plates 35 to move closer to the middle, clamping the first clamp 37, the second clamp 38 and the component 4 to be welded. When the first clamp 37 and the second clamp 38 clamp the component 4 to be welded, the component 4 to be welded is located directly above the cup body 12, and the welding end of the component 4 to be welded is located outside the first clamp 37 and the second clamp 38, so that the distance between the air blowing part 372 and the welding end of the component 4 to be welded is 12-20mm.

[0061] S2. Start the push-pull cylinder 21. The output shaft of the push-pull cylinder 21 drives the mounting base 31 to descend on the guide rail 22, thereby driving the first clamp 37, the second clamp 38, the clamping cylinder 32 and the part to be welded 4 to descend, so that the part to be welded 4 is perpendicularly attached to the cup body 12.

[0062] S3. Start the external gas source. The gas source delivers inert gas to the contour cavity 373 of the first clamp 37 and the second clamp 38 through connector 36. The inert gas passes through the gap 3731 between the part to be welded 4 and the contour cavity 373 and enters the gas gathering groove 3721. Then, it is blown out from the gas gathering groove 3721 and out of the gas outlet groove 3722. When the part to be welded 4 and the cup body 12 are welded by the welding equipment, full-circumference blowing is performed. During this process, after the welding equipment rotates and welds one connection end between the part to be welded 4 and the cup body 12, it moves to the other connection end between the part to be welded 4 and the cup body 12 and rotates and welds again. The flow rate of the inert gas is 0.6-0.8 m³ / h. 3 / h;

[0063] S4. After welding is completed, the output shafts of the two clamping cylinders 32 move in opposite directions, releasing the first clamp 37 and the second clamp 38, so that the cup body 12 and the part to be welded 4 remain on the nylon seat 11. The push-pull cylinder 21 drives the clamping structure, the first clamp 37 and the second clamp 38 to rise, and the cup body 12 with the part to be welded 4 is obtained.

[0064] The above provides a detailed description of the gas-blowing protective welding process provided by the present invention. The specific embodiments are described only to aid in understanding the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0065] It should be noted that: for experimental steps or conditions not specified in the examples, the procedures and conditions described in conventional experimental procedures in the literature of this art can be followed. Reagents or instruments whose manufacturers are not specified are all commercially available conventional reagent products.

[0066] The above examples are provided to better understand the present invention and are not limited to the preferred embodiments described. They do not constitute a limitation on the content and scope of protection of the present invention. Any product that is the same as or similar to the present invention, derived by anyone under the guidance of the present invention or by combining the features of the present invention with other prior art, falls within the scope of protection of the present invention.

Claims

1. A gas-blowing shielded welding process, characterized in that, Includes the following steps: S1. Place the component to be welded in the air-blowing structure (3) and clamp the component to be welded by the air-blowing structure (3); the air-blowing structure (3) includes a clamping structure, a first clamp (37), a second clamp (38), and a connector (36). The clamping structure is assembled on the lifting structure (2). The first clamp (37) is fixedly connected to one side of the clamping structure, and the second clamp (38) is fixedly connected to the other side of the clamping structure. The connector (36) is respectively disposed on the first clamp (37) and the second clamp (38); the first clamp (37) and the second clamp (38) are clamped together. 8) The first clamp (37) has the same structure, including a clamp body (370) and an air blowing part (372). The clamp body (370) has a contour cavity (373). The air blowing part (372) is integrally formed at both ends of the clamp body (370). The air blowing part (372) is provided with an air gathering groove (3721) and an air outlet groove (3722). The contour cavity (373) is connected to the air gathering groove (3721) and the air outlet groove (3722). The connector (36) is provided on both sides of the clamp body (370) and is connected to the contour cavity (373). S2. The lifting structure (2) drives the air blowing structure (3) to descend, so that the part to be welded is perpendicularly attached to the cup body (12); S3. Rotary welding is performed on the part to be welded and the cup body (12) by welding equipment. During the rotational welding process, air is blown around the welding position by the air blowing structure (3). S4. After welding is completed, the air blowing structure (3) releases the part to be welded, and the lifting structure (2) drives the air blowing structure (3) to rise, so as to obtain the cup body (12) with the part to be welded.

2. The gas-blowing shielded welding process according to claim 1, characterized in that, In step S1, when the air blowing structure (3) is clamping the part to be welded, the gap (3731) between the part to be welded and the inside of the air blowing structure (3) is 0.5-2.4mm.

3. The gas-blowing shielded welding process according to claim 1 or 2, characterized in that, In step S1, the distance between the air blowing end of the air blowing structure (3) and the welding end of the component to be welded is 10-30mm.

4. The gas-blowing shielded welding process according to claim 1 or 2, characterized in that, In step S3, during full-circumference blowing, inert gas is blown through the blowing structure (3), and the flow rate of the inert gas is 0.6-0.8 m³ / h.

5. The gas-blowing shielded welding process according to claim 4, characterized in that, The clamp body (370) has sealing grooves (374) on both sides of the contour cavity (373), and a sealing ring is provided in the sealing groove (374).

6. The gas-blowing shielded welding process according to claim 1, characterized in that, The clamping structure includes a mounting base (31), a clamping cylinder (32), and a clamping member. The mounting base (31) is slidably connected to the lifting structure (2), the clamping cylinder (32) is fixedly connected to the mounting base (31), and the clamping member is connected to the output shaft of the clamping cylinder (32).

7. The gas-blowing shielded welding process according to claim 6, characterized in that, The clamping components include a first transmission plate (33), a second transmission plate (34), and a clamping plate (35). The first transmission plate (33) is symmetrically connected to the output shafts on both sides of the clamping cylinder (32). The second transmission plate (34) is fixedly connected to the first transmission plate (33). The clamping plate (35) is fixedly connected to the second transmission plate (34). The first clamp (37) and the second clamp (38) are respectively connected to the two clamping plates (35).

8. The gas-blowing shielded welding process according to claim 1, characterized in that, In step S2, the lifting structure (2) includes a push-pull cylinder (21) and a guide rail (22). The push-pull cylinder (21) is fixedly connected to the worktable (1), and the guide rail (22) is fixedly connected to the worktable (1) and located on one side of the push-pull cylinder (21). The air blowing structure (3) is slidably mounted on the guide rail (22), and the output shaft of the push-pull cylinder (21) is fixedly connected to the bottom of the air blowing structure (3).

Images