Fixing device for semitrailer girder welding

Abstract

The utility model relates to the technical field of semitrailer girder welding auxiliary equipment, and discloses a fixing device for semitrailer girder welding. The fixing device for semitrailer girder welding comprises a supporting plate, universal wheels, moving plates, fixing rods, clamping plates and springs, the universal wheels are installed at the bottom of the supporting plate, the two moving plates are arranged on the supporting plate in a sliding mode, the two fixing rods are fixedly connected to the moving plates, the clamping plates are arranged on the fixing rods in a sliding mode, and the springs are arranged on the clamping plates. The contact face of the clamping plate and the semitrailer girder is an inclined face, the fixing rod is sleeved with a spring, and the two ends of the spring are connected with the clamping plate and the fixing rod respectively. The semitrailer girder is erected through the moving plate, so that the semitrailer girder is continuously moved, and welding of all welding points of the semitrailer girder is facilitated; and the distance between the two movable plates is adjusted, so that the fixing device can quickly meet the fixing requirements of girders with different lengths, and the flexibility and the use efficiency of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-trailer beam welding auxiliary equipment and discloses a fixing device for semi-trailer beam welding. Background Art

[0002] The semitrailer frame is a major component of the vehicle's frame, typically located in the center. It's also known as the longitudinal beam. It consists of a left longitudinal beam and a right longitudinal beam, typically an I-shaped cross-section consisting of an upper wing, a lower wing, and a central web. The semitrailer frame is a critical load-bearing member responsible for supporting the vehicle's weight and the weight of the cargo it carries, and transferring this load to the wheels.

[0003] During the manufacturing and maintenance of semi-trailers, high-quality welding of the semi-trailer beam is a key step in ensuring the structural strength and safety of the vehicle. Semi-trailer beam fixing devices usually use fixed support frames or manually adjusted clamps, but different semi-trailer beam lengths require different fixing methods, resulting in an inability to quickly adapt to beams of different lengths. During the fixing process, the semi-trailer beam cannot be completely fixed. During the welding process, the semi-trailer beam must be constantly moved, which makes it inconvenient to weld the semi-trailer beam at various welding points.

[0004] Therefore, there is a need for a semi-trailer beam welding fixing device that can erect the beam and quickly meet the fixing requirements of beams of different lengths. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art that semi-trailer beams of different lengths require different fixing methods, resulting in the inability to quickly adapt to beams of different lengths, and during the fixing process, the semi-trailer beam cannot be completely fixed, and the semi-trailer beam needs to be continuously moved during the welding process, which makes it inconvenient to weld various welding points of the semi-trailer beam, the utility model provides a semi-trailer beam welding fixing device that can set up the beam and quickly meet the fixing requirements of beams of different lengths.

[0006] The technical solution is: a fixing device for welding a semi-trailer beam, including a support plate, a universal wheel, a movable plate, a fixed rod, a splint, a spring, a rubber plate and a pull rod. A plurality of universal wheels are installed at the bottom of the support plate, two movable plates are slidingly arranged on the support plate, two fixed rods are fixedly connected to the movable plate, a splint is slidingly arranged on the fixed rod, the contact surface between the splint and the semi-trailer beam is an inclined surface, a spring is sleeved on the fixed rod, the two ends of the spring are respectively connected to the splint and the fixed rod, a rubber plate is provided on the splint, a pull rod is fixedly connected to the splint, and also includes a motor, a bidirectional screw rod and a guide rod. A motor is installed on the left side of the support plate, the output shaft of the motor is connected to the bidirectional screw rod through a coupling, the bidirectional screw rod is threadedly connected to the movable plate, a guide rod is fixedly connected to the support plate, and the guide rod is slidably connected to the movable plate.

[0007] Furthermore, it also includes a fixing plate, a cylinder, a push frame and screws. The fixing plate is installed in the middle of the support plate, the cylinder is installed on the fixing plate, the push frame is connected to the telescopic part of the cylinder, and two screws are threadedly arranged on the fixing plate.

[0008] Furthermore, it also includes a smoke eliminator, a sliding plate, an activated carbon plate and a handle. Two smoke eliminators are installed on the support plate. Two sliding plates are slidingly arranged at the bottom of the support plate. An activated carbon plate is arranged inside the sliding plate. A handle is fixedly connected to the front side of the sliding plate.

[0009] Furthermore, a plastic plate is also included, and the push frame is provided with a plastic plate inside.

[0010] Furthermore, it also includes a rubber sleeve, and the pull rod is covered with the rubber sleeve.

[0011] Furthermore, it also includes an anti-slip cover, and the handle is covered with an anti-slip cover.

[0012] Compared with the prior art, the utility model provides a fixing device for welding a semi-trailer beam, which has the following beneficial effects: 1. The semi-trailer beam is erected by a movable plate, thereby eliminating the need to continuously move the semi-trailer beam, making it convenient to weld various welding points on the semi-trailer beam; by adjusting the distance between the two movable plates, the fixing device can quickly meet the fixing requirements of beams of different lengths, thereby improving the flexibility and utilization efficiency of the device.

[0013] 2. By controlling the extension and retraction of the telescopic rod of the cylinder, the push frame moves together with the semi-trailer beam, thereby facilitating the loading and unloading of materials.

[0014] 3. By moving the fume eliminator, the harmful gases generated during welding are sucked into the sliding plate. The activated carbon plate can effectively absorb the harmful substances in the harmful gases, thereby preventing these harmful gases from drifting into the air and avoiding inhalation by operators to cause health hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 This is a three-dimensional structural sectional view of components such as the support plate, bidirectional screw rod and guide rod of the utility model.

[0017] Figure 3 This is a three-dimensional structural cross-sectional view of the components of the utility model, including the movable plate, the clamping plate and the rubber plate.

[0018] Figure 4 It is a three-dimensional structural diagram of the fixing rod, spring, pull rod and other components of the utility model.

[0019] Figure 5 This is a three-dimensional structural sectional view of the fixing plate, cylinder, screws and other components of the utility model.

[0020] Figure 6 This is a three-dimensional structural cross-sectional view of the smoke eliminator, sliding plate, activated carbon plate and other components of the utility model.

[0021] Figure 7 This is a three-dimensional structural cross-sectional view of the activated carbon plate, handle, anti-slip ring and other components of the utility model.

[0022] The names and serial numbers of the parts in the figure are: 1. Support plate, 2. Universal wheel, 3. Motor, 4. Bidirectional screw, 5. Moving plate, 6. Guide rod, 7. Fixed rod, 8. Clamp, 9. Spring, 10. Rubber plate, 11. Pull rod, 12. Fixed plate, 13. Cylinder, 14. Push rack, 15. Plastic plate, 16. Screw, 17. Smoke eliminator, 18. Sliding plate, 19. Activated carbon plate, 20. Handle, 21. Rubber sleeve, 22. Anti-slip sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1: A fixing device for welding a semi-trailer beam, see Figures 1-6, including a support plate 1, a universal wheel 2, a mobile plate 5, a fixed rod 7, a plywood 8, a spring 9, a rubber plate 10 and a pull rod 11. Four universal wheels 2 are installed at the bottom of the support plate 1. Two mobile plates 5 are slidingly arranged on the support plate 1. Two fixed rods 7 are fixedly connected to the mobile plate 5. A plywood 8 is slidingly arranged on the fixed rod 7. The contact surface between the plywood 8 and the semi-trailer beam is an inclined surface. A spring 9 is sleeved on the fixed rod 7. The two ends of the spring 9 are respectively connected to the plywood 8 and the fixed rod 7. A rubber plate 10 is provided on the plywood 8 to increase friction. , to prevent the beam from sliding, a pull rod 11 is fixedly connected to the splint 8, which increases the fulcrum of the hand and the splint 8, so as to pull the splint 8. A motor 3 is installed on the left side of the support plate 1, and the output shaft of the motor 3 is connected to the bidirectional screw rod 4 through a coupling. The bidirectional screw rod 4 is threadedly connected to the movable plate 5. A guide rod 6 is fixedly connected to the support plate 1, and the guide rod 6 is slidably connected to the movable plate 5 to ensure the smooth movement of the movable plate 5. A rubber ring 21 is provided on the pull rod 11. The rubber ring 21 reduces the pressure between the hand and the pull rod 11 and increases the comfort of the hand.

[0025] When welding is required on the semi-trailer beam, the support plate 1 should be moved to the designated position first. This process is achieved by pushing the support plate 1 to rotate the universal wheel 2. Next, the semi-trailer beam is hoisted above the mobile plate 5 and slowly moved downward so that the clamping plate 8 is squeezed and moved outward. The spring 9 is then compressed and the semi-trailer beam is continued to be moved downward until it contacts the mobile plate 5. The semi-trailer beam is erected, thereby eliminating the need to continue moving the semi-trailer beam, making it easier to weld various welding points on the semi-trailer beam. When the semi-trailer beam is completely placed on the mobile plate 5, the semi-trailer beam is released. When fixing the semi-trailer beams of different lengths, the motor 3 is started, and the output shaft of the motor 3 rotates to drive the bidirectional screw 4 to rotate, so that the movable plate 5 moves outward along the guide rod 6, thereby adjusting the distance between the two movable plates 5, so that the fixing device can quickly meet the fixing requirements of beams of different lengths, thereby improving the flexibility and use efficiency of the device. After adjusting the movable plate 5 to the appropriate position, the motor 3 is turned off.

[0026] Example 2: Based on Example 1, please refer to Figure 5 A fixing plate 12 is installed in the middle of the support plate 1, and a cylinder 13 is installed on the fixing plate 12. The extension of the cylinder 13 is connected to a push frame 14. Two screws 16 for locking the fixing plate 12 are threadedly provided on the fixing plate 12. A plastic plate 15 is provided inside the push frame 14. The plastic plate 15 increases the friction between the push frame 14 and the semi-trailer beam to prevent the semi-trailer beam from moving.

[0027] When it is necessary to place and fix the semi-trailer beam, first insert the semi-trailer beam into the pushing frame 14, then start the cylinder 13, control its telescopic rod to retract, and move the pushing frame 14 together with the semi-trailer beam downward, so that its clamping plate 8 clamps the semi-trailer beam, thereby fixing it on the moving plate 5. After welding is completed, pull the clamping plate 8 outward so that the clamping plate 8 no longer clamps the semi-trailer beam, and then control the telescopic rod of the cylinder 13 to extend, so that the pushing frame 14 moves upward together with the semi-trailer beam until the semi-trailer beam is completely separated from the moving plate 5, thereby achieving the purpose of facilitating loading and unloading.

[0028] See also Figure 1 、 Figure 6 and Figure 7 Two smoke eliminators 17 are installed on the support plate 1, and two sliding plates 18 are slidingly arranged at the bottom of the support plate 1. An activated carbon plate 19 is arranged inside the sliding plate 18. A handle 20 is fixedly connected to the front side of the sliding plate 18, and an anti-slip cover 22 is provided on the handle 20 to ensure that the sliding plate 18 feels comfortable and not easy to slip when pulling.

[0029] When welding is in progress, the fume eliminator 17 is started, and the fume eliminator 17 sucks the harmful gases generated during welding into the sliding plate 18. The activated carbon plate 19 can effectively absorb the harmful substances in the harmful gases, thereby preventing these harmful gases from drifting into the air and avoiding inhalation by the operators to cause health hazards. The clean gas filtered by the activated carbon plate 19 is discharged through the exhaust hole at the bottom of the sliding plate 18.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing device for welding a semi-trailer beam, comprising a support plate (1), a universal wheel (2), a movable plate (5), a fixed rod (7), a clamping plate (8), a spring (9), a rubber plate (10) and a pull rod (11), wherein a plurality of universal wheels (2) are installed at the bottom of the support plate (1), two movable plates (5) are slidingly arranged on the support plate (1), two fixed rods (7) are fixedly connected to the movable plate (5), a clamping plate (8) is slidingly arranged on the fixed rod (7), the contact surface between the clamping plate (8) and the semi-trailer beam is an inclined surface, a spring (9) is sleeved on the fixed rod (7), the two ends of the spring (9) are respectively connected to the clamping plate (8) and the fixed rod (7), a rubber plate (10) is arranged on the clamping plate (8), and a pull rod (11) is fixedly connected to the clamping plate (8), characterized in that The invention also comprises a motor (3), a bidirectional screw rod (4) and a guide rod (6); the motor (3) is installed on the left side of the support plate (1); the output shaft of the motor (3) is connected to the bidirectional screw rod (4) through a coupling; the bidirectional screw rod (4) is threadedly connected to the movable plate (5); the guide rod (6) is fixedly connected to the support plate (1); and the guide rod (6) is slidably connected to the movable plate (5).

2. A fixing device for welding a semi-trailer beam according to claim 1, characterized in that: The invention also comprises a fixing plate (12), a cylinder (13), a push frame (14) and screws (16). The fixing plate (12) is installed in the middle of the support plate (1), the cylinder (13) is installed on the fixing plate (12), the push frame (14) is connected to the telescopic part of the cylinder (13), and two screws (16) are threadedly arranged on the fixing plate (12).

3. A fixing device for welding a semi-trailer beam according to claim 2, characterized in that: The utility model also includes a smoke remover (17), a sliding plate (18), an activated carbon plate (19) and a handle (20). Two smoke removers (17) are installed on the support plate (1). Two sliding plates (18) are slidingly arranged at the bottom of the support plate (1). The activated carbon plate (19) is arranged inside the sliding plate (18). The front side of the sliding plate (18) is fixedly connected with the handle (20).

4. A fixing device for welding a semi-trailer beam according to claim 3, characterized in that: The push frame (14) further comprises a plastic plate (15), and the push frame (14) is internally provided with the plastic plate (15).

5. A fixing device for welding a semi-trailer beam according to claim 4, characterized in that: It also includes a rubber sleeve (21), and the pull rod (11) is sleeved with the rubber sleeve (21).

6. A fixing device for welding a semi-trailer beam according to claim 5, characterized in that: The utility model also comprises an anti-slip cover (22), and the handle (20) is provided with the anti-slip cover (22).

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