A pre-assembly device for welding automotive air conditioning pipes
By designing a pre-assembly device for welding automotive air conditioning pipes, and utilizing distance adjustment, position adjustment, height adjustment, and clamping and fixing components to achieve pipe docking and assembly, the problem of dimensional accuracy and consistency in air conditioning pipe welding was solved, and the welding quality was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN JIACHENG RITA TECH DEV CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-26
Smart Images

Figure CN224273884U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automotive air conditioning pipes, and in particular to an assembly device for welding automotive air conditioning pipes. Background Technology
[0002] With societal development, automotive air conditioning has become a standard feature in automobiles. Automotive air conditioning ducts are pipes that deliver cooled air into the vehicle. Connecting two sections of automotive air conditioning ducts typically requires specialized connectors, which usually consist of multiple automotive air conditioning pipes. These pipes are often irregularly shaped, increasing the difficulty of welding and processing them. The prior art announcement CN216097278U discloses a coaxial tube welding and positioning fixture for automotive air conditioning pipes, comprising a base, a fixing frame fixedly connected to the upper surface of the base, a motor fixedly connected to the side wall of the fixing frame, a support plate fixedly connected to the output end of the motor via a rotating shaft, a clamping mechanism fixedly connected to the side wall of the support plate, a fixing plate fixedly connected to the upper surface of the base and located behind the support plate, a moving mechanism provided on the front wall of the fixing plate, an electric telescopic rod fixedly connected to the moving mechanism via a connecting plate, a support block two fixedly connected to the movable end of the electric telescopic rod, a baffle fixedly connected to the lower surface of the support block two, a threaded post three threadedly connected to the side wall of the baffle, a fixing ring two provided on the outer side of the threaded post three, and a moving plate fixedly connected to the side wall of the fixing ring two. However, due to the large number of automotive parts and the intricate arrangement of oil lines, air lines, and electrical circuits, as well as the complex routing of the air conditioning system's connecting pipes, which are mostly curved, it is difficult to guarantee the dimensional accuracy of the finished products and the consistency of mass-produced products under normal welding conditions due to the bending, twisting, and changing routes of the automotive air conditioning pipes. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a pre-assembly device for automotive air conditioning pipes that clamps the pipes, allowing two pipe sections to be joined and assembled, facilitating subsequent welding of the pipes, and ensuring the dimensional accuracy of the welded product and the consistency of batch products.
[0004] This utility model discloses a pre-assembly device for welding automotive air conditioning pipes, comprising a left base, a right base, a distance adjustment component, a position adjustment component, a height adjustment component, an angle adjustment component, and a clamping and fixing component. The left and right bases are connected by the distance adjustment component. The position adjustment component is installed at the top of the left and right bases, and the height adjustment component is installed at the top of the position adjustment component. The clamping and fixing component is installed at the top of the height adjustment component via the angle adjustment component. The distance adjustment component adjusts the distance between the left and right bases. According to the shape and angle of the pipe, the height adjustment component and the angle adjustment component adjust the fixed position and angle. The clamping and fixing component clamps the pipe, allowing the two sections of the pipe to be joined and assembled, facilitating subsequent welding of the pipe, ensuring welding accuracy, and ensuring the dimensional accuracy of the welded product and the consistency of batch products.
[0005] Preferably, the distance adjustment component includes a threaded rod, a handwheel, and two sets of support slide rods. The threaded rod is rotatably mounted in the middle of the right base, and a handwheel is installed at the right end of the threaded rod. A threaded groove is opened on the right side of the left base, and the threaded rod is screwed into the threaded groove. Multiple guide slide grooves are symmetrically opened on the left base about the threaded groove. Support slide rods are symmetrically installed on the left side wall of the right base, and the support slide rods are slidably installed in the guide slide grooves. By driving the threaded rod to rotate through the handwheel, the left base is pushed so that the guide slide grooves slide on the support slide rods, thereby adjusting the distance between the left and right bases. This is suitable for air conditioning pipes of different lengths.
[0006] Preferably, the position adjustment component includes two sets of adjustment seats, two sets of support rods, two sets of sliding blocks, two sets of movable seats, and multiple fastening screws. The two sets of adjustment seats are respectively installed on the top of the left base and the right base. The adjustment seats have adjustment grooves inside, the support rods are installed in the adjustment grooves, the sliding blocks are slidably installed on the adjustment grooves and the outer walls of the support rods, and the movable seats are installed on the top of the sliding blocks. The movable seats are screwed with fastening screws. Pushing the movable seats can drive the sliding blocks to slide on the adjustment grooves and the outer walls of the support rods. Tightening the fastening screws can fix the movable seats and ensure the stability of the pipeline after assembly.
[0007] Preferably, the height adjustment component includes two sets of vertical cylinders, two sets of telescopic rods, two sets of sliding sleeves, and two sets of second fastening screws. The vertical cylinders are installed on the top of the movable base, and the telescopic rods are slidably installed inside the vertical cylinders. A sliding groove is provided on the side wall of the vertical cylinder, and the sliding sleeves are slidably installed on the outer wall of the vertical cylinder. The sliding sleeves pass through the sliding grooves and connect to the bottom side wall of the telescopic rods. The second fastening screws are screwed onto the side wall of the sliding sleeves. Pulling the telescopic rods to slide inside the vertical cylinders adjusts the support height. When the telescopic rods move, they drive the sliding sleeves to slide on the outer wall of the vertical cylinders. Tightening the second fastening screws can fix the telescopic rods.
[0008] Preferably, the clamping and fixing component includes two sets of support seats, two sets of rotating rods, two sets of clamping sliders, multiple knobs, and two sets of clamping blocks. The support seats are located above the telescopic rods, and a clamping groove is opened on the top of the support seats. The rotating rods are rotatably installed in the clamping grooves. Threaded grooves are symmetrically opened on the outer wall of the rotating rods. A knob is installed at the front end of the rotating rod. Two clamping sliders are slidably installed in the clamping grooves, and the clamping sliders are screwed onto the outer wall of the rotating rods. A clamping block is installed at the top of the clamping slider. The pipeline is placed between the two clamping blocks. Rotating the knobs drives the rotating rods to rotate, causing the clamping sliders to move within the clamping grooves. The distance between the two clamping blocks is adjusted to clamp and fix the pipeline, facilitating subsequent welding and ensuring welding accuracy.
[0009] Preferably, the angle adjustment component includes two sets of bearing seats, two sets of rotating seats, and multiple fixing plates. The bearing seats are installed at the top of the telescopic rod, the rotating seats are rotatably installed on the top of the bearing seats, the bottom of the support seat is connected to the top of the rotating seats, and the fixing plates are installed on the rotating seats. The fixing plates are provided with locking screws. According to the inclination angle of the pipeline, moving the support seat can drive the rotating seats to rotate on the bearing seats, and the rotating seats can be locked and fixed by the locking screws.
[0010] Preferably, it also includes two support plates, two vertical rods, two support blocks, and two third fastening screws. The two support plates are symmetrically installed on the top of the outer wall of the left and right vertical cylinders. The vertical rods are slidably installed on the support plates, and the support blocks are installed on the top of the vertical rods. The third fastening screws are screwed onto the support plates. Loosening the third fastening screws allows the vertical rods to slide on the support plates, adjusting the height of the vertical rods. The support blocks can support the left and right sides of the welding area, ensuring the stability of subsequent welding.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the distance between the left and right bases is adjusted by the distance adjustment component; the height adjustment component and the angle adjustment component adjust the fixed position and angle according to the shape and angle of the pipeline; the pipeline is clamped by the clamping and fixing component, so that the two sections of the pipeline can be connected and assembled, which facilitates the subsequent welding of the pipeline, ensures the welding accuracy, and ensures the dimensional accuracy of the welded product and the consistency of batch products. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the isometric structure of this utility model;
[0014] Figure 3 This is a front cross-sectional structural diagram of the present invention;
[0015] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of this utility model;
[0016] Figure 5This is a schematic diagram of the left-side cross-sectional structure of this utility model;
[0017] The following are labels in the attached diagram: 1. Left base; 2. Right base; 3. Threaded rod; 4. Handwheel; 5. Support slide rod; 6. Adjusting seat; 7. Support rod; 8. Sliding block; 9. Moving seat; 10. Fastening screw; 11. Vertical cylinder; 12. Telescopic rod; 13. Sliding sleeve; 14. Second fastening screw; 15. Bearing seat; 16. Rotating seat; 17. Fixed plate; 18. Support seat; 19. Rotating rod; 20. Clamping slider; 21. Knob; 22. Clamping block; 23. Support plate; 24. Vertical rod; 25. Support block; 26. Third fastening screw. Detailed Implementation
[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0019] like Figures 1 to 5As shown, the threaded rod 3 is rotatably installed in the middle of the right base 2. A handwheel 4 is installed at the right end of the threaded rod 3. A threaded groove is opened on the right side of the left base 1, and the threaded rod 3 is screwed into the threaded groove. Multiple guide grooves are symmetrically opened on the left base 1 about the threaded groove. Supporting slide rods 5 are symmetrically installed on the left side wall of the right base 2. The supporting slide rods 5 are slidably installed in the guide grooves. Two sets of adjusting seats 6 are respectively installed at the top of the left base 1 and the right base 2. Adjusting grooves are opened inside the adjusting seats 6. Support rods 7 are installed in the adjusting grooves. Sliding blocks 8 are slidably installed on the adjusting grooves and the outer wall of the support rods 7. A movable seat 9 is installed on the top of the sliding block 8. Fastening screws 10 are screwed onto the movable seat 9. The vertical cylinder 11 is installed at the top of the movable seat 9. The telescopic rod 12 is slidably installed inside the vertical cylinder 11. A sliding groove is opened on the side wall of the vertical cylinder 11. A sliding sleeve 13 is slidably installed on the outer wall of the vertical cylinder 11. The sliding sleeve 13 passes through the sliding groove and connects to the bottom side wall of the telescopic rod 12. A second fastening screw 14 is screwed onto the side wall of sleeve 13. Support seat 18 is located above telescopic rod 12. A clamping groove is opened on the top of support seat 18. Rotating rod 19 is rotatably installed in the clamping groove. Threaded grooves are symmetrically opened on the outer wall of rotating rod 19. A knob 21 is installed at the front end of rotating rod 19. Two clamping sliders 20 are slidably installed in the clamping groove and screwed onto the outer wall of rotating rod 19. A clamping block 22 is installed at the top of clamping slider 20. Bearing seat 15 is installed at the top of telescopic rod 12. Rotating seat 16 is rotatably installed on the top of bearing seat 15. The bottom of support seat 18 is connected to the top of rotating seat 16. A fixing plate 17 is installed on rotating seat 16. Locking screws are provided on fixing plate 17. Two support plates 23 are symmetrically installed on the top of the outer walls of the left and right vertical cylinders 11. Vertical rods 24 are slidably installed on support plates 23. Support blocks 25 are installed on the top of vertical rods 24. A third fastening screw 26 is screwed onto support plates 23.
[0020] Depending on the shape and angle of the pipeline, the handwheel 4 drives the threaded rod 3 to rotate, pushing the left base 1 to slide the guide groove on the support rod 5. Adjusting the distance between the left base 1 and the right base 2 is suitable for air conditioning pipes of different lengths. Pushing the movable seat 9 causes the sliding block 8 to slide on the adjusting groove and the outer wall of the support rod 7. Tightening the fastening screw 10 secures the movable seat 9, ensuring the stability of the pipeline after assembly. Pulling the telescopic rod 12 allows it to slide inside the vertical cylinder 11, adjusting the support height. When the telescopic rod 12 moves, it causes the sliding sleeve 13 to slide on the outer wall of the vertical cylinder 11. Tightening the second fastening screw 14 secures the telescopic rod 12. The pipe is placed between the two clamping blocks 22. Turning the knob 21 drives the rotating rod 19 to rotate, causing the clamping slider 20 to move within the clamping groove. Adjusting the distance between the two clamping blocks 22 clamps and fixes the pipe, facilitating subsequent welding and ensuring welding accuracy. Depending on the pipe's tilt angle, moving the support seat 18 causes the rotating seat 16 to rotate on the bearing seat 15. The rotating seat 16 can be locked and fixed by the locking screw. Loosening the third fastening screw 26 allows the vertical rod 24 to slide on the support plate 23. Adjusting the height of the vertical rod 24 allows the support block 25 to support the left and right sides of the welding area, ensuring the stability of subsequent welding.
[0021] like Figures 1 to 5 As shown, this utility model discloses a pre-assembly device for welding automotive air conditioning pipes. During operation, based on the shape and angle of the pipe, the handwheel 4 drives the threaded rod 3 to rotate, pushing the left base 1 so that the guide groove slides on the support rod 5. Adjusting the distance between the left base 1 and the right base 2, the moving seat 9 is pushed, causing the sliding block 8 to slide on the adjusting groove and the outer wall of the support rod 7. Tightening the fastening screw 10 fixes the moving seat 9. Pulling the telescopic rod 12 slides within the vertical cylinder 11, adjusting the support height. When the telescopic rod 12 moves, it causes the sliding sleeve 13 to slide on the outer wall of the vertical cylinder 11. Tightening the second fastening screw... 14 can fix the telescopic rod 12. According to the inclination angle of the pipeline, turning the support seat 18 can drive the rotating seat 16 to rotate on the bearing seat 15. The rotating seat 16 can be locked and fixed by the locking screw. The pipeline is placed between the two clamping blocks 22. Turning the knob 21 drives the rotating rod 19 to rotate, so that the clamping slider 20 moves in the clamping groove. Adjust the distance between the two clamping blocks 22 to clamp and fix the pipeline. Loosening the third fastening screw 26 can allow the vertical rod 24 to slide on the support plate 23. Adjust the height of the vertical rod 24. The support block 25 can support the left and right sides of the welding part.
[0022] 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 pre-assembly device for automotive air conditioning pipe welding, characterized in that, It includes a left base (1), a right base (2), a distance adjustment component, a position adjustment component, a height adjustment component, an angle adjustment component, and a clamping and fixing component. The left base (1) and the right base (2) are connected by the distance adjustment component. The left base (1) and the right base (2) are equipped with position adjustment components at their top ends. The position adjustment component is equipped with a height adjustment component at its top end. The height adjustment component is equipped with a clamping and fixing component at its top end via the angle adjustment component.
2. The automotive air conditioning pipe welding pre-assembly device as described in claim 1, characterized in that, The distance adjustment component includes a threaded rod (3), a handwheel (4), and two sets of support slide rods (5). The threaded rod (3) is rotatably installed in the middle of the right base (2). The handwheel (4) is installed at the right end of the threaded rod (3). A threaded groove is opened on the right side of the left base (1). The threaded rod (3) is screwed into the threaded groove. Multiple guide slides are symmetrically opened on the left base (1) about the threaded groove. Support slide rods (5) are symmetrically installed on the left side wall of the right base (2). The support slide rods (5) are slidably installed in the guide slides.
3. The automotive air conditioning pipe welding pre-assembly device as described in claim 1, characterized in that, The position adjustment component includes two sets of adjustment seats (6), two sets of support rods (7), two sets of sliding blocks (8), two sets of movable seats (9) and multiple fastening screws (10). The two sets of adjustment seats (6) are respectively installed on the top of the left base (1) and the right base (2). The adjustment seat (6) has an adjustment groove inside. The support rod (7) is installed in the adjustment groove. The sliding block (8) is slidably installed on the outer wall of the adjustment groove and the support rod (7). The movable seat (9) is installed on the top of the sliding block (8). The fastening screws (10) are screwed on the movable seat (9).
4. The automotive air conditioning pipe welding pre-assembly device as described in claim 3, characterized in that, The height adjustment component includes two sets of vertical cylinders (11), two sets of telescopic rods (12), two sets of sliding sleeves (13), and two sets of second fastening screws (14). The vertical cylinders (11) are installed on the top of the movable seat (9). The telescopic rods (12) are slidably installed inside the vertical cylinders (11). A sliding groove is provided on the side wall of the vertical cylinders (11). The sliding sleeves (13) are slidably installed on the outer wall of the vertical cylinders (11). The sliding sleeves (13) pass through the sliding groove and are connected to the bottom side wall of the telescopic rods (12). The second fastening screws (14) are screwed onto the side wall of the sliding sleeves (13).
5. The automotive air conditioning pipe welding pre-assembly device as described in claim 4, characterized in that, The clamping and fixing components include two sets of support seats (18), two sets of rotating rods (19), two sets of clamping sliders (20), multiple knobs (21) and two sets of clamping blocks (22). The support seats (18) are located above the telescopic rod (12). The top of the support seats (18) is provided with a clamping groove. The rotating rods (19) are rotatably installed in the clamping groove. The outer wall of the rotating rods (19) is symmetrically provided with threaded grooves. The front end of the rotating rods (19) is equipped with a knob (21). The two clamping sliders (20) are slidably installed in the clamping groove, and the clamping sliders (20) are screwed onto the outer wall of the rotating rods (19). The top of the clamping sliders (20) is equipped with clamping blocks (22).
6. The automotive air conditioning pipe pre-welding assembly device as described in claim 5, characterized in that, The angle adjustment component includes two sets of bearing seats (15), two sets of rotating seats (16) and multiple fixing plates (17). The bearing seats (15) are installed on the top of the telescopic rod (12), the rotating seats (16) are rotatably installed on the top of the bearing seats (15), the bottom of the support seat (18) is connected to the top of the rotating seats (16), and the fixing plates (17) are installed on the rotating seats (16). The fixing plates (17) are provided with locking screws.
7. The automotive air conditioning pipe welding pre-assembly device as described in claim 4, characterized in that, It also includes two support plates (23), two vertical rods (24), two support blocks (25) and two third fastening screws (26). The two support plates (23) are symmetrically installed on the top of the outer wall of the left and right vertical cylinders (11). The vertical rods (24) are slidably installed on the support plates (23). The support blocks (25) are installed on the top of the vertical rods (24). The third fastening screws (26) are screwed onto the support plates (23).