Automated welding of frames and bicycles

Abstract

The application provides an automatic welding frame and a bicycle, the automatic welding frame comprising: a first tube and a tube group, the tube group comprising two second tubes; a transition piece comprising two transition tubes, an acute angle being formed between the two transition tubes and the proximal intersection ends of the two transition tubes being connected with the first tube, the two second tubes of the tube group being respectively arranged on the two transition tubes and the end portions being welded with the transition tubes; or, the two second tubes being in an acute angle and the proximal intersection ends being directly welded with the first tube, the two second tubes both having a welding portion welded with the first tube, and the two welding portions being welded on the inner sides close to each other.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to an automatically welded frame and bicycle. Background Technology

[0002] In traditional technology, bicycle frames are typically welded together from multiple tubing components, largely relying on manual welding. With advancements in welding techniques and the widespread use of robotic arms in manufacturing, larger frame manufacturers are increasingly reducing manual welding and adopting automated welding methods using welding torches and machines.

[0003] However, due to the limitations of bicycle frame structure, welding torches of a certain size cannot be inserted into narrow spaces for automatic welding. These smaller spaces still require manual welding, which not only leads to low frame manufacturing efficiency and high cost, but also requires high welding skills from the welders and results in poor welding stability. Utility Model Content

[0004] Therefore, it is necessary to provide an automated welding frame and bicycle that can improve upon the aforementioned problems.

[0005] An automated welding frame, the automated welding frame comprising:

[0006] The first pipe and the pipe group, wherein the pipe group includes two second pipes;

[0007] The transition component includes two transition tubes forming an acute angle between them, with their near-intersection ends connected to the first tube. Two second tubes of the tube assembly are respectively welded to the two transition tubes and extend away from the first tube relative to the transition tubes. Alternatively, the two second tubes form an acute angle between them, with their near-intersection ends directly welded to the first tube. Both second tubes have weld portions that are welded to the first tube, and the two weld portions are welded close to each other's inner sides.

[0008] In one embodiment, the transition member is integrally formed with the first tube;

[0009] and / or

[0010] The transition piece is welded to the first pipe.

[0011] In one embodiment, the transition member further includes a connecting portion that connects the two transition tubes.

[0012] In one embodiment, the width of the welded portion of each of the second tubes is larger than the width of the other portions.

[0013] In one embodiment, the portion of the second tube that forms the welded portion is a flat tube.

[0014] In one embodiment, the second tube includes a body and a compensation portion, the compensation portion being connected to the side of the body near another second tube, the end of the body and the compensation portion together forming the weld portion, and the compensation portions included in the two weld portions being welded together.

[0015] In one embodiment, the main body and the compensation part are integrally formed.

[0016] In one embodiment, the automatically welded frame includes a center tube and a rear fork assembly, wherein one first tube is the center tube, and two second tubes of a group of tubes are the two upright fork tubes of the rear fork assembly;

[0017] and / or

[0018] The automatically welded frame includes a center tube and a rear fork assembly. One first tube is the center tube, and the two second tubes of the tube group are the two flat fork tubes of the rear fork assembly.

[0019] In one embodiment, the automatic welding frame includes a head tube, an upper beam tube, and a lower beam tube, wherein one first tube is the head tube, and two second tubes of a group of tubes are the upper beam tube and the lower beam tube, respectively.

[0020] and / or

[0021] The automatic welding frame includes a bottom bracket tube and a rear fork assembly. One first tube is the bottom bracket tube, and the two second tubes of a set of tubes are the two flat fork tubes of the rear fork assembly.

[0022] A bicycle comprising the aforementioned automatically welded frame.

[0023] In the aforementioned automatically welded frame and bicycle, the two second tubes of the tube assembly are welded to the first tube via transition tubes. Compared to directly welding the two second tubes to the first tube, this is equivalent to shifting the welding position outward along the extension direction of the second tubes. The further outward the welding position, the greater the distance between the two second tubes, ensuring sufficient welding space for the welding gun. This allows for welding of all circumferential points near the intersection of the second tubes to the first tube, avoiding manual repair welding. This not only improves manufacturing efficiency and reduces costs but also ensures welding stability because each point can be fixed by automatic welding. Alternatively, the two second tubes of the tube assembly can be directly welded to the first tube. The included angle between the two second tubes is larger, allowing sufficient welding space between the two welding points for welding gun welding. This facilitates welding between the two welding points. Since other parts at the ends of the welding points are welded to the first tube, welding between the two welding points is equivalent to welding each welding point to the first tube at every point, avoiding manual repair welding. This not only improves manufacturing efficiency and reduces costs but also ensures welding stability because each point can be fixed by automatic welding. Attached Figure Description

[0024] Figure 1 This is a structural diagram of an automatic welding frame provided in an embodiment of this application;

[0025] Figure 2 A comparison diagram of an automatically welded vehicle frame in the prior art and an automatically welded vehicle frame provided in an embodiment of this application;

[0026] Figure 3 A structural diagram of an automatically welded vehicle frame provided in another embodiment of this application;

[0027] Figure 4 This is a comparison diagram of an automatically welded vehicle frame in the prior art and an automatically welded vehicle frame provided in another embodiment of this application;

[0028] Figure 5 A structural diagram of an automatically welded vehicle frame provided in another embodiment of this application;

[0029] Figure 6 A comparison diagram of an automatically welded vehicle frame in the prior art and an automatically welded vehicle frame provided in another embodiment of this application;

[0030] Figure 7 A structural diagram of an automatically welded vehicle frame provided in another embodiment of this application;

[0031] Figure 8 This is a comparison diagram of an automatically welded vehicle frame in the prior art and an automatically welded vehicle frame provided in another embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Automatic welding frame; 10. First tube; 20. Tube assembly; 21. Second tube; 211. Welding section; 212. Main body; 213. Compensation section; 30. Transition piece; 31. Transition tube; 32. Connecting part; 40. Center tube; 50. Rear fork assembly; 51. Flat fork tube; 52. Vertical fork tube; 60. Head tube; 70. Top beam tube; 80. Bottom beam tube; 90. Bottom bracket tube; 200. Welding torch. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0040] See Figure 1 One embodiment of this application provides an automatic welding frame 100, which includes a first tube 10 and a tube assembly 20. The tube assembly 20 includes two second tubes 21, which form an acute angle with each other, and their near-intersection ends are connected to the first tube 10. That is, the two second tubes 21 included in the tube assembly 20 can directly intersect or their extensions intersect to form an intersection point, and the included angle between the two second tubes 21 is an acute angle. The ends of the two second tubes 21 near the intersection point are connected to the first tube 10.

[0041] It should be noted that the automatic welding frame 100 may include one first tube 10 or multiple first tubes 10, and the automatic welding frame 100 may include one set of tubes 20 or multiple sets of tubes 20, which is not limited here. One first tube 10 may be connected to one set of tubes 20 or multiple sets of tubes 20, which is also not limited here.

[0042] In some embodiments, the automatically welded frame 100 includes a center tube 40 and a rear fork assembly 50. A first tube 10 serves as the center tube 40, and two second tubes 21 of a tube set 20 are respectively the two upright fork tubes 52 of the rear fork assembly 50. In other embodiments, the automatically welded frame 100 includes a center tube 40 and a rear fork assembly 50. A first tube 10 serves as the center tube 40, and two second tubes 21 of a tube set 20 are respectively the two swingarm tubes 51 of the rear fork assembly 50. See also Figure 2In some embodiments, the automatically welded frame 100 includes a head tube 60, an upper beam tube 70, and a lower beam tube 80. A first tube 10 is the head tube 60, and two second tubes 21 of a tube group 20 are the upper beam tube 70 and the lower beam tube 80, respectively. See also... Figure 4 In some embodiments, the automatic welding frame 100 includes a bottom bracket tube 90 and a rear fork assembly 50, a first tube 10 being the bottom bracket tube 50, and two second tubes 21 of a tube group 20 being the two flat fork tubes 51 of the rear fork assembly 50.

[0043] For some specific implementation methods, see [link to relevant documentation]. Figure 1 The automatically welded frame 100 includes a first tube 10, which is the center tube 40. The automatically welded frame 100 includes two sets of tube assemblies 20. The second tube 21 of one set of tube assemblies 20 is the two upright fork tubes 52 of the rear fork assembly 50, and the second tube 21 of the other set of tube assemblies 20 is the two swingarm tubes 51 of the rear fork assembly 50. In some embodiments, the automatically welded frame 100 includes two first tubes 10, one being the center tube 40 and the other being the head tube 60. The automatically welded frame 100 also includes at least two sets of tube assemblies 20, where the second tube 21 of the tube assembly 20 connected to the center tube 40 is the upright fork tube 52 and / or the swingarm tube 51, and the second tube 21 of the tube assembly 20 connected to the head tube 60 is the top beam tube 70 and the bottom beam tube 80.

[0044] The head tube 60 is the core structural component at the front end of the automatic welded frame 100, connecting the main body of the frame to the steering system. It is a crucial hub for controlling riding direction, transmitting road feedback, and ensuring handling stability. The bottom tube 40 supports the seatpost, which can be inserted into the bottom tube 40 and secured with quick-release clips or screws. The saddle is mounted on top of the seatpost. The top tube 70 and bottom tube 80 are the core load-bearing tubes of the automatic welded frame 100, directly determining its strength, stability, and riding comfort. The rear fork assembly 50 is used to mount the rear wheel. The bottom bracket tube 90 is the core connection hub between the automatic welded frame 100 and the drivetrain, directly determining the efficiency and smoothness of power transmission during riding, as well as the durability of the frame.

[0045] In some embodiments, see Figure 3The automatic welding frame 100 also includes a transition member 30, which includes two transition tubes 31. The two transition tubes 31 form an acute angle, and their near-intersection ends are both connected to the first tube 10. That is, the two transition tubes 31 included in the transition member 30 can directly intersect or their extended lines intersect to form an intersection point, and the included angle between the two transition tubes 31 is an acute angle. The near-intersection ends of the two transition tubes 31 are connected to the first tube 10. Further, the two second tubes 21 of the tube assembly 20 are respectively connected to the two transition tubes 31 of the transition member 30, and each second tube 21 extends away from the first tube 10 relative to the transition tube 31. The near-intersection end of each second tube 21 is welded to the transition tube 31.

[0046] In the automatic welding frame 100 provided in the above embodiment, the two second pipes 21 of the pipe assembly 20 are not directly connected to the first pipe 10. Instead, the transition member 30 is connected to the first pipe 10, and the two second pipes 21 are circumferentially welded to the two transition pipes 31 of the transition member 30. That is, the two second pipes 21 of the pipe assembly 20 are welded to the first pipe 10 through the transition pipes 31. This connection method is different from the method of directly welding the two second pipes 21 to the first pipe 10 (see...). Figure 2 (See the left side of the middle figure) This is equivalent to moving the welding position outward along the extension direction of the second pipe 21. The further out the welding position is, the greater the distance between the two second pipes 21, so as to leave enough welding space for the welding gun 200 to weld. This allows the circumferential parts of the end of the second pipe 21 near the intersection point to be welded to the first pipe 10, avoiding the need for manual repair welding. This not only improves manufacturing efficiency and reduces costs, but also ensures the stability of the welding because each part can be fixed by automatic welding.

[0047] Optionally, see Figure 2 and Figure 3 The transition piece 30 is integrally formed with the first tube 10, that is, the transition piece 30 is formed simultaneously when the first tube 10 is formed. This can reduce the welding process between the transition piece 30 and the first tube 10 and improve the processing and manufacturing efficiency.

[0048] In other embodiments, see Figure 1 and Figure 4 The transition piece 30 is welded to the first pipe 10. That is, the transition piece 30 and the first pipe 10 are set separately, and the transition piece 30 is connected to the first pipe 10 by welding.

[0049] Further reading Figure 1The transition member 30 also includes a connecting part 32, which connects two transition pipes 31. Since the connecting part 32 connects the two transition pipes 31, when the transition member 30 is welded to the first pipe 10, only the part of the transition pipe 31 that is not connected to the connecting part 32 needs to be welded to the first pipe 10, thus avoiding welding in the narrow space between the two transition pipes 31, thereby improving manufacturing efficiency and reducing processing and manufacturing costs.

[0050] In other embodiments, see Figure 5 The near-intersection ends of the two second pipes 21 of the pipe assembly 20 are directly welded to the first pipe 10. Each second pipe 21 has a weld portion 211 for welding to the first pipe 10, and the two weld portions 211 are welded close to each other on their inner sides. It should be noted that welding the two weld portions 211 close to each other on their inner sides means welding them in a predetermined direction perpendicular to the extension direction of the second pipe 21, on the sides that are closest to each other. The predetermined direction corresponding to each second pipe 21 is perpendicular to its extension direction.

[0051] In the above embodiment of the automatic welding frame 100, the two second pipes 21 of the pipe assembly 20 are directly welded to the first pipe 10. The included angle between the two second pipes 21 is relatively large, and sufficient welding space is provided between the two welding parts 211 for the welding gun 200 to facilitate welding between the two welding parts 211. Since the other parts at the ends of the welding parts 211 are welded to the first pipe 10, welding between the two welding parts 211 is equivalent to welding each part 211 to the first pipe 10 at every point, avoiding manual repair welding. This not only improves manufacturing efficiency and reduces costs, but also ensures welding stability because each part can be fixed by automatic welding.

[0052] In some embodiments, the width of the weld portion 211 of each second pipe 21 is larger than the width of other portions. It should be noted that "the width of the weld portion 211 of each second pipe 21 is larger than the width of other portions" means that in a predetermined direction perpendicular to the extension direction of the second pipe 21, the size of the weld portion 211 is larger than the size of other portions. Since the width of the weld portion 211 where the two second pipes 21 are welded to the first pipe 10 is larger than the width of other portions, compared to the prior art where the width of the second pipes 21 is uniform throughout, the larger width of the weld portion 211 effectively increases the included angle between the two second pipes 21, making the included angle larger and facilitating automatic welding between the two weld portions 211.

[0053] It should be understood that in some other embodiments, the width of the welding portion 211 of each second tube 21 can also be set to be equal to the width of other parts, as long as the included angle between the two second tubes 21 is large enough to achieve automatic welding between the two welding portions 211.

[0054] For some specific implementation methods, see [link to relevant documentation]. Figure 5 and Figure 6 The portion of the second tube 21 that forms the welding part 211 is a flat tube. The cross-sectional shape of the flat tube can be elliptical, and the outer diameter of the ellipse along its major axis is the width of the welding part 211. Because the welding part 211 is a flat tube, the included angle between the two second tubes 21 can be larger, so that the welding torch 200 can be inserted between the two welding parts 211 to weld them together.

[0055] Specifically, when the part of the second tube 21 that forms the welded part 211 is a flat tube, the other parts can be either round tubes or flat tubes, and there is no limitation here.

[0056] Of course, in some other embodiments, the part of the second tube 21 that forms the welding part 211 can be a round tube, and the other parts can be a flat tube or a round tube, etc.

[0057] In other embodiments, see Figure 7 and Figure 8 The second tube 21 includes a main body 212 and a compensating part 213. The compensating part 213 and the main body 212 are connected to the side of the other second tube 21. The end of the main body 212 and the compensating part 213 together form a welded part 211, and the compensating parts 213 of the two welded parts 211 are welded together. Since the end of the main body 212 and the compensating part 213 together form the welded part 211, the included angle between the two second tubes 21 can be larger, so that the welding torch 200 can be inserted between the two welded parts 211 to weld them together.

[0058] Specifically, the main body 212 and the compensation part 213 are integrally formed. It can be understood that the main body 212 and the compensation part 213 can also be set separately, with the compensation part 213 welded to the main body 212.

[0059] Another embodiment of this application provides a bicycle including the aforementioned automatically welded frame 100. Since the aforementioned automatically welded frame 100 has beneficial effects, the bicycle including the aforementioned automatically welded frame 100 has the same beneficial effects, which will not be described in detail here.

[0060] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automatically welded vehicle frame, characterized in that, The automated welding frame includes: The first tube (10) and the tube group (20), wherein the tube group (20) includes two second tubes (21); The transition member (30) includes two transition tubes (31), which form an acute angle between them and are connected to the first tube (10) at their near intersection points. The two second tubes (21) of the tube assembly (20) are welded to the two transition tubes (31) respectively and extend away from the first tube (10) relative to the transition tubes (31). Alternatively, the two second tubes (21) form an acute angle between them and are directly welded to the first tube (10) at their near intersection points. Both second tubes (21) have a weld portion (211) that is welded to the first tube (10), and the two weld portions (211) are welded close to each other on their inner sides.

2. The automatic welding frame according to claim 1, characterized in that, The transition piece (30) is integrally formed with the first tube (10); and / or The transition piece (30) is welded to the first tube (10).

3. The automatic welding frame according to claim 2, characterized in that, The transition member (30) also includes a connecting part (32), which connects the two transition tubes (31).

4. The automatic welding frame according to claim 1, characterized in that, The width of the welded portion (211) of each of the second tubes (21) is greater than the width of the other portions.

5. The automatic welding frame according to claim 1, characterized in that, The portion of the second tube (21) that forms the welded part (211) is a flat tube.

6. The automatic welding frame according to claim 1, characterized in that, The second tube (21) includes a main body (212) and a compensation part (213). The compensation part (213) is connected to the side of the main body (212) near the other second tube (21). The end of the main body (212) and the compensation part (213) together form the welded part (211). The compensation part (213) included in the two welded parts (211) are welded together.

7. The automatic welding frame according to claim 6, characterized in that, The main body (212) and the compensation part (213) are integrally formed.

8. The automatic welding frame according to claim 1, characterized in that, The automatic welding frame includes a center tube (40) and a rear fork assembly (50). One first tube (10) is the center tube (40), and the two second tubes (21) of a set of tube groups (20) are the two upright fork tubes (52) of the rear fork assembly (50). and / or The automatic welding frame includes a center tube (40) and a rear fork assembly (50). One first tube (10) is the center tube (40), and the two second tubes (21) of a set of tube groups (20) are the two flat fork tubes (51) of the rear fork assembly (50).

9. The automatic welding frame according to claim 1, characterized in that, The automatic welding frame includes a head tube (60), an upper beam tube (70) and a lower beam tube (80). One of the first tubes (10) is the head tube (60), and the two second tubes (21) of a set of tubes (20) are the upper beam tube (70) and the lower beam tube (80) respectively. and / or The automatic welding frame includes a bottom bracket tube (90) and a rear fork assembly (50). One first tube (10) is the bottom bracket tube (90), and the two second tubes (21) of a set of tube groups (20) are the two flat fork tubes (51) of the rear fork assembly (50).

10. A bicycle, characterized in that, Including the automated welding frame as described in any one of claims 1-9.

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