Bending machine for preparing bent seamless steel tube

Abstract

The utility model is applicable to the technical field of bending machines, and provides a bending machine for preparing a bent seamless steel pipe, which comprises a bottom plate, an adjusting part is arranged above the bottom plate and comprises a rotating shaft, a conical roller is fixedly connected to the peripheral side surface of the rotating shaft, and a plurality of limiting grooves are uniformly formed in the peripheral side surface of the conical roller. Two limiting rods matched with the conical rollers are fixedly connected to the circumferential side face of the rotating shaft, a straight plate is fixedly connected between the two limiting rods, and a plurality of limiting blocks matched with the limiting grooves are evenly and fixedly connected to the straight plate; a rotary disc is fixedly connected to the circumferential side face of the rotary shaft, a hinge rod is hinged to the rotary disc, a blanking piece is arranged on the side face of the conical roller, and first connecting blocks are symmetrically and rotationally connected to the two opposite ends of the rotary shaft. Seamless steel pipes are bent at different angles according to actual needs, and the steel pipe discharging process can be optimized through cooperation of the electric push rod and the gradient sliding block.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, and more specifically, it relates to a bending machine for preparing bent seamless steel pipes. Background Art

[0002] Seamless steel pipe is made by piercing a whole round steel, and the steel pipe without weld on the surface is called seamless steel pipe. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, pipe jacking, etc. According to the cross-sectional shape, seamless steel pipes are divided into two types: round and special-shaped. Special-shaped pipes have various complex shapes such as square, oval, triangular, hexagonal, sunflower-shaped, star-shaped, and finned pipes. The maximum diameter can reach 900mm, and the minimum diameter is 4mm. According to different uses, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used as oil geological drilling pipes, cracking pipes for petrochemical industry, boiler pipes, bearing pipes, and high-precision structural steel pipes for automobiles, tractors, and aviation.

[0003] When using the existing bending machine to bend seamless steel pipes, the bending machine can only bend the seamless steel pipe at a fixed angle according to the equipment itself, which is not convenient to adjust the bending angle of the steel pipe according to the actual production needs, and it is difficult to take out the steel pipe after bending the seamless steel pipe. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a bending machine for preparing bent seamless steel pipes, which can cooperate the conical roller with the limit blocks at different positions to bend the seamless steel pipe at different angles according to actual needs when bending the seamless steel pipe, and can optimize the process of unloading the steel pipe through the cooperation of the electric push rod and the slope slider.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A bending machine for preparing bent seamless steel pipes, including a bottom plate, an adjusting member is arranged above the bottom plate, the adjusting member includes a rotating shaft, a conical roller is fixedly connected to the circumferential surface of the rotating shaft, a plurality of limiting grooves are evenly formed on the circumferential surface of the conical roller, two limiting rods adapted to the conical roller are fixedly connected to the circumferential surface of the rotating shaft, a straight plate is fixedly connected between the two limiting rods, and a plurality of limiting blocks adapted to the limiting grooves are evenly fixedly connected to the straight plate; a turntable is fixedly connected to the circumferential surface of the rotating shaft, an articulated rod is articulated on the turntable, and a blanking member is arranged on the side of the conical roller.

[0007] The utility model is further configured as follows: both opposite ends of the rotating shaft are symmetrically and rotatably connected with first connecting blocks, two connecting rods are fixedly connected to the sides of the two first connecting blocks, several wheels are symmetrically arranged on the bottom surface of the bottom plate, several support piles are fixedly connected to the surface of the bottom plate evenly and symmetrically, and each connecting rod is fixedly connected to the corresponding support pile.

[0008] The utility model is further configured as follows: a hydraulic cylinder is fixedly connected to the surface of the bottom plate, a top rod is fixedly connected to the output end of the hydraulic cylinder, and the top rod is rotatably connected with a hinge rod.

[0009] The utility model is further configured as follows: the blanking part includes two second connecting blocks, an inclined plate is fixedly connected between the two second connecting blocks, two matching plates are fixedly connected to the side of the inclined plate, a lead screw is rotatably connected between the two matching plates, a motor is arranged on the side of the inclined plate, the output end of the motor is fixedly connected to the lead screw, a moving sleeve is threadedly connected to the lead screw, the moving sleeve is slidably connected to the inclined plate, a chute adapted to the moving sleeve is formed on the inclined plate, a moving groove adapted to a limiting block is formed on the inclined plate, an L-shaped rod is fixedly connected to the side of the moving sleeve, a sliding table is fixedly connected to the side of the L-shaped rod, a slope slider is slidably connected to the sliding table, and an electric push rod is bolted to the side of the L-shaped rod, and the output end of the electric push rod is fixedly connected to the slope slider.

[0010] The utility model is further configured as follows: a limiting plate is fixedly connected to the side of the L-shaped rod, a falling rod is slidably connected to the limiting plate, a baffle is fixedly connected to the circumferential side of the falling rod, and a spring is fixedly connected to the surface of the baffle, and the spring is fixedly connected to the baffle.

[0011] The utility model is further configured as follows: a pressing block adapted to the limiting block is fixedly connected to one end of the falling rod, and a linkage block adapted to the slope slider is fixedly connected to the other end of the falling rod.

[0012] The advantages of the utility model are as follows:

[0013] 1. When the utility model is in use, by inserting the seamless steel pipe into the limiting blocks at different positions and driving the turntable to rotate through the hydraulic cylinder, the bending angle of the seamless steel pipe can be adjusted through the limiting grooves at different angles on the conical roller.

[0014] 2. When the utility model is in use, through the cooperation between the slope slider and the linkage block, when it is necessary to take out the seamless steel pipe, the falling rod can be lowered, and the seamless steel pipe without limitation can fall, further optimizing the bending process of the seamless steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a partial structural schematic diagram of the blanking part of the present utility model.

[0017] Figure 3 This is an assembly drawing of the hinge rod and the ejector rod of the present utility model

[0018] Figure 4 This is a partial structural schematic diagram of the blanking part of the present utility model.

[0019] Figure 5 This is a partial structural schematic diagram of the blanking part of the present utility model.

[0020] Figure 6 This is an assembly drawing of the limit block and the abutting block of the present utility model.

[0021] In the figure: 1, bottom plate; 2, adjusting member; 3, rotating shaft; 4, conical roller; 5, limiting groove; 6, first connecting block; 7, connecting rod; 8, limiting rod; 9, straight plate; 10, limit block; 11, turntable; 12, hinge rod; 13, support pile; 14, hydraulic cylinder; 15, ejector rod; 16, blanking part; 17, second connecting block; 18, matching plate; 19, lead screw; 20, motor; 21, moving sleeve; 22, sliding groove; 23, moving groove; 24, L-shaped rod; 25, sliding table; 26, limiting plate; 27, electric push rod; 28, slope slider; 29, dropping rod; 30, baffle; 31, spring; 32, abutting block; 33, wheel; 34, linkage block; 35, inclined plate. Detailed implementation manners

[0022] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0023] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0024] In the present utility model, unless otherwise stated, the orientations such as "upper, lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are usually in the left and right shown in the drawings; "inside, outside" refer to the inside and outside relative to the contours of the respective components, but the above orientation terms do not limit the present utility model.

[0025] Embodiment 1

[0026] Please refer to Figures 1-6 , the present utility model provides the following technical solutions:

[0027] Specifically, it refers to a bending machine for manufacturing bent seamless steel pipes, including a bottom plate 1. Above the bottom plate 1, there is an adjusting member 2. The adjusting member 2 includes a rotating shaft 3. A conical roller 4 is fixedly connected to the circumferential side of the rotating shaft 3. A number of limiting grooves 5 are evenly formed on the circumferential side of the conical roller 4. Two limiting rods 8 adapted to the conical roller 4 are fixedly connected to the circumferential side of the rotating shaft 3. A straight plate 9 is fixedly connected between the two limiting rods 8. A number of limiting blocks 10 adapted to the limiting grooves 5 are evenly and fixedly connected to the straight plate 9. A turntable 11 is fixedly connected to the circumferential side of the rotating shaft 3. An articulated rod 12 is hinged on the turntable 11. A blanking member 16 is arranged on the side of the conical roller 4. Both opposite ends of the rotating shaft 3 are symmetrically and rotatably connected with first connecting blocks 6. Two connecting rods 7 are fixedly connected to the sides of both first connecting blocks 6. A number of wheels 33 are symmetrically arranged on the bottom surface of the bottom plate 1. A number of support piles 13 are evenly and symmetrically fixedly connected to the surface of the bottom plate 1. Each connecting rod 7 is fixedly connected to the corresponding support pile 13. A hydraulic cylinder 14 is fixedly connected to the surface of the bottom plate 1. A push rod 15 is fixedly connected to the output end of the hydraulic cylinder 14. The push rod 15 is rotatably connected with the articulated rod 12.

[0028] The specific application of this embodiment is as follows: Insert the seamless steel pipe to be bent into the blanking member 16. Adjust the position of the seamless steel pipe through the blanking member 16 according to the required bending angle. The end of the seamless steel pipe is fixed in the corresponding limiting blocks 10 and limiting grooves 5. The seamless steel pipe is limited by the blanking member 16. The hydraulic cylinder 14 expands and contracts to drive the push rod 15 to move. The push rod 15 pushes the articulated rod 12 to move. The articulated rod 12 drives the turntable 11 to rotate. The turntable 11 rotates to drive the conical roller 4 and the limiting blocks 10 to rotate. Affected by the limitation of the limiting blocks 10 and the conical roller 4, the steel pipe bends along the arc of the limiting groove 5 in the corresponding limiting block 10. When in use, the seamless steel pipe can be inserted into the corresponding limiting block 10 according to the actually required bending angle for bending at different angles.

[0029] Embodiment Two

[0030] Please refer to Figures 2-6, in the second embodiment, the following improvements are made on the basis of the first embodiment. Specifically, the blanking member 16 includes two second connecting blocks 17. A diagonal plate 35 is fixedly connected between the two second connecting blocks 17. Two matching plates 18 are fixedly connected to the side of the diagonal plate 35. A lead screw 19 is rotatably connected between the two matching plates 18. A motor 20 is arranged on the side of the diagonal plate 35. The output end of the motor 20 is fixedly connected to the lead screw 19. A moving sleeve 21 is threadedly connected to the lead screw 19. The moving sleeve 21 is slidably connected to the diagonal plate 35. A sliding groove 22 adapted to the moving sleeve 21 is formed on the diagonal plate 35. A moving groove 23 adapted to the limiting block 10 is formed on the diagonal plate 35. An L-shaped rod 24 is fixedly connected to the side of the moving sleeve 21. A sliding table 25 is fixedly connected to the side of the L-shaped rod 24. A slope slider 28 is slidably connected to the sliding table 25. An electric push rod 27 is bolted to the side of the L-shaped rod 24. The output end of the electric push rod 27 is fixedly connected to the slope slider 28. A limiting plate 26 is fixedly connected to the side of the L-shaped rod 24. A dropping rod 29 is slidably connected to the limiting plate 26. A baffle 30 is fixedly connected to the circumferential side of the dropping rod 29. A spring 31 is fixedly connected to the surface of the baffle 30. The spring 31 is fixedly connected to the baffle 30. One end of the dropping rod 29 is fixedly connected to a pressing block 32 adapted to the limiting block 10. The other end of the dropping rod 29 is fixedly connected to a linkage block 34 adapted to the slope slider 28.

[0031] A specific application of this embodiment is as follows: The seamless steel pipe is inserted into the moving groove 23 and then inserted into the limiting block 10 after being limited by the pressing block 32. When in use, the motor 20 drives the lead screw 19 to rotate, and the moving sleeve 21 on the lead screw 19 moves. The moving sleeve 21 drives the seamless steel pipe and the pressing block 32 to move in the sliding groove 22 to adjust the position where the seamless steel pipe is inserted into the limiting block 10. When taking out the pipe after processing, the electric push rod 27 is used to push the slope slider 28, and the spring 31 pushes the baffle 30 and the linkage block 34 to move downward along the slope slider 28, so that the dropping rod 29 drives the pressing block 32 to move downward. After the seamless steel pipe is released from the limitation of the pressing block 32, it can be taken out. When using it again, the slope slider 28 can be reset by the electric push rod 27, optimizing the process of processing and taking out the seamless steel pipe in the bending machine.

[0032] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein.

[0035] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0036] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A bending machine for preparing a bent seamless steel pipe, comprising a bottom plate (1), characterized in that: An adjusting member (2) is arranged above the bottom plate (1), the adjusting member (2) comprises a rotating shaft (3), a tapered roller (4) is fixedly connected to the peripheral side surface of the rotating shaft (3), a plurality of limiting grooves (5) are evenly arranged on the peripheral side surface of the tapered roller (4), two limiting rods (8) adapted to the tapered roller (4) are fixedly connected to the peripheral side surface of the rotating shaft (3), a straight plate (9) is fixedly connected between the two limiting rods (8), and a plurality of limiting blocks (10) adapted to the limiting grooves (5) are evenly fixedly connected to the straight plate (9); A rotating disk (11) is fixedly connected to the peripheral side of the rotating shaft (3), a hinge rod (12) is hinged on the rotating disk (11), and a blanking piece (16) is arranged on the side of the tapered roller (4).

2. A bending machine for preparing a bent seamless steel pipe according to claim 1, characterized in that: The two opposite ends of the rotating shaft (3) are symmetrically rotatably connected to the first connecting blocks (6), and the sides of the two first connecting blocks (6) are fixedly connected to two connecting rods (7). The bottom surface of the base plate (1) is symmetrically provided with a plurality of wheels (33). The surface of the base plate (1) is evenly and symmetrically fixedly connected to a plurality of supporting piles (13), and each connecting rod (7) is fixedly connected to the corresponding supporting pile (13).

3. A bending machine for preparing a bent seamless steel pipe according to claim 1, characterized in that: The surface of the bottom plate (1) is fixedly connected to a hydraulic cylinder (14), the output end of the hydraulic cylinder (14) is fixedly connected to a push rod (15), and the push rod (15) is rotatably connected to the hinge rod (12).

4. A bending machine for preparing a bent seamless steel pipe according to claim 3, characterized in that: The blanking piece (16) comprises two second connecting blocks (17), an inclined plate (35) is fixedly connected between the two second connecting blocks (17), two matching plates (18) are fixedly connected to the side of the inclined plate (35), a screw rod (19) is rotatably connected between the two matching plates (18), a motor (20) is arranged on the side of the inclined plate (35), an output end of the motor (20) is fixedly connected to the screw rod (19), a movable sleeve (21) is threadedly connected to the screw rod (19), and the movable sleeve (21) is slidably connected to the inclined plate (35). The inclined plate (35) is provided with a slide groove (22) adapted to the moving sleeve (21), the inclined plate (35) is provided with a moving groove (23) adapted to the limit block (10), the moving sleeve (21) is fixedly connected to an L-shaped rod (24) on the side, the L-shaped rod (24) is fixedly connected to a slide table (25) on the side, the slide table (25) is slidably connected to a slope slider (28), the L-shaped rod (24) is bolted to an electric push rod (27) on the side, and the output end of the electric push rod (27) is fixedly connected to the slope slider (28).

5. A bending machine for preparing a bent seamless steel pipe according to claim 4, characterized in that: The side of the L-shaped rod (24) is fixedly connected to a limit plate (26), the limit plate (26) is slidably connected to a drop rod (29), the side of the drop rod (29) is fixedly connected to a baffle (30), the surface of the baffle (30) is fixedly connected to a spring (31), and the spring (31) is fixedly connected to the baffle (30).

6. A bending machine for preparing a bent seamless steel pipe according to claim 5, characterized in that: One end of the drop rod (29) is fixedly connected to a pressing block (32) matched with the limit block (10), and the other end of the drop rod (29) is fixedly connected to a linkage block (34) matched with the slope slider (28).

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