A sleeve connector welding device

Abstract

The present application is suitable for the field of welding equipment, and provides a sleeve connecting piece welding device, which comprises: a first positioning structure, which has a space for placing a sleeve; a column body capable of extending to the central area of the sleeve is arranged in the space, and the column body has a tentative axis extending in a first direction; an upper end positioning part and a lower end positioning part are arranged on the column body; a welding head moving along an annular track around the tentative axis is further arranged in the space; and a second positioning structure is connected with the first positioning structure, whereby the present application can realize accurate positioning and stable welding during the welding process of the sleeve through the synergistic effect of the first positioning structure and the second positioning structure; the upper end positioning part and the lower end positioning part of the first positioning structure position the sleeve in the first direction, so that a predetermined gap is ensured between the lower end face of the sleeve and the mating welding surface, thereby forming a stable welding seam structure and ensuring the strength of the welding seam.

Description

Technical Field

[0001] This invention relates to the field of welding equipment, and more particularly to a welding device for sleeve connectors. Background Technology

[0002] The sleeve and the stiffened column are not directly welded, mainly due to drawbacks including stress concentration caused by the heat-affected zone during welding and the high skill requirements of welding operations. To address these issues, existing technologies typically connect the reinforcing bar and the stiffened column using a sleeve as a connector. The sleeve employs a weldable structure with flush end faces, which is welded to the end face of the stiffened column, while the other end face of the sleeve is threaded with the reinforcing bar.

[0003] However, when welding the sleeve, circumferential welding is required along the outer contact edge of the sleeve to form a ring-shaped weld structure. This welding process significantly increases the welding strength of the traditional hand-held welding method for the following reasons: First, due to the small diameter of the sleeve, the amplitude of the swing of the welding head during welding is large, making it difficult to maintain stability using the traditional welding method; Second, the number of sleeves to be welded on the same stiffener end face is large, resulting in a large amount of manual welding work and difficulty in ensuring welding accuracy.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0005] To address the aforementioned deficiencies, the present invention aims to provide a sleeve connector welding device that can achieve precise positioning and stable welding during the sleeve welding process through the synergistic action of a first positioning structure and a second positioning structure. Furthermore, the present invention positions the sleeve in a first direction using the upper and lower positioning parts of the first positioning structure, ensuring a predetermined gap between the lower end face of the sleeve and the mating welding surface. This facilitates the subsequent formation of a stable weld structure and guarantees the strength of the weld.

[0006] To achieve the above objectives, the present invention provides a sleeve connector welding device, comprising: a first positioning structure having a space for placing a sleeve; a column extending to the central region of the sleeve is disposed within the space, the column having a predetermined axis distributed along a first direction; an upper positioning part and a lower positioning part are disposed on the column, the upper positioning part and the lower positioning part having a distance between them in the first direction for positioning the sleeve in the first direction; the lower positioning part drives the lower end face of the sleeve to have a predetermined gap with the mating welding surface; a welding head is also disposed within the space for moving in a circular trajectory around the predetermined axis; and a second positioning structure connected to the first positioning structure for positioning the sleeve within the first positioning structure to the area to be welded.

[0007] According to the sleeve connector welding device of the present invention, the inner wall diameter of the space is equal to the outer diameter of the sleeve, or the maximum intended outer diameter of the column is equal to the inner diameter of the sleeve.

[0008] According to the sleeve connector welding device of the present invention, the column is a cylindrical structure, the proposed axis is the central axis of the cylindrical structure, and the maximum proposed outer diameter is its cross-sectional diameter.

[0009] According to the sleeve connector welding device of the present invention, the lower positioning part is a protruding tip structure movably disposed on the column body, the column body has a receiving cavity, and the protruding tip structure is installed in the receiving cavity; when in the positioning state, the protruding tip structure extends outward from the column body.

[0010] According to the sleeve connector welding device of the present invention, the upper positioning part is a boss structure extending outward from the outer wall of the column.

[0011] According to the sleeve connector welding device of the present invention, the boss structure is disposed on a clamping column, the clamping column is screwed to the bracket of the first positioning structure, the clamping column is fixedly connected to the column body, or the clamping column is movably connected to the column body and can move relative to it along a first direction.

[0012] According to the sleeve connector welding device of the present invention, multiple protruding tip structures are provided and arranged around the column, and can extend or retract synchronously after being driven by a driving component.

[0013] According to the sleeve connector welding device of the present invention, one of the plurality of said protruding structures can be extended after being driven by a driving component.

[0014] According to the sleeve connector welding device of the present invention, the driving component includes a driving rod coaxially disposed within the cylinder and a driving head disposed at the end of the driving rod; the driving head is a tapered structure with a diameter gradually decreasing near the end; a protrusion is disposed near the smaller diameter end of the tapered structure; the driving rod and the inner wall of the cylinder are partially provided with mating threads; in a first working state, the driving rod drives the protrusion to contact the tip structure in a sliding manner; in a second working state, the driving rod drives the side wall of the tapered structure to contact the tip structure in a screwed manner.

[0015] According to the sleeve connector welding device of the present invention, the welding head is disposed on an arc-shaped or annular rack; the rack is connected to a gear installed in a first positioning structure bracket; after the gear is driven to rotate, it drives the rack to rotate, thereby driving the welding head to complete the welding work.

[0016] This invention provides a sleeve connector welding device, comprising a first positioning structure having a space for placing a sleeve; a column extending to the center region of the sleeve is disposed within the space, the column having a predetermined axis distributed along a first direction; an upper positioning part and a lower positioning part are disposed on the column, the upper and lower positioning parts being spaced apart in the first direction for positioning the sleeve in the first direction; the lower positioning part drives a predetermined gap between the lower end face of the sleeve and the mating welding surface; a welding head is also disposed within the space, moving in a circular trajectory around the predetermined axis; and a second positioning structure connected to the first positioning structure for positioning the sleeve within the first positioning structure to the area to be welded.

[0017] This invention can achieve precise positioning and stable welding during the sleeve welding process through the synergistic effect of the first positioning structure and the second positioning structure. The invention positions the sleeve in the first direction through the upper and lower positioning parts of the first positioning structure, ensuring that there is a predetermined gap between the lower end face of the sleeve and the mating welding surface, so as to form a stable weld structure and ensure the strength of the weld. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the baffle after it is fastened together according to the present invention;

[0020] Figure 3 This is an installation diagram of the present invention;

[0021] Figure 4 This is a structural diagram of the rack after it rotates;

[0022] Figure 5 This is a cross-sectional schematic diagram of the present invention;

[0023] Figure 6 This is a schematic diagram of the drive head and protrusion on the drive rod;

[0024] Figure 7 This is a schematic diagram of a ring rack driven by a gear.

[0025] Figure 8 yes Figure 3 Enlarged view of the structure of section A;

[0026] Figure 9 This is a schematic diagram of a structure in which multiple protruding tips are driven synchronously.

[0027] Figure 10 This is a schematic diagram of a structure in which multiple protruding tips are driven by a single force.

[0028] Figure 11This is a structural diagram of the sleeve weld.

[0029] Figure 12 yes Figure 4 A magnified view of part B from another perspective;

[0030] In the diagram, 00-sleeve, 1-first positioning structure, 2-bracket, 3-space, 4-opening, 5-observation port, 6-baffle, 7-column, 8-upper positioning part, 81-lower positioning part, 9-second positioning structure, 10-claw, 11-assembly sleeve, 12-protruding tip structure, 13-boom structure, 14-pressing column, 15-drive rod, 16-drive head, 17-protrusion, 18-rack, 19-gear, 20-welding head. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the invention and are not intended to limit the invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0033] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0034] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0035] See Figure 1 , Figure 2 and Figure 3 The present invention provides a sleeve connector welding device, the sleeve connector welding device comprising:

[0036] The first positioning structure 1 includes a circumferential support 2. The support 2 has a space 3 for placing the sleeve 00 inside. The bottom of the support 2 has an opening 4 communicating with the space 3. In this embodiment, the side of the support 2 is also provided with an observation port 5. A baffle 6 that can open / close the observation port 5 is slidably installed on the support 2. If a problem occurs during the welding process, the operator can observe the welding situation inside the equipment at any time through the observation port 5. When installing the component, the sleeve 00 can be placed in the space 3 through the opening 4 or the observation port 5 for the next welding work.

[0037] A column 7 extending to the center region of the sleeve 00 is provided within the space 3. The column 7 has a predetermined axis distributed along a first direction; the first direction is perpendicular to the mating welding surface. Figure 3 As shown in the figure, it should be explained that the mating welding surface refers to one side of the component (in this embodiment, it is a stiffening column, but it can also be other components) that is mated and welded with the sleeve 00.

[0038] See Figure 3 and Figure 8 The column 7 is provided with an upper positioning part 8 and a lower positioning part 81, with a distance S between the upper positioning part 8 and the lower positioning part 81 in a first direction, which is used to position the sleeve 00 in the first direction. During the positioning process, the upper positioning part 8 contacts the upper end face of the sleeve 00, and the lower positioning part 81 contacts the lower end face of the sleeve 00. The contact state during positioning can be surface contact, line contact, or even point contact. The lower positioning part 81 drives the lower end face of the sleeve 00 to have a predetermined gap H between it and the mating welding surface. This gap is about 2.5mm. This gap is a prerequisite for realizing the welding of the outer edge of the sleeve 00, and has the advantages of "ensuring root penetration", "controlling stress deformation and reducing the heat-affected zone of welding" and "preventing welding defects", effectively ensuring the stability of the weld.

[0039] The space 3 is also equipped with a welding head 20 that moves in a circular trajectory around a predetermined axis. During the welding process, the welding head 20 moves in a circular trajectory along the predetermined axis, thereby performing uniform and stable welding on the outer edge of the lower end face of the sleeve 00. Figure 11 (As shown).

[0040] The upper positioning part 8 and the lower positioning part 81 not only provide a stable position for the sleeve 00, but also ensure an appropriate gap between the sleeve 00 and the mating welding surface, thus guaranteeing the formation and stability of the weld. Furthermore, the design of the observation port 5 and the baffle 6 allows operators to observe the internal condition of the equipment at any time during the welding process, promptly identifying and addressing any potential problems, further improving the reliability and safety of the welding.

[0041] See Figure 1 and Figure 3 The second positioning structure 9, connected to the first positioning structure 1, is used to position the sleeve 00 located within the first positioning structure 1 to the area to be welded. In this embodiment, the second positioning structure 9 positions the sleeve 00 to a specific position on the stiffening column. The specific structure of the second positioning structure 9 can be selected as needed to adapt to different structures of the welding components. For example, when the welding component is a stiffening column (I-beam structure), the second positioning structure 9 consists of symmetrical claws 10, each claw fixed to the bracket 2 of the first positioning structure 1. During the positioning process, the claws 10 engage with the edge of the I-beam stiffening column. Preferably, each claw 10 can be adjusted in position along a second direction to increase the positioning width between the two claws 10, adapting to stiffening columns of different widths and increasing the versatility of the equipment. Specifically, the bracket 2 of the first positioning structure 1 is provided with an assembly sleeve 11, the end of the claw 10 is nested within the assembly sleeve 11, and a positioning element (a fixing bolt can be used for the positioning element) is installed between the assembly sleeve 11 and the end of the claw to lock the two after the position is adjusted.

[0042] In some embodiments of the present invention, the inner wall diameter of the space 3 is equal to the outer diameter of the sleeve 00, or the maximum intended outer diameter of the column 7 is equal to the inner diameter of the sleeve 00.

[0043] This design ensures that the sleeve 00 fits tightly with the positioning structure during the positioning process, reducing wobbling and deviation, and improving the accuracy and quality of welding. When the inner wall diameter of space 3 is equal to the outer diameter of sleeve 00, sleeve 00 can be placed stably in space 3 and receive uniform support force; while when the maximum designed outer diameter of column 7 is equal to the inner diameter of sleeve 00, column 7 can be tightly inserted into sleeve 00, which also plays a role in stable positioning.

[0044] The maximum proposed outer diameter of the column 7 is determined by its structure, as shown in the figure. If the column 7 is a cylindrical structure, the proposed axis is the central axis of the cylindrical structure, and the maximum proposed outer diameter is its cross-sectional diameter. If the column 7 is a prism structure, the proposed axis is also the central axis, and the maximum proposed outer diameter is the diameter of the proposed outer circle formed by the edges of its cross-section.

[0045] See Figure 4 In some embodiments of the present invention, the lower positioning part 81 is a protruding tip structure 12 movably disposed on the column 7. This protruding tip structure 12, while ensuring positioning, can be structurally selected as needed, such as... Figure 9As shown, the protruding tip structure 12 is a flat, blocky protrusion structure. The column 7 has a receiving cavity, and the protruding tip structure 12 is installed within this cavity. When in the positioning state, the protruding tip structure 12 extends outward relative to the column 7. During positioning, the protruding tip structure 12 extends and contacts the lower end face of the sleeve 00, with an extension distance approximately 1 / 4 of the radial distance between the inner and outer sides of the sleeve 00. Figure 9 As shown in the diagram, this ensures a stable support point without affecting the welding process. When the sleeve 00 needs to be installed, simply retract the protruding structure 12 and install the sleeve 00 onto the column 7 (if necessary, the clamping column 14 can be adjusted, as detailed below), then drive the protruding structure 12 to extend for positioning. After welding is completed, similarly drive the protruding structure 12 to retract to complete disassembly.

[0046] See Figure 9 Furthermore, multiple protruding tip structures 12 are provided and arranged around the column 7, and can extend or retract synchronously after being driven by a driving component.

[0047] See Figure 4 and Figure 12 In some embodiments of the present invention, the upper positioning part 8 is a boss structure 13 extending outward from the outer wall of the column 7. The boss structure 13 can effectively contact the upper end face of the sleeve 00 to achieve a stable positioning effect. This structure is not only easy to process and manufacture, but also maintains high stability and durability during use.

[0048] Furthermore, the boss structure 13 is disposed on a clamping column 14, the clamping column 14 is screwed to the bracket 2 of the first positioning structure 1, and the connection between the clamping column 14 and the column body 7 is provided in this application in two ways.

[0049] In the first embodiment, to highlight stability and ensure the positioning effect of the foundation, the clamping column 14 is fixedly connected to the column body 7. This fixed connection method fixes the distance S between the upper positioning part 8 and the lower positioning part 81, thereby providing reliable positioning, reducing welding errors caused by component loosening, and improving welding accuracy.

[0050] In the second embodiment, the difference from the first embodiment is that the clamping column 14 is movably connected to the column body 7 and can move relative to it along the first direction. The connection between the two can be achieved by screwing or other connection methods. This design allows for a certain degree of adjustability between the clamping column 14 and the column body 7, making the distance S between the upper positioning part 8 and the lower positioning part 81 adjustable.

[0051] On the one hand, the position can be adjusted according to different specifications of sleeve 00 (such as sleeve 00 of different heights) to meet diverse positioning needs.

[0052] On the other hand, the following structure can be used for quality inspection. Based on the second embodiment, in addition to being able to extend / retract synchronously, the plurality of the protruding tip structures 12 can also be driven by a driving component to extend / retract selectively.

[0053] See Figure 10 In this structure, the single protruding tip structure 12 can perform quality inspection on the sleeve 00. This is because although the sleeve 00 is a standard part, during the processing, the lower end face of the defective sleeve 00 may have a slight depression. This depression increases the gap at the weld between the parts (i.e., the predetermined gap H), making it impossible for the molten metal during welding to cover this gap, resulting in the weld not being able to be closed.

[0054] During the testing process, after placing the sleeve 00 in the space 3, the relative positions of the clamping column 14 and the column 7 are adjusted so that the lower end face of the sleeve 00 is in contact with the rigid column surface, further driving the protruding tip structure 12 to extend individually. When one of the protruding tip structures 12 has a longer extension distance than the other protruding tip structures 12, it indicates that the sleeve 00 has a slight indentation. Figure 10 As shown in the figure, in this case, it is necessary to reduce the predetermined gap H between the lower end face of the sleeve 00 and the mating welding surface during welding positioning (it must be less than 2.5mm), or replace the sleeve 00 with a new one.

[0055] See Figure 5 and Figure 6 The driving component includes a driving rod 15 coaxially disposed within the column 7 and a driving head 16 disposed at its end; the driving head 16 is a tapered structure with a diameter that gradually decreases near the end; a protrusion 17 is provided near the smaller diameter end of the tapered structure, and the protrusion 17 can be a ball protrusion structure;

[0056] The drive rod 15 and the inner wall of the column 7 are partially provided with mating threads. It needs to be explained that the thread structure adopts a double thread meshing structure, that is, the outer wall of the drive rod 15 is partially provided with protruding threads, and the inner wall of the column 7 is also partially provided with protruding threads.

[0057] In the first working state, the drive rod 15 drives the protrusion 17 to contact the tip structure 12 in a sliding manner.

[0058] In the second working state, the drive rod 15 drives the side wall of the conical structure to contact the tip structure 12 in a screwed manner.

[0059] During operation, after placing the sleeve 00 in space 3, the detection work is carried out first, followed by the positioning work.

[0060] See Figure 10During the testing process, first adjust the distance between the clamping column 14 and the column 7 so that the clamping column 14 presses the sleeve 00 so that its lower end face contacts the rigid column surface. Then, adjust the drive rod 15 to the first working state so that it drives the protrusion 17 to contact the individual protruding tip structure 12 one by one in a sliding manner (rotate the drive rod 15 when switching). When rotated to one of the angle positions, the drive rod 15 can press down (it cannot press down in other positions), that is, the protruding tip structure 12 is in a state with a long extension distance at this position, which indicates that there is a depression on the lower end face of the sleeve 00. The operator can adjust the subsequent predetermined gap H or replace the sleeve 00 according to the actual situation.

[0061] See Figure 9 During the positioning process, the distance between the clamping column 14 and the column 7 is adjusted (adjusted to the position required for the above positioning state), and the drive rod 15 is switched to the second working state. The drive rod 15 drives the tapered structure sidewall to contact the protruding tip structure 12 in a screw connection, so that multiple protruding tip structures 12 extend synchronously, and maintain a stable predetermined gap H between the lower end face of the sleeve 00 and the mating welding surface.

[0062] Finally, the welding process can be carried out.

[0063] The protruding tip structure 12 is stretched by the spring and retracts into the column 7 after the drive head 16 or the protrusion 17 loses its compression.

[0064] See Figure 1 and Figure 4 In some embodiments of the present invention, the welding head 20 is disposed on an arc-shaped or annular rack 18; the rack 18 is connected to a gear 19 mounted on the bracket 2 of the first positioning structure 1. If an annular rack 18 is used, the number of gears 19 is two or more; after the gear 19 is driven (the gear 19 is driven by a rotating motor, which is not shown in the figure) and rotates, it drives the rack 18 to rotate, further driving the welding head 20 to complete the welding work.

[0065] See Figure 3 , Figure 4 and Figure 7 The welding head 20 is welded by electric arc welding. During equipment installation, the stiffening column is connected to the negative pole and the welding equipment is connected to the positive pole. At least one brush is installed in the bracket 2. The rack 18 is connected to the brush to achieve stable power transmission. This power connection structure is involved in existing welding equipment (such as round steel pipe welding equipment).

[0066] Specifically, during the welding process, firstly, the electrical circuit is activated, causing the welding head 20 to emit a stable electric arc. The space can be filled with inert gas to maintain the stability of the electric arc. Subsequently, the rotating motor is started, driving the gear 19 to rotate. The rotation of the gear 19 drives the arc-shaped or ring-shaped rack 18 that meshes with it to rotate, thereby driving the welding head 20 to move along a predetermined trajectory. The electric arc melts the welding position to form a weld, completing the welding work.

[0067] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A sleeve connector welding device, characterized in that, include: The first positioning structure has a space for placing a sleeve; a column extending to the center region of the sleeve is disposed within the space, and the column has a predetermined axis distributed along a first direction; an upper positioning part and a lower positioning part are disposed on the column, and the upper positioning part and the lower positioning part are spaced apart in the first direction for positioning the sleeve in the first direction; the lower positioning part drives the lower end face of the sleeve to have a predetermined gap with the mating welding surface; a welding head that moves in a circular trajectory around the predetermined axis is also disposed within the space. The second positioning structure is connected to the first positioning structure and is used to position the sleeve in the first positioning structure to the area to be welded. The lower positioning part is a protruding tip structure that is movably disposed on the column body. The column body has a receiving cavity, and the protruding tip structure is installed in the receiving cavity. When in the positioning state, the protruding tip structure extends outward from the column body. The protruding tip structure is provided in multiple ways and arranged around the column. After being driven by a driving component, it can extend or retract synchronously, or multiple protruding tip structures can extend one by one after being driven by a driving component. The driving component includes a driving rod coaxially disposed within the cylinder and a driving head disposed at the end of the driving rod. The drive head is a tapered structure whose diameter gradually decreases near the end; a protrusion is provided near the smaller diameter end of the tapered structure; The drive rod is partially threaded to fit the inner wall of the cylinder. In the first working state, the drive rod drives the protrusion to contact the tip structure in a sliding manner; In the second working state, the drive rod drives the side wall of the conical structure to contact the protruding tip structure in a screwed manner.

2. The sleeve connector welding device according to claim 1, characterized in that, The inner wall diameter of the space is equal to the outer diameter of the sleeve, or the maximum planned outer diameter of the column is equal to the inner diameter of the sleeve.

3. The sleeve connector welding device according to claim 2, characterized in that, The column is a cylindrical structure, the proposed axis is the central axis of the cylindrical structure, and the maximum proposed outer diameter is its cross-sectional diameter.

4. The sleeve connector welding device according to claim 1, characterized in that, The upper positioning part is a boss structure extending outward from the outer wall of the column.

5. The sleeve connector welding device according to claim 4, characterized in that, The boss structure is mounted on a clamping post, which is screwed to the bracket of the first positioning structure, and the clamping post is fixedly connected to the post body. Alternatively, the clamping column is movably connected to the column body and can move relative to it along the first direction.

6. The sleeve connector welding device according to claim 1, characterized in that, The welding head is disposed on an arc-shaped or annular rack; the rack is connected to a gear installed in the first positioning structure bracket; After the gear is driven to rotate, it drives the rack to rotate, thereby driving the welding head to complete the welding work.

Images