Seamless steel tube straightening device

Abstract

The utility model discloses a seamless steel tube straightening device, which belongs to the technical field of seamless steel tube straightening, and comprises a bottom plate, mounting plates are fixedly mounted on two sides of the bottom plate, a limit part is mounted on one side of each mounting plate and used for limiting a seamless steel tube, a straightening part is mounted at the upper end of the bottom plate, and the straightening part is used for straightening the seamless steel tube. The straightening piece is used for straightening the seamless steel pipe, the limiting piece comprises a bottom rod, and the bottom rod is fixedly installed on one side of the installation plate. According to the device, the seamless steel pipe is limited through the limiting piece, so that an operator does not need to hold the seamless steel pipe for operation in the straightening process, the operator is prevented from being injured in the straightening work, the situation that the limiting device of the device is matched with elasticity of an elastic body through a limiting rotating pipe is avoided, and meanwhile the straightening piece can adjust the position of a straightening rotating wheel; the device can be suitable for seamless steel pipes of different models and thicknesses, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the field of seamless steel pipe straightening, in particular to a seamless steel pipe straightening device. Background Art

[0002] Seamless steel pipes have hollow cross-sections and are widely used as pipelines for conveying fluids, such as pipelines for conveying oil, natural gas, coal gas, water and certain solid materials. Compared with solid steel materials such as round steel, steel pipes are lighter in weight when the bending and torsional strengths are the same. They are an economical cross-section steel material and are widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, bicycle frames, and steel scaffolding used in construction. Using steel pipes to manufacture annular parts can improve material utilization, simplify manufacturing processes, save materials and processing time, and have been widely used in manufacturing.

[0003] The U-shaped push rod is driven by a cylinder to move up and down, and the two protrusions move up and down to further drive the two clamping plates provided with triangular plates to move left and right. The two clamping plates move relative to each other to squeeze the seamless steel pipe placed flat on the base. Two clamping plates are provided on the base, and the cylinder is extended and retracted to drive the U-shaped push rod to move down, thereby driving the protrusion provided with an inclined surface to move down. Since triangular plates are provided on the sides of the two clamping plates, the downward movement of the protrusion will push the two triangular plates closer together, thereby pushing the two clamping plates to continuously squeeze the steel pipe, so that the steel pipe with a large degree of bending can be quickly straightened initially, so as to facilitate accurate straightening in the later stage; by providing an extrusion mechanism, as the sleeve moves downward, the pressure rod can be driven downward, and then the pressure rod can be used to press the steel pipe to prevent the steel pipe from warping during the straightening process, which can play a certain protective role. After research by the applicant, it was found that the above scheme has certain shortcomings. When the device can perform preliminary straightening on the steel pipe, the bent steel pipe is placed horizontally on a base between two clamps, and the U-shaped push rod is driven downward by the telescopic rod of the cylinder, thereby pushing the two protrusions downward so that the two triangular plates are brought closer inward, so that the clamps straighten the bent steel pipe. However, the device lacks a device to limit the seamless steel pipe. The steel pipe is placed horizontally on the base between the two clamps and straightened. During the squeezing process, the steel pipe is not limited. Due to the round shape of the steel pipe, the steel pipe may rotate. Therefore, the squeezed position may not be the ideal straightening and squeezing position. Therefore, the device may have an unsatisfactory straightening effect. Therefore, when straightening, the operator is required to hold the steel pipe and squeeze and straighten it through the clamps. However, during the straightening process, the steel pipe is subjected to greater force and the force will be transmitted to the operator, resulting in low safety and possible accidents. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a seamless steel pipe straightening device, which aims to improve the lack of a device for limiting the seamless steel pipe in the device. The steel pipe is placed horizontally on a base between two clamps and the steel pipe is straightened. During the extrusion process, the steel pipe is not limited. Due to the round shape of the steel pipe, the steel pipe may rotate. Therefore, the extruded position may not be an ideal straightening and extrusion position. Therefore, the device may have an unsatisfactory straightening effect. Therefore, when straightening, the device requires the operator to hold the steel pipe and then squeeze and straighten the steel pipe through the clamps. However, during the straightening process, the steel pipe is subjected to greater force and the force will be transmitted to the operator, resulting in low safety and the possibility of accidents.

[0005] The utility model is implemented as follows: a seamless steel pipe straightening device comprises a bottom plate, mounting plates are fixedly mounted on both sides of the bottom plate, a limiting member is mounted on one side of the mounting plate, the limiting member is used to limit the seamless steel pipe, a straightening member is mounted on the upper end of the bottom plate, and the straightening member is used to straighten the seamless steel pipe.

[0006] In a preferred technical solution of the present invention, the limiting member includes a bottom rod, which is fixedly installed on one side of the mounting plate, a sliding tube is slidably inserted into the inner wall of the bottom rod, an elastic body is connected to the inner end of the sliding tube and one end of the bottom rod, a mounting frame is fixedly installed on one end of the sliding tube, a mounting rod is fixedly installed on the inner end of the mounting frame, a limiting rotating tube is rotatably installed on the outside of the mounting rod, and the seamless steel pipe is passed between the two groups of limiting rotating tubes. The limiting rotating tube limits the seamless steel pipe through the elasticity of the elastic body.

[0007] In a preferred technical solution of the utility model, the bottom plate is hollow, a slide groove is provided on the upper end of the bottom plate, the mounting frame slides in the slide groove, and the position-limiting rotating tube is provided above the bottom plate.

[0008] In a preferred technical solution of the utility model, a pulley is provided at the bottom end of the mounting frame, so that the mounting frame moves more smoothly.

[0009] In a preferred technical solution of the present utility model, the position-limiting rotating tube is rotatably mounted on the outside of the mounting rod via a bearing.

[0010] In a preferred technical solution of the utility model, the straightening device includes a screw rod, which is rotatably installed on one side of the mounting plate, and a movable sleeve plate is threadedly installed on the screw rod. The movable sleeve plate is provided with two groups and the threads at both ends of the screw rod are in opposite directions. A straightening wheel is rotatably installed on the lower end of the movable sleeve plate. The rotation of the screw rod causes the movable sleeve plate to move, so that the two groups of straightening wheels straighten the seamless steel pipe.

[0011] In a preferred technical solution of the utility model, a motor is installed on the upper end of the movable sleeve plate, and the straightening wheel is driven by the motor.

[0012] In a preferred technical solution of the utility model, the screw rod rotates and passes through the mounting plate, and an external holder is provided at one end of the screw rod, and the screw rod is rotated by the external holder.

[0013] In a preferred technical solution of the utility model, a guide rod is fixedly installed on one side of the mounting plate, and the guide rod slides through the movable sleeve plate to enhance the stability of the movable sleeve plate when moving.

[0014] The beneficial effects of the utility model are as follows: the utility model obtains a seamless steel pipe straightening device through the above-mentioned design. When in use, the seamless steel pipe is passed through between the two groups of limit rotating pipes, the limit rotating pipe is in contact with the seamless steel pipe, the mounting frame moves backward through the roller, so that the sliding pipe moves backward, so that the elastomer is squeezed by the sliding pipe, and the elasticity of the elastomer makes the limit rotating pipe always squeeze and limit the seamless steel pipe, the screw rod is rotated by the external holding object, and the rotation of the screw rod makes the movable sleeve drive the motor and the straightening wheel to move, so that the straightening wheel and the seamless steel pipe are in contact, and the straightening wheel is driven by the motor to make the two groups of straightening wheels rotate, so that the straightening wheel straightens the seamless steel pipe. The device limits the seamless steel pipe through a limiter, so that during the straightening process, the operator does not need to hold the seamless steel pipe to operate, avoiding injuries to the operator during the straightening work. The limiter of the device cooperates with the elasticity of the elastic body through the limiter rotating pipe. At the same time, the straightening part can adjust the position of the straightening wheel, so that the device can be applied to seamless steel pipes of various models and thicknesses, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic structural diagram of a seamless steel pipe straightening device provided by an embodiment of the utility model;

[0017] Figure 2 Another structural schematic diagram provided for an embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the structure of the position limiting member provided in the embodiment of the utility model;

[0019] Figure 4A schematic diagram of the structure of a straightening member provided in an embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the bottom rod, sliding tube and elastic body structure provided in an embodiment of the utility model.

[0021] In the figure: 100-bottom plate; 101-slide groove; 110-mounting plate; 120-limiting member; 121-bottom rod; 122-sliding tube; 123-elastic body; 124-mounting frame; 125-mounting rod; 126-limiting rotating tube; 127-roller; 130-straightening member; 131-screw rod; 132-moving sleeve plate; 133-motor; 134-straightening wheel; 135-guide rod; 136-external holding object. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution: a seamless steel pipe straightening device, including a base plate 100, mounting plates 110 are fixedly installed on both sides of the base plate 100, a limiting member 120 is installed on one side of the mounting plate 110, the limiting member 120 is used to limit the seamless steel pipe, and a straightening member 130 is installed on the upper end of the base plate 100, and the straightening member 130 is used to straighten the seamless steel pipe.

[0024] In some specific implementation schemes, the limiting member 120 includes a bottom rod 121, which is fixedly installed on one side of the mounting plate 110. A sliding tube 122 is slidably inserted into the inner wall of the bottom rod 121. An elastic body 123 is connected to the inner end of the sliding tube 122 and one end of the bottom rod 121. A mounting frame 124 is fixedly installed at one end of the sliding tube 122. A mounting rod 125 is fixedly installed at the inner end of the mounting frame 124. A limiting rotating tube 126 is rotatably installed on the outside of the mounting rod 125. The seamless steel pipe is passed between the two groups of limiting rotating tubes 126. The elasticity of the elastomer 123 allows the limiting rotating tube 126 to limit the seamless steel pipe.

[0025] In some specific implementation schemes, the bottom plate 100 is hollow, a slide groove 101 is provided at the upper end of the bottom plate 100 , the mounting frame 124 slides in the slide groove 101 , and the limiting rotating tube 126 is provided above the bottom plate 100 .

[0026] In some specific embodiments, a pulley is disposed at the bottom end of the mounting frame 124 to make the mounting frame 124 move more smoothly.

[0027] In some specific implementation schemes, the limiting rotating tube 126 is rotatably mounted on the outside of the mounting rod 125 via a bearing.

[0028] In some specific embodiments, the straightening member 130 includes a screw rod 131, which is rotatably installed on one side of the mounting plate 110. The screw rod 131 is threadedly installed with a movable sleeve 132. The movable sleeve 132 is provided with two groups and the threads at both ends of the screw rod 131 are in opposite directions. A straightening wheel 134 is rotatably installed at the lower end of the movable sleeve 132. The rotation of the screw rod 131 causes the movable sleeve 132 to move, so that the two groups of straightening wheels 134 straighten the seamless steel pipe.

[0029] In some specific implementation schemes, a motor 133 is installed on the upper end of the movable sleeve plate 132 , and the straightening wheel 134 is driven by the motor 133 .

[0030] In some specific implementation schemes, the screw rod 131 rotates and penetrates the mounting plate 110 , and an external holder 136 is provided at one end of the screw rod 131 , and the screw rod 131 is rotated by the external holder 136 .

[0031] In some specific implementation schemes, a guide rod 135 is fixedly mounted on one side of the mounting plate 110 , and the guide rod 135 slides through the movable sleeve plate 132 to enhance the stability of the movable sleeve plate 132 when moving.

[0032] Working principle: When in use, the seamless steel pipe is passed through between the two groups of limiting rotating pipes 126, the limiting rotating pipes 126 are in contact with the seamless steel pipe, and the mounting frame 124 moves backward through the roller 127, so that the sliding pipe 122 moves backward, so that the elastic body 123 is squeezed by the sliding pipe 122, and the elasticity of the elastic body 123 makes the limiting rotating pipe 126 always squeeze and limit the seamless steel pipe, and the screw rod 131 is rotated by the external holding object 136. The rotation of the screw rod 131 makes the movable sleeve 132 drive the motor 133 and the straightening wheel 134 to move, so that the straightening wheel 134 is in contact with the seamless steel pipe, and the straightening wheel 134 is driven by the motor 133 to make the two groups of straightening wheels 134 rotate, so that the straightening wheel 134 straightens the seamless steel pipe.

[0033] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A seamless steel pipe straightening device, comprising a bottom plate, characterized in that: The cam is provided with a plurality of guide wheels, and the guide wheels are provided with a plurality of guide wheels at the ends of the guide wheels, and the guide wheels are provided with a plurality of guide wheels at the ends of the guide wheels, and the guide wheels are provided with a plurality of guide wheels at the ends of the guide wheels.

2. A seamless steel pipe straightening device as claimed in claim 1, characterized in that: A pulley is arranged at the bottom end of the mounting frame.

3. A seamless steel pipe straightening device as claimed in claim 1, characterized in that: The position-limiting rotating tube is rotatably mounted on the outside of the mounting rod via a bearing.

4. A seamless steel pipe straightening device as claimed in claim 1, characterized in that: A motor is installed on the upper end of the movable sleeve plate, and the straightening wheel is driven by the motor.

5. A seamless steel pipe straightening device as claimed in claim 1, characterized in that: The screw rod rotates and passes through the mounting plate, and an external holder is arranged at one end of the screw rod.

6. A seamless steel pipe straightening device as claimed in claim 1, characterized in that: A guide rod is fixedly mounted on one side of the mounting plate, and the guide rod slides through the movable sleeve plate.

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