Turnover semitrailer longitudinal beam welding production clamp

Abstract

The turnover semitrailer longitudinal beam welding production clamp comprises a U-shaped base, the inner wall of one side of the U-shaped base is rotationally connected with a rotating rod penetrating through one side of the U-shaped base, the outer wall of the rotating rod is in damping sliding connection with two containing plates, the inner walls of one sides of the two containing plates are both in sliding connection with L-shaped clamping plates, and the L-shaped clamping plates are arranged on the outer walls of the L-shaped clamping plates. Two first springs are fixedly connected between the sides, close to each other, of the L-shaped clamping plate and the containing plate, and the side, away from the first springs, of the L-shaped clamping plate is tightly attached to a welded longitudinal beam. Two L-shaped clamping plates can push two welded longitudinal beams to be close to each other and make contact with each other through elastic force of two first springs for clamping and fixing, a pressing plate can press and fix the tops of the welded longitudinal beams all the time through elastic force of two second springs, and a rotating rod can rotate and fix the rotating angle through threads to achieve overturning. Operation is easy, and clamping is stable.

Description

Technical Field

[0001] The utility model relates to the field of semitrailer longitudinal beam processing, in particular to a reversible semitrailer longitudinal beam welding production fixture. Background Art

[0002] The frame is the most important load-bearing component in a car, and the frame longitudinal beam is one of the key parts, so the longitudinal beam plays an important load-bearing role in the car. The side beam frame, center beam frame, etc. of the car all contain longitudinal beams. The longitudinal beams are usually stamped from low-alloy steel plates, and the cross-sectional shape is generally groove-shaped, and some are made into Z-shaped or box-shaped cross-sections.

[0003] The utility model with the authorization announcement number CN210789800U discloses a reversible welding fixture, including a welding platform, a clamping mechanism and a welding work head, a slot is transversely provided on the upper end of the welding platform, a dust removal fan is fixedly provided at the middle position of the upper end of the welding platform, the size of the dust removal fan is larger than the slot, a driving motor is provided on one side of the welding platform, a rotating shaft is transversely provided through the side wall of the inner cavity of the welding platform, the rotating shaft is located at both sides of the dust removal fan and is connected through the driving block, a connecting plate is fixedly connected to the upper end of the driving block, a side plate is provided at the upper end of the connecting plate, a clamping mechanism is provided on the inner side of the side plate, one group of clamping mechanisms is rotatably connected to one group of side plates through a bearing seat, another group of clamping mechanisms is fixedly connected to a turntable, a rotating motor is provided on the outer side of the other group of side plates, and the power output end of the rotating motor passes through the other group of side plates and is fixedly connected to the turntable. The utility model has a good effect when clamping and fixing, and the fixture can be flipped during welding, which is convenient for multi-directional welding.

[0004] The above utility model patent adopts a mechanical clamping method, which cannot be fine-tuned according to the needs of the staff. Therefore, it is difficult for the two longitudinal beams to contact accurately to facilitate the staff to weld them. Therefore, the technical personnel in this field provide a reversible semi-trailer longitudinal beam welding production fixture to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model aims to provide a reversible semi-trailer longitudinal beam welding production fixture to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flip semi-trailer longitudinal beam welding production fixture, comprising a U-shaped base, an inner wall of one side of the U-shaped base is rotatably connected to a rotating rod that passes through one side of the U-shaped base, and an outer wall of the rotating rod is damped and slidably connected to two placement plates, and the inner walls of one side of the two placement plates are both slidably connected to an L-shaped clamping plate, and two first springs are fixedly connected between the L-shaped clamping plate and the side of the placement plate that are close to each other, and the side of the L-shaped clamping plate away from the first spring is tightly fitted with the welded longitudinal beam.

[0007] As a further solution of the utility model: a waste receiving box is placed on the bottom inner wall of the U-shaped base, and the waste receiving box is located directly below the two placement plates.

[0008] As a further solution of the utility model: one end of the rotating rod located on the outside of the U-shaped base is fixedly connected to a handle, the two placement plates are arranged at equal intervals, and the tops of the two placement plates are fixedly connected to a grip.

[0009] As a further solution of the utility model: one end of the rotating rod located on the outside of the U-shaped base is fixedly connected to a handle, the two placement plates are arranged at equal intervals, and the tops of the two placement plates are fixedly connected to a grip.

[0010] As a further solution of the utility model: a thread is arranged on the outer wall of the rotating rod, and the thread is connected with a thread passing through one side of the U-shaped base.

[0011] As a further solution of the utility model: the top of the pressing plate is fixedly connected to a limiting rod, and the limiting rod passes through the L-shaped clamping plate and extends to the top of the L-shaped clamping plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Hold the limit rod and pull up the pressure plate to lift it, then place the welded longitudinal beam on the placement plate, then hold the limit rod to drive the L-shaped clamping plate to move to compress the spring. When the limit rod is released, the L-shaped clamping plate will be pushed toward the welded longitudinal beam and contact it due to the elastic force of the two first springs. The above operation can also be repeated on the placement plate on the other side. When the two welded longitudinal beams are pushed to contact by the two L-shaped clamping plates, the clamping and fixing of the two welded longitudinal beams can be completed. The pressure plate can be driven down by the elastic force of the two second springs and always pressed on the top of the welded longitudinal beam to fix it. The limit rod has a limiting effect on the pressure plate to prevent the pressure plate from shifting. The two placement plates can move on the rotating rod to adjust the spacing. After turning the handle, the rotating rod and the two placement plates can be driven to rotate and flip. Because the rotating rod is provided with a thread, the rotating position of the rotating rod can be fixed after it is rotated.

[0014] The utility model is easy to use, and the two L-shaped clamping plates can push the two welded longitudinal beams to be close to each other and contact each other for clamping and fixing through the elastic force of the two first springs, and the pressure plate will always press and fix the top of the welded longitudinal beam through the elastic force of the two second springs. The rotating rod can be rotated and flipped by fixing the rotating angle through the thread, which is simple to operate and the clamping is stable. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a three-dimensional explosion schematic diagram of the utility model;

[0017] Figure 3 It is a partial three-dimensional schematic diagram of the placement plate of the utility model.

[0018] In the figure: 1, U-shaped base; 2, waste receiving box; 3, handle; 4, thread; 5, placement plate; 6, first spring; 7, limit rod; 8, grip; 9, welded longitudinal beam; 10, L-shaped clamping plate; 11, second spring; 12, pressure plate; 13, rotating rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 3 In an embodiment of the utility model, a flip semi-trailer longitudinal beam welding production fixture comprises a U-shaped base 1, an inner wall of one side of the U-shaped base 1 is rotatably connected to a rotating rod 13 that passes through one side of the U-shaped base 1, and an outer wall of the rotating rod 13 is damped and slidably connected to two placement plates 5, and an inner wall of one side of the two placement plates 5 is slidably connected to an L-shaped clamping plate 10, and two first springs 6 are fixedly connected between the L-shaped clamping plate 10 and the side of the placement plate 5 that is close to each other, and a welded longitudinal beam 9 is tightly fitted on the side of the L-shaped clamping plate 10 away from the first spring 6.

[0021] In this embodiment, the bottom of the L-shaped clamp 10 is fixedly connected to two second springs 11, and the bottom ends of the two second springs 11 are fixedly connected to the same pressure plate 12. The bottom of the pressure plate 12 is tightly fitted with the top of the welded longitudinal beam 9. After holding the limit rod 7 and pulling up the pressure plate 12 for lifting, the welded longitudinal beam 9 is placed on the placement plate 5, and then the limit rod 7 is held to drive the L-shaped clamp 10 to move to compress the spring. When the limit rod 7 is released, the L-shaped clamp 10 will be pushed toward the welded longitudinal beam 9 and contact it due to the elastic force of the two first springs 6. The above operation can also be repeated on the placement plate 5 on the other side. When the two welded longitudinal beams 9 are pushed to contact by the two L-shaped clamps 10, the clamping and fixing of the two welded longitudinal beams 9 can be completed. The pressure plate 12 can be driven down by the elastic force of the two second springs 11 and always presses on the top of the welded longitudinal beam 9 to fix it.

[0022] In this embodiment, a waste receiving box 2 is placed on the bottom inner wall of the U-shaped base 1 , and the waste receiving box 2 is located directly below the two placement plates 5 .

[0023] In this embodiment, a handle 3 is fixedly connected to one end of the rotating rod 13 located outside the U-shaped base 1, two placement plates 5 are arranged at equal intervals, and a grip 8 is fixedly connected to the top of the two placement plates 5.

[0024] In this embodiment, a thread 4 is provided on the outer wall of the rotating rod 13, and the thread 4 is threadedly connected to one side of the U-shaped base 1. The two placement plates 5 can be moved on the rotating rod 13 to adjust the spacing. After rotating the handle 3, the rotating rod 13 and the two placement plates 5 can be driven to rotate and flip. Because the thread 4 is provided on the rotating rod 13, its rotation position can be fixed after the rotating rod 13 is rotated.

[0025] In this embodiment, the top of the pressure plate 12 is fixedly connected to a limiting rod 7, which passes through the L-shaped clamping plate 10 and extends to the top of the L-shaped clamping plate 10. The limiting rod 7 limits the pressure plate 12 to prevent the pressure plate 12 from deflecting.

[0026] The working principle of the utility model is as follows: after holding the limit rod 7 and pulling up the pressure plate 12 for lifting, the welded longitudinal beam 9 is placed on the placement plate 5, and then the limit rod 7 is held to drive the L-shaped clamping plate 10 to move to compress the spring. When the limit rod 7 is released, the L-shaped clamping plate 10 will be pushed toward the welded longitudinal beam 9 and contact each other due to the elastic force of the two first springs 6. The above operation can also be repeated on the placement plate 5 on the other side. When the two welded longitudinal beams 9 are pushed to contact by the two L-shaped clamping plates 10, the two welded longitudinal beams 9 can be completed. The beam 9 is clamped and fixed, and the pressure plate 12 can be driven down by the elastic force of the two second springs 11 to always press on the top of the welded longitudinal beam 9 to fix it. The limit rod 7 limits the pressure plate 12 to prevent the pressure plate 12 from shifting. The two placement plates 5 can move on the rotating rod 13 to adjust the spacing. After turning the handle 3, the rotating rod 13 and the two placement plates 5 can be driven to rotate and flip. Because the rotating rod 13 is provided with a thread 4, its rotation position can be fixed after the rotating rod 13 is rotated.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A reversible semi-trailer longitudinal beam welding production fixture, comprising a U-shaped base (1), characterized in that: The inner wall of one side of the U-shaped base (1) is rotatably connected to a rotating rod (13) that passes through one side of the U-shaped base (1); the outer wall of the rotating rod (13) is connected to two placement plates (5) in a damping sliding manner; the inner walls of one side of the two placement plates (5) are both slidably connected to an L-shaped clamping plate (10); two first springs (6) are fixedly connected between the side of the L-shaped clamping plate (10) and the placement plate (5) that are close to each other; and the side of the L-shaped clamping plate (10) that is away from the first spring (6) is tightly fitted with a welded longitudinal beam (9).

2. The reversible semi-trailer longitudinal beam welding production fixture according to claim 1 is characterized in that: Two second springs (11) are fixedly connected to the bottom of the L-shaped clamping plate (10), and the bottom ends of the two second springs (11) are fixedly connected to the same pressing plate (12), and the bottom of the pressing plate (12) is tightly fitted to the top of the welded longitudinal beam (9).

3. The reversible semi-trailer longitudinal beam welding production fixture according to claim 1 is characterized in that: A waste receiving box (2) is placed on the inner wall of the bottom of the U-shaped base (1), and the waste receiving box (2) is located directly below the two placement plates (5).

4. The reversible semitrailer longitudinal beam welding production fixture according to claim 1 is characterized in that: One end of the rotating rod (13) located outside the U-shaped base (1) is fixedly connected to a handle (3), the two placement plates (5) are arranged at equal intervals, and the tops of the two placement plates (5) are fixedly connected to a grip (8).

5. The reversible semitrailer longitudinal beam welding production fixture according to claim 1 is characterized in that: A thread (4) is provided on the outer wall of the rotating rod (13), and the thread (4) is threadedly connected to one side of the U-shaped base (1).

6. The reversible semitrailer longitudinal beam welding production fixture according to claim 2 is characterized in that: The top of the pressing plate (12) is fixedly connected to a limiting rod (7), and the limiting rod (7) passes through the L-shaped clamping plate (10) and extends to the top of the L-shaped clamping plate (10).

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