Polishing device for hot expanding machining of steel pipe

Abstract

The utility model relates to the technical field of polishing devices, and discloses a polishing device for steel pipe thermal expansion processing, which comprises a base, four side plates are fixedly connected to the top of the base, the four side plates are arranged in pairs, a second limiting plate is fixedly connected between one group of side plates, and a third limiting plate is fixedly connected between the other group of side plates. The end of the side, away from the second limiting plate, of the first limiting plate is rotationally connected with a second rotating shaft, the other end of the first limiting plate is fixedly connected with a plurality of bridging plates, the surface of the second rotating shaft is sleeved with a connecting piece, the bottom of the connecting piece is provided with a rotating mechanism used for rotating the first limiting plate, and two first rollers are rotationally connected between the first limiting plate and the second limiting plate. And rotating mechanisms used for rotating the first rollers are arranged on one sides of the two first rollers, a supporting frame is fixedly connected to the top of the base, and a grinding mechanism used for grinding the steel pipe is arranged at the bottom of the supporting frame. Due to the arrangement of the limiting plate, blanking of steel pipes can be completed without the help of external machinery.

Description

Technical Field

[0001] This utility model relates to the field of grinding device technology, and in particular to a grinding device for hot expansion processing of steel pipes. Background Technology

[0002] The grinding device for hot-expanded steel pipes is used to grind the surface of steel pipes after hot expansion. Hot expansion is a process that increases the diameter and thins the wall of a steel pipe through heating and mechanical action, and is often used to manufacture large-diameter, thin-walled steel pipes. During this process, defects such as oxide layers and burrs may be generated on the surface of the steel pipe, affecting its appearance and subsequent performance. The main function of the grinding device is to remove oxide layers, burrs, and other uneven areas from the surface of the steel pipe through grinding, improving surface smoothness. The ground surface also helps the adhesion of subsequent coatings, welding, and other processes. The grinding device typically consists of a grinding machine, sanding belt, and abrasive materials. The grinding force, speed, and angle can be adjusted as needed to achieve the best processing effect.

[0003] Most existing steel pipe hot expansion grinding equipment requires the assistance of external machinery to complete the cutting of steel pipes. However, the external machinery requires professional technicians to operate, which increases the overall cost. Therefore, this problem needs to be solved. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a grinding device for hot expansion processing of steel pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A grinding device for hot expansion processing of steel pipes includes a base. Four side plates are fixedly connected to the top of the base, arranged in pairs. A second limiting plate is fixedly connected between one pair of side plates, and a first limiting plate is rotatably connected between the other pair. Multiple second rollers are rotatably connected to the symmetrical sides of the first and second limiting plates. A second rotating shaft is rotatably connected to the end of the first limiting plate away from the second limiting plate. Multiple cantilever plates are fixedly connected to the other end of the first limiting plate. A connecting member is sleeved on the surface of the second rotating shaft. A rotating mechanism for rotating the first limiting plate is provided at the bottom of the connecting member. Two first rollers are rotatably connected between the first and second limiting plates. A rotating mechanism for rotating the first rollers is provided on one side of each of the two first rollers. A support frame is fixedly connected to the top of the base, and a grinding mechanism for grinding the steel pipe is provided at the bottom of the support frame. By setting the limiting plates, the steel pipe can be cut without the aid of external machinery.

[0007] As a further embodiment of this utility model, the rotating mechanism includes two first hydraulic rods, both of which are fixedly connected to the bottom of the connecting member, and the bottoms of both first hydraulic rods are rotatably connected to the top of the base.

[0008] As a further embodiment of this utility model, the rotating mechanism includes a U-shaped plate, which is fixedly connected to the top of the base. The first roller is rotatably connected to the top of the U-shaped plate. A first synchronous wheel is fixedly connected to one side of the first roller. A first motor is fixedly connected to one side of the base. The output shaft of the first motor is fixedly connected to a first rotating shaft. The first rotating shaft is rotatably connected inside the base. A second synchronous wheel is sleeved on the surface of the first rotating shaft near the first synchronous wheel. The same synchronous belt is sleeved on the surfaces of the first and second synchronous wheels. By setting the synchronous belt, the first roller can be rotated.

[0009] As a further embodiment of this utility model, the grinding mechanism includes two second hydraulic rods, both of which are fixedly connected to the top of the support frame. The bottom of the two second hydraulic rods is fixedly connected to the same mounting box. A second motor is fixedly connected to one side of the mounting box, and a lead screw is fixedly connected to the output shaft of the second motor. A slider is sleeved on the surface of the lead screw, and the slider and the lead screw are configured to cooperate with each other. A third motor is fixedly connected to one side of the slider, and a grinding disc is fixedly connected to the output shaft of the third motor. By setting the grinding disc, the surface of the steel pipe can be ground.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model adopts a technical solution of rotating a limiting plate by using hydraulic rods, which allows for the unloading of steel pipes without the aid of external machinery. This effectively solves the problem that external machinery requires professional technicians to operate, thus increasing the overall cost. Connectors are installed on the top of the two first hydraulic rods and are connected to the first limiting plate. When the first hydraulic rods are activated, they can drive the first limiting plate to rotate. A cantilever plate is installed on one side of the first limiting plate. As the first limiting plate continues to rotate, the cantilever plate will contact the steel pipe, thereby driving the steel pipe to rotate synchronously. When the first limiting plate rotates to a certain angle, the steel pipe will slide off the surface of the first limiting plate, thus achieving the purpose of unloading. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a grinding device for hot expansion processing of steel pipes proposed in this utility model.

[0013] Figure 2 This is a schematic diagram of the rotating mechanism of a grinding device for hot expansion processing of steel pipes proposed in this utility model.

[0014] Figure 3 for Figure 2 Enlarged structural diagram at point A in the diagram;

[0015] Figure 4 This is a partial structural schematic diagram of a grinding device for hot expansion processing of steel pipes proposed in this utility model;

[0016] Figure 5 This is a schematic diagram of the grinding mechanism of a grinding device for hot expansion processing of steel pipes proposed in this utility model.

[0017] In the diagram: 1. Base; 2. First limiting plate; 3. Support frame; 101. U-shaped plate; 102. First roller; 103. First motor; 104. First rotating shaft; 105. First synchronous pulley; 106. Second synchronous pulley; 107. Synchronous belt; 201. Second limiting plate; 202. Cantilever plate; 203. Second roller; 204. Side plate; 205. Second rotating shaft; 206. Connecting piece; 207. First hydraulic rod; 301. Second hydraulic rod; 302. Mounting box; 303. Lead screw; 304. Second motor; 305. Slider; 306. Third motor; 307. Grinding disc. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figures 1-4 A grinding device for hot expansion processing of steel pipes includes a base 1. Four side plates 204 are fixedly connected to the top of the base 1, arranged in pairs. A second limiting plate 201 is fixedly connected between one pair of side plates 204, and a first limiting plate 2 is rotatably connected between the other pair of side plates 204. Multiple second rollers 203 are rotatably connected to one side of both the first limiting plate 2 and the second limiting plate 201. The steel pipe can be rotated by the second rollers 203. A second rotating shaft 205 is rotatably connected to the end of the first limiting plate 2 away from the second limiting plate 201. Multiple cantilever plates 202 are fixedly connected to the other end of the limiting plate 2. A connecting piece 206 is sleeved on the surface of the second rotating shaft 205. A rotating mechanism for rotating the first limiting plate 2 is provided at the bottom of the connecting piece 206. Two first rollers 102 are rotatably connected between the first limiting plate 2 and the second limiting plate 201. A rotating mechanism for rotating the first rollers 102 is provided on one side of each of the two first rollers 102. A support frame 3 is fixedly connected to the top of the base 1. A grinding mechanism for grinding steel pipes is provided at the bottom of the support frame 3. With the setting of the limiting plate, the steel pipe can be unloaded without the aid of external machinery.

[0020] Preferably, the rotating mechanism includes two first hydraulic rods 207, both of which are fixedly connected to the bottom of the connector 206, and the bottoms of both first hydraulic rods 207 are rotatably connected to the top of the base 1.

[0021] Preferably, the rotating mechanism includes a U-shaped plate 101, which is fixedly connected to the top of the base 1. A first roller 102 is rotatably connected to the top of the U-shaped plate 101. A first synchronous wheel 105 is fixedly connected to one side of the first roller 102. A first motor 103 is fixedly connected to one side of the base 1. A first rotating shaft 104 is fixedly connected to the output shaft of the first motor 103. The first rotating shaft 104 is rotatably connected inside the base 1. A second synchronous wheel 106 is sleeved on the surface of the first rotating shaft 104 near the first synchronous wheel 105. The same synchronous belt 107 is sleeved on the surfaces of the first synchronous wheel 105 and the second synchronous wheel 106. The first roller 102 can be rotated by the synchronous belt 107.

[0022] Preferably, the grinding mechanism includes two second hydraulic rods 301, both of which are fixedly connected to the top of the support frame 3. The bottom of the two second hydraulic rods 301 is fixedly connected to the same mounting box 302. A second motor 304 is fixedly connected to one side of the mounting box 302. A lead screw 303 is fixedly connected to the output shaft of the second motor 304. A slider 305 is sleeved on the surface of the lead screw 303, and the slider 305 and the lead screw 303 are configured to cooperate with each other. The slider 305 can be moved by the lead screw 303. A third motor 306 is fixedly connected to one side of the slider 305. A grinding disc 307 is fixedly connected to the output shaft of the third motor 306. The grinding disc 307 can be used to grind the surface of the steel pipe.

[0023] Working principle: During use, the steel pipe to be ground is placed between the first limiting plate 2 and the second limiting plate 201. Second rollers 203 are installed on the surfaces of both the second limiting plate 201 and the first limiting plate 2, so that the steel pipe contacts the second rollers 203 after placement. A first roller 102 is installed on the top of the base 1 and also contacts the steel pipe. After preparation, the second hydraulic rod 301 drives the grinding disc 307 to move downwards, thus completing the grinding work. After the pipe is ground, the grinding disc on one side of the base 1... The two first hydraulic rods 207 will move accordingly. A connector 206 is installed on the top of the two first hydraulic rods 207 and is connected to the first limiting plate 2. When the first hydraulic rods 207 are activated, they can drive the first limiting plate 2 to rotate. A cantilever plate 202 is installed on one side of the first limiting plate 2. As the first limiting plate 2 continues to rotate, the cantilever plate 202 will contact the steel pipe, thereby driving the steel pipe to rotate synchronously. When the first limiting plate 2 rotates to a certain angle, the steel pipe will slide off the surface of the first limiting plate 2, thereby achieving the purpose of unloading.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A grinding device for hot-expanding steel pipes, comprising a base (1), characterized in that, The base (1) top fixedly connected with four side plates (204), four said side plate (204) are two pairs of a group, one group of side plate (204) between the fixedly connected with the second limiting plate (201), another group of side plate (204) between the rotatably connected with the first limiting plate (2), the first limiting plate (2), the second limiting plate (201) symmetry side are rotatably connected with a plurality of second roller (203), the first limiting plate (2) away from the second limiting plate (201) one end rotatably connected with the second rotating shaft (205), the first limiting plate (2) the other end fixedly connected with a plurality of pick plate (202), the second rotating shaft (205) surface is provided with a connecting piece (206), the connecting piece (206) bottom is provided with a rotating mechanism for rotating the first limiting plate (2), the first limiting plate (2), the second limiting plate (201) between rotatably connected with two first roller (102), two said first roller (102) side are provided with rotating mechanism for rotating the first roller (102), the base (1) top fixedly connected with support frame (3), the support frame (3) bottom is provided with a polishing mechanism for polishing steel pipe.

2. The polishing apparatus for hot-expanding a steel pipe according to claim 1, wherein The rotating mechanism comprises two first hydraulic rods (207), two said first hydraulic rod (207) are fixedly connected to the connecting piece (206) bottom, two said first hydraulic rod (207) bottom are rotatably connected to the base (1) top.

3. The polishing apparatus for hot-expanding a steel pipe according to claim 1, wherein The rotating mechanism comprises a U-shaped plate (101), the U-shaped plate (101) is fixedly connected to the base (1) top, the first roller (102) is rotatably connected to the U-shaped plate (101) top, the first roller (102) side is fixedly connected with a first synchronous wheel (105), the base (1) side is fixedly connected with a first motor (103), the first motor (103) output shaft is fixedly connected with a first rotating shaft (104).

4. The polishing apparatus for hot-expanding a steel pipe according to claim 3, wherein The first rotating shaft (104) is rotatably connected to the base (1) inside, the first rotating shaft (104) is rotatably connected to the first synchronous wheel (105) one side surface of the second synchronous wheel (106), the first synchronous wheel (105), the second synchronous wheel (106) surface is provided with the same synchronous belt (107).

5. The polishing apparatus for hot-expanding a steel tube according to claim 1, wherein The polishing mechanism comprises two second hydraulic rods (301), two said second hydraulic rod (301) are fixedly connected to the support frame (3) top, two said second hydraulic rod (301) bottom are fixedly connected with the same installation box (302), the installation box (302) side is fixedly connected with a second motor (304).

6. The polishing apparatus for hot-expanding a steel tube according to claim 5, wherein The second motor (304) output shaft is fixedly connected with a lead screw (303), the lead screw (303) surface is provided with a sliding block (305), and the sliding block (305) and the lead screw (303) are arranged in a mutually cooperating manner, the sliding block (305) side is fixedly connected with a third motor (306), the third motor (306) output shaft is fixedly connected with a polishing disc (307).

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