Automobile door welding fixture

Abstract

The utility model discloses a kind of automobile door welding jigs, belong to door machining production technical field, it includes fixed base, fixed hole and fixed waist hole are set in the fixed base two sides, sliding slot is set in the inside of fixed base, motor is fixedly installed on the fixed base, motor output shaft is connected with threaded rod, threaded rod both ends are slidably installed with movable plate and are penetrated. The automobile door welding jig, by starting electric push rod to push block movement, to push block in arc groove sliding and simultaneously push and squeeze groove wall, so that fixed sleeve can drive rotating lever rotation, so that the rubber block of lower pressing screw end portion is contacted with door wall body, and cooperate with screwing lower pressing screw and adjust, exert pressure on door, car door is fixed on workbench, and it can be loosened by screwing fastening bolt and adjust the position of movable sleeve and lower pressing screw on rotating lever, and then adapt to door size and form, improve applicability.

Description

Technical Field

[0001] This utility model belongs to the field of automotive door processing and manufacturing technology, specifically an automotive door welding fixture. Background Technology

[0002] Car door processing is a crucial step in automobile manufacturing, involving multiple processes such as stamping, welding, painting, and assembly. First, steel sheets are formed into inner and outer door panels through stamping. Then, welding technology is used to splice the components to ensure structural strength. The painting stage includes electrophoresis, intermediate coating, and topcoat to improve corrosion resistance and aesthetics. Finally, assembly is carried out to integrate components such as window regulators and door locks, and a sealing test is completed. However, traditionally, car door welding often uses fixed-structure jigs with preset fixed positions, which are difficult to flexibly adapt to the complex shapes of different car doors and the different welding point requirements. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides an automotive door welding fixture, which solves the problem that traditional automotive door welding fixtures often use fixed structures with preset fixed positions, making it difficult to flexibly adapt to the complex shapes of different doors and the different welding point requirements.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automotive door welding fixture, comprising a fixed base, with fixed holes and fixed waist holes on both sides of the fixed base, a sliding groove inside the fixed base, a motor fixedly mounted on the fixed base, a threaded rod connected to the output shaft of the motor, movable plates slidably mounted through both ends of the threaded rod, a mating sleeve fixedly mounted inside the movable plate, sliders connected through the side walls of the fixed base on both sides of the movable plate, and a connecting seat connected above the sliders;

[0005] The connecting seat is connected to two columns on the upper sides. A worktable is connected to the column. A rotating rod is rotatably connected to the column via a bearing. A fixed sleeve is connected to the rotating rod. A movable sleeve is slidably connected through the rotating rod. A fastening bolt is threaded to one side of the movable sleeve. A pressing screw is threaded to the movable sleeve. A rubber block is connected to the end of the fastening bolt and the pressing screw.

[0006] As a further embodiment of this utility model: an electric push rod is fixedly installed on one side of the workbench, and a push block is connected to the movable end of the electric push rod. The movable plate slides in the groove and contacts the groove wall.

[0007] As a further embodiment of this utility model: the fixed sleeve is provided with an arc-shaped groove, and the arc-shaped groove is spirally arranged on the fixed sleeve, and the push block slides in the arc-shaped groove.

[0008] As a further embodiment of this utility model: the threaded rod is rotatably connected to the fixed seat through a bearing, and the two ends of the threaded rod are provided with threads in opposite directions, and the threaded rod is threadedly engaged with the mating sleeve.

[0009] As a further embodiment of this utility model: one side of the middle section of the rotating rod is designed as a plane, and the movable sleeve slides in the middle section of the rotating rod and is in close contact with the rotating rod; the rubber block at the end of the fastening bolt slides in the movable sleeve and is in close contact with the plane side of the rotating rod.

[0010] As a further embodiment of this utility model: guide rails are connected to both sides of the fixed base, and the slider slides in cooperation with the guide rails.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This automotive door welding fixture comprises a push block, an arc-shaped groove, a fixed sleeve, a movable sleeve, fastening bolts, a pressing screw, and a rubber block. By activating an electric push rod, the push block moves, sliding within the arc-shaped groove and simultaneously pushing against the groove wall. This causes the fixed sleeve to rotate the rotating rod, bringing the rubber block at the end of the pressing screw into contact with the door wall. Adjustment is made by turning the pressing screw to apply pressure to the door, fixing it to the worktable. Furthermore, the position of the movable sleeve and the pressing screw on the rotating rod can be adjusted by turning the fastening bolts, thus adapting to different door sizes and shapes and improving applicability.

[0013] 2. This automotive door welding fixture, by setting up a motor, threaded rod, movable plate, mating sleeve, slider, guide rail, and connecting seat, rotates the threaded rod by starting the motor. The threaded engagement between the mating sleeve and the threaded rod causes the movable plate to move along the threaded rod in the slide groove. In turn, the movable plate drives the slider to slide on the guide rail, thereby allowing the two connecting seats to move towards each other on the fixed seat. This adjusts the distance between the two connecting seats on the fixed seat, thus making the worktable adaptable to different sizes of car doors and further improving its applicability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the fixing base of this utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the connector of this utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the movable sleeve of this utility model;

[0018] In the diagram: 1. Fixed base; 2. Fixed hole; 3. Fixed waist hole; 4. Slide groove; 5. Motor; 6. Threaded rod; 7. Movable plate; 8. Mating sleeve; 9. Slider; 10. Connecting seat; 11. Column; 12. Worktable; 13. Rotating rod; 14. Fixed sleeve; 15. Movable sleeve; 16. Fastening bolt; 17. Downward screw; 18. Rubber block; 19. Electric push rod; 20. Push block; 21. Arc groove; 22. Guide rail. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] like Figure 1-4 As shown, this utility model provides a technical solution: an automotive door welding fixture, including a fixed base 1, with fixed holes 2 and fixed waist holes 3 on both sides of the fixed base 1, a sliding groove 4 inside the fixed base 1, and guide rails 22 connected to both sides of the fixed base 1. A slider 9 slides in cooperation with the guide rails 22. By sliding the slider 9 on the guide rails 22, the guide rails 22 guide the movement of the connecting seat 10, thus preventing the movement from becoming skewed.

[0021] A motor 5 is fixedly installed on the fixed base 1. The output shaft of the motor 5 is connected to a threaded rod 6. Movable plates 7 are slidably installed through both ends of the threaded rod 6. A mating sleeve 8 is fixedly installed inside the movable plate 7. The threaded rod 6 is rotatably connected to the fixed base 1 through a bearing. The two ends of the threaded rod 6 are provided with threads in opposite directions, and the threaded rod 6 is threadedly engaged with the mating sleeve 8. Through the threads in opposite directions at both ends of the threaded rod 6, the two movable plates 7 can drive the connecting base 10 to move in opposite directions, thereby adjusting the spacing to meet the fixing requirements of different car doors.

[0022] The movable plate 7 is connected to sliders 9 through the side walls of the fixed base 1 on both sides. A connecting base 10 is connected above the sliders 9. Columns 11 are connected above the connecting base 10 on both sides. A worktable 12 is connected to the column 11. An electric push rod 19 is fixedly installed on one side of the worktable 12. A push block 20 is connected to the movable end of the electric push rod 19. The movable plate 7 slides in the slide groove 4 and contacts the groove wall. Through the contact between the groove wall of the slide groove 4 and the movable plate 7, the slide groove 4 can restrict the movable plate 7, thereby preventing the movable plate 7 from rotating and tilting on the threaded rod 6.

[0023] A rotating rod 13 is rotatably connected to the column 11 via a bearing. A fixed sleeve 14 is connected to the rotating rod 13. An arc-shaped groove 21 is provided on the fixed sleeve 14, and the arc-shaped groove 21 is spirally arranged on the fixed sleeve 14. The push block 20 slides in the arc-shaped groove 21. When the electric push rod 19 pushes the push block 20 to move along the spiral trajectory of the arc-shaped groove 21, it will generate a lateral squeezing force on the groove wall of the arc-shaped groove 21, thereby causing the rotating rod 13 to rotate and causing the pressing screw 17 to press down and fix the car door.

[0024] A movable sleeve 15 is slidably connected through the rotating rod 13. A fastening bolt 16 is threadedly connected to one side of the movable sleeve 15. A pressing screw 17 is threadedly connected to the movable sleeve 15. A rubber block 18 is connected to the end of the fastening bolt 16 and the pressing screw 17. One side of the middle section of the rotating rod 13 is flat, and the movable sleeve 15 slides in the middle section of the rotating rod 13 and is in close contact with the rotating rod 13. The rubber block 18 at the end of the fastening bolt 16 slides inside the movable sleeve 15 and is in close contact with the flat side of the rotating rod 13. The flat structure of the middle section of the rotating rod 13 restricts the rotation of the movable sleeve 15 on the rotating rod 13, ensuring that the pressing screw 17 can be aligned with the door to be fixed, and preventing the pressing position from shifting due to the rotation of the movable sleeve 15, which would affect the fixing effect.

[0025] The working principle of this utility model is as follows:

[0026] By starting the motor 5 to rotate the threaded rod 6, the movable plate 7 moves on the threaded rod 6 using the mating sleeve 8. This causes the two movable plates 7 to drive the two connecting seats 10 to move in opposite directions on the fixed seat 1 along the slide groove 4, thereby adjusting the distance between the two connecting seats 10 to accommodate different sizes of car doors. Then, by starting the electric push rod 19, the push block 20 slides in the arc groove 21 and pushes against the groove wall, so that the fixed sleeve 14 can drive the rotating rod 13 to rotate. This causes the rubber block 18 at the end of the pressing screw 17 to contact the car door wall. By turning the pressing screw 17, pressure is applied to the car door, fixing it on the worktable 12.

[0027] 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.

[0028] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A welding fixture for automobile doors, comprising a fixing seat (1), characterized in that: The fixed base (1) has a fixed hole (2) and a fixed waist hole (3) on both sides. The fixed base (1) has a sliding groove (4) inside. The fixed base (1) has a motor (5) fixedly installed on it. The output shaft of the motor (5) is connected to a threaded rod (6). The two ends of the threaded rod (6) are slidably installed with movable plates (7). The movable plates (7) are fixedly installed with mating sleeves (8). The movable plates (7) are connected to sliders (9) through the side walls of the fixed base (1) on both sides. The sliders (9) are connected to a connecting seat (10) above them. The connecting seat (10) is connected to two columns (11) on both sides above. A workbench (12) is connected to the column (11). A rotating rod (13) is rotatably connected to the column (11) via a bearing. A fixed sleeve (14) is connected to the rotating rod (13). A movable sleeve (15) is slidably connected through the rotating rod (13). A fastening bolt (16) is threaded to one side of the movable sleeve (15). A pressing screw (17) is threaded to the movable sleeve (15). A rubber block (18) is connected to the end of the fastening bolt (16) and the pressing screw (17).

2. The automotive door welding fixture according to claim 1, characterized in that: An electric push rod (19) is fixedly installed on one side of the workbench (12). The movable end of the electric push rod (19) is connected to a push block (20). The movable plate (7) slides in the groove (4) and contacts the groove wall.

3. The automotive door welding fixture according to claim 2, characterized in that: The fixed sleeve (14) has an arc groove (21) and the arc groove (21) is spirally arranged on the fixed sleeve (14), and the push block (20) slides in the arc groove (21).

4. The automotive door welding fixture according to claim 1, characterized in that: The threaded rod (6) is rotatably connected to the fixed seat (1) through a bearing. The two ends of the threaded rod (6) are provided with threads in opposite directions, and the threaded rod (6) is threadedly engaged with the mating sleeve (8).

5. The automotive door welding fixture according to claim 1, characterized in that: The middle section of the rotating rod (13) is flat on one side, and the movable sleeve (15) slides in the middle section of the rotating rod (13) and is in contact with the rotating rod (13). The rubber block (18) at the end of the fastening bolt (16) slides in the movable sleeve (15) and is in close contact with the flat side of the rotating rod (13).

6. The automotive door welding fixture according to claim 1, characterized in that: The fixed base (1) is connected to guide rails (22) on both sides, and the slider (9) slides in cooperation with the guide rails (22).

Images