Pipe orifice smoothing device for welded pipe machining

Abstract

The utility model discloses a pipe orifice grinding device for welded pipe machining, and belongs to the field of welded pipe grinding, the grinding device comprises a protective cover, a rotating shaft axially moving on the protective cover, a grinding disc arranged in the protective cover and connected with the rotating shaft, and a driving part used for driving the rotating shaft to rotate; an adjusting mechanism is arranged on the protective cover and comprises a fixing ring fixedly arranged on the driving piece in a sleeving mode, a threaded sleeve fixedly connected to the fixing ring and a driving lead screw inserted into the threaded sleeve and rotationally connected with the protective cover. By arranging the adjusting mechanism, the axial feeding amount of the grinding disc can be accurately controlled, the phenomenon that the grinding disc is damaged due to the fact that the feeding amount is too large is avoided, and the grinding efficiency and the product quality are improved. During adjustment, the threaded sleeve, the driving piece on the fixing ring, the rotating shaft and the grinding disc can be driven to axially move at the pipe opening of the welded pipe only by rotating the driving lead screw, so that the feeding amount of the grinding disc is accurately controlled, and the operation is simple.

Description

Technical Field

[0001] This application relates to the field of welded pipe grinding technology, specifically a pipe end grinding device for welded pipe processing. Background Technology

[0002] Welded steel pipe, or simply welded pipe, is a type of steel pipe made by rolling and welding steel plates or strips. During the processing of welded pipes, once the required length is reached, it is typically cut using oxygen cutting. However, after oxygen cutting, the pipe ends often exhibit unevenness, which not only affects the aesthetics of the welded pipe but may also adversely impact its subsequent use. Therefore, grinding the pipe ends smooth is an indispensable step in the processing of welded pipes.

[0003] Currently, some pipe end grinding devices for welded pipe processing are available on the market, such as the handheld grinding device disclosed in Chinese Utility Model Patent No. CN217122694U. This device mainly consists of a drive unit, a protective cover, and a grinding disc. The port of the protective cover is equipped with a clamping mechanism for the welded pipe. This clamping mechanism can be adjusted according to the diameter of the welded pipe to ensure that the grinding disc and the port of the welded pipe are kept on the same axis. In use, the operator only needs to keep one end of the welded pipe suspended in the air to place the device over the port of the welded pipe and use the rotating grinding disc to grind the port smooth. The device is compact in design, making it easy to carry and operate.

[0004] However, in actual use, this pipe-end grinding device changes the feed rate of the grinding disc by moving the protective cover on the welded pipe. This method not only alters the stability of the protective cover, posing a safety hazard, but also makes it impossible to precisely control the feed rate of the grinding disc. When the feed rate is too high, it can easily damage the grinding disc, thus affecting the grinding effect and the service life of the device.

[0005] Therefore, this application provides a pipe end grinding device for welded pipe processing to solve the above-mentioned problems. Utility Model Content

[0006] This application provides a pipe end grinding device for welded pipe processing, aiming to solve the problems mentioned in the background art, which involve changing the feed rate of the grinding disc by moving the position of the protective cover on the welded pipe during use. This method not only changes the stability of the protective cover, posing a safety hazard, but also makes it impossible to accurately control the feed rate of the grinding disc.

[0007] To achieve the above objectives, this application provides the following technical solution: a pipe end grinding device for welded pipe processing, comprising a protective cover, a rotating shaft that moves axially on the protective cover, a grinding disc disposed inside the protective cover and connected to the rotating shaft, and a driving component for driving the rotating shaft to rotate; further comprising a clamping mechanism for fixing the protective cover to the welded pipe.

[0008] To facilitate control of the axial feed of the grinding disc, an adjustment mechanism is provided on the protective cover. This mechanism includes a fixing ring fixedly mounted on the drive component, a threaded sleeve fixedly connected to the fixing ring, and a drive screw inserted into the threaded sleeve and rotatably connected to the protective cover. When the feed of the grinding disc needs adjustment, the drive screw is rotated to adjust the feed. Rotating the drive screw clockwise moves the grinding disc away from the welded pipe, decreasing the feed; rotating the drive screw counterclockwise moves the grinding disc closer to the welded pipe, increasing the feed. This adjustment continues until the welded pipe opening is ground flat.

[0009] Preferably, to facilitate the rotation of the drive screw, a knob is fixedly connected to the end of the drive screw away from the protective cover. The knob allows for convenient control of the drive screw's rotation, facilitating the movement of the drive component closer to or away from the protective cover.

[0010] Preferably, to ensure the stability of the axial movement of the drive component, the adjustment mechanism further includes sleeves symmetrically fixed on both sides of the bottom of the fixed ring, and guide rods that move axially within the sleeves and are fixedly connected to the protective cover. The cooperation between the guide rods and the sleeves guides the drive component during axial movement.

[0011] Preferably, to prevent the sleeve from getting stuck on the guide rod: a baffle is fixedly connected to the end of the guide rod away from the protective cover, and a spring is fitted on the guide rod between the sleeve and the baffle. The spring provides a force for the sleeve to move closer to the protective cover, thus preventing the sleeve from getting stuck on the guide rod.

[0012] Preferably, to facilitate the replacement of the grinding disc: a grinding disc mounting plate is fixedly connected to the end of the rotating shaft away from the driving component, and the grinding disc is fixedly mounted on the grinding disc mounting plate by bolts. Fixing the grinding disc to the grinding disc mounting plate by bolts facilitates both installation and removal / replacement of the grinding disc.

[0013] Preferably, to facilitate observation of the grinding disc's feed rate: a sleeve plate is fixedly connected to the fixing ring, and a scale plate fixedly connected to the protective cover is slidably inserted into the sleeve plate. The cooperation between the sleeve plate and the scale plate allows for easy observation of the grinding disc's feed increments, improving the efficiency of grinding the welded pipe end.

[0014] This application, by setting an adjustment mechanism, can precisely control the axial feed of the grinding disc, avoiding damage to the grinding disc due to excessive feed, and improving grinding efficiency and product quality. During adjustment, simply rotating the drive screw drives the drive components on the threaded sleeve and fixed ring, the rotating shaft, and the grinding disc to move axially at the welded pipe opening, thereby precisely controlling the feed of the grinding disc. Operation is simple.

[0015] This application allows for easy observation of the scale increments of the grinding disc during each feed by using a sleeve plate and a scale plate, thereby improving the efficiency of grinding welded pipe ends. Attached Figure Description

[0016] Figure 1 A schematic diagram of a pipe end grinding device for welded pipe processing;

[0017] Figure 2 This is a schematic diagram of the adjustment mechanism;

[0018] Figure 3 This is a schematic diagram of the internal structure of the protective shield.

[0019] In the picture:

[0020] 1. Protective cover; 2. Rotating shaft; 3. Grinding disc; 31. Grinding disc mounting plate; 4. Driving component; 5. Clamping mechanism; 6. Adjusting mechanism; 61. Fixing ring; 62. Threaded sleeve; 63. Driving screw; 631. Knob; 64. Sleeve; 65. Guide rod; 651. Baffle; 652. Spring; 7. Sleeve plate; 71. Scale plate. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. Example

[0022] This embodiment provides a pipe end grinding device for welded pipe processing, such as... Figure 1-3 As shown, the grinding device includes a protective cover 1, a rotating shaft 2 that moves axially on the protective cover 1, a grinding disc 3 disposed inside the protective cover 1 and connected to the rotating shaft 2, and a driving component 4 for driving the rotating shaft 2 to rotate. The protective cover 1 is made of transparent material, which facilitates real-time observation of the grinding condition of the grinding disc 3 on the welded pipe opening. The driving component 4 is a drive motor, and the output end of the drive motor is fixedly connected to the rotating shaft 2.

[0023] It also includes a clamping mechanism 5 for fixing the protective cover 1 to the welded pipe; wherein the clamping mechanism 5 is made using the clamping mechanism disclosed in the prior art patent.

[0024] To facilitate control of the axial feed of the grinding disc 3, an adjustment mechanism 6 is provided on the protective cover 1. The adjustment mechanism 6 includes a fixing ring 61 fixedly mounted on the drive component 4, a threaded sleeve 62 fixedly connected to the fixing ring 61, and a drive screw 63 inserted into the threaded sleeve 62 and rotatably connected to the protective cover 1. By setting the adjustment mechanism 6, the axial feed of the grinding disc 3 can be precisely controlled, avoiding damage to the grinding disc 3 due to excessive feed, thus improving grinding efficiency and product quality. During adjustment, simply rotating the drive screw 63 drives the drive component 4, rotating shaft 2, and grinding disc 3 on the threaded sleeve 62 and fixing ring 61 to move axially at the welded pipe opening, thereby precisely controlling the feed of the grinding disc 3. The operation is simple. In use, first, the protective cover 1 is fixed to the welded pipe to be ground using the clamping mechanism 5. Then, the drive component 4 is started, causing the rotating shaft 2 and grinding disc 3 to begin rotating. Next, the feed rate of the grinding disc 3 is adjusted by rotating the drive screw 63 according to actual needs. When the drive screw 63 is rotated clockwise, the grinding disc 3 moves away from the welded pipe, reducing the feed rate; when the drive screw 63 is rotated counterclockwise, the grinding disc 3 moves closer to the welded pipe, increasing the feed rate. By continuously adjusting the feed rate, the welded pipe opening is ground flat.

[0025] To facilitate the rotation of the drive screw 63, a knob 631 is fixedly connected to the end of the drive screw 63 away from the protective cover 1. The knob 631 allows for easy control of the rotation of the drive screw 63, making it convenient to move the drive component 4 closer to or away from the protective cover 1.

[0026] To ensure the stability of the axial movement of the drive component 4, the adjusting mechanism 6 also includes sleeves 64 symmetrically fixed on both sides of the bottom of the fixed ring 61, and guide rods 65 that move axially within the sleeves 64 and are fixedly connected to the protective cover 1. The cooperation between the guide rods 65 and the sleeves 64 guides the drive component 4 during axial movement. Simultaneously, the cooperation between the two guide rods 65 and the drive screw 63 provides a triangular support for the drive component 4.

[0027] To prevent the sleeve 64 from getting stuck on the guide rod 65, a baffle 651 is fixedly connected to the end of the guide rod 65 away from the protective cover 1, and a spring 652 is fitted on the guide rod 65 between the sleeve 64 and the baffle 651. The spring 652 enables the sleeve 64 to have a force that moves it closer to the protective cover 1, thus preventing the sleeve 64 from getting stuck on the guide rod 65.

[0028] To facilitate the replacement of the grinding disc 3: a grinding disc mounting plate 31 is fixedly connected to the end of the rotating shaft 2 away from the drive component 4, and the grinding disc 3 is fixedly mounted on the grinding disc mounting plate 31 by bolts. The grinding disc 3 is fixedly mounted on the grinding disc mounting plate 31 by bolts, which facilitates both the installation and disassembly and replacement of the grinding disc 3. Example

[0029] Unlike Embodiment 1, to facilitate observation of the feed amount of the grinding disc 3, a sleeve plate 7 is fixedly connected to the fixing ring 61, and a scale plate 71, which is fixedly connected to the protective cover 1, is slidably inserted into the sleeve plate 7. The cooperation between the sleeve plate 7 and the scale plate 71 makes it easy to observe the scale of each feed of the grinding disc 3, thereby improving the efficiency of grinding the welded pipe end.

[0030] It should be noted that many of the standard parts used in this invention are available on the market, while non-standard parts can be specially customized. The connection methods used in this invention, such as bolt connection and threaded connection, are also very common in the mechanical field, and the inventor will not elaborate on them here.

[0031] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A pipe end grinding device for welded pipe processing, comprising a protective cover (1), a rotating shaft (2) that moves axially on the protective cover (1), a grinding disc (3) disposed inside the protective cover (1) and connected to the rotating shaft (2), and a driving component (4) for driving the rotating shaft (2) to rotate. It also includes a clamping mechanism (5) for fixing the protective cover (1) to the welded pipe; Its features are: The protective cover (1) is provided with an adjustment mechanism (6), which includes a fixing ring (61) fixedly mounted on the drive member (4), a threaded sleeve (62) fixedly connected to the fixing ring (61), and a drive screw (63) inserted into the threaded sleeve (62) and rotatably connected to the protective cover (1).

2. The pipe end grinding device for welded pipe processing according to claim 1, characterized in that: A knob (631) is fixedly connected to the end of the drive screw (63) away from the protective cover (1).

3. The pipe end grinding device for welded pipe processing according to claim 1, characterized in that: The adjustment mechanism (6) further includes sleeves (64) symmetrically fixed on both sides of the bottom of the fixed ring (61) and guide rods (65) that move axially within the sleeves (64) and are fixedly connected to the protective cover (1).

4. The pipe end grinding device for welded pipe processing according to claim 3, characterized in that: A baffle (651) is fixedly connected to one end of the guide rod (65) away from the protective cover (1), and a spring (652) is fitted on the guide rod (65) between the sleeve (64) and the baffle (651).

5. The pipe end grinding device for welded pipe processing according to claim 1, characterized in that: The end of the rotating shaft (2) away from the driving component (4) is fixedly connected to a grinding disc mounting plate (31), and the grinding disc (3) is fixedly mounted on the grinding disc mounting plate (31) by bolts.

6. The pipe end grinding device for welded pipe processing according to claim 1, characterized in that: A sleeve plate (7) is fixedly connected to the fixed ring (61), and a scale plate (71) that is fixedly connected to the protective cover (1) is slidably inserted into the sleeve plate (7).

Images