Tool for welding rear auxiliary frame

Abstract

The utility model discloses a tool for welding a rear auxiliary frame, which belongs to the technical field of auxiliary frame welding and comprises a base, a plurality of lifting mechanisms, a plurality of rotating mechanisms and a plurality of inner support fixing mechanisms. The base is provided with a plurality of mounting grooves used for fixing and welding a rear auxiliary frame. The lifting mechanism comprises an air cylinder, and the air cylinder is installed in the installation groove. The rotating mechanism is rotationally connected with the output end of the air cylinder; the inner support fixing mechanism is connected with the rotating mechanism, and the inner support fixing mechanism acts in a mounting hole of the rear auxiliary frame to fix the rear auxiliary frame; according to the design, when the rear auxiliary frame is welded, the welding requirements of different vehicle types can be met.

Description

Technical Field

[0001] This utility model belongs to the field of subframe welding technology, and in particular relates to a tooling for welding a rear subframe. Background Technology

[0002] The rear subframe, also known as the rear axle frame, is an important component of the automotive chassis structure. It is usually located at the rear of the vehicle, connecting the rear suspension system and the body, and undertakes multiple functions such as transmitting power, supporting the body, and absorbing road impacts. As an important component connecting the body and the suspension system, the structural strength and welding quality of the rear subframe directly affect the safety and stability of the entire vehicle.

[0003] However, traditional rear subframe welding fixtures usually have certain limitations; for example, traditional welding fixtures are often designed for specific vehicle models and are difficult to adapt to the rear subframe welding requirements of different vehicle models, resulting in low utilization rate and high cost of the fixtures.

[0004] To address the shortcomings of existing technologies, this utility model provides a tooling for welding a rear subframe, aiming to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a tooling for welding the rear subframe, which can adapt to the welding requirements of different vehicle models when welding the rear subframe.

[0006] To achieve the above objectives, this utility model employs the following technical solution:

[0007] A tooling for welding a rear subframe, comprising:

[0008] The base has multiple mounting slots for fixing the welding of the rear subframe.

[0009] Multiple lifting mechanisms, each lifting mechanism including a cylinder, and the cylinder being installed in the mounting slot;

[0010] Multiple rotating mechanisms, wherein the rotating mechanisms are rotatably connected to the output end of the cylinder;

[0011] And multiple internal support fixing mechanisms, which are connected to the rotating mechanism, and fix the rear subframe by acting in the mounting holes of the rear subframe.

[0012] Preferably, the rotating mechanism includes a rotating shaft rotatably connected to the output end of the cylinder, and the inner diameter of the rotating shaft is smaller than the inner diameter of the piston rod at the output end of the cylinder; a mounting plate is connected to the top of the rotating shaft, a motor for driving the rotating shaft to rotate is mounted on the mounting plate, and the output end of the motor is connected to the top of the rotating shaft; the rotating shaft is also fixedly connected to an adjusting telescopic assembly, and the adjusting telescopic assembly is located between the cylinder output end and the mounting plate.

[0013] The adjustable telescopic assembly includes an adjusting plate one and an adjusting plate two that are nested together; the connecting end of the adjusting plate one is fixedly connected to the rotating shaft one, and the connecting end of the adjusting plate two is connected to the inner support fixing mechanism.

[0014] Preferably, the internal support fixing mechanism includes a guide shaft one and a guide shaft two that are sleeved together; the guide shaft one is connected to the bottom of the connecting end of the adjusting plate two, and the guide shaft one is movably connected to a first adjusting seat, and the guide shaft two is fixedly connected to a second adjusting seat and a fixed seat from top to bottom;

[0015] The first adjusting seat is rotatably connected to multiple first adjusting arms via a second rotating shaft, the second adjusting seat is rotatably connected to multiple second adjusting arms via a second rotating shaft, the fixed seat is rotatably connected to multiple third adjusting arms via a second rotating shaft, and the first adjusting arms, second adjusting arms, and third adjusting arms are all movably connected to adjusting plates via a second rotating shaft.

[0016] Preferably, there are four mounting holes, four lifting mechanisms, four rotating mechanisms, and four internal support fixing mechanisms.

[0017] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0018] 1. This utility model designs a lifting mechanism and a rotating mechanism. First, the lifting mechanism can be adjusted in height as needed by the cylinder to adapt to rear subframes of different heights, thus improving the flexibility and applicability of the tooling. Second, the rotating mechanism can rotate flexibly by connecting the rotating shaft to the cylinder output end to adapt to different welding angles of the rear subframe. Furthermore, with the cooperation of the adjustable telescopic component, the distance between the rotating mechanism and the cylinder output end can be adjusted to further adapt to rear subframes of different sizes.

[0019] 2. This utility model introduces an internal support fixing mechanism. By pushing the first guide shaft towards the second guide shaft through the interlocking guide shaft one and guide shaft two, the distance between the first adjusting arm and the second adjusting arm and the adjusting plate three can be increased, thereby achieving the purpose of the internal support fixing structure fitting into the inner wall of the mounting hole of the rear subframe of the car. This design provides a stable support structure to ensure the stability of the rear subframe during the welding process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a structural schematic diagram of part of the present invention.

[0022] Figure 3 This is a schematic diagram of the internal support fixing structure of this utility model.

[0023] Figure 4 This is a structural schematic diagram of the rear subframe of this utility model.

[0024] in:

[0025] 1. Base; 11. Mounting slot;

[0026] 2. Lifting mechanism; 21. Cylinder;

[0027] 3. Rotating mechanism; 31. Rotating shaft one; 32. Mounting plate; 33. Motor; 34. Adjustable telescopic assembly; 341. Adjusting plate one; 342. Adjusting plate two;

[0028] 4. Internal support fixing mechanism; 41. First adjusting seat; 411. First adjusting arm; 42. Second adjusting seat; 421. Second adjusting arm; 43. Fixed seat; 431. Third adjusting arm; 44. Rotating shaft two; 45. Adjusting plate three; 46. Guide shaft one; 47. Guide shaft two;

[0029] 5. Rear subframe; 51. Mounting holes. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0031] In the description of this utility model, it should be understood that the terms "middle," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] refer to Figures 1-4 This embodiment provides a tooling for welding a rear subframe, including: a base 1, multiple lifting mechanisms 2, multiple rotating mechanisms 3, and multiple internal support fixing mechanisms 4;

[0034] Specifically, the base 1 is provided with a plurality of mounting slots 11 for fixing the welding of the rear subframe 5;

[0035] In this embodiment, the mounting slots 11 are formed near the four opposite corners of the base 1.

[0036] Therefore, the base 1 provides a stable platform for fixing and supporting the entire tooling structure.

[0037] The lifting mechanism 2 includes a cylinder 21, and the cylinder 21 is installed in the mounting groove 11. The cylinder 21 allows the lifting mechanism 2 to adjust its height as needed to adapt to the rear subframe 5 of different heights, thus improving the flexibility and applicability of the tooling.

[0038] Specifically, the rotating mechanism 3 is rotatably connected to the output end of the cylinder 21;

[0039] Furthermore, the rotating mechanism 3 includes a rotating shaft 31 rotatably connected to the output end of the cylinder 21, and the inner diameter of the rotating shaft 31 is smaller than the inner diameter of the piston rod at the output end of the cylinder 21; a mounting plate 32 is connected to the top of the rotating shaft 31, and a motor 33 for driving the rotating shaft 31 to rotate is mounted on the mounting plate 32, and the output end of the motor 33 is connected to the top of the rotating shaft 31; the rotating shaft 31 is also fixedly connected to an adjusting telescopic assembly 34, and the adjusting telescopic assembly 34 is located between the output end of the cylinder 21 and the mounting plate 32.

[0040] The adjustable telescopic assembly 34 includes an adjustable plate 341 and an adjustable plate 342 that are nested together; the connecting end of the adjustable plate 341 is fixedly connected to the rotating shaft 31, and the connecting end of the adjustable plate 342 is connected to the inner support fixing mechanism 4.

[0041] It should be noted that the first adjustment plate 341 and the second adjustment plate 342 are equipped with wires, which are connected to an external control system to control the relative distance between the first adjustment plate 341 and the second adjustment plate 342, thereby more accurately controlling the overall length of the telescopic assembly 34. This design refers to the scheme of an electric intelligent telescopic pole control system and its control method with patent publication number CN110460292A.

[0042] Therefore, the rotating mechanism 3 in this embodiment can precisely control the rotation angle, improving the accuracy and efficiency of welding.

[0043] Specifically, the inner support fixing mechanism 4 is connected to the rotating mechanism 3, and the rear subframe 5 is fixed by acting in the mounting hole 51 of the rear subframe 5.

[0044] Furthermore, the inner support fixing mechanism 4 includes a first guide shaft 46 and a second guide shaft 47 that are sleeved together; the first guide shaft 46 is connected to the bottom of the connecting end of the second adjusting plate 342, and the first guide shaft 46 is movably connected to a first adjusting seat 41, and the second guide shaft 47 is fixedly connected to a second adjusting seat 42 and a fixed seat 43 from top to bottom.

[0045] The first adjusting seat 41 is rotatably connected to a plurality of first adjusting arms 411 via a second rotating shaft 44, the second adjusting seat 42 is rotatably connected to a plurality of second adjusting arms 421 via a second rotating shaft 44, the fixed seat 43 is rotatably connected to a plurality of third adjusting arms 431 via a second rotating shaft 44, and the first adjusting arms 411, the second adjusting arms 421 and the third adjusting arms 431 are all movably connected to an adjusting plate 45 via a second rotating shaft 44.

[0046] Therefore, the inner support fixing mechanism 4 in this embodiment can be finely adjusted to adapt to the specific mounting hole 51 position of the rear subframe 5, providing a stable support structure and further ensuring the stability of the rear subframe 5 during the welding process.

[0047] Furthermore, the mounting hole 51, the lifting mechanism 2, the rotating mechanism 3, and the inner support fixing mechanism 4 are all provided with four.

[0048] Working principle: Before welding the rear subframe 5, the rear subframe 5 is placed near the center of the base 1. Then, the cylinder 21 is activated to raise the entire fixture to a predetermined height according to the different rear subframes 5. Then, the motor 33 is activated to drive the rotating mechanism 3 to rotate. The overall length of the telescopic component 34 is adjusted by the external control system until the inner support fixing mechanism 4 is aligned directly above the rear subframe 5. Then, the piston rod of the cylinder 21 is controlled to move downward so that the inner support fixing mechanism 4 is placed in the mounting hole 51 of the rear subframe 5. At this time, it is necessary to manually or with the help of auxiliary tools to support the bottom of the inner support fixing mechanism 4. Then, the guide shaft 46 of the inner support fixing mechanism 4 is pushed towards the guide shaft 47, so that the distance between the first adjusting arm 411 and the second adjusting arm 421 and the adjusting plate 45 increases until the inner support fixing structure is in contact with the inner wall of the mounting hole 51 of the rear subframe 5 of the car, thus realizing the welding and fixing of the rear subframe 5.

[0049] It should be noted that the heights of the front and rear mounting holes 51 of the rear subframe 5 are sometimes inconsistent. In this case, it is necessary to control the cylinders 21 corresponding to the two sets of mounting holes 51 separately, and control the lifting height of the two sets of cylinders 21 separately.

[0050] In summary, this utility model, through the combination of the above structures, can adapt to the rear subframe 5 of different vehicle models, improve the versatility and utilization of tooling, reduce costs, and at the same time improve welding quality, further enhancing the safety and stability of the entire vehicle.

[0051] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A tooling for welding a rear subframe, characterized in that, include: The base (1) has multiple mounting slots (11) for fixing the welding of the rear subframe (5); Multiple lifting mechanisms (2), each lifting mechanism (2) including a cylinder (21), and the cylinder (21) is installed in the mounting groove (11); Multiple rotating mechanisms (3) are rotatably connected to the output end of the cylinder (21); And multiple internal support fixing mechanisms (4), which are connected to the rotating mechanism (3) and fix the rear subframe (5) by acting in the mounting holes (51) of the rear subframe (5).

2. The tooling for welding the rear subframe according to claim 1, characterized in that, The rotating mechanism (3) includes a rotating shaft (31) rotatably connected to the output end of the cylinder (21), and the inner diameter of the rotating shaft (31) is smaller than the inner diameter of the piston rod at the output end of the cylinder (21); a mounting plate (32) is connected to the top of the rotating shaft (31), and a motor (33) for driving the rotating shaft (31) to rotate is mounted on the mounting plate (32), and the output end of the motor (33) is connected to the top of the rotating shaft (31); the rotating shaft (31) is also fixedly connected to an adjusting telescopic assembly (34), and the adjusting telescopic assembly (34) is located between the output end of the cylinder (21) and the mounting plate (32); The adjustable telescopic assembly (34) includes an adjustable plate one (341) and an adjustable plate two (342) that are nested together; the connecting end of the adjustable plate one (341) is fixedly connected to the rotating shaft one (31), and the connecting end of the adjustable plate two (342) is connected to the inner support fixing mechanism (4).

3. The tooling for welding the rear subframe according to claim 2, characterized in that, The internal support fixing mechanism (4) includes a guide shaft one (46) and a guide shaft two (47) that are sleeved together; the guide shaft one (46) is connected to the bottom of the connecting end of the adjusting plate two (342), and the guide shaft one (46) is movably connected to a first adjusting seat (41), and the guide shaft two (47) is fixedly connected to a second adjusting seat (42) and a fixed seat (43) from top to bottom; The first adjusting seat (41) is rotatably connected to a plurality of first adjusting arms (411) via a second rotating shaft (44), the second adjusting seat (42) is rotatably connected to a plurality of second adjusting arms (421) via a second rotating shaft (44), the fixed seat (43) is rotatably connected to a plurality of third adjusting arms (431) via a second rotating shaft (44), and the first adjusting arm (411), the second adjusting arm (421) and the third adjusting arm (431) are all movably connected to an adjusting plate (45) via a second rotating shaft (44).

4. The tooling for welding the rear subframe according to claim 1, characterized in that, The mounting hole (51), the lifting mechanism (2), the rotating mechanism (3), and the inner support fixing mechanism (4) are all provided with four.

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