Welding equipment for welding frame body of electric bicycle

Abstract

The utility model discloses welding equipment for welding a frame body of an electric bicycle, the frame body of the electric bicycle comprises a battery tube, a motor seat and a middle tube which are to be welded together, and the welding equipment comprises a driving mechanism, a platform, a first limiting mechanism, a second limiting mechanism, a third limiting mechanism and a welding robot. And the platform is arranged on the driving mechanism. And the first limiting mechanism is used for limiting the battery tube. The second limiting mechanism is used for limiting the motor base. And the third limiting mechanism is used for limiting the middle pipe. The welding robot is used for welding the connecting positions of the battery tube, the motor base and the middle tube. When the platform is driven by the driving mechanism to rotate, the first limiting mechanism, the second limiting mechanism and the third limiting mechanism rotate along with the platform. The welding equipment can improve the welding efficiency of the battery tube, the motor base and the middle tube and improve the welding quality of the battery tube, the motor base and the middle tube.

Description

Technical Field

[0001] The embodiments of the present utility model relate to the technical field, and more specifically, the present utility model relates to a welding device for welding a frame of an electric bicycle. Background Art

[0002] In the bicycle manufacturing industry, especially in the production of electric and smart bicycles, welding battery tubes, motor mounts, and mid-tubes is a crucial step. The secure connection of these components not only directly impacts the overall structural strength and safety of the vehicle, but also its range and riding experience. However, in current production practices, this crucial step is largely manual.

[0003] In the existing technology, welders need to hold welding torches and perform spot welding or continuous welding on these bicycle parts one by one. Although manual welding can show high flexibility and adaptability to complex structures in some aspects, its inherent limitations and shortcomings are becoming increasingly obvious. The problems are as follows: 1) Manual welding is a process that is highly dependent on the skills and experience of the operator. Not only is the welding speed limited by the individual's operating speed, but when processing a large number of production orders, the labor cost and time cost increase significantly, making it difficult to meet the needs of fast and efficient production; 2) Because the welding quality depends largely on the operator's proficiency and work status on the day, even within the same batch of products, problems such as uneven welding strength and large differences in weld appearance may occur, affecting the overall quality and consistency of the products; 3) During the manual welding process, workers are exposed to high temperatures, arc radiation, and harmful fumes for a long time, which not only increases occupational health risks such as eye damage, skin burns, and respiratory diseases, but also puts higher requirements on safety management at the production site. Utility Model Content

[0004] In order to solve one or more of the technical problems mentioned above, the utility model provides a welding device for welding the frame of an electric bicycle, which can improve the welding efficiency of the battery tube, motor seat and middle tube, improve the welding quality of the three, and reduce the occupational health risks of workers.

[0005] The present invention provides a welding device for welding an electric bicycle frame, wherein the electric bicycle frame includes a battery tube, a motor seat, and a middle tube to be welded together. The welding device includes:

[0006] Drive mechanism;

[0007] a platform, which is provided on the driving mechanism and can rotate about a vertical line perpendicular to its plane as an axis under the drive of the driving mechanism;

[0008] a first limiting mechanism, which is provided on the platform and is used to limit the position of the battery tube;

[0009] a second limiting mechanism, which is provided on the platform and is used to limit the position of the motor base;

[0010] a third limiting mechanism, which is provided on the platform and is used to limit the position of the middle tube; and

[0011] a welding robot, used to weld the connection between the battery tube, the motor base, and the middle tube;

[0012] When the platform is driven by the driving mechanism to rotate, the first limiting mechanism, the second limiting mechanism and the third limiting mechanism all rotate together with the platform.

[0013] Furthermore, the first limiting mechanism includes:

[0014] a first connecting plate, which is arranged on the platform;

[0015] a first limiting seat, which is provided on the first connecting plate and has a first limiting groove having a shape capable of fitting with the outer wall of the battery tube;

[0016] a first hinged rod, hinged to the first limiting seat; and

[0017] a first pressing block, which is provided at one end of the first hinged rod;

[0018] After the battery tube is placed in the first limiting groove, the first hinge rod can be operated to drive the first pressing block to press the battery tube tightly into the first limiting groove.

[0019] Furthermore, the first limiting mechanism further includes:

[0020] a fixing seat, which is provided on an end of the first connecting plate away from the platform and has a limiting hole formed thereon along the axial direction of the battery tube;

[0021] a push rod, which is inserted into the limiting hole; and

[0022] The pushing block includes a connecting portion located in the middle thereof and hinged to the push rod, and a pushing portion connected to the connecting portion and configured in a semi-cylindrical shape;

[0023] Wherein, pushing the push rod can cause the pushing portion to fit onto the end of the battery tube away from the platform, and the limiting hole can keep the push rod moving along a preset path.

[0024] Furthermore, the first pressing block and the pushing block are made of polyurethane or rubber.

[0025] Furthermore, the second limiting mechanism includes:

[0026] a second connecting plate, which is arranged on the platform;

[0027] a first clamping plate, which is disposed on the second connecting plate and has a first protrusion on its plate surface close to the motor base;

[0028] A second clamping plate, which is disposed on the second connecting plate and has a second protrusion on its plate surface close to the motor base; and

[0029] a clamping driving member, which is provided on the second connecting plate;

[0030] Among them, the clamping drive component can drive the first clamping plate and the second clamping plate to approach each other, so as to cause the two opposite plate surfaces of the first clamping plate and the second clamping plate to approach each other and clamp the motor base, and after the first clamping plate and the second clamping plate approach each other, the first protrusion and the second protrusion can support the motor base.

[0031] Furthermore, the third limiting mechanism includes:

[0032] a connecting assembly disposed on the platform;

[0033] A second limiting seat is provided on the connecting assembly and is provided with a second limiting groove shaped to fit the outer wall of the middle tube;

[0034] a second hinged rod, hinged to the second limiting seat; and

[0035] a second pressing block, which is provided at one end of the second hinged rod;

[0036] After the middle tube is placed in the second limiting groove, the second hinged rod can be operated to drive the second pressing block to press the middle tube tightly into the second limiting groove.

[0037] Furthermore, the connection component includes:

[0038] a third connecting plate, which is disposed on the platform and has a first waist-shaped hole formed thereon along a first direction;

[0039] a fourth connecting plate, one end of which is sequentially passed through the first waist-shaped hole and the fourth connecting plate via a fastener to be connected to the third connecting plate, and a second waist-shaped hole is formed on the other end of the fourth connecting plate along the second direction; and

[0040] a fifth connecting plate, which is sequentially passed through the second waist-shaped hole and the fifth connecting plate by the fastener to be connected to the fourth connecting plate, and the second limiting seat is also provided on the fifth connecting plate;

[0041] The first direction and the second direction are perpendicular to each other.

[0042] Furthermore, a third waist-shaped hole is opened on the fifth connecting plate along the axial direction of the middle tube, and the fifth connecting plate is sequentially passed through the second waist-shaped hole and the third waist-shaped hole through the fastener to be connected to the fifth connecting plate.

[0043] Furthermore, the welding robot includes a welding head capable of welding the battery tube, the motor seat and the middle tube, and a moving component for driving the welding head to move.

[0044] Furthermore, the driving mechanism is a motor and a transmission assembly for transmitting power of the motor to the platform.

[0045] In the welding equipment provided in this embodiment, the first limiting mechanism limits the battery tube to ensure that the battery tube does not shift during the welding process. The second limiting mechanism limits the motor seat to ensure that the motor seat does not shift during the welding process. The third limiting mechanism limits the middle tube to ensure that the middle tube does not shift during the welding process. The driving mechanism drives the first limiting mechanism, the second limiting mechanism, and the third limiting mechanism on the platform to rotate, so that the welding robot can perform circumferential welding on the connection position between the battery tube, the motor seat, and the middle tube, thereby replacing the original manual welding method, thereby improving the welding efficiency of the battery tube, the motor seat, and the middle tube. And since only manual assembly is required, the entire welding process is performed by the welding robot, thereby improving the welding quality of the battery tube, the motor seat, and the middle tube, and avoiding the probability of accidents occurring to workers during the welding process, thereby reducing the occupational health risks of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0047] Figure 1 A schematic diagram of the structure of the welding equipment provided by the embodiment of the present invention and the battery tube, motor base and middle tube involved in the embodiment of the present invention is shown;

[0048] Figure 2A schematic diagram of the structure of the platform, the first limiting mechanism, the second limiting mechanism, and the third limiting mechanism provided in an embodiment of the present invention, as well as the battery tube, the motor seat, and the middle tube involved in the embodiment of the present invention is shown;

[0049] Figure 3 A schematic structural diagram of the battery tube, motor base, and middle tube involved in an embodiment of the present utility model is shown;

[0050] Figure 4 A schematic structural diagram of the platform and the first limiting mechanism provided in an embodiment of the present utility model is shown;

[0051] Figure 5 A schematic structural diagram of the platform and the second limiting mechanism provided in an embodiment of the present utility model is shown;

[0052] Figure 6 A schematic structural diagram of the platform and the third limiting mechanism provided in an embodiment of the utility model is shown.

[0053] In the picture:

[0054] 1. Driving mechanism;

[0055] 2. Platform;

[0056] 3. First limiting mechanism; 31. First connecting plate; 32. First limiting seat; 321. First limiting groove; 33. First hinge rod; 34. First pressing block; 35. Fixed seat; 351. Limiting hole; 36. Push rod; 37. Pushing block; 371. Connecting portion; 372. Pushing portion;

[0057] 4. Second limiting mechanism; 41. Second connecting plate; 42. First clamping plate; 421. First protrusion; 43. Second clamping plate; 431. Second protrusion; 44. Clamping drive member;

[0058] 5. Third limiting mechanism; 51. Connecting assembly; 511. Third connecting plate; 5111. First waist-shaped hole; 512. Fourth connecting plate; 5121. Second waist-shaped hole; 513. Fifth connecting plate; 5131. Third waist-shaped hole; 52. Second limiting seat; 521. Second limiting groove; 53. Second hinged rod; 54. Second pressing block;

[0059] 6. Welding robot; 61. Welding head; 62. Moving component;

[0060] 100, battery tube; 200, motor seat; 300, middle tube. DETAILED DESCRIPTION

[0061] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are part of the embodiments of the present disclosure, not all of them. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0062] Figure 1 The figure shows the welding equipment provided in this embodiment and the schematic diagram of the battery tube 100, the motor base 200 and the middle tube 300 involved in the embodiment of the present utility model. Figure 2 The schematic diagram shows the structure of the platform 2, the first limiting mechanism 3, the second limiting mechanism 4 and the third limiting mechanism 5 provided in this embodiment, as well as the battery tube 100, the motor base 200 and the middle tube 300 involved in the embodiment of the utility model. Figure 3 FIG1 shows a schematic structural diagram of the battery tube 100, motor base 200 and middle tube 300 involved in this embodiment. Figure 1-Figure 3 As shown, this embodiment provides a welding device for welding an electric bicycle frame. The electric bicycle frame includes a battery tube 100, a motor mount 200, and a center tube 300 to be welded together. The welding device includes a drive mechanism 1, a platform 2, a first limiting mechanism 3, a second limiting mechanism 4, a third limiting mechanism 5, and a welding robot 6. The platform 2 is mounted on the drive mechanism 1 and is capable of rotating about a line perpendicular to its plane when driven by the drive mechanism 1. The first limiting mechanism 3 is mounted on the platform 2 and is used to limit the position of the battery tube 100. The second limiting mechanism 4 is mounted on the platform 2 and is used to limit the position of the motor mount 200. The third limiting mechanism 5 is mounted on the platform 2 and is used to limit the position of the center tube 300. The welding robot 6 is used to weld the connection between the battery tube 100, the motor mount 200, and the center tube 300. When the platform 2 is driven by the driving mechanism 1 to rotate, the first limiting mechanism 3 , the second limiting mechanism 4 and the third limiting mechanism 5 all rotate together with the platform 2 .

[0063] In the welding equipment provided in this embodiment, the first limiting mechanism 3 limits the battery tube 100 to ensure that the battery tube 100 does not shift during the welding process. The second limiting mechanism 4 limits the motor base 200 to ensure that the motor base 200 does not shift during the welding process. The third limiting mechanism 5 limits the middle tube 300 to ensure that the middle tube 300 does not shift during the welding process. The driving mechanism 1 drives the first limiting mechanism 3, the second limiting mechanism 4 and the third limiting mechanism 5 on the platform 2 to rotate, so that the welding robot 6 can perform circumferential welding on the connection position between the battery tube 100, the motor base 200 and the middle tube 300, thereby replacing the original manual welding method, thereby improving the welding efficiency of the battery tube 100, the motor base 200 and the middle tube 300. And since only manual assembly is required, the welding process is entirely performed by the welding robot 6. Therefore, the welding quality of the battery tube 100, the motor seat 200 and the middle tube 300 is also improved, and the probability of accidents occurring to workers during the welding process is avoided, thereby reducing the workers' occupational health risks.

[0064] It should be noted that the battery tube 100 is a tube on the electric bicycle used to place the battery and provide support for the entire frame, the motor seat 200 is a mechanical component on the electric bicycle used to place the motor, and the middle tube 300 is a tube on the electric bicycle used to place the seat or vegetable basket.

[0065] Figure 4 FIG. 2 shows a schematic structural diagram of the platform 2 and the first limiting mechanism 3 provided in this embodiment. Figure 4 Combined with Figure 1-Figure 3 As shown, the first limiting mechanism 3 includes a first connecting plate 31, a first limiting seat 32, a first hinged rod 33 and a first pressing block 34. The first connecting plate 31 is provided on the platform 2. The first limiting seat 32 is provided on the first connecting plate 31 and is provided with a first limiting groove 321 shaped to fit the outer wall of the battery tube 100. The first hinged rod 33 is hinged to the first limiting seat 32. The first pressing block 34 is provided at one end of the first hinged rod 33. After the battery tube 100 is placed in the first limiting groove 321, the first hinged rod 33 can be operated to drive the first pressing block 34 to press the battery tube 100 tightly into the first limiting groove 321. The limiting method of the first limiting groove 321 can ensure effective positioning of the battery tube 100 and facilitate workers to insert or remove the battery tube 100. In addition, the first pressing block 34 can form a comprehensive limit along the circumference of the battery tube 100 after the battery tube 100 is placed in the first limiting groove 321, pressing the battery tube 100 tightly against the first limiting groove 321, thereby limiting the displacement of the battery tube 100 along its own circumferential direction.

[0066] Furthermore, the first limiting mechanism 3 also includes a fixing seat 35, a push rod 36, and a push block 37. The fixing seat 35 is provided on the end of the first connecting plate 31 away from the platform 2, and a limiting hole 351 is provided thereon along the axial direction of the battery tube 100. The push rod 36 is inserted into the limiting hole 351. The push block 37 includes a connecting portion 371 located in the middle and hinged to the push rod 36, and a pushing portion 372 connected to the connecting portion 371 and configured as a semi-cylindrical shape. Pushing the push rod 36 can cause the pushing portion 372 to fit the end of the battery tube 100 away from the platform 2, and the limiting hole 351 can keep the push rod 36 moving along a preset path. The push block 37 pushes the battery tube 100 to move along its own axial direction, pressing the battery tube 100 against the motor base 200. This ensures that the battery tube 100 and the motor base 200 are in a mutually abutting state ready for welding before welding, and restricts the battery tube 100 from moving along its own axial direction. The push portion 372 of the push block 37 is adapted to the end of the battery tube 100 away from the platform 2, fully fitting the end of the battery tube 100 away from the platform 2, ensuring that the battery tube 100 does not deviate during the process of being forced to move along its own axial direction, thereby allowing the end of the battery tube 100 closer to the platform 2 to fully fit against the motor base 200. Specifically, the opening of the limiting hole 351 is aligned with the axial direction of the battery tube 100 to ensure that the movement path of the push rod 36 does not deviate.

[0067] It should be noted that the middle position of the pushing block 37 is half of the length of the pushing block 37 , so that the thrust generated by the push rod 36 can act evenly on the pushing block 37 .

[0068] Preferably, the first pressing block 34 and the pushing block 37 are made of polyurethane or rubber to ensure that the first pressing block 34 and the pushing block 37 do not make hard contact with the battery tube 100 when pressing against the battery tube 100, thereby preventing the first pressing block 34 and the pushing block 37 from causing scratches or other damage to the surface of the battery tube 100.

[0069] Figure 5 FIG. 2 shows a schematic structural diagram of the platform 2 and the second limiting mechanism 4 provided in this embodiment. Figure 5 Combined with Figure 1-Figure 3As shown, the second limiting mechanism 4 includes a second connecting plate 41, a first clamping plate 42, a second clamping plate 43, and a clamping driver 44. The second connecting plate 41 is disposed on the platform 2. The first clamping plate 42 is disposed on the second connecting plate 41, and a first protrusion 421 is provided on the surface of the first clamping plate 42 adjacent to the motor base 200. The second clamping plate 43 is disposed on the second connecting plate 41, and a second protrusion 431 is provided on the surface of the second clamping plate 43 adjacent to the motor base 200. The clamping driver 44 is disposed on the second connecting plate 41. The clamping driver 44 is capable of driving the first clamping plate 42 and the second clamping plate 43 toward each other, thereby forcing the opposing surfaces of the first clamping plate 42 and the second clamping plate 43 toward each other and clamping the motor base 200. After the first clamping plate 42 and the second clamping plate 43 are brought into proximity, the first protrusion 421 and the second protrusion 431 are capable of supporting the motor base 200. Because the motor base 200 is provided with ribs, a clamping position-limiting method is employed. Specifically, when the clamping driver 44 drives the first clamping plate 42 and the second clamping plate 43 toward each other, the opposing surfaces of the first clamping plate 42 and the second clamping plate 43 approach each other and clamp the motor base 200. After the motor base 200 is clamped, the first protrusion 421 and the second protrusion 431 are positioned beneath the ribs of the motor base 200, supporting the motor base 200. This clamping position-limiting method allows for faster and more stable positioning of the motor base 200, ensuring that it can be welded to the battery tubes 100 and the middle tube 300 in a stable position.

[0070] In this embodiment, the second clamping plate 43 is fixed on the platform 2, and the clamping drive 44 drives the first clamping plate 42 to approach the second clamping plate 43. In other embodiments, the clamping drive 44 can also drive the second clamping plate 43 or drive the first clamping plate 42 and the second clamping plate 43 at the same time.

[0071] Figure 6 FIG. 2 shows a schematic structural diagram of the platform 2 and the third limiting mechanism 5 provided in this embodiment. Figure 6 and combined Figure 1-Figure 3As shown, the third limiting mechanism 5 includes a connecting assembly 51, a second limiting seat 52, a second hinged rod 53, and a second pressing block 54. The connecting assembly 51 is arranged on the platform 2. The second limiting seat 52 is arranged on the connecting assembly 51 and is provided with a second limiting groove 521 shaped to fit the outer wall of the middle tube 300. The second hinged rod 53 is hinged to the second limiting seat 52. The second pressing block 54 is arranged at one end of the second hinged rod 53. After the middle tube 300 is placed in the second limiting groove 521, the second hinged rod 53 can be operated to drive the second pressing block 54 to press the middle tube 300 tightly into the second limiting groove 521. The limiting method of the second limiting groove 521 can ensure effective limiting of the middle tube 300, and can also facilitate workers to put in or take out the middle tube 300. In addition, the second pressing block 54 can form a comprehensive limit along the circumference of the middle tube 300 after the middle tube 300 is placed in the second limiting groove 521, pressing the middle tube 300 tightly against the second limiting groove 521, thereby limiting the displacement of the middle tube 300 along its own circumference.

[0072] Preferably, at least two second limiting seats 52 are provided, and the second pressing block 54 is located at the center between the at least two second limiting seats 52 to further improve the stability of the middle tube 300 when being restricted.

[0073] It should be noted that since the middle tube 300 needs to be placed tilted above the motor seat 200, its own axial direction can be limited by utilizing its own gravity, and when the driving mechanism 1 drives the platform 2 to rotate, the angle and speed changes are small. In the actual production process, when only the third limiting mechanism 5 is used, it is difficult for the middle tube 300 to shift.

[0074] Furthermore, the connecting assembly 51 includes a third connecting plate 511, a fourth connecting plate 512, and a fifth connecting plate 513. The third connecting plate 511 is provided on the platform 2, and a first waist-shaped hole 5111 is provided on the third connecting plate 511 along the first direction. One end of the fourth connecting plate 512 is sequentially passed through the first waist-shaped hole 5111 and itself by fasteners to connect to the third connecting plate 511, and a second waist-shaped hole 5121 is provided on the other end of the fourth connecting plate 512 along the second direction. The fifth connecting plate 513 is sequentially passed through the second waist-shaped hole 5121 and itself by fasteners to connect to the fourth connecting plate 512, and the second limit seat 52 is also provided on the fifth connecting plate 513. In particular, the first direction and the second direction are perpendicular to each other. Through the first waist-shaped hole 5111 and the second waist-shaped hole 5121, the third limiting mechanism 5 can adjust the positions of the second limiting seat 52, the second hinged rod 53 and the second pressure block 54 along the first direction or the second direction, so that the middle tube 300 limited by the third limiting mechanism 5 can be adaptively adjusted to meet the processing requirements of different models of frames in actual production.

[0075] It should be noted that, in this embodiment, the first direction is the vertical direction, and the second direction is the extending direction from the end of the battery tube 100 close to the platform 2 to the end thereof away from the platform 2 .

[0076] Furthermore, a third waist-shaped hole 5131 is provided on the fifth connecting plate 513 along the axial direction of the middle tube 300. The fifth connecting plate 513 is sequentially passed through the second waist-shaped hole 5121 and the third waist-shaped hole 5131 through fasteners to be connected to the fifth connecting plate 513, so as to adjust the second limit seat 52, the second hinged rod 53 and the second pressure block 54 to rotate with the fastener as the center point, thereby adjusting the inclination angle of the middle tube 300.

[0077] For example, the fasteners may be a bolt and nut combination to achieve detachable position adjustment and a stable fixing effect. In order to more conveniently display the first waist-shaped hole 5111, the second waist-shaped hole 5121 and the third waist-shaped hole 5131, the fasteners are not shown in this embodiment.

[0078] like Figure 1 As shown, further, the welding robot 6 includes a welding head 61 capable of welding the battery tube 100 , the motor seat 200 and the middle tube 300 and a moving component 62 for driving the welding head 61 to move.

[0079] It should be noted that the welding head 61 can be a welding tool such as a welding gun or a similar welding tool in the prior art, and the moving component 62 can be a four-axis manipulator or a similar manipulator in the prior art. Since the welding robot 6 is a common welding device in the prior art, the specific structure of the welding robot 6 is not described in detail in this embodiment. Any welding robot 6 in the prior art that can realize the set operation path to weld the workpiece should be within the protection scope of the disclosed embodiment.

[0080] In this embodiment, the drive mechanism 1 is a motor, and the transmission assembly is a gear set. The motor drives one gear in the gear set to rotate, and transmits power to the platform 2 through another gear, causing the platform 2 to rotate, thereby driving the platform 2 to rotate the first limiting mechanism 3, the second limiting mechanism 4, and the third limiting mechanism 5. In other embodiments, the drive mechanism 1 can also be other driving components capable of driving the platform 2 to rotate, and the transmission assembly can also be other transmission components that cooperate with the drive mechanism 1 to transmit power.

[0081] In the above description of this application, unless otherwise expressly specified or limited, terms such as "fixed," "installed," "connected," or "connected" should be understood in a broad sense. For example, with respect to the term "connected," it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean internal communication between two elements or an interaction between two elements. Therefore, unless otherwise expressly defined in this application, those skilled in the art can understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0082] According to the above description of the present application, those skilled in the art may also understand that the terms used below, such as "upper", "length", "vertical", "inner", "outer", "axial", "radial", "circumferential", "center", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings of the present application. They are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as a limitation on the scheme of the present invention.

[0083] In addition, the terms "first" or "second" used in this application to refer to numbers or ordinal numbers are used for descriptive purposes only and should not be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0084] Although multiple embodiments of the present invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art may conceive of many modifications, changes, and alternatives without departing from the concept and spirit of the present invention. It should be understood that in practicing the present invention, various alternatives to the embodiments of the present invention described herein may be adopted. The appended claims are intended to define the scope of protection of the present invention and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A welding device for welding an electric bicycle frame, wherein the electric bicycle frame includes a battery tube, a motor seat and a middle tube to be welded together, characterized in that: The welding equipment comprises: Drive mechanism; a platform, which is provided on the driving mechanism and can rotate about a vertical line perpendicular to its plane as an axis under the drive of the driving mechanism; a first limiting mechanism, which is provided on the platform and is used to limit the position of the battery tube; a second limiting mechanism, which is provided on the platform and is used to limit the position of the motor base; a third limiting mechanism, which is provided on the platform and is used to limit the position of the middle tube; and a welding robot, used to weld the connection between the battery tube, the motor base, and the middle tube; When the platform is driven by the driving mechanism to rotate, the first limiting mechanism, the second limiting mechanism and the third limiting mechanism all rotate together with the platform.

2. The welding equipment according to claim 1, characterized in that The first limiting mechanism includes: a first connecting plate, which is arranged on the platform; a first limiting seat, which is provided on the first connecting plate and has a first limiting groove having a shape capable of fitting with the outer wall of the battery tube; a first hinged rod, hinged to the first limiting seat; and a first pressing block, which is provided at one end of the first hinged rod; After the battery tube is placed in the first limiting groove, the first hinge rod can be operated to drive the first pressing block to press the battery tube tightly into the first limiting groove.

3. The welding equipment according to claim 2, characterized in that The first limiting mechanism further includes: a fixing seat, which is provided on an end of the first connecting plate away from the platform and has a limiting hole formed thereon along the axial direction of the battery tube; a push rod, which is inserted into the limiting hole; and The pushing block includes a connecting portion located in the middle thereof and hinged to the push rod, and a pushing portion connected to the connecting portion and configured in a semi-cylindrical shape; Wherein, pushing the push rod can cause the pushing portion to fit onto the end of the battery tube away from the platform, and the limiting hole can keep the push rod moving along a preset path.

4. The welding equipment according to claim 3, characterized in that The first pressing block and the pushing block are made of polyurethane or rubber.

5. The welding equipment according to claim 1, characterized in that The second limiting mechanism includes: a second connecting plate, which is arranged on the platform; a first clamping plate, which is disposed on the second connecting plate and has a first protrusion on its plate surface close to the motor base; A second clamping plate, which is disposed on the second connecting plate and has a second protrusion on its plate surface close to the motor base; and a clamping driving member, which is provided on the second connecting plate; Among them, the clamping drive component can drive the first clamping plate and the second clamping plate to approach each other, so as to cause the two opposite plate surfaces of the first clamping plate and the second clamping plate to approach each other and clamp the motor base, and after the first clamping plate and the second clamping plate approach each other, the first protrusion and the second protrusion can support the motor base.

6. The welding equipment according to claim 1, characterized in that The third limiting mechanism includes: a connecting assembly disposed on the platform; A second limiting seat is provided on the connecting assembly and is provided with a second limiting groove shaped to fit the outer wall of the middle tube; a second hinged rod, hinged to the second limiting seat; and a second pressing block, which is provided at one end of the second hinged rod; After the middle tube is placed in the second limiting groove, the second hinged rod can be operated to drive the second pressing block to press the middle tube tightly into the second limiting groove.

7. The welding device according to claim 6, characterized in that The connection component includes: a third connecting plate, which is disposed on the platform and has a first waist-shaped hole formed thereon along a first direction; a fourth connecting plate, one end of which is sequentially passed through the first waist-shaped hole and the fourth connecting plate via a fastener to be connected to the third connecting plate, and a second waist-shaped hole is formed on the other end of the fourth connecting plate along the second direction; and a fifth connecting plate, which is sequentially passed through the second waist-shaped hole and the fifth connecting plate by the fastener to be connected to the fourth connecting plate, and the second limiting seat is also provided on the fifth connecting plate; The first direction and the second direction are perpendicular to each other.

8. The welding device according to claim 7, characterized in that A third waist-shaped hole is provided on the fifth connecting plate along the axial direction of the middle tube, and the fifth connecting plate is sequentially passed through the second waist-shaped hole and the third waist-shaped hole by the fastener to be connected to the fifth connecting plate.

9. The welding device according to claim 1, characterized in that The welding robot includes a welding head capable of welding the battery tube, the motor seat and the middle tube, and a moving component for driving the welding head to move.

10. The welding device according to claim 1, characterized in that The driving mechanism is a motor and a transmission component for transmitting the power of the motor to the platform.

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