Continuous welding equipment for automobile steel ring hub

Abstract

The invention discloses continuous welding equipment for an automobile steel ring hub, and relates to the technical field of welding manufacturing. The automatic welding device comprises a workbench, a positioning structure, a telescopic fixing mechanism, a welding spot position finding mechanism and a welding slag removing assembly. The workbench is provided with a mounting station, the positioning structure is used for radially positioning a steel ring hub, the telescopic fixing mechanism is used for pressing and fixing the hub and driving the hub to reciprocate relative to the workbench, and the welding slag removal assembly is integrated with a welding actuator and a scraping actuator facing the station. Through reciprocating motion of the telescopic fixing mechanism, welding of a to-be-welded section of the hub and scraping and slag removal of a welding spot are achieved in sequence, and seamless connection of the two procedures is achieved. The problems of process separation and low efficiency in the prior art are solved, the production efficiency is improved, the welding quality is stabilized, and the production cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of welding manufacturing technology, and more specifically, to a continuous welding device for automotive steel rims and hubs. Background Technology

[0002] Automotive steel rims and wheels are critical safety components that bear the weight of the entire vehicle and transmit power and braking force. Their welding quality directly affects the vehicle's safety performance. Currently, the welding equipment for automotive steel rims and wheels generally adopts a "separate welding and slag removal" operation mode. That is, after welding, manual labor or additional independent slag removal equipment is required to remove and clean the high-temperature weld points and weld slag at the weld seam.

[0003] This separate operation mode has many technical drawbacks: First, it increases the complexity of the process and the intensity of manual labor, extending the production cycle; second, manual slag removal is inefficient and inconsistent, easily affected by the skill level of the operators, making it difficult to guarantee the quality uniformity of mass-produced products; third, the slag removal process carries the risk of incomplete slag removal, damage to welds or the steel rim hub body; finally, the additional slag removal process also increases equipment investment and production costs, restricting the improvement of production efficiency.

[0004] Therefore, how to provide equipment that can integrate welding and slag removal into a continuous operation to improve production efficiency, ensure welding quality, and reduce production costs has become a pressing technical problem to be solved in this field. Summary of the Invention

[0005] The present invention aims to provide a continuous welding equipment and method for automotive steel rims and hubs, in order to overcome the problems of separation of welding and slag removal processes, low production efficiency, poor quality consistency and risk of workpiece damage in the prior art.

[0006] The technical solution adopted by this invention to solve its technical problem is: This invention provides a continuous welding device for automotive steel rims and hubs, comprising: The workbench has a station for installing steel wheel hubs; A positioning structure is provided at the workstation for radial positioning of the steel wheel hub; A telescopic fixing mechanism is connected to the positioning structure and is used to press and fix the steel wheel hub onto the positioning structure. A solder joint positioning mechanism is located on the side of the workbench opposite to the workstation; and A welding slag removal assembly is installed on the weld point positioning mechanism and has a welding actuator and a scraping actuator that can simultaneously face the work station. The telescopic fixing mechanism has a stroke that allows the positioning structure and the steel rim hub fixed thereon to reciprocate relative to the worktable, so that the section of the steel rim hub to be welded contacts the welding actuator at a first position of the stroke to perform welding, and the weld point formed by the welding contacts the scraping actuator at a second position of the stroke to perform scraping and slag removal.

[0007] Furthermore, the workstation is a through-hole circular opening on the front of the workbench; the positioning structure is coaxially assembled at the circular opening, and the positioning structure includes a coaxially connected annular plate and a positioning ring, the thickness of the positioning ring being less than the thickness of the annular plate; the annular plate is fixedly connected to the telescopic fixing mechanism; the positioning structure has a large cut corresponding to the cross-section of the steel wheel hub.

[0008] Furthermore, mounting openings are symmetrically provided on both sides of the circular opening; there are two sets of telescopic fixing mechanisms, which are respectively assembled in the two mounting openings and fixedly connected to the circular ring plate; the telescopic fixing mechanism has an extended state and a retracted state that allows the positioning structure to extend or retract into the circular opening.

[0009] Furthermore, the telescopic fixing mechanism includes: a first telescopic cylinder disposed within the mounting opening; a mounting base connected to the telescopic end of the first telescopic cylinder, and the inner side of the mounting base being fixedly connected to the annular plate; a second telescopic cylinder disposed on the front side of the mounting base, with its telescopic end facing the axial direction of the annular opening; an arc-shaped plate connected to the telescopic end of the second telescopic cylinder, used to abut against and clamp the outer side of the steel rim hub; and a limiting plate disposed on the front side of the arc-shaped plate, used to axially limit the front side of the steel rim hub.

[0010] Furthermore, the back of the workbench is provided with a cavity communicating with the circular opening; the weld point positioning mechanism is located in the cavity and includes a drive assembly and a rotating ring that is driven by the drive assembly; the rotating ring is coaxially rotatably assembled in the circular opening, and the welding slag removal assembly is installed on the rotating ring.

[0011] Furthermore, the drive assembly includes a drive motor and a gear driven by the drive motor, the gear meshing with an external gear ring, and the swivel ring being fixedly installed inside the external gear ring.

[0012] Furthermore, the welding slag removal assembly includes a U-shaped frame, which is mounted on the weld point positioning mechanism and can move within the large fracture; the welding actuator and the scraping actuator are symmetrically arranged on the U-shaped frame.

[0013] Furthermore, the scraping actuator includes a third telescopic cylinder vertically mounted on the U-shaped frame, and a scraper head connected to the telescopic end of the third telescopic cylinder.

[0014] Furthermore, it also includes a visual detector, which is mounted on the welding slag removal assembly and communicates with the weld point positioning mechanism to identify the cross-sectional position of the steel wheel hub.

[0015] Furthermore, the top of the workbench has an opening that communicates with the workstation, and a fume adsorption device is installed at the opening, with the adsorption end of the fume adsorption device facing the working area of ​​the welding actuator.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention, through a combination of a positioning structure, a telescopic fixing mechanism, a weld point locating mechanism, and a welding slag removal assembly integrating a welding actuator and a scraping actuator, enables the welding and slag removal processes to be seamlessly connected and continuously operated on the same equipment. This is achieved by using the single reciprocating movement of the telescopic fixing mechanism to sequentially deliver the section of the steel wheel hub to be welded to the welding actuator for welding, and then delivering the weld point to the scraping actuator for slag removal. This effectively solves the problems of process separation and low efficiency mentioned in the background art, resulting in a significant improvement in production efficiency, stable control of welding quality, and a reduction in production costs.

[0017] By setting up a gradient positioning structure including a circular plate and a positioning ring, and linking it with a telescopic fixing mechanism, it not only facilitates the rapid assembly and precise radial positioning of the steel wheel hub, but also drives the entire workpiece to move precisely under the drive of the telescopic fixing mechanism, completing welding and slag removal actions, thus simplifying the motion control logic of the equipment.

[0018] By setting up a weld point positioning mechanism and a vision detector, the position of the welding slag removal component can be automatically identified and finely adjusted to ensure precise alignment of welding and slag removal actions. This adapts to steel rims and hubs of different specifications or with assembly errors, improving the equipment's adaptability and operational accuracy.

[0019] By integrating welding actuators and scraping actuators symmetrically arranged on the welding slag removal assembly and utilizing a U-shaped frame structure, the equipment can complete welding and weld point cleaning on both sides of the cross-section in one go, resulting in high work efficiency and a compact structure. Attached Figure Description

[0020] Figure 1 This is a frontal perspective view of the present invention; Figure 2 This is a three-dimensional structural diagram of the back of the present invention; Figure 3 This is a schematic diagram of the overall structure of the present invention; Figure 4 for Figure 1A magnified schematic diagram of the structure of part A in the diagram; Figure 5 for Figure 1 A magnified schematic diagram of the partial structure of B in the diagram; The components include: 1. Workbench; 11. Circular opening; 12. Mounting port; 13. Cavity; 14. Opening; 2. Positioning structure; 21. Circular ring plate; 22. Positioning ring; 23. Large cut; 3. Telescopic fixing mechanism; 31. First telescopic cylinder; 32. Mounting seat; 33. Second telescopic cylinder; 34. Arc plate; 35. Limiting plate; 4. Welding point positioning mechanism; 41. Drive assembly; 411. Drive motor; 412. Gear; 413. External gear ring; 42. Rotary ring; 5. Welding slag removal assembly; 51. Welding actuator; 52. Scraping actuator; 521. Third telescopic cylinder; 522. Scraper head; 53. U-shaped frame; 6. Vision detector; 7. Smoke and dust adsorption device. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The present invention will be further described with reference to the accompanying drawings and embodiments: like Figures 1 to 5 As shown in the figure, this embodiment provides a continuous welding equipment for automotive steel rims and hubs. Its core lies in realizing continuous automated operation of steel rim and hub welding and weld point slag removal through integrated mechanical structure and control logic.

[0022] The continuous welding equipment for automotive steel rims and hubs in this embodiment includes a worktable 1, a positioning structure 2, a telescopic fixing mechanism 3, a weld point positioning mechanism 4, and a welding slag removal assembly 5.

[0023] The workbench 1 serves as the basic support structure of the equipment, and its front side has a workstation for installing steel wheel hubs. In this embodiment, this workstation is specifically a through-hole circular opening 11 on the front side of the workbench 1. Installation openings 12 are symmetrically provided on both sides of the circular opening 11, and a cavity 13 communicating with the circular opening 11 is provided on the back side of the workbench 1, with an opening 14 communicating with the circular opening 11 at the top.

[0024] Specifically, such as Figure 1As shown, the positioning structure 2 is located at the circular opening 11 and is used for radial positioning of the steel rim hub. Specifically, the positioning structure 2 is coaxially assembled at the circular opening 11 and includes a circular ring plate 21 and a positioning ring 22 coaxially fixedly connected. The thickness of the positioning ring 22 is less than the thickness of the circular ring plate 21, and the two together form a stepped positioning surface. During assembly, the back of the steel rim hub abuts against the thicker circular ring plate 21, while its inner cavity fits into the thinner positioning ring 22 with a clearance fit, thereby achieving fast and accurate radial positioning. The positioning structure 2 also has a large cutout 23 corresponding to the cross-section of the steel rim hub, providing operating space for subsequent welding and slag removal operations. In the initial state, the positioning structure 2 protrudes from the front of the circular opening 11 under the action of the telescopic fixing mechanism 3, facilitating quick assembly of the workpiece by the operator.

[0025] Specifically, such as Figure 1 and Figure 4 As shown, the telescopic fixing mechanism 3 is connected to the positioning structure 2 and is used to press and fix the steel rim hub onto the positioning structure 2 and drive it to reciprocate. In this embodiment, there are two sets of telescopic fixing mechanisms 3, which are respectively assembled in two mounting ports 12. Each set of telescopic fixing mechanisms 3 includes a first telescopic cylinder 31, a mounting base 32, a second telescopic cylinder 33, an arc plate 34, and a limiting plate 35. The first telescopic cylinder 31 (such as a hydraulic cylinder or a pneumatic cylinder) is fixed in the mounting port 12, and its telescopic end is connected to the mounting base 32. The inner side of the mounting base 32 is fixedly connected to the annular plate 21. The front of the mounting base 32 is provided with the second telescopic cylinder 33, whose telescopic end is set towards the axial direction of the annular port 11 and is connected to the arc plate 34. The inner arc surface shape of the arc plate 34 is adapted to the outer contour of the steel rim hub and is used to abut and clamp the steel rim hub. The front of the arc plate 34 is provided with a limiting plate 35 that forms an L-shape with the arc plate 34, which is used to axially limit the front of the steel wheel hub to prevent it from moving during the slag removal process.

[0026] In addition, the telescopic fixing mechanism 3 has two states: extended state and retracted state. In the extended state (initial or slag-cleaning position), the first telescopic cylinder 31 extends, driving the mounting base 32, the annular plate 21, and the entire positioning structure 2 forward, making them protrude from the front of the worktable 1 for easy loading. After the steel rim hub is fitted onto the positioning ring 22, the second telescopic cylinder 33 actuates, driving the arc plate 34 to move inward, cooperating with the limiting plate 35 to firmly clamp the steel rim hub. Subsequently, the first telescopic cylinder 31 retracts (i.e., enters the retracted state), driving the fixed steel rim hub and the positioning structure 2 to move backward together. This reciprocating movement is crucial: when it moves to the first position of the stroke (from the previous point to the next point during the retraction process), the section of the steel rim hub to be welded just contacts the stationary welding actuator 51 and completes the welding; when the first telescopic cylinder 31 extends again, driving the workpiece to the second position of the stroke (from the previous point to the next point during the extension process), the high-temperature weld point formed by the welding contacts the stationary scraping actuator 52 and completes the scraping and slag removal. By controlling the extension and retraction of the first telescopic cylinder 31, the continuous actions of welding and slag removal can be precisely controlled.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, the weld point positioning mechanism 4 is located in the cavity 13 on the back of the workbench 1, and is used to drive the welding slag removal assembly 5 to make fine adjustments to its position so as to accurately align it with the cross-section of the steel wheel hub. In this embodiment, the weld point positioning mechanism 4 includes a drive assembly 41 and a rotating ring 42. The drive assembly 41 includes a drive motor 411 and a gear 412 driven by it, and the gear 412 is meshed with an external gear ring 413. The rotating ring 42 is fixedly installed inside the external gear ring 413 and is coaxially mounted in the circular opening 11 through a bearing. The drive motor 411 drives the gear 412 to rotate, thereby driving the external gear ring 413 and the rotating ring 42 to perform precise rotational movements within the circular opening 11.

[0028] Furthermore, the welding slag removal assembly 5 is mounted on the rotating ring 42 of the weld point positioning mechanism 4, specifically including a U-shaped frame 53. The two arms of the U-shaped frame 53 span the two sides of the large cut 23 and can move flexibly within the large cut 23 as the rotating ring 42 rotates. On the U-shaped frame 53, two sets of welding actuators 51 and two sets of scraping actuators 52 are symmetrically arranged vertically. The welding actuators 51 are typically welding guns. In this embodiment, the scraping actuators 52 specifically include a third telescopic cylinder 521 vertically mounted on the U-shaped frame 53, and a scraper head 522 connected to the telescopic end of the third telescopic cylinder 521. The scraper head 522 is preferably made of wear-resistant materials such as hard alloy, and its working edge can be designed as an arc shape adapted to the profile of the steel wheel hub cross-section to improve the slag removal effect and protect the workpiece.

[0029] To further improve alignment accuracy, such as Figure 1As shown, this equipment also includes a vision detector 6. The vision detector 6 is mounted on the U-shaped frame 53 and is communicatively connected to the drive motor 411 of the weld point positioning mechanism 4. Before operation, the vision detector 6 identifies the precise position of the steel wheel hub cross-section in real time and feeds the signal back to the control system. The control system then drives the motor 411 to fine-tune the angles of the rotating ring 42 and the U-shaped frame 53 to ensure that the welding actuator 51 and the scraping actuator 52 can be accurately aligned with the cross-section.

[0030] In addition, in order to improve the working environment, such as Figure 1 As shown, a fume adsorption device 7 is installed at the opening 14 at the top of the workbench 1. The adsorption end of the fume adsorption device 7 faces the welding operation area below, and can effectively absorb the fumes and harmful gases generated during the welding process.

[0031] Based on the above-described specific structure, in the specific implementation process of this invention: First, the steel rim hub is fitted onto the positioning ring 22 of the positioning structure 2 in its extended state. Then, the second telescopic cylinder 33 of the telescopic fixing mechanism 3 is controlled to move, pressing and fixing the steel rim hub through the arc plate 34 and the limiting plate 35. Next, the vision detector 6 identifies the cross-sectional position, and the weld point positioning mechanism 4 drives the welding slag removal assembly 5 to adjust to the optimal alignment posture. Afterward, the first telescopic cylinder 31 is controlled to retract, moving the steel rim hub backward to the first position, so that its cross-section contacts the stationary welding actuator 51 and completes the welding. Finally, the first telescopic cylinder 31 is controlled to extend, moving the steel rim hub forward to the second position, and making the high-temperature weld point formed by welding contact the stationary scraping actuator 52. The scraper head 522, driven by the third telescopic cylinder 521, contacts the weld point, completing the scraping and removal of the weld point. The entire process is continuous and automatic, requiring no manual intervention or workpiece transfer.

[0032] In summary, this invention, through ingenious mechanical structure design and control process, integrates the two independent processes of welding and slag removal into a single clamping cycle of the same equipment, significantly improving production efficiency and work quality, reducing labor costs and equipment investment, and has good industrial application value.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous welding equipment for automotive steel rims and hubs, characterized in that: include: Workbench (1), which is equipped with a station for installing steel wheel hubs; The positioning structure (2) is located at the work station and is used for radial positioning of the steel wheel hub; Telescopic fixing mechanism (3) is connected to the positioning structure (2) and is used to press and fix the steel wheel hub on the positioning structure (2); A welding point positioning mechanism (4) is located on the side of the workbench (1) opposite to the workstation; and The welding slag removal assembly (5) is installed on the weld spot positioning mechanism (4) and has a welding actuator (51) and a scraping actuator (52) that can simultaneously face the work station. The telescopic fixing mechanism (3) has a stroke that allows the positioning structure (2) and the steel ring hub fixed thereon to reciprocate relative to the worktable (1), so that the weldable section of the steel ring hub (A) contacts the welding actuator (51) at the first position of the stroke to perform welding, and the weld point formed by the welding contacts the scraping actuator (52) at the second position of the stroke to perform scraping and slag removal.

2. The continuous welding equipment for automotive steel rims and hubs according to claim 1, characterized in that: The workstation is a through-hole (11) on the front of the workbench (1); the positioning structure (2) is coaxially assembled at the through-hole (11), the positioning structure (2) includes a coaxially connected annular plate (21) and a positioning ring (22), the thickness of the positioning ring (22) is less than the thickness of the annular plate (21); the annular plate (21) is fixedly connected to the telescopic fixing mechanism (3); the positioning structure (2) has a large cut (23) corresponding to the cross-section of the steel wheel hub.

3. The continuous welding equipment for automotive steel rims and hubs according to claim 2, characterized in that: The circular opening (11) has symmetrically provided installation ports (12) on both sides; the telescopic fixing mechanism (3) consists of two sets, which are respectively assembled in the two installation ports (12) and fixedly connected to the circular ring plate (21); the telescopic fixing mechanism (3) has an extended state and a retracted state that allows the positioning structure (2) to extend or retract into the circular opening (11).

4. The continuous welding equipment for automotive steel rims and hubs according to claim 3, characterized in that... : The telescopic fixing mechanism (3) includes: The first telescopic cylinder (31) is located inside the mounting port (12); Mounting base (32) is connected to the telescopic end of the first telescopic cylinder (31), and the inner side of the mounting base (32) is fixedly connected to the annular plate (21); The second telescopic cylinder (33) is located on the front of the mounting base (32), and its telescopic end is oriented toward the axis of the circular opening (11). An arc-shaped plate (34), connected to the telescopic end of the second telescopic cylinder (33), is used to abut and clamp the outer side of the steel wheel hub; and A limiting plate (35) is provided on the front side of the arc-shaped plate (34) for axially limiting the front side of the steel wheel hub.

5. The continuous welding equipment for automotive steel rims and hubs according to claim 2 or 3, characterized in that: The workbench (1) has a cavity (13) on its back that communicates with the circular opening (11); the welding point positioning mechanism (4) is located in the cavity (13) and includes a drive assembly (41) and a rotating ring (42) that is connected to the drive assembly (41) for transmission; the rotating ring (42) is coaxially rotatably assembled in the circular opening (11), and the welding slag removal assembly (5) is installed on the rotating ring (42).

6. The continuous welding equipment for automotive steel rims and hubs according to claim 5, characterized in that: The drive assembly (41) includes a drive motor (411) and a gear (412) driven by the drive motor (411). The gear (412) is meshed with an external gear ring (413), and the swivel ring (42) is fixedly installed inside the external gear ring (413).

7. The continuous welding equipment for automotive steel rims and hubs according to claim 2 or 3, characterized in that: The welding slag removal assembly (5) includes a U-shaped frame (53), which is installed on the weld spot positioning mechanism (4) and can move within the large cut (23); the welding actuator (51) and the scraping actuator (52) are symmetrically arranged on the U-shaped frame (53).

8. The continuous welding equipment for automotive steel rims and hubs according to claim 7, characterized in that: The scraping actuator (52) includes a third telescopic cylinder (521) vertically mounted on the U-shaped frame (53) and a scraper head (522) connected to the telescopic end of the third telescopic cylinder (521).

9. The continuous welding equipment for automotive steel rims and hubs according to claim 1, characterized in that: It also includes a visual detector (6), which is installed on the welding slag removal assembly (5) and is communicatively connected to the weld point positioning mechanism (4) for identifying the cross-sectional position of the steel wheel hub.

10. The continuous welding equipment for automobile steel rims and hubs according to claim 1, characterized in that: The top of the workbench (1) is provided with an opening (14) that communicates with the work station. A fume adsorption device (7) is installed at the opening (14), and the adsorption end of the fume adsorption device (7) is facing the working area of ​​the welding actuator (51).

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