An automotive OEM automated welding fixture

Abstract

The application provides an automobile main machine factory automatic welding positioning clamp and belongs to the technical field of automobile manufacturing clamps. The automobile main machine factory automatic welding positioning clamp comprises a base, a controller fixed to the front of the base, a power module fixed to the side of the base, a rotating disc arranged above the base, through holes penetrating up and down and arranged around the upper end of the rotating disc, four positioning pins arranged around the upper end of the rotating disc, a rotating support assembly arranged between the rotating disc and the base and used for driving the rotating disc to rotate and quickly switching the positioning pins, and four positioning installation assemblies arranged around the upper end of the rotating disc. The clamp is cooperatively worked by automatic servo motors, electric telescopic rods and drive motors, automatic switching of the positioning pins is realized, a person is not needed to be arranged to be responsible for the switching work of the positioning pins every shift, manpower investment is greatly reduced, and human cost is reduced.

Description

Technical Field

[0001] This application belongs to the field of automotive manufacturing fixture technology, specifically relating to an automated welding and positioning fixture for automotive OEMs. Background Technology

[0002] In today's automotive OEM production system, welding, as one of the four major processes in automobile manufacturing, is undeniably crucial. With the rapid development of the automotive industry and the increasing diversification of consumer demands, OEMs are constantly launching new models to seize market share. This necessitates welding production lines possessing high flexibility and rapid changeover capabilities. Positioning fixtures, as key equipment in the welding process ensuring precise component positioning, directly impact welding quality and production efficiency.

[0003] In existing technologies, traditional welding positioning fixtures have significant shortcomings in meeting the welding needs of multiple vehicle models and multiple parts. In particular, the difficulty in changing positioning pins has become a key issue restricting production efficiency. Because different vehicle models have different parts sizes, shapes, and welding requirements, positioning pins need to be changed frequently. Existing switching methods are cumbersome and often require operators to manually disassemble the original positioning pins, which not only easily damages parts but is also time-consuming and labor-intensive. Moreover, the operation process is not only labor-intensive and dependent on skilled operators, but also prone to human error leading to inaccurate positioning, welding defects, and increased rework costs and quality risks.

[0004] To address the above problems, this application designs an automated welding and positioning fixture for automotive OEMs to solve technical challenges such as difficulty in switching positioning pins, time-consuming and labor-intensive switching of easily damaged parts, and inaccurate positioning. Utility Model Content

[0005] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, this application designs an automated welding and positioning fixture for automotive OEMs to improve the efficiency of positioning pin switching, prevent component damage, save time and effort, and ensure accurate positioning.

[0007] This application provides an automated welding positioning fixture for automotive OEMs, comprising: a base; a controller fixed to the front of the base; a power module fixed to the side of the base; a rotating disk located above the base, with through holes extending vertically around its upper perimeter; four positioning pins located around the upper perimeter of the rotating disk; a rotating support assembly located between the rotating disk and the base for rotating the rotating disk and quickly switching the positioning pins; four positioning mounting assemblies located around the upper perimeter of the rotating disk for welding positioning of automotive parts to improve positioning accuracy and welding quality; a mounting rod fixed to the middle of the upper perimeter of the rotating disk; an L-shaped bracket fixed to the upper part of the base; a guide tube fixed to the front of the inner side of the L-shaped bracket; and a locking positioning assembly located directly below the guide tube for anti-rotation positioning of the rotating disk to improve welding stability.

[0008] In some possible embodiments, a mounting plate is fixed to the back of the base.

[0009] In some possible embodiments, the rotating support assembly includes: a support column fixed to the upper middle part of the base; a servo motor fixed to the upper end of the support column, and a rotating disk fixed to the power end of the servo motor.

[0010] In some possible embodiments, the controller is signal-connected to the servo motor, and both the controller and the servo motor are electrically connected to the power module.

[0011] In some possible embodiments, the positioning and mounting components include: positioning rods, each having two rods and fixed to the upper end of the rotating disk, with the through holes located between two adjacent positioning rods; baffles, located outside the through holes and above the rotating disk, with two pressure grooves on the side of each baffle; and mounting bases, each covering the through holes, with the positioning rods fixed to the middle of the upper end of the mounting base.

[0012] In some possible embodiments, the upper end of the mounting base has through-holes on both sides, and the positioning rod is inserted into the positioning holes.

[0013] In some possible embodiments, the positioning and mounting assembly further includes: a concave pressure plate disposed on the upper part of the rotating disk, and the end of the concave pressure plate being pressed into the pressure groove; and an electric push-pull rod fixed to the outer wall of the mounting rod, wherein the concave pressure plate is fixed to the telescopic end of the adjacent electric push-pull rod.

[0014] In some possible embodiments, the controller is signal-connected to the electric push-pull rod, and the electric push-pull rod is electrically connected to the power module.

[0015] In some possible embodiments, the locking and positioning assembly includes: a lock head that slides longitudinally through the bottom of the L-shaped bracket, the upper part of the outer periphery of the lock head being threaded, and the bottom of the mounting base having a threaded hole matching the thread of the lock head; two support rods that are distributed left and right and fixed between the base and the L-shaped bracket; an electric telescopic rod with its telescopic end fixed to the lower part of the lock head; and a drive motor that is fixed to the upper end of the base, with the lower end of the electric telescopic rod fixed to the power end of the drive motor.

[0016] In some possible embodiments, both the electric telescopic pole and the drive motor are signal-connected to the controller, and both the electric telescopic pole and the drive motor are electrically connected to the power module.

[0017] Compared with the prior art, the technical solution provided in this application has at least the following beneficial effects: This application provides an automated welding positioning fixture for automotive OEMs. This fixture utilizes automated servo motors, electric telescopic rods, and drive motors to automatically switch positioning pins, eliminating the need for dedicated personnel on each shift. This significantly reduces manpower and labor costs. Furthermore, the entire switching process is precisely controlled by a controller, preventing inaccurate positioning due to human error. The positioning pins are accurately positioned, greatly reducing welding defects such as incomplete welds and missed welds caused by positioning deviations, effectively improving welding quality and reducing subsequent rework costs. It also features a rapid automatic positioning pin switching mechanism, significantly shortening the switching time compared to traditional slow manual switching, accelerating the production line cycle, and meeting the demands of modern automotive manufacturing for efficient, large-scale production. In summary, this improves production efficiency, effectively meets the requirements of high-efficiency production, enhances positioning pin switching efficiency, prevents component damage, saves time and labor, and ensures accurate positioning.

[0018] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the overall structure of an automated welding and positioning fixture for an automotive OEM, according to some embodiments of this application. Figure 2 This is a partially enlarged structural diagram of a positioning fixture for automated welding in an automotive OEM, according to some embodiments of this application. Figure 3 This is a schematic diagram of the rotating disk structure of an automated welding positioning fixture for an automotive OEM, according to some embodiments of this application. Figure 4 This is a schematic diagram of the mounting base structure of an automated welding positioning fixture for an automotive OEM, according to some embodiments of this application; Figure 5 This is a schematic diagram of the bottom structure of the mounting base of an automated welding positioning fixture for an automotive OEM, according to some embodiments of this application. Figure 6 This is a schematic diagram of a concave pressure plate structure of an automated welding positioning fixture for an automotive OEM, according to some embodiments of this application.

[0020] 1. Base; 2. Controller; 3. Power module; 4. Mounting plate; 5. Support column; 6. Servo motor; 7. Rotating disk; 8. Through hole; 9. Positioning rod; 10. Baffle; 11. Mounting seat; 12. Positioning pin; 13. Concave pressure plate; 14. Electric push-pull rod; 15. Mounting rod; 16. L-shaped bracket; 17. Guide tube; 18. Lock head; 19. Support rod; 20. Electric telescopic rod; 21. Drive motor. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0023] The following reference Figures 1 to 6 This application describes an automated welding positioning fixture for automotive OEMs, provided according to some embodiments.

[0024] Please see Figures 1 to 6 This application provides an automated welding positioning fixture for automotive OEMs, which includes, in some embodiments: a base 1; a controller 2 fixed to the front of the base 1; a power module 3 fixed to the side of the base 1; a rotating disk 7 located above the base 1, with through holes 8 extending vertically around its upper perimeter; four positioning pins 12 located around the upper perimeter of the rotating disk 7; a rotating support assembly located between the rotating disk 7 and the base 1, used to rotate the rotating disk 7 and quickly switch the positioning pins 12; a mounting rod 15 fixed to the middle of the upper end of the rotating disk 7; an L-shaped bracket 16 fixed to the upper part of the base 1; a guide tube 17 fixed to the front of the inner side of the L-shaped bracket 16; and a mounting plate 4 fixed to the rear of the base 1.

[0025] In this embodiment, the installation and debugging are performed first: the base 1 is fixed in a suitable working position by the mounting plate 4, and the wiring of the controller 2, power module 3, servo motor 6, electric push-pull rod 14, electric telescopic rod 20 and drive motor 21 are connected to ensure that each component can be powered on and operated normally. According to the actual welding requirements, the corresponding model of positioning pin 12 is installed on different mounting seats 11, and the mounting seat 11 is movably inserted into the positioning rod 9 through the positioning hole. The corresponding electric push-pull rod 14 pushes the concave pressure plate 13 to insert into the pressure groove on the corresponding baffle 10, so that the concave pressure plate 13 presses the baffle 10, which is conducive to the effect of conveniently positioning and fixing the mounting seat 11 and the positioning pin 12.

[0026] In some embodiments, the rotating support assembly includes: a support column 5 fixed to the upper middle part of the base 1; a servo motor 6 fixed to the upper end of the support column 5, and a rotating disk 7 fixed to the power end of the servo motor 6; the controller 2 is signal-connected to the servo motor 6, and both the controller 2 and the servo motor 6 are electrically connected to the power module 3.

[0027] In this embodiment, when the welding production line of the automobile OEM needs to switch the positioning pin 12 to adapt to different vehicle models or welding process requirements, since the servo motor 6, electric push-pull rod 14, electric telescopic rod 20 and drive motor 21 are all connected to the controller 2 (the controller 2 is a relatively mature existing device, so the specific working principle of the controller 2 will not be described in detail in this application), the operator inputs the instruction to switch the positioning pin 12 through the controller 2. After receiving the instruction, the controller 2 first controls the servo motor 6 to run. The servo motor 6 drives the rotating disk 7 to rotate on the base 1. When the through hole 8 with the required model positioning pin 12 rotates to the position corresponding to the guide tube 17 and the electric telescopic rod 20, the servo motor 6 stops rotating. Therefore, it is convenient to move the corresponding model positioning pin 12 to the desired position for subsequent use.

[0028] In some embodiments, a locking and positioning assembly is located directly below the guide tube 17 to prevent rotation of the rotating disk 7 and improve welding stability. The locking and positioning assembly includes: a locking head 18, which slides longitudinally through the bottom of the L-shaped bracket 16, with threads on the upper part of the outer periphery of the locking head 18, and a threaded hole matching the threads of the locking head 18 at the bottom of the mounting base 11; two support rods 19, which are distributed left and right and fixed between the base 1 and the L-shaped bracket 16; an electric telescopic rod 20, with its telescopic end fixed to the lower part of the locking head 18; and a drive motor 21, which is fixed to the upper end of the base 1, with the lower end of the electric telescopic rod 20 fixed to the power end of the drive motor 21. The electric telescopic rod 20 and the drive motor 21 are both signal-connected to the controller 2, and both the electric telescopic rod 20 and the drive motor 21 are electrically connected to the power module 3.

[0029] In this embodiment, the controller 2 then controls the electric telescopic rod 20 to extend. The electric telescopic rod 20 drives the locking head 18 at its telescopic end to move upward and accurately insert into the through hole 8. After the locking head 18 is inserted into the through hole 8, it continues to move upward and is movably connected with the rotating disk 7 at the top of the through hole 8. At this time, the controller 2 controls the drive motor 21 to start. When the drive motor 21 rotates, it drives the electric telescopic rod 20 and the locking head 18 to rotate together. Since the locking head 18 is threadedly matched with the threaded hole at the bottom of the mounting base 11, it is beneficial to lock the locking head 18 and the mounting base 11 firmly. Under the premise of preventing the rotating disk 7 from accidentally rotating the positioning pin, it is convenient to fix the mounting base 11 and the positioning pin 12 at the corresponding position on the upper part of the locking head 18.

[0030] In some embodiments, the positioning and mounting components are provided in four sets, all located around the upper perimeter of the rotating disk 7, for welding positioning of automotive parts to improve positioning accuracy and welding quality. Each positioning and mounting component includes: positioning rods 9, two of which are fixed to the upper end of the rotating disk 7, with through holes 8 located between adjacent positioning rods 9; baffles 10, located outside the through holes 8 and above the rotating disk 7, with two pressure grooves on their sides; and mounting bases 11, each covering the through holes 8, with positioning pins 12 fixed to the top. The positioning rod 9 is inserted into the positioning hole on both sides of the upper end of the mounting base 11, and the positioning mounting assembly also includes: a concave pressure plate 13, which is located on the upper part of the rotating disk 7 and the end of the concave pressure plate 13 is pressed into the pressure groove; an electric push-pull rod 14, which is fixed to the outer wall of the mounting rod 15, and the concave pressure plate 13 is fixed to the telescopic end of the adjacent electric push-pull rod 14; the controller 2 is signal connected to the electric push-pull rod 14 and the electric push-pull rod 14 is electrically connected to the power module 3.

[0031] In this embodiment, the controller 2 then controls the electric push-pull rod 14 to retract. The telescopic end of the electric push-pull rod 14 drives the concave pressure plate 13 away from the baffle 10. After the baffle 10 is released from the pressure of the concave pressure plate 13, the controller 2 controls the electric telescopic rod 20 to extend again. The electric telescopic rod 20 drives the mounting base 11 to move upward through the lock head 18. During the upward movement of the mounting base 11, the corresponding positioning pin 12 is gradually inserted into the guide tube 17. At this time, the positioning pin 12 of the required model has moved to the working position for subsequent welding positioning of automotive parts.

[0032] In some embodiments, a rotating support assembly is disposed between the rotating disk 7 and the base 1, used to drive the rotating disk 7 to rotate and quickly switch the positioning pin 12; a positioning mounting assembly is provided in four sets, all disposed around the upper perimeter of the rotating disk 7, used for welding positioning of automotive parts to improve positioning accuracy and welding quality; a locking positioning assembly is disposed directly below the guide tube 17, used to prevent the rotating disk 7 from rotating and to improve welding stability. In this embodiment, when the positioning pin 12 needs to be replaced, the electric telescopic rod 20 retracts and moves the mounting base 11 to its initial position. Then, the electric push-pull rod 14 is extended. The telescopic end of the electric push-pull rod 14 moves the concave pressure plate 13 toward the mounting base 11. The concave pressure plate 13 moves to the position of the baffle 10, and the end of the concave pressure plate 13 is inserted into and pressed into the pressure groove, achieving the effect of pressing the mounting base 11. Then, the controller 2 controls the drive motor 21 to start in reverse. The drive motor 21 drives the electric telescopic rod 20 and the lock head 18 to rotate in reverse. This process separates and unlocks the lock head 18 from the threaded hole at the bottom of the mounting base 11. Then, the controller 2 controls the electric telescopic rod 20 to retract, causing the lock head 18 at its telescopic end to disengage from the through hole 8. Finally, the controller 2 again controls the servo motor 6 to operate via a command. The servo motor 6 drives the rotating disk 7 to rotate the through hole 8 of the replacement positioning pin 12 of the required model to the position corresponding to the guide tube 17 and the electric telescopic rod 20. In summary, this process is repeated, and then the connection work between the lock head 18 and the rotating disk 7 is repeated, and a new welding positioning work is performed.

[0033] In summary, this fixture achieves automatic switching of the positioning pin 12 through the coordinated operation of automated servo motor 6, electric telescopic rod 20, and drive motor 21. This eliminates the need for dedicated personnel to handle the positioning pin 12 switching on each shift, significantly reducing manpower input and labor costs. Furthermore, the entire switching process is precisely controlled by controller 2, avoiding inaccurate positioning caused by human error. The positioning pin 12 is accurately positioned, greatly reducing welding defects such as incomplete or missed welds caused by positioning deviations, effectively improving welding quality and reducing subsequent rework costs. It also features a rapid automatic positioning pin 12 switching mechanism, significantly shortening the switching time compared to traditional slow manual switching, accelerating the production line cycle, and meeting the demands of modern automotive manufacturing for efficient, large-scale production. Therefore, it improves production efficiency, effectively meets the needs of high-efficiency production, and is beneficial for improving positioning pin switching efficiency, preventing component damage, saving time and effort, and ensuring accurate positioning.

[0034] In this application, it should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly 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.

[0038] In this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automated welding and positioning fixture for automotive OEMs, characterized in that, include: Base (1); The controller (2) is fixed to the front of the base (1); The power module (3) is fixed to the side of the base (1); A rotating disk (7) is located above the base (1), and through holes (8) are opened around the upper part of the rotating disk (7). Positioning pin (12) has four pins, all located around the top of the rotating disk (7); A rotating support assembly is located between the rotating disk (7) and the base (1) to drive the rotating disk (7) to rotate and quickly switch the positioning pin (12). The positioning and installation components are provided in four sets, all located around the upper end of the rotating disk (7), for welding positioning of automotive parts to improve positioning accuracy and welding quality; Mounting rod (15) is fixed to the middle of the upper end of rotating disk (7); L-shaped bracket (16) is fixed to the upper part of the base (1); The guide tube (17) is fixed to the front part of the inner side of the L-shaped bracket (16); The locking and positioning assembly is located directly below the guide tube (17) and is used to prevent the rotating disk (7) from rotating to improve welding stability.

2. The automated welding positioning fixture for automotive OEMs according to claim 1, characterized in that, The base (1) is fixed with a mounting plate (4) at the rear.

3. The automated welding positioning fixture for automotive OEMs according to claim 1, characterized in that, The rotary support assembly includes: Support column (5) is fixed to the middle of the upper end of base (1); The servo motor (6) is fixed to the upper end of the support column (5), and the rotating disk (7) is fixed to the power end of the servo motor (6).

4. The automated welding positioning fixture for automotive OEMs according to claim 3, characterized in that, The controller (2) is signal-connected to the servo motor (6), and both the controller (2) and the servo motor (6) are electrically connected to the power supply module (3).

5. The automated welding positioning fixture for automotive OEMs according to claim 1, characterized in that, The positioning and installation components all include: The positioning rods (9) are provided in pairs and are fixed to the upper end of the rotating disk (7). The through holes (8) are located between two adjacent positioning rods (9). A baffle (10) is provided outside the through hole (8) and above the rotating disk (7). Two pressure grooves are opened on the side of the baffle (10). The mounting bases (11) are all placed above the through holes (8), and the positioning pins (12) are all fixed to the middle of the upper end of the mounting bases (11).

6. The automated welding positioning fixture for automotive OEMs according to claim 5, characterized in that, The mounting base (11) has a vertically penetrating positioning hole on both sides of its upper end, and the positioning rod (9) is inserted into the positioning hole.

7. The automated welding positioning fixture for automotive OEMs according to claim 5, characterized in that, Each of the positioning and installation components also includes: A concave pressure plate (13) is provided on the upper part of the rotating disk (7), and the end of the concave pressure plate (13) is pressed into the pressure groove; The electric push-pull rod (14) is fixed to the outer wall of the mounting rod (15), and the concave pressure plate (13) is fixed to the telescopic end of the adjacent electric push-pull rod (14).

8. The automated welding positioning fixture for automotive OEMs according to claim 7, characterized in that, The controller (2) is signal-connected to the electric push-pull rod (14), and the electric push-pull rod (14) is electrically connected to the power module (3).

9. The automated welding positioning fixture for automotive OEMs according to claim 1, characterized in that, The locking and positioning assembly includes: The lock head (18) slides longitudinally through the bottom of the L-shaped bracket (16). The upper part of the outer periphery of the lock head (18) is provided with threads, and the bottom of the mounting base (11) has a threaded hole that matches the threads of the lock head (18). The support rod (19) has two rods that are distributed on the left and right and are fixed between the base (1) and the L-shaped bracket (16); The electric telescopic rod (20) has its telescopic end fixed to the lower part of the lock head (18); The drive motor (21) is fixed to the upper end of the base (1), and the lower end of the electric telescopic rod (20) is fixed to the power end of the drive motor (21).

10. The automated welding positioning fixture for automotive OEMs according to claim 1, characterized in that, The electric telescopic rod (20) and the drive motor (21) are both connected to the controller (2) via signal, and the electric telescopic rod (20) and the drive motor (21) are both electrically connected to the power module (3).

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