Rust removal device for welded pipe machining

Abstract

The utility model discloses a derusting device for welded pipe processing, which comprises a bottom plate, a vertical plate is fixed on one side of the upper surface of the bottom plate, a round hole is formed in the top end of the vertical plate, a rotating cylinder is rotatably connected in the round hole through a bearing, a clamping component is arranged in and outside the rotating cylinder, a top plate is fixed on the top end of the vertical plate, and the top plate is fixed on the top plate. A motor for driving the rotating cylinder to rotate is mounted on the upper surface of the top plate. According to the welding pipe polishing device, the bottom plate, the vertical plate, the rotating cylinder, the clamping assembly, the motor, the portal frame, the electric telescopic rod, the U-shaped frame and the polishing assembly are arranged, a welding pipe is fixed through the clamping assembly after being inserted into the rotating cylinder, then the polishing assembly is driven by the electric telescopic rod to descend, abrasive paper makes contact with the welding position of the welding pipe, and then the rotating cylinder is driven by the motor to rotate; and the clamping assembly can quickly fix the welded pipes with different diameters, so that the universality of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of welded pipe processing technology, and in particular to a rust removal device for welded pipe processing. Background Technology

[0002] Stainless steel welded pipes are pipes made from stainless steel plates or strips through rolling and welding. They are widely used in petroleum, chemical, food, and medical fields. The manufacturing process mainly includes forming, welding, heat treatment, straightening, and cutting steps to ensure the dimensional accuracy and mechanical properties of the pipes. Depending on the welding process, they can be divided into argon arc welding (TIG), high-frequency welding (HFW), and laser welding. TIG welded pipes have smooth internal and external welds, making them suitable for demanding applications; HFW welded pipes have high production efficiency and lower cost.

[0003] Stainless steel welded pipes are prone to rust at the weld site after welding, thus requiring rust removal equipment. Currently, the most common rust removal method is grinding the weld site. However, existing grinding and rust removal equipment generally uses a grinding wheel, which, due to its flat surface, has a small contact area with the welded pipe surface, resulting in low grinding efficiency. Furthermore, existing rust removal equipment is not suitable for fixing welded pipes of different diameters, exhibiting low versatility. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a rust removal device for welded pipe processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rust removal device for welded pipe processing, comprising a base plate, a vertical plate fixed to one side of the upper surface of the base plate, a circular hole at the top of the vertical plate, and a rotating cylinder rotatably connected inside the circular hole via a bearing, a clamping assembly provided inside and outside the rotating cylinder, a top plate fixed to the top of the vertical plate, and a motor for driving the rotating cylinder to rotate installed on the upper surface of the top plate, a gantry frame fixed to the other side of the upper surface of the base plate, an electric telescopic rod fixed to the top of the gantry frame, a U-shaped frame fixed to the bottom telescopic end of the electric telescopic rod, and a grinding assembly installed inside the U-shaped frame.

[0006] Furthermore, the clamping assembly includes two symmetrical arc-shaped clamping plates located inside the rotating cylinder and two outer side plates fixed to the outer side wall of the rotating cylinder. The rotating cylinder has a strip-shaped opening on the side near the two outer side plates. A bidirectional lead screw is rotatably connected between the two outer side plates through a bearing. Two symmetrical sliding rods are rotatably connected to the surface of the bidirectional lead screw through threads. The two sliding rods pass through the strip-shaped opening and are fixedly connected to the two arc-shaped clamping plates respectively, and the two sliding rods are slidably connected to the strip-shaped opening.

[0007] Furthermore, rubber pads are fixedly connected to adjacent sides of both of the arc-shaped clamps.

[0008] Furthermore, an external gear ring is fixed to the outer wall of the rotating cylinder, and a drive bevel gear is fixedly connected to the motor output shaft, the drive bevel gear meshing with the external gear ring.

[0009] Furthermore, the polishing assembly includes a square guide rod and sandpaper fixed inside the U-shaped frame. Two sliding plates are slidably connected to the surface of the guide rod. Two symmetrical U-shaped plates are fixedly connected to the bottom ends of the two sliding plates. The bottom walls of the two U-shaped plates are both connected to a screw through a thread. The top end of the screw is rotatably connected to a pressing plate through a bearing. The two ends of the sandpaper are inserted into the two U-shaped plates and located on the upper surface of the pressing plate.

[0010] Furthermore, the two sliding plates on opposite sides are both fixedly connected to the inner wall of the U-shaped frame by springs.

[0011] The beneficial effects of this utility model are:

[0012] In use, this utility model discloses a rust removal device for welded pipe processing, comprising a base plate, a vertical plate, a rotating cylinder, a clamping assembly, a motor, a gantry frame, an electric telescopic rod, a U-shaped frame, and a grinding assembly. After the welded pipe is inserted into the rotating cylinder, it is fixed by the clamping assembly. The electric telescopic rod then lowers the grinding assembly, bringing the sandpaper into contact with the welding position of the pipe. Subsequently, the motor drives the rotating cylinder to rotate, thereby using the sandpaper to grind and remove rust from the welding position of the pipe. The clamping assembly can quickly fix welded pipes of different diameters, improving the device's versatility. Furthermore, the ends of the sandpaper in the grinding assembly can move with the U-shaped plate, increasing the contact area between the sandpaper and the welded pipe surface, thus improving the efficiency of rust removal. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 : Overall sectional view of this utility model;

[0015] Figure 2 Side sectional view of the rotating cylinder of this utility model;

[0016] Figure 3 : A perspective view of the U-shaped frame and grinding components of this utility model.

[0017] The attached figures are labeled as follows:

[0018] 1. Base plate; 2. Vertical plate; 3. Rotating cylinder; 31. Strip-shaped opening; 32. External gear ring; 33. Top plate; 4. Clamping assembly; 41. Outer side plate; 42. Arc-shaped clamping plate; 43. Two-way lead screw; 44. Slide rod; 5. Motor; 51. Drive bevel gear; 6. Gantry frame; 7. Electric telescopic rod; 8. U-shaped frame; 9. Grinding assembly; 91. Guide rod; 92. Slide plate; 93. Spring; 94. U-shaped plate; 95. Extrusion plate; 96. Screw; 97. Sandpaper. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-3 As shown, a rust removal device for welded pipe processing is disclosed, comprising a base plate 1, a vertical plate 2 fixed to one side of the upper surface of the base plate 1, a circular hole at the top of the vertical plate 2, and a rotating cylinder 3 rotatably connected to the inside of the circular hole via a bearing, a clamping assembly 4 provided inside and outside the rotating cylinder 3, a top plate 33 fixed to the top of the vertical plate 2, and a motor 5 for driving the rotating cylinder 3 to rotate mounted on the upper surface of the top plate 33, a gantry frame 6 fixed to the other side of the upper surface of the base plate 1, an electric telescopic rod 7 fixed to the top of the gantry frame 6, a U-shaped frame 8 fixed to the bottom telescopic end of the electric telescopic rod 7, and a grinding assembly 9 installed inside the U-shaped frame 8.

[0021] The clamping assembly 4 includes two symmetrical arc-shaped clamping plates 42 located inside the rotating cylinder 3 and two outer side plates 41 fixed to the outer side wall of the rotating cylinder 3. A strip-shaped opening 31 is provided on the side of the rotating cylinder 3 near the two outer side plates 41. A bidirectional lead screw 43 is rotatably connected between the two outer side plates 41 through a bearing. Two symmetrical sliding rods 44 are rotatably connected to the surface of the bidirectional lead screw 43 through a thread. The two sliding rods 44 pass through the strip-shaped opening 31 and are fixedly connected to the two arc-shaped clamping plates 42 respectively, and the two sliding rods 44 are slidably connected to the strip-shaped opening 31.

[0022] In this embodiment, a nut is fixed to one end of the bidirectional lead screw 43, making it easy to rotate the bidirectional lead screw 43 by means of a handle. When using the clamping assembly 4 to clamp and fix the welded pipe, the welded pipe is inserted into the rotating cylinder 3, and the welded pipe is positioned between the two arc-shaped clamping plates 42. At this time, the bidirectional lead screw 43 is rotated, which drives the two sliding rods 44 to move along the strip-shaped opening 31, thereby causing the two arc-shaped clamping plates 42 to move closer to each other, and the welded pipe is clamped and fixed by the two arc-shaped clamping plates 42.

[0023] Rubber pads are fixedly connected to the adjacent sides of the two arc-shaped clamps 42.

[0024] By setting rubber pads, the friction between the arc-shaped clamp 42 and the surface of the welded pipe can be increased, thereby increasing the firmness of the welded pipe fixation.

[0025] An external gear ring 32 is fixed to the outer wall of the rotating cylinder 3, and a drive bevel gear 51 is fixedly connected to the output shaft of the motor 5. The drive bevel gear 51 meshes with the external gear ring 32.

[0026] When the motor 5 is started, and under the transmission action of the active bevel gear 51 and the external gear ring 32, the motor 5 can drive the rotating cylinder 3 to rotate, thereby driving the welded pipe fixed inside the rotating cylinder 3 to rotate.

[0027] The sanding assembly 9 includes a square guide rod 91 and sandpaper 97 fixed inside the U-shaped frame 8. Two sliding plates 92 are slidably connected to the surface of the guide rod 91. Two symmetrical U-shaped plates 94 are fixedly connected to the bottom ends of the two sliding plates 92. The bottom walls of the two U-shaped plates 94 are penetrated and connected to screws 96 by threads. The top ends of the screws 96 are connected to extrusion plates 95 by bearings. The two ends of the sandpaper 97 are inserted into the two U-shaped plates 94 and are located on the upper surface of the extrusion plates 95.

[0028] In this embodiment, the sandpaper 97 is located at the bottom, and a handle is fixed at the bottom of the screw 96. When installing the sandpaper 97, insert both ends of the sandpaper 97 into the two U-shaped plates 94 respectively, so that the sandpaper 97 is located on the upper surface of the extrusion plate 95. Then, rotate the screw 96 by the handle, and use the screw 96 to push the extrusion plate 95 to move, and use the extrusion plate 95 to press and fix the sandpaper 97.

[0029] When the electric telescopic rod 7 is activated and the U-shaped frame 8 is lowered, the lower surface of the sandpaper 97 can be made to fit with the surface of the welded pipe. As the contact area between the sandpaper 97 and the surface of the welded pipe increases, the sandpaper 97 will pull the two U-shaped plates 94 and the sliding plate 92 closer together, and the sliding plate 92 will slide along the surface of the guide rod 91.

[0030] Both sliding plates 92, on their opposite sides, are fixedly connected to the inner wall of the U-shaped frame 8 by springs 93. By setting the springs 93 to provide a counter-tension to the sliding plates 92, it can be ensured that the sandpaper 97 is taut when it comes into contact with the surface of the welded pipe.

[0031] Working principle: Insert the welded pipe to be derusted into the rotating cylinder 3. Then, rotate the two-way screw 43 to drive the two arc-shaped clamps 42 to clamp and fix the welded pipe. Then, start the electric telescopic rod 7 to drive the U-shaped frame 8 to descend, so that the lower surface of the sandpaper 97 gradually contacts the surface of the welded position of the welded pipe. Then, start the motor 5 to drive the rotating cylinder 3 to rotate, thereby driving the welded pipe to rotate. The sandpaper 97 then grinds and removes rust from the surface of the welded position of the welded pipe.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A rust removal device for welded pipe processing, comprising a base plate (1), characterized in that: A vertical plate (2) is fixed on one side of the upper surface of the base plate (1). A round hole is opened at the top of the vertical plate (2), and a rotating cylinder (3) is rotatably connected inside the round hole through a bearing. A clamping assembly (4) is provided inside and outside the rotating cylinder (3). A top plate (33) is fixed at the top of the vertical plate (2), and a motor (5) for driving the rotating cylinder (3) to rotate is installed on the upper surface of the top plate (33). A gantry frame (6) is fixed on the other side of the upper surface of the base plate (1). An electric telescopic rod (7) is fixed at the top of the gantry frame (6). A U-shaped frame (8) is fixed at the bottom telescopic end of the electric telescopic rod (7). A grinding assembly (9) is installed inside the U-shaped frame (8). The clamping assembly (4) includes two symmetrical arc-shaped clamping plates (42) located inside the rotating cylinder (3) and two outer side plates (41) fixed to the outer side wall of the rotating cylinder (3). The rotating cylinder (3) has a strip-shaped opening (31) on the side near the two outer side plates (41). A bidirectional lead screw (43) is rotatably connected between the two outer side plates (41) through a bearing. Two symmetrical sliding rods (44) are rotatably connected to the surface of the bidirectional lead screw (43) through a thread. The two sliding rods (44) pass through the strip-shaped opening (31) and are fixedly connected to the two arc-shaped clamping plates (42) respectively. The two sliding rods (44) are slidably connected to the strip-shaped opening (31). The polishing assembly (9) includes a square guide rod (91) and sandpaper (97) fixed inside the U-shaped frame (8). Two sliding plates (92) are slidably connected to the surface of the guide rod (91). Two symmetrical U-shaped plates (94) are fixedly connected to the bottom ends of the two sliding plates (92). The bottom walls of the two U-shaped plates (94) are penetrated and connected to a screw (96) by a thread. The top end of the screw (96) is connected to a pressing plate (95) by a bearing. The two ends of the sandpaper (97) are inserted into the two U-shaped plates (94) and located on the upper surface of the pressing plate (95).

2. The rust removal device for welded pipe processing according to claim 1, characterized in that: Rubber pads are fixedly connected to the adjacent sides of the two arc-shaped clamps (42).

3. The rust removal device for welded pipe processing according to claim 1, characterized in that: An external gear ring (32) is fixed to the outer wall of the rotating cylinder (3), and an active bevel gear (51) is fixedly connected to the output shaft of the motor (5). The active bevel gear (51) meshes with the external gear ring (32).

4. The rust removal device for welded pipe processing according to claim 1, characterized in that: Both of the two sliding plates (92) are fixedly connected to the inner wall of the U-shaped frame (8) with springs (93) on the side that is far apart from each other.

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