A high-pressure flaring device for the weld lap joint of the front crossbeam of a front subframe
The adjustable clamping and fixing mechanism solves the problem that traditional flaring devices are difficult to adapt to different pipe radii, achieving stable clamping and flaring of pipes with different outer diameters, thus improving flaring quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN SIHAO HYDRAULIC MASCH CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-26
AI Technical Summary
The external support structure of the high-pressure flaring device in the weld lap joint of the front crossbeam of the traditional front subframe is fixed, which makes it difficult to adapt to the radius of different pipe materials. This results in uneven external support of the pipe material during flaring, causing local wrinkles.
It adopts an adjustable clamping and fixing mechanism, including a hydraulically driven connecting seat, connecting plate, limiting block and clamping block, which can flexibly adapt to pipes with different outer diameters, and achieve stable clamping and flaring of the pipe through the cooperation of hydraulic rod and spring.
It achieves stable clamping of pipes with different outer diameters and shortens the time for changing the pressure table, thus improving the quality and efficiency of flaring.
Smart Images
Figure CN224273024U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe forming technology, and in particular to a high-pressure flaring device for the weld lap joint of the front crossbeam pipe opening of the front subframe. Background Technology
[0002] In the automotive manufacturing industry, the front crossbeam of the front subframe is a key load-bearing component, and the forming quality of the weld lap joints at its pipe openings directly affects the safety and reliability of the entire vehicle. Internal high-pressure flaring technology, with its advantages of high precision and minimal machining, has become the mainstream process for processing this part.
[0003] However, the external support structure of the high-pressure flaring device in the weld lap joint of the front crossbeam of the traditional front subframe is a fixed structure, which is difficult to fully adapt to the radius of different pipe materials, resulting in uneven external support of the pipe material during flaring and causing local wrinkles.
[0004] For example, when producing front crossbeams of different radii, the traditional fixed clamping mechanism has a radial gap after clamping smaller radii of pipes due to the fixed size of the clamping slot. This causes the pipes to shift during the flaring process, resulting in a scrap rate of up to 30% for a single production run. Utility Model Content
[0005] This utility model discloses a high-pressure flaring device for the weld lap joint of the front crossbeam pipe opening of the front subframe. It aims to solve the technical problem that the external support structure of the traditional high-pressure flaring device for the weld lap joint of the front crossbeam pipe opening of the front subframe is a fixed structure, which is difficult to fully adapt to the radius of different pipe materials, resulting in uneven external support of the pipe material during flaring and causing local wrinkles.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A high-pressure flaring device for the weld lap joint of the front crossbeam of a front subframe includes a workbench. Multiple guide columns are connected to the top outer wall of the workbench, and multiple support plates are connected to the outer walls of the guide columns. A first hydraulic rod is connected to the top outer wall of one of the support plates, and the output end of the first hydraulic rod is connected to a fixed seat. The device further includes: a clamping mechanism comprising two equidistant connecting seats mounted on the top outer wall of the workbench; a second hydraulic rod is connected to one side outer wall of each connecting seat, and the output end of the second hydraulic rod is connected to one side outer wall of the connecting seat; multiple connecting plates are connected inside each connecting seat; a limit block is connected to one side outer wall of each connecting plate; multiple limit grooves are provided inside each connecting seat; the limit block is connected to the inner wall of the limit groove; two connecting blocks are connected to the other side outer wall of each connecting plate; and a clamping block is connected to the inner wall of each connecting block. Finally, a fixing mechanism is located on the inner wall of the fixed seat.
[0008] In this design, two connecting seats are installed on the top outer wall of the workbench. These seats are fixedly mounted and driven by a second hydraulic rod. Multiple equally spaced connecting plates are rotatably installed inside the connecting seats. Two connecting blocks on the outer wall of the connecting plates, away from the connecting seats, are rotatably connected to clamping blocks. The second hydraulic rod is then activated to move one of the connected seats. When the clamping blocks on the inner wall of the connecting blocks contact the outer wall of the pipe and rotate within the connecting blocks, they fit snugly against the outer wall of the pipe. A limiting block is fixedly connected to the other outer wall of the connecting plate, and this limiting block corresponds one-to-one with a limiting groove inside the connecting seat. This ensures that when the connecting plate is pushed by the connecting blocks, it rotates flexibly within the connecting seat while its movement is limited. When clamping pipes of different outer diameters, the multiple connecting plates and clamping blocks rotate flexibly within the connecting seats and connecting blocks, respectively, allowing the clamping blocks to fit tightly against the outer wall of the pipe, thus achieving the function of clamping pipes of different outer diameters.
[0009] In a preferred embodiment, the fixing mechanism includes a fixing plate installed on the inner wall of the fixing seat, a pressure table connected to the bottom outer wall of the fixing plate, two equidistant first springs connected inside the fixing plate, a locking block connected to one side of the outer wall of the first spring, a limiting post abutting one side of the outer wall of the locking block, two equidistant second springs connected to the outer wall of the fixing seat away from the first hydraulic rod, a protrusion connected to one side of the outer wall of the second spring, and a pressing plate connected to one side of the outer wall of the limiting post and the protrusion.
[0010] In this design, the fixing base and fixing plate provide an installation platform for the fixing mechanism. Simultaneously, the pressure plate installed on the bottom outer wall of the fixing plate applies downward pressure to the pipe, achieving a flaring effect. When using different pressure plates for pipes of different outer diameters, pressing the two pressure plates on one side of the fixing base causes the limiting post connected to the outer wall of the pressure plate to push the locking block, which is attached to the outer wall of the same side, into the fixing base. At this time, the locking block compresses the first spring. Simultaneously, when the locking block disengages from the inside of the fixing plate, the fixing plate is released, allowing it to be removed from the fixing base for replacement. While the pressure plate is pressed, the protrusion installed on the other end of one side of the pressure plate moves in the same direction as the limiting post and squeezes the second spring. When the locking block releases the fixing plate, releasing the pressure plate allows the protrusion to reset under the elastic force of the second spring, thus returning the pressure plate and limiting post to their initial positions.
[0011] As described above, a high-pressure flaring device for the weld lap joint of the front crossbeam of a front subframe includes a workbench. Multiple guide columns are connected to the top outer wall of the workbench, and multiple support plates are connected to the outer walls of the guide columns. A first hydraulic rod is connected to the top outer wall of one of the support plates, and the output end of the first hydraulic rod is connected to a fixed seat. The device also includes: a clamping mechanism comprising two equidistant connecting seats mounted on the top outer wall of the workbench; a second hydraulic rod is connected to one side outer wall of each connecting seat, and the output end of the second hydraulic rod is connected to one side outer wall of the connecting seat; multiple connecting plates are connected inside the connecting seat; a limiting block is connected to one side outer wall of each connecting plate; multiple limiting grooves are provided inside the connecting seat; the limiting block is connected to the inner wall of the limiting groove; two connecting blocks are connected to the other side outer wall of the connecting plate; and a clamping block is connected to the inner wall of the connecting block. Finally, a fixing mechanism is located on the inner wall of the fixed seat. The high-pressure flaring device for the weld lap joint of the front crossbeam pipe opening of the present invention has the technical effect of fixing pipes of different outer diameters and shortening the time for changing the pressure table. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of a high-pressure flaring device for the weld lap joint of the front crossbeam pipe of the front subframe proposed in this utility model.
[0013] Figure 2 This is a front view of the overall structure of a high-pressure flaring device for the weld lap joint of the front crossbeam pipe of the front subframe proposed in this utility model.
[0014] Figure 3 This is a schematic diagram of the clamping mechanism of a high-pressure flaring device for the weld lap joint of the front crossbeam pipe of the front subframe proposed in this utility model.
[0015] Figure 4 This is a schematic diagram of the fixing mechanism of the high-pressure flaring device in the weld lap joint of the front crossbeam pipe of the front subframe proposed in this utility model.
[0016] Figure 5 For the present utility model in Figure 3 Enlarged view of point A in the image.
[0017] Figure 6 For the present utility model in Figure 4 Enlarged view of point B in the image.
[0018] In the attached diagram: 1. Worktable; 2. Guide post; 3. Support plate; 4. First hydraulic rod; 5. Second hydraulic rod; 6. Connecting seat; 7. Screw; 8. Base platform; 9. Connecting plate; 10. Connecting block; 11. Limiting block; 12. Pressing table; 13. Fixing plate; 14. Fixing seat; 15. Clamping block; 16. First spring; 17. Locking block; 18. Limiting post; 19. Second spring; 20. Protrusion; 21. Pressing plate; 22. Limiting groove. Detailed Implementation
[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0020] The high-pressure flaring device disclosed in this utility model is mainly used in the case of the traditional high-pressure flaring device for the weld lap joint of the front crossbeam pipe opening of the front subframe. The external support structure of the high-pressure flaring device for the weld lap joint of the front crossbeam pipe opening of the front subframe is a fixed structure, which is difficult to fully adapt to the radius of different pipe materials. This results in uneven external support of the pipe material during flaring, causing local wrinkles.
[0021] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 A high-pressure flaring device for the weld lap joint of the front crossbeam pipe opening of a front subframe includes a workbench 1. Multiple guide pillars 2 are connected to the top outer wall of the workbench 1. Multiple support plates 3 are connected to the outer walls of the guide pillars 2. A first hydraulic rod 4 is connected to the top outer wall of one of the support plates 3. The output end of the first hydraulic rod 4 is connected to a fixed seat 14. The device also includes: a clamping mechanism: the clamping mechanism includes two equidistant connecting seats 6 installed on the top outer wall of the workbench 1. A second hydraulic rod 5 is connected to one side outer wall of the connecting seat 6. The output end of the second hydraulic rod 5 is connected to one side outer wall of the connecting seat 6. Multiple connecting plates 9 are connected inside the connecting seat 6. A limiting block 11 is connected to one side outer wall of the connecting plate 9. Multiple limiting grooves 22 are provided inside the connecting seat 6. The limiting block 11 is connected to the inner wall of the limiting groove 22. Two connecting blocks 10 are connected to the other side outer wall of the connecting plate 9. A clamping block 15 is connected to the inner wall of the connecting block 10. A fixing mechanism: the fixing mechanism is located on the inner wall of the fixed seat 14.
[0022] Two connecting seats 6 are installed on the top outer wall of the workbench 1. The connecting seats 6 are fixedly installed on the top outer wall of the workbench 1 and are driven by a second hydraulic rod 5. At this time, multiple equally distributed connecting plates 9 are rotated and installed inside the connecting seats 6. At this time, the inner walls of two connecting blocks 10 installed on the outer wall of the connecting plate 9 away from the connecting seats 6 are rotatably connected to clamping blocks 15. Then, by activating the second hydraulic rod 5, one of the connecting seats 6 connected to it is pushed to move. When the clamping block 15 on the inner wall of the connecting block 10 contacts the outer wall of the pipe and rotates on the inner wall of the connecting block 10, it fits against the outer wall of the pipe. At this time, by fixing a limiting block 11 to the outer wall of the other side of the connecting plate 9, and the limiting block 11 corresponding one-to-one with the limiting groove 22 provided inside the connecting seat 6, the movement of the connecting plate 9 is limited when the connecting plate 9 is pushed by the connecting block 10 and rotates flexibly inside the connecting seat 6. At this time, when clamping pipes of different outer diameters, multiple connecting plates 9 rotate flexibly inside the connecting seat 6 and clamping blocks 15 rotate flexibly inside the connecting block 10, so that the clamping blocks 15 are tightly attached to the outer wall of the pipe, thereby achieving the function of clamping pipes of different outer diameters.
[0023] The connecting block 10 and the clamping block 15 are rotatably connected together, and the limiting block 11 and the limiting groove 22 are slidably connected together. The clamping block 15 rotates on the inner wall of the connecting block 10, and then slides on the inner wall of the limiting block 11 through the limiting groove 22, thereby achieving the effect of tightly fitting with pipes of different outer diameters.
[0024] Specifically, the clamping block 15 has multiple clamping teeth evenly distributed on the outer wall of the side away from the connecting seat 6. The multiple clamping teeth evenly distributed on the outer wall of the side of the clamping block 15 contact the outer wall of the pipe, thereby improving the stability of the pipe.
[0025] Reference Figure 1 , Figure 4 and Figure 6 In a preferred embodiment, the fixing mechanism includes a fixing plate 13 installed on the inner wall of the fixing seat 14. The bottom outer wall of the fixing plate 13 is connected to a pressure table 12. The interior of the fixing plate 13 is connected to two equally spaced first springs 16. One side outer wall of the first spring 16 is connected to a locking block 17. One side outer wall of the locking block 17 is attached to a limiting post 18. The outer wall of the fixing seat 14 away from the first hydraulic rod 4 is connected to two equally spaced second springs 19. One side outer wall of the second spring 19 is connected to a protrusion 20. The outer walls of the limiting post 18 and the protrusion 20 are connected to the same pressing plate 21.
[0026] The fixing base 14 and fixing plate 13 provide an installation platform for the fixing mechanism. Meanwhile, the pressure plate 12 installed on the bottom outer wall of the fixing plate 13 applies downward pressure to the pipe, thereby achieving the flaring effect. When using different pressure plates 12 for pipes of different outer diameters, pressing the two pressing plates 21 on one side of the outer wall of the fixing base 14 causes the limiting post 18 connected to one side of the pressing plate 21 to push the locking block 17, which is in contact with the outer wall of that side, into the fixing base 14. At this time, the locking block 17 compresses the first spring 16. Simultaneously, when the locking block 17 disengages from the fixing base... When the fixed plate 13 is inside the fixed plate 13, the fixing of the fixed plate 13 is released, and the fixed plate 13 is removed from the inside of the fixed seat 14 for replacement. At the same time as the pressing plate 21 is pressed, the protrusion 20 installed on the other end of the outer wall of the pressing plate 21 moves in the same direction as the limiting post 18 and squeezes the second spring 19. When the fixing of the fixed plate 13 by the locking block 17 is released, the pressing plate 21 is released, and the protrusion 20 is pushed back to its original position under the elastic force of the second spring 19. Thus, the pressing plate 21 and the limiting post 18 return to their initial positions under the push of the protrusion 20.
[0027] The end of the locking block 17 away from the fixing plate 13 is connected to the inner wall of one side of the fixing base 14. The locking block 17 is inserted into the inner wall of one side of the fixing base 14 to fix the fixing plate 13.
[0028] Specifically, the end of the fixed seat 14 near the second hydraulic rod 5 is open, and the inner wall of the fixed seat 14 is provided with a dovetail groove. The outer wall of the fixed plate 13 is attached to the inner wall of the dovetail groove. The open end of the fixed seat 14 is used to insert the fixed plate 13 into the dovetail groove of the inner wall of the fixed seat 14, and the movement of the fixed plate 13 is limited by the dovetail groove.
[0029] Reference Figure 1 and Figure 2 In a preferred embodiment, a support seat is connected to the outer wall of the worktable 1 on the side away from the connecting seat 6, and a screw 7 is connected to the inner thread of the support seat. A base 8 is connected to the top outer wall of the screw 7.
[0030] The distance between the pipe and the connecting seat 6 can be adjusted by rotating the screw 7 to drive the base 8 to rise and fall.
[0031] Working Principle: In use, the pipe is first placed on the base platform 8. By rotating the screw 7 inside the support seat, the base platform 8 is raised or lowered, thus adjusting the pipe height to match the connecting seat 6, ensuring the pipe is in the appropriate processing position. Then, by activating the two second hydraulic rods 5, the connecting seats 6 connected to the second hydraulic rods 5 move towards each other. When the clamping block 15 contacts the outer wall of the pipe, due to the rotatable connection between the connecting block 10 and the clamping block 15, the clamping block 15 rotates flexibly within the inner wall of the connecting block 10. Simultaneously, the limiting block 11 connected to one side of the outer wall of the connecting plate 9 slides within the limiting groove 22 inside the connecting seat 6, allowing multiple connecting plates 9 to rotate flexibly within the connecting seat 6. Through the high degree of freedom of the connecting plates 9 and the clamping block 15 working together, the clamping block 15 can tightly fit the outer wall of pipes with different outer diameters. Furthermore, multiple clamping teeth are installed on the outer wall of the clamping block 15 on the side that contacts the outer wall of the pipe, increasing friction. The friction further improves the clamping stability of the pipe. Secondly, by activating the first hydraulic rod 4, the output end of the first hydraulic rod 4 drives the fixed seat 14 to move downward along the guide column 2. At the same time, the pressure plate 12 on the inner wall of the fixed seat 14 descends and contacts one end of the pipe, thereby achieving the effect of flaring the pipe. After flaring, the first hydraulic rod 4 drives the fixed seat 14 to rise, causing the pressure plate 12 to disengage from the pipe. Then, the second hydraulic rod 5 drives the connecting seat 6 to retract, and the clamping block 15 releases the pipe, completing the release of the pipe. If different specifications of pipe need to be processed, by pressing the two pressing plates 21 on one side of the outer wall of the fixed seat 14, the pressing plates 21 drive the limiting column 18 to push the locking block 17 into the fixed seat 14 and compress the first spring 16. When the locking block 17 disengages from the fixed plate 13, the fixed plate 13 and the pressure plate 12 can be removed from the dovetail groove inside the fixed seat 14 and replaced with a suitable pressure plate 12 and fixed plate 13.
[0032] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.
Claims
1. A high-pressure flaring device for the weld lap joint of the front crossbeam of a front subframe, comprising a workbench (1), wherein a plurality of guide columns (2) are connected to the top outer wall of the workbench (1), and a plurality of support plates (3) are connected to the outer walls of the plurality of guide columns (2), wherein a first hydraulic rod (4) is connected to the top outer wall of one of the support plates (3), and a fixed seat (14) is connected to the output end of the first hydraulic rod (4), characterized in that, Also includes: Clamping mechanism: The clamping mechanism includes two equally spaced connecting seats (6) installed on the top outer wall of the workbench (1). A second hydraulic rod (5) is connected to one side outer wall of the connecting seat (6). The output end of the second hydraulic rod (5) is connected to one side outer wall of the connecting seat (6). Multiple connecting plates (9) are connected inside the connecting seat (6). A limit block (11) is connected to one side outer wall of the connecting plate (9). Multiple limit grooves (22) are provided inside the connecting seat (6). The limit block (11) is connected to the inner wall of the limit groove (22). Two connecting blocks (10) are connected to the other side outer wall of the connecting plate (9). A clamping block (15) is connected to the inner wall of the connecting block (10). Fixing mechanism: The fixing mechanism is located on the inner wall of the fixing seat (14).
2. The high-pressure flaring device for the weld lap joint of the front crossbeam pipe opening of the front subframe according to claim 1, characterized in that, The connecting block (10) and the clamping block (15) are rotatably connected together, and the limiting block (11) and the limiting groove (22) are slidably connected together.
3. The high-pressure flaring device for the weld lap joint of the front crossbeam pipe opening of the front subframe according to claim 2, characterized in that, The clamping block (15) has multiple clamping teeth evenly distributed on the outer wall of the side away from the connecting seat (6).
4. The high-pressure flaring device for the weld lap joint of the front crossbeam pipe opening of the front subframe according to claim 1, characterized in that, The fixing mechanism includes a fixing plate (13) installed on the inner wall of the fixing seat (14). The bottom outer wall of the fixing plate (13) is connected to a pressure table (12). The interior of the fixing plate (13) is connected to two first springs (16) that are evenly distributed. A locking block (17) is connected to one side of the outer wall of the first spring (16). A limiting post (18) is attached to one side of the outer wall of the locking block (17). Two second springs (19) that are evenly distributed are connected to the outer wall of the fixing seat (14) away from the first hydraulic rod (4). A protrusion (20) is connected to one side of the outer wall of the second spring (19). The limiting post (18) and the protrusion (20) are connected to the same pressing plate (21).
5. The high-pressure flaring device for the weld lap joint of the front crossbeam pipe opening of the front subframe according to claim 4, characterized in that, The end of the card block (17) away from the fixing plate (13) is connected to the inner wall of one side of the fixing seat (14).
6. The high-pressure flaring device for the weld lap joint of the front crossbeam pipe opening of the front subframe according to claim 5, characterized in that, The fixed seat (14) has an opening at one end near the second hydraulic rod (5), and the inner wall of the fixed seat (14) is provided with a dovetail groove. The outer wall of the fixed plate (13) is attached to the inner wall of the dovetail groove.
7. The high-pressure flaring device for the weld lap joint of the front crossbeam pipe opening of the front subframe according to claim 1, characterized in that, The workbench (1) has a support seat connected to the outer wall of the side away from the connecting seat (6), and a screw (7) is connected to the inner thread of the support seat. The top outer wall of the screw (7) is connected to a base (8).