Roller carrier device of automatic seam welding machine

Abstract

The utility model relates to the technical field of roller carrier devices, in particular to an automatic seam welding machine roller carrier device which comprises two bases, two machine frames fixedly connected to the upper surfaces of the two bases and a fixing plate, a rotating plate is rotatably connected to the lower surface of the fixing plate, rotating shafts are fixedly connected to the two ends of the rotating plate, and the rotating shafts are fixedly connected to the lower surface of the fixing plate. The surfaces of the two rotating shafts are rotationally connected with driving rods, and the ends, away from the rotating plate, of the two driving rods are rotationally connected with fixing shafts; the number of the base frames is two, the lower surfaces of the two base frames are fixedly connected with the surfaces of the two corresponding fixing shafts respectively, and the two base frames are arranged on the upper surface of the rack in a sliding mode; by means of synchronous opposite movement of the two roller sets, centering clamping of a workpiece can be achieved, the clamping effect is improved, and meanwhile the problem that the quality of a welding seam is uneven due to eccentric rotation of the workpiece caused by single-side pressing is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of roller frame devices, and in particular to an automatic seam welding machine roller frame device. Background Technology

[0002] The automatic seam welding machine roller frame device is a key piece of equipment used to assist in welding cylindrical or ring-shaped workpieces. It is widely used in circumferential seam welding in industries such as pipelines and pressure vessels.

[0003] In the prior art, the roller frame device of the automatic seam welding machine is mainly composed of roller assemblies, which include active rollers: driven by a motor, usually equipped with frequency conversion speed regulation function to control the rotation speed of the workpiece; and driven rollers: which play a supporting role, and some are designed with adjustable spacing to adapt to different workpiece diameters.

[0004] However, although some driven rollers in the roller frame device of the existing automatic seam welding machine have an adjustable spacing design, simply adjusting the driven gear will cause one-sided clamping and pressure, which can easily cause the workpiece to rotate eccentrically. This will cause the workpiece to swing due to inertia, resulting in fluctuations in welding speed and uneven weld quality. Heavy workpieces may also experience accelerated roller wear or damage to the drive system due to uneven load.

[0005] Based on this, an automatic seam welding machine roller frame device is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide an automatic seam welding machine roller frame device to solve the problems mentioned in the background art.

[0007] The technical solution of this utility model is: an automatic seam welding machine roller frame device, including two bases, two frames fixedly connected to the upper surfaces of the two bases, and also including;

[0008] A fixed plate, wherein a rotating plate is rotatably connected to the lower surface of the fixed plate, and a rotating shaft is fixedly connected to both ends of the rotating plate. A drive rod is rotatably connected to the surface of each of the two rotating shafts, and a fixed shaft is rotatably connected to the end of each of the two drive rods away from the rotating plate.

[0009] The base frame has two base frames, the lower surfaces of the two base frames are respectively fixedly connected to the surfaces of the two corresponding fixed shafts, and the two base frames are slidably mounted on the upper surface of the frame.

[0010] In some embodiments, a motor is fixedly mounted on the upper surface of the fixed plate, the output end of the motor passes through the lower surface of the rotating plate and is fixedly connected to the upper surface of the rotating plate, and a housing is fixedly connected to the upper surface of the fixed plate, with the motor disposed inside the housing.

[0011] In some embodiments, the upper surfaces of both frames are provided with limit grooves, and the inner walls of the two limit grooves are slidably connected with two limit blocks. The upper surfaces of the two limit blocks are respectively fixedly connected to the lower surface of the base frame.

[0012] In some embodiments, two protective covers are provided inside each of the two base frames, and roller sets are provided on the inner walls of the two protective covers. The same driving device is provided on the opposite sides of the two protective covers, and the two roller sets are connected by the driving device.

[0013] In some embodiments, the protective cover is provided with a transmission component inside, and the driving device includes a drive motor and a reducer.

[0014] Compared with existing technologies, the significant advantages of this invention are:

[0015] This invention uses a motor to drive a rotating plate, which in turn drives two drive rods. The rotation of these two drive rods pulls two fixed shafts to move in opposite directions, thereby enabling the two fixed shafts to move two base frames in opposite directions. This allows for adjustment of the distance between the two roller sets, accommodating workpieces of different specifications. Furthermore, the synchronous movement of the two roller sets in opposite directions enables centering and clamping of the workpiece, improving the clamping effect while avoiding the problem of uneven weld quality caused by unilateral pressure leading to eccentric rotation of the workpiece. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural schematic diagram provided in one embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the bottom structure of the roller frame device provided in one embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the roller frame movement limiting structure provided in one embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base; 2. Frame; 3. Base frame; 4. Protective cover; 5. Roller assembly; 6. Drive unit; 7. Housing; 8. Fixing plate; 9. Rotating plate; 10. Drive rod; 11. Fixed shaft; 12. Motor; 13. Limiting groove; 14. Limiting block. Detailed Implementation

[0022] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0023] This utility model provides an improved automatic seam welding machine roller frame device. The technical solution of this utility model is as follows:

[0024] like Figures 1-3 As shown, an automatic seam welding machine roller frame device includes two bases 1, and two frames 2 are fixedly connected to the upper surfaces of the two bases 1. The two bases 1 and the two frames 2 can support the roller assembly 5. The support of the bases 1 on the frames 2 can provide the frames 2 with a ground clearance, thereby providing clearance space for the rotating plate 9 to rotate. The device also includes:

[0025] A fixed plate 8 is rotatably connected to a rotating plate 9 on its lower surface. Both ends of the rotating plate 9 are fixedly connected to rotating shafts. The surfaces of the two rotating shafts are rotatably connected to drive rods 10. The two drive rods 10 can drive the two fixed shafts 11 to move the two base frames 3. The ends of the two drive rods 10 away from the rotating plate 9 are rotatably connected to the fixed shafts 11.

[0026] The base frame 3 has two base frames. The lower surfaces of the two base frames 3 are fixedly connected to the surfaces of the corresponding two fixed shafts 11. Both base frames 3 are slidably mounted on the upper surface of the frame 2. The movement of the two fixed shafts 11 can drive the movement of the two base frames 3. The roller group 5 is located inside the base frame 3.

[0027] like Figure 3 As shown, in one embodiment, a motor 12 is fixedly installed on the upper surface of the fixing plate 8. The output end of the motor 12 passes through the lower surface of the rotating plate 9 and is fixedly connected to the upper surface of the rotating plate 9. A housing 7 is fixedly connected to the upper surface of the fixing plate 8. The motor 12 is disposed inside the housing 7. The housing 7 can protect the motor 12.

[0028] The upper surfaces of both frames 2 are provided with limit grooves 13, and the inner walls of the two limit grooves 13 are slidably connected with two limit blocks 14. The upper surfaces of the two limit blocks 14 are fixedly connected to the lower surfaces of the base frame 3. The stability of the movement of the base frame 3 can be improved by setting the limit grooves 13 and limit blocks 14.

[0029] like Figure 1 and Figure 3As shown, in one embodiment, two protective covers 4 are provided inside each of the two base frames 3, and roller sets 5 are provided on the inner walls of the two protective covers 4. The same driving device 6 is provided on the opposite sides of the two protective covers 4, and the two roller sets 5 are connected by the driving device 6.

[0030] The protective cover 4 has a transmission component inside, which includes gears and chains. The drive device 6 includes a drive motor and a reducer. The drive device 6 is a coupling consisting of a motor 12 and a reducer, which drives the roller assembly 5. The protective cover 4 and roller assembly 5 inside the base frame 3 are existing technologies and will not be described in detail here.

[0031] The specific working method is as follows: During use, the workpiece is supported by placing it inside the two roller sets 5 on the frame 2. The drive device 6 drives the roller sets 5 to rotate, thereby moving the workpiece for welding. When it is necessary to adjust the distance between the roller sets 5, the motor 12 drives the rotating plate 9 to rotate. The rotation of the rotating plate 9 drives the two drive rods 10 to rotate. The rotation of the two drive rods 10 pulls the two fixed shafts 11 to move in opposite directions, thereby enabling the two fixed shafts 11 to drive the two base frames 3 to move in opposite directions, thus realizing the adjustment of the distance between the two roller sets 5. This can accommodate workpieces of different specifications. Furthermore, the synchronous movement of the two roller sets 5 in opposite directions can achieve centering and clamping of the workpiece. While improving the clamping effect, it avoids the problem of uneven weld quality caused by unilateral pressure leading to eccentric rotation of the workpiece.

[0032] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. An automatic seam welder roller rack device, comprising two bases (1), the upper surfaces of the two bases (1) are fixedly connected with two racks (2), characterized in that: Also include; The lower surface of the fixed plate (8) is rotatably connected with a rotating plate (9), both ends of the rotating plate (9) are fixedly connected with rotating shafts, the surfaces of the two rotating shafts are rotatably connected with driving rods (10), and the ends, away from the rotating plate (9), of the two driving rods (10) are rotatably connected with fixed shafts (11); The lower surfaces of two base frames (3) are fixedly connected with the surfaces of the corresponding two fixed shafts (11), and the two base frames (3) are slidably arranged on the upper surfaces of the racks (2).

2. An automatic seam welder roller carriage apparatus as defined in claim 1, wherein: The upper surface of the fixed plate (8) is fixedly connected with a shell (7), and the motor (12) is arranged in the shell (7).

3. An automatic seam welder roller carriage apparatus as defined in claim 1, wherein: The upper surfaces of the two racks (2) are provided with limiting grooves (13), the inner walls of the two limiting grooves (13) are slidably connected with two limiting blocks (14), and the upper surfaces of the two limiting blocks (14) are fixedly connected with the lower surfaces of the base frames (3).

4. An automatic seam welder roller carriage apparatus as defined in claim 3, wherein: The interiors of the two base frames (3) are provided with two protective covers (4), the inner walls of the two protective covers (4) are provided with roller groups (5), the opposite surfaces of the two protective covers (4) are provided with the same driving device (6), and the two roller groups (5) are drivingly connected through the driving device (6).

5. An automatic seam welder roller carriage apparatus as defined in claim 4, wherein: The interior of the protective cover (4) is provided with a transmission component, and the driving device (6) comprises a driving machine and a speed reducer.

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