Automobile rear axle housing cover assembly welding positioning device

Abstract

The utility model discloses a kind of automobile rear axle housing cover assembly welding positioning device, including base, top plate and rotating rod, the top end of top plate is circumferentially arrayed and respectively provided with four No.1 rectangular grooves and No.2 rectangular grooves, the inner side of No.2 rectangular groove is rotatably connected with screw rod, the surface of screw rod is penetrated with threaded block and is threadedly connected with threaded block, the top end of threaded block is fixedly connected with auxiliary clamp block;The inner side of base is circumferentially arrayed and provided with four rotating rods, rotating rod is rotatably connected with support block by bearing seat, support block is fixedly connected on the inner bottom surface of base, rotating rod end fixedly connected No.1 bevel gear and the No.1 bevel gear of adjacent rotating rod are intermeshed, the surface center of rotating rod is fixedly connected with main clamp block;The utility model is by being provided with auxiliary clamp block on the surface of top plate, so as to be replaced main clamp block when needing to weld the shielding position of main clamp block to clamp shell cover, without adjusting shell cover position, improve the convenience and welding efficiency of device.

Description

Technical Field

[0001] This utility model relates to the field of welding positioning technology, specifically a welding positioning device for automotive rear axle housing assembly. Background Technology

[0002] The rear axle housing cover is a component installed on the rear axle housing. Together with the rear axle housing, it forms a sealed space to support and protect transmission components such as the main reducer, differential, and half shafts. The manufacturing process of the rear axle housing cover typically includes casting, stamping, and welding. During the welding process, a positioning device is required for fixation.

[0003] Patent No. CN 216576339 U discloses a welding positioning device for automotive rear axle housing cover assembly. By installing a lifting device, a buffer mechanism, and a clamping device, the device can quickly fix and position the automotive rear axle housing cover, facilitating the welding of the automotive rear axle housing cover assembly and improving the processing efficiency of the automotive rear axle housing cover assembly welding. A control console is installed on the surface of the processing base to facilitate the start and stop of the lifting device and the clamping device, observe the usage of the lifting device and the clamping device, monitor in real time, and promptly detect and handle any faults that occur during the use of the lifting device and the clamping device.

[0004] However, during use, the clamping device comes into contact with the surface of the rear axle housing cover, creating a certain obstruction. This obstruction makes welding difficult, requiring the rear axle housing cover to be repositioned and re-clamped, which is cumbersome and time-consuming, affecting welding efficiency. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0005] The purpose of this utility model is to provide a welding positioning device for automotive rear axle housing cover assembly, which solves the problem in the background art where the clamping device contacts the surface of the rear axle housing cover, obstructing the welding of the part, requiring repositioning and re-clamping, which is troublesome and time-consuming.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a welding positioning device for an automotive rear axle housing assembly, comprising a base, a top plate, and rotating rods. The top of the top plate has four rectangular slots (number one and number two) arranged in a circumferential array. A lead screw is rotatably connected to the inner side of the number two rectangular slot. A threaded block passes through the surface of the lead screw and is threadedly connected to the threaded block. A secondary clamping block is fixedly connected to the top of the threaded block. The inner side of the base has four rotating rods arranged in a circumferential array. Each rotating rod is rotatably connected to a support block via a bearing seat. The support block is fixedly connected to the inner bottom surface of the base. A first bevel gear fixedly connected to the end of each rotating rod meshes with a first bevel gear of an adjacent rotating rod. A main clamping block is fixedly connected to the center of the surface of each rotating rod.

[0007] In this technical solution, when the main clamping block blocks the area, the auxiliary clamping block can move radially along the lead screw to the center of the top plate to replace the main clamping block for clamping and positioning. This eliminates the need to disassemble or adjust the workpiece, significantly reducing welding interruption time and improving welding efficiency. Furthermore, the four rotating rods inside the base are linked by bevel gears, requiring only a single motor to synchronously control the opening and closing of the main clamping block, simplifying the transmission structure and reducing energy consumption and manufacturing costs.

[0008] Preferably, one end of one of the rotating rods passes through the side wall of the base and is fixedly connected to the output end of the drive shaft of the first motor, the first motor being fixedly connected to the outer side wall of the base.

[0009] Preferably, a support frame is fixedly connected to the outer side wall of the base, an electric actuator is fixedly connected to the top of the support frame, the telescopic end of the electric actuator passes through the surface of the support frame and is fixedly connected to the pressure plate, and four pressure rods are fixedly connected in a circular array on the bottom edge of the pressure plate.

[0010] Preferably, a central groove is provided at the top center of the top plate, one end of the lead screw passes through the second rectangular groove and is located inside the central groove, and the end of the lead screw located inside the central groove is fixedly connected to the second bevel gear, and the four second bevel gears inside the central groove mesh in pairs.

[0011] Preferably, a second motor is fixedly connected to the outer wall of the top plate, and the output end of the drive shaft of the second motor is fixedly connected to one end of the lead screw.

[0012] Preferably, a rubber block is fixedly connected to the bottom end of the pressure rod, and anti-slip pads are provided on the surfaces of both the main clamping block and the auxiliary clamping block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model achieves dynamic switching of the clamping area through the coordinated design of the main clamping block and the auxiliary clamping block. When the welding main clamping block blocks the area, the auxiliary clamping block can move radially along the lead screw to the center of the top plate, replacing the main clamping block to complete the clamping and positioning. There is no need to disassemble or adjust the workpiece, which significantly reduces welding interruption time and improves processing efficiency.

[0015] 2. This utility model has four rotating rods set on the inner side of the base. The four rotating rods inside the base are linked by bevel gears. Only a single motor is needed to drive the opening and closing of the main clamping block synchronously. This simplifies the transmission structure, reduces energy consumption and manufacturing costs, and enhances the reliability and practicality of the device. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is an overall view of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the pressure plate of this utility model;

[0019] Figure 3 This is a partial structural schematic diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0021] In the diagram: 1. Base; 101. Top plate; 2. Support frame; 3. Electric actuator; 4. Pressure plate; 5. Pressure rod; 501. Rubber block; 6. No. 1 rectangular slot; 7. Support block; 8. Rotating rod; 801. No. 1 bevel gear; 9. Main clamping block; 10. No. 1 motor; 11. No. 2 rectangular slot; 12. Lead screw; 121. No. 2 motor; 122. No. 2 bevel gear; 13. Threaded block; 14. Secondary clamping block; 15. Center slot. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description will further elaborate on them in conjunction with specific embodiments.

[0023] A welding positioning device for a rear axle housing cover assembly of an automobile, see [reference] Figures 1 to 4 The system includes a base 1, a top plate 101, and rotating rods 8. The top of the top plate 101 has four rectangular slots 6 and 11 arranged in a circular array. A lead screw 12 is rotatably connected to the inner side of the second rectangular slot 11. A threaded block 13 passes through the surface of the lead screw 12 and is threadedly connected to the threaded block 13. A secondary clamping block 14 is fixedly connected to the top of the threaded block 13. The inner side of the base 1 has four rotating rods 8 arranged in a circular array. The rotating rods 8 are rotatably connected to the support block 7 through a bearing seat. The support block 7 is fixedly connected to the inner bottom surface of the base 1. A first bevel gear 801 fixedly connected to the end of the rotating rod 8 meshes with the first bevel gear 801 of the adjacent rotating rod 8. A main clamping block 9 is fixedly connected to the center of the surface of the rotating rod 8.

[0024] Specifically, such as Figure 4As shown, one end of one of the rotating rods 8 passes through the side wall of the base 1 and is fixedly connected to the output end of the drive shaft of the first motor 10. The first motor 10 is fixedly connected to the outer side wall of the base 1. There are three types of rotating rods 8: the first type has a first bevel gear 801 at both ends; the second type has a first bevel gear 801 at only one end; and the third type has a first bevel gear 801 at one end and the other end is extended to connect to the drive shaft of the first motor 10. When the first motor 10 drives the third type of rotating rod 8 to rotate, the other two types will also rotate simultaneously under the drive of the first bevel gear 801, thereby causing the main clamping block 9 to rotate and clamp the cover. The whole process only requires one motor to drive, which simplifies the transmission structure and reduces energy consumption and manufacturing costs.

[0025] It is worth noting that, such as Figure 1 and Figure 2 As shown, a support frame 2 is fixedly connected to the outer wall of the base 1, and an electric push rod 3 is fixedly connected to the top of the support frame 2. The telescopic end of the electric push rod 3 passes through the surface of the support frame 2 and is fixedly connected to the pressure plate 4. Four pressure rods 5 are fixedly connected in a circular array on the bottom edge of the pressure plate 4. Before the main clamping block 9 releases its grip on the shell cover, the electric push rod 3 starts to drive the pressure plate to descend, applying pressure to the shell cover from above, thereby cooperating with the auxiliary clamping block 14 to position and fix the shell cover, ensuring the stability of the shell cover after the main clamping block 9 is released.

[0026] It is worth noting that, such as Figure 3 As shown, a central groove 15 is provided at the top center of the top plate 101. One end of the lead screw 12 passes through the second rectangular groove 11 and is located inside the central groove 15. The end of the lead screw 12 located inside the central groove 15 is fixedly connected to the second bevel gear 122. The four second bevel gears 122 inside the central groove 15 mesh in pairs. Therefore, when one lead screw 12 rotates, it can drive the second lead screw 12 to rotate together. Thus, it is not necessary to set a motor drive for each lead screw 12, saving cost and energy.

[0027] It is worth noting that, such as Figure 3 As shown, a second motor 121 is fixedly connected to the outer wall of the top plate 101. The output end of the drive shaft of the second motor 121 is fixedly connected to one end of the lead screw 12. The second motor 121 drives the lead screw 12 to rotate, thereby causing the threaded block 13 to move along the second rectangular groove 11 with the auxiliary clamping block 14, and to press and fix the shell cover.

[0028] It is worth noting that, such as Figure 2 As shown, a rubber block 501 is fixedly connected to the bottom end of the pressure rod 5. The rubber block 501 can provide cushioning when the pressure rod 5 descends to squeeze the shell cover, thus preventing scratches on the shell cover. The surfaces of the main clamping block 9 and the auxiliary clamping block 14 are provided with anti-slip pads, which increase friction and thus improve stability during the positioning and clamping process.

[0029] In practical use, the rear axle housing cover of the automobile is placed in the center of the top plate 101. The first motor 10 is started to drive the rotating rod 8 to rotate. Through the meshing of the first bevel gear 801, the first motor 10 drives the four rotating rods 8 to rotate synchronously, causing the main clamping block 9 to retract towards the center and clamp the workpiece. When welding the area covered by the main clamping block 9, the second motor 121 is started to drive the lead screw 12 to rotate. Through the meshing of the second bevel gear 122, the four lead screws 12 rotate synchronously, causing the threaded block 13 to move radially along the second rectangular groove 11. The auxiliary clamping block 14 then presses against the workpiece, replacing the main clamping block 9 for positioning. Simultaneously, the electric push rod 3 drives the pressure plate 4 to press down, and the rubber block 501 at the bottom of the pressure rod 5 applies vertical pressure to the workpiece, forming a composite clamping with the auxiliary clamping block 14 to ensure the stability of the workpiece during welding. The switching between the main and auxiliary clamping blocks 14 does not require releasing the workpiece or adjusting its position, achieving continuous and efficient welding.

[0030] In addition, all components designed in this utility model are general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0031] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A welding positioning device for a rear axle housing assembly of an automobile, comprising a base (1), a top plate (101), and a rotating rod (8), characterized in that: The top plate (101) has four rectangular slots (6) and two rectangular slots (11) arranged in a circular array at its top. A lead screw (12) is rotatably connected to the inner side of the rectangular slot (11). A threaded block (13) passes through the surface of the lead screw (12) and is threadedly connected to the threaded block (13). A secondary clamping block (14) is fixedly connected to the top of the threaded block (13). The base (1) has four rotating rods (8) arranged in a circular array on its inner side. The rotating rods (8) are rotatably connected to the support block (7) through a bearing seat. The support block (7) is fixedly connected to the inner bottom surface of the base (1). A bevel gear (801) fixedly connected to the end of the rotating rod (8) meshes with the bevel gear (801) of the adjacent rotating rod (8). A main clamping block (9) is fixedly connected to the center of the surface of the rotating rod (8).

2. The welding positioning device for an automobile rear axle housing assembly according to claim 1, characterized in that: One end of one of the rotating rods (8) passes through the side wall of the base (1) and is fixedly connected to the output end of the drive shaft of the first motor (10), which is fixedly connected to the outer side wall of the base (1).

3. The welding positioning device for an automobile rear axle housing cover assembly according to claim 1, characterized in that: A support frame (2) is fixedly connected to the outer wall of the base (1). An electric push rod (3) is fixedly connected to the top of the support frame (2). The telescopic end of the electric push rod (3) passes through the surface of the support frame (2) and is fixedly connected to the pressure plate (4). Four pressure rods (5) are fixedly connected in a circular array at the bottom edge of the pressure plate (4).

4. The welding positioning device for an automobile rear axle housing cover assembly according to claim 1, characterized in that: A central groove (15) is provided at the top center of the top plate (101). One end of the lead screw (12) passes through the second rectangular groove (11) and is located inside the central groove (15). The end of the lead screw (12) located inside the central groove (15) is fixedly connected to the second bevel gear (122). The four second bevel gears (122) inside the central groove (15) mesh in pairs.

5. The welding positioning device for an automobile rear axle housing cover assembly according to claim 1, characterized in that: A second motor (121) is fixedly connected to the outer wall of the top plate (101), and the output end of the transmission shaft of the second motor (121) is fixedly connected to one end of the lead screw (12).

6. The welding positioning device for an automobile rear axle housing cover assembly according to claim 3, characterized in that: A rubber block (501) is fixedly connected to the bottom end of the pressure rod (5), and anti-slip pads are provided on the surfaces of the main clamping block (9) and the auxiliary clamping block (14).

Images