Main beam positioning device for groove rail semitrailer manufacturing

Abstract

The utility model provides a main beam positioning device for manufacturing a groove rail semitrailer, which relates to the technical field of semitrailer main beam positioning and comprises two transverse frames, longitudinal frames are fixedly connected between the front ends and the rear ends of the two transverse frames, a motor is mounted on the front surface of one of the longitudinal frames, and a motor is mounted on the rear surface of the other of the longitudinal frames. The output end of the motor rotationally penetrates through the outer surface of the longitudinal frame and extends to the other side. According to the utility model, the longitudinal beams in the main beam are placed in the bayonets of the U-shaped clamps on the same side, then the longitudinal beams are clamped and fixed through the cooperation of the cylinders and the extrusion plates, then the cross beam is placed at a designated position, the motor is started, the motor drives the bidirectional screw rod to rotate so as to drive the two mounting racks to be close to each other, and meanwhile, the two mounting racks are fixed. The two longitudinal beams can approach along with the mounting frame and tightly clamp the cross beam, then positioning of the main beam is completed, the distance between the longitudinal beams is convenient to adjust, and the manufacturing efficiency of the groove rail semitrailer is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of the main beam positioning of semi-trailer trucks, in particular to a main beam positioning device for manufacturing a trough-bar semi-trailer truck. Background Art

[0002] The main beam of a trough-bar semi-trailer truck is the main load-bearing component of the semi-trailer truck, which bears the weight of the goods and various dynamic loads during driving. It mainly consists of longitudinal beams and cross beams. Among them, the longitudinal beams are relatively long, and the cross beams are welded at the positions between the two longitudinal beams. The number of cross beams in different trough-bar semi-trailer truck main beams is inconsistent.

[0003] When welding the main beam during the manufacturing process of a trough-bar semi-trailer truck, it is necessary to place multiple cross beams at the specified positions between the two longitudinal beams and then weld them. However, the longitudinal beams are long and have a large measurement, so it is very difficult to adjust the distance between the two main beams, resulting in low manufacturing efficiency. Therefore, in view of the above problems, we propose a new main beam positioning device for manufacturing a trough-bar semi-trailer truck. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that when welding the main beam during the manufacturing process of a trough-bar semi-trailer truck in the prior art, it is necessary to place multiple cross beams at the specified positions between the two longitudinal beams and then weld them. However, the longitudinal beams are long and have a large measurement, so it is very difficult to adjust the distance between the two main beams, resulting in low manufacturing efficiency, and to propose a main beam positioning device for manufacturing a trough-bar semi-trailer truck.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a main beam positioning device for manufacturing a trough-bar semi-trailer truck, including two cross frames. Longitudinal frames are fixedly connected between the front and rear ends of the two cross frames. A motor is installed on the front surface of one of the longitudinal frames. The output end of the motor rotates through the outer surface of the longitudinal frame and extends to the other side. A bidirectional lead screw is rotatably connected between the outer surfaces of the two longitudinal frames near the middle position. The output end of the motor is fixedly connected to the front end of the bidirectional lead screw. Mounting frames are symmetrically arranged between the outer surfaces of the two cross frames. Sliding mechanisms are arranged at the positions near both ends of the top and bottom of the mounting frame. Multiple groups of mounting holes are equidistantly opened on the top of the mounting frame. Clamping mechanisms are arranged at the positions of the mounting holes on the top of the mounting frame.

[0006] Preferably, the clamping mechanism includes a U-shaped clamp, and mounting seats are symmetrically and fixedly connected to the outer surfaces of both sides of the U-shaped clamp.

[0007] Preferably, the mounting seats and the mounting holes are fixedly connected by bolts, and the outer surface of the bidirectional lead screw threadedly penetrates through the outer surfaces of the two mounting frames.

[0008] Preferably, a cylinder is installed on the outer surface of the U-shaped clamp. The telescopic end of the cylinder slides through the outer surface of the U-shaped clamp and extends to the other side. The telescopic end of the cylinder is fixedly connected with a pressing plate, and the bottom of the pressing plate is in sliding fit with the inner bottom of the U-shaped clamp.

[0009] Preferably, the sliding mechanism includes a wheel frame, and the wheel frame is fixedly installed on the outer surface of the mounting frame.

[0010] Preferably, a rotating shaft is symmetrically and fixedly connected between the inner walls of the wheel frame. A bearing is installed on the outer surface of the rotating shaft, and a roller is installed on the outer surface of the bearing.

[0011] Preferably, the cross frame is U-shaped, and the outer surface of the roller is in contact with the inner wall of the cross frame.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, the longitudinal beam in the main beam is placed into the clamping opening of the U-shaped clamp on the same side. Then, the cylinder and the pressing plate cooperate to clamp and fix the longitudinal beam. After the cross beam is placed in the designated position, the motor is started. At this time, the motor drives the bidirectional lead screw to rotate, which can drive the two mounting frames to approach each other. At the same time, the two longitudinal beams will follow the mounting frames to approach and tightly clamp the cross beam, thus completing the positioning of the main beam. Moreover, the distance between the longitudinal beams is conveniently adjusted, greatly improving the manufacturing efficiency of the trough-bar semi-trailer.

[0014] 2. In the present utility model, when the motor drives the bidirectional lead screw to rotate and the mounting frames approach each other, the top and bottom of both ends of the mounting frame are in rolling friction with the inner wall of the cross frame through the rollers. Therefore, the friction force is greatly reduced, making the movement of the mounting frame smoother. Thus, the load pressure on the motor is reduced, and the service life and reliability of the device are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of a positioning device for the main beam in the manufacture of a trough-bar semi-trailer proposed by the present utility model;

[0016] Figure 2 is an unfolded view of a positioning device for the main beam in the manufacture of a trough-bar semi-trailer proposed by the present utility model;

[0017] Figure 3 is a schematic structural diagram of the sliding mechanism of a positioning device for the main beam in the manufacture of a trough-bar semi-trailer proposed by the present utility model;

[0018] Figure 4 is a schematic structural diagram of the clamping mechanism of a positioning device for the main beam in the manufacture of a trough-bar semi-trailer proposed by the present utility model.

[0019] Legend: 1. Horizontal frame; 11. Vertical frame; 2. Sliding mechanism; 201. Wheel frame; 202. Rotating shaft; 203. Bearing; 204. Roller; 3. Clamping mechanism; 301. U-shaped clamp; 302. Cylinder; 303. Extrusion plate; 304. Mounting seat; 4. Motor; 41. Bi-directional lead screw; 42. Mounting frame; 43. Mounting hole. Detailed implementation

[0020] In order to more clearly understand the above-mentioned objects, features, and advantages of the present invention, the present invention will be further described below in conjunction with the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0022] Embodiment 1: As Figures 1-4 shown, the present invention provides a main beam positioning device for manufacturing a trough-bar semi-trailer, including two horizontal frames 1. Longitudinal frames 11 are fixedly connected between the front and rear ends of the two horizontal frames 1. A motor 4 is installed on the front surface of one of the longitudinal frames 11. The output end of the motor 4 rotates through the outer surface of the longitudinal frame 11 and extends to the other side. A bi-directional lead screw 41 is rotatably connected between the outer surfaces of the two longitudinal frames 11 near the middle. The output end of the motor 4 and the front end of the bi-directional lead screw 41 are fixedly connected. Mounting frames 42 are symmetrically arranged between the outer surfaces of the two horizontal frames 1. Sliding mechanisms 2 are arranged at the positions near both ends of the top and bottom of the mounting frame 42. Multiple groups of mounting holes 43 are equidistantly opened at the top of the mounting frame 42. A clamping mechanism 3 is arranged at the position of the mounting holes 43 on the top of the mounting frame 42. The clamping mechanism 3 includes a U-shaped clamp 301. Mounting seats 304 are symmetrically and fixedly connected to the outer surfaces on both sides of the U-shaped clamp 301. The mounting seats 304 and the mounting holes 43 are fixedly connected by bolts. The outer surface of the bi-directional lead screw 41 is threadedly penetrated through the outer surfaces of the two mounting frames 42. A cylinder 302 is installed on the outer surface of the U-shaped clamp 301. The telescopic end of the cylinder 302 slides through the outer surface of the U-shaped clamp 301 and extends to the other side. The telescopic end of the cylinder 302 is fixedly connected with an extrusion plate 303. The bottom of the extrusion plate 303 and the inner bottom of the U-shaped clamp 301 are in sliding fit.

[0023] The effect achieved by the entire Embodiment 1 is that when welding the main beam during the manufacturing process of the trough-bar semi-trailer, first use the hoisting equipment to hoist the two longitudinal beams in the semi-trailer main beam above the clamping mechanism 3 of this device, and then slowly lower it. During the process, adjust its posture. When the longitudinal beam is placed, it will fall into the clamping mouth of the U-shaped clamp 301 on the same side. Then start the cylinder 302 on the surface of the corresponding U-shaped clamp 301 to push the pressing plate 303 to tightly press against the longitudinal beam, and then the positioning operation can be completed. Then place the cross beam in the designated position, and start the motor 4. At this time, the motor 4 drives the bidirectional lead screw 41 to rotate, which can drive the two mounting brackets 42 to approach each other. At the same time, the two longitudinal beams will follow the mounting brackets 42 to approach and tightly clamp the cross beam, thus completing the positioning of the main beam. Moreover, the distance between the longitudinal beams is convenient to adjust, greatly improving the manufacturing efficiency of the trough-bar semi-trailer. The cross frame 1 and the longitudinal frame 11 are fixed by bolts to form the frame in this device. The mounting holes 43 on the surface of the mounting bracket 42 are mainly used for mounting the clamping mechanism 3, and there are multiple groups of mounting holes 43, and the number of clamping mechanisms 3 can be increased or adjusted at the mounting holes 43 in different positions according to the longitudinal beam degree in different main beams.

[0024] Embodiment 2: As Figures 1-4 shown, the sliding mechanism 2 includes a wheel frame 201, the wheel frame 201 is fixedly installed on the outer surface of the mounting bracket 42, symmetrically fixedly connected between the inner walls of the wheel frame 201 are rotating shafts 202, the outer surface of the rotating shaft 202 is equipped with bearings 203, the outer surface of the bearing 203 is equipped with rollers 204, the cross frame 1 is arranged in a U shape, and the outer surface of the roller 204 is in contact with the inner wall of the cross frame 1.

[0025] The effect achieved by the entire Embodiment 2 is that when the motor 4 drives the bidirectional lead screw 41 to rotate and the mounting brackets 42 approach each other, both the top and bottom of the two ends of the mounting bracket 42 are in rolling friction with the inner wall of the cross frame 1 through the rollers 204. Therefore, the friction force is greatly reduced, making the movement of the mounting bracket 42 smoother. Thus, the load pressure on the motor 4 is reduced, improving the service life and reliability of the device. The wheel frame 201 and the rotating shaft 202 are mainly used for mounting the rollers 204, and the rollers 204 and the rotating shaft 202 are connected through the bearings 203. Therefore, the rotational friction force is small and the rotation is smoother.

[0026] Working principle: When welding the main beam during the manufacturing process of the trough-bar semi-trailer, first use the hoisting equipment to hoist the two longitudinal beams in the semi-trailer main beam above the clamping mechanism 3 of this device, and then slowly lower them. During this process, adjust their postures. When the longitudinal beams are placed, they will fall into the clamping mouths of the U-shaped clamps 301 on the same side. Then, start the cylinder 302 on the surface of the corresponding U-shaped clamp 301 to push the pressing plate 303 to tightly press against the longitudinal beams, and then the positioning operation can be completed. Then, place the cross beam at the designated position, and start the motor 4. At this time, the motor 4 drives the bidirectional lead screw 41 to rotate, which can drive the two mounting brackets 42 to approach each other. At the same time, the two longitudinal beams will follow the mounting brackets 42 to approach and tightly clamp the cross beam, thereby completing the positioning of the main beam. Moreover, the distance between the longitudinal beams can be adjusted conveniently, greatly improving the manufacturing efficiency of the trough-bar semi-trailer. And when the motor 4 drives the bidirectional lead screw 41 to rotate and the mounting brackets 42 approach each other, the top and bottom of both ends of the mounting brackets 42 are in rolling friction with the inner wall of the cross frame 1 through the rollers 204. Therefore, the friction force is greatly reduced, making the movement of the mounting brackets 42 smoother. As a result, the load pressure on the motor 4 is reduced, and the service life and reliability of the device are improved.

[0027] The above is only the preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A positioning device for the main beam in the manufacture of a trough-bar semi-trailer, comprising two cross frames (1), characterized in that: Longitudinal frames (11) are fixedly connected between the front and rear ends of the two cross frames (1). A motor (4) is installed on the front surface of one of the longitudinal frames (11). The output end of the motor (4) rotatably penetrates the outer surface of the longitudinal frame (11) and extends to the other side. A bidirectional lead screw (41) is rotatably connected between the outer surfaces of the two longitudinal frames (11) near the middle position. The output end of the motor (4) is fixedly connected to the front end of the bidirectional lead screw (41). Mounting brackets (42) are symmetrically arranged between the outer surfaces of the two cross frames (1). Sliding mechanisms (2) are arranged at the positions near both ends of the top and bottom of the mounting bracket (42). A plurality of groups of mounting holes (43) are equidistantly formed in the top of the mounting bracket (42). A clamping mechanism (3) is arranged at the position of the mounting hole (43) on the top of the mounting bracket (42).

2. The main beam positioning device for manufacturing a trough-bar semi-trailer according to claim 1, wherein: The clamping mechanism (3) includes a U-shaped clamp (301), and mounting seats (304) are symmetrically and fixedly connected to the outer surfaces of both sides of the U-shaped clamp (301).

3. The main beam positioning device for manufacturing a trough-bar semi-trailer according to claim 2, wherein: The mounting seats (304) and the mounting holes (43) are fixedly connected by bolts, and the outer surface of the bidirectional lead screw (41) threadedly penetrates the outer surfaces of the two mounting brackets (42).

4. The main beam positioning device for manufacturing a trough-bar semi-trailer according to claim 3, wherein: A cylinder (302) is installed on the outer surface of the U-shaped clamp (301). The telescopic end of the cylinder (302) slidably penetrates the outer surface of the U-shaped clamp (301) and extends to the other side. The telescopic end of the cylinder (302) is fixedly connected to a pressing plate (303), and the bottom of the pressing plate (303) is slidably attached to the inner bottom of the U-shaped clamp (301).

5. The main beam positioning device for manufacturing a trough-bar semi-trailer according to claim 4, characterized in that: The sliding mechanism (2) includes a wheel frame (201), and the wheel frame (201) is fixedly installed on the outer surface of the mounting bracket (42).

6. The main beam positioning device for manufacturing a trough-bar semi-trailer according to claim 5, characterized in that: Rotating shafts (202) are symmetrically and fixedly connected between the inner walls of the wheel frame (201). Bearings (203) are installed on the outer surfaces of the rotating shafts (202), and rollers (204) are installed on the outer surfaces of the bearings (203).

7. The main beam positioning device for manufacturing a trough-bar semi-trailer according to claim 6, characterized in that: The cross frame (1) is U-shaped, and the outer surface of the roller (204) is in contact with the inner wall of the cross frame (1).

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