Steel pipe end necking device capable of automatically centering

Abstract

The utility model relates to the technical field of steel pipe processing equipment, in particular to a steel pipe end necking device capable of automatically centering, which comprises a device body, a linear guide rail and a support component, the support component comprises a workbench, a portal frame, an upper arc plate, a lower arc plate, a lifting mechanism, a slider and a cylinder; a hydraulic oil cylinder in the device body is fixedly installed on a linear guide rail, a die base is arranged on the linear guide rail in a sliding mode and fixedly installed with the end of the hydraulic oil cylinder, a necking die is arranged in the die base, a die groove is formed in the center of the front end of the die base, and a gap is reserved between the inner wall of the die base and the necking die. The lifting mechanism drives the lower arc plate to move up and down, the air cylinder controls the upper arc plate to move up and down, a steel pipe is placed on the lower arc plate, the steel pipe is aligned with the center of the necking die by adjusting the lower arc plate, the air cylinder presses the upper arc plate downwards to limit the position of the steel pipe, and the position of the portal frame can be adjusted by sliding the sliding block.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe processing equipment, in particular to a steel pipe end necking device which can automatically center. Background Art

[0002] For structural steel pipes, in order to meet certain functions, steel pipes of different lengths need to be spliced ​​together. The commonly used splicing method is to cross-penetrate the steel pipes, that is, to neck down the end of one steel pipe and insert it into another steel pipe, and then rivet them together with bolts.

[0003] There is an automatic centering steel pipe end necking device (CN207431095U), which includes a hydraulic cylinder, a linear guide rail, a necking mold, a mold seat and a mold baffle. The hydraulic cylinder is fixed on the linear guide rail, the mold seat is slidably arranged on the linear guide rail and fixed to the end of the hydraulic cylinder, the necking mold is arranged in the mold seat, and the mold baffle is fixed on the side of the mold seat opposite to the hydraulic cylinder. The mold seat has a mold groove at the front end center, and the mold groove has a diameter larger than the outer diameter of the necking mold, and a gap is left between the inner wall and the necking mold. The utility model has a scientific and reasonable structural design, and has the advantages of simple structure, easy production, low production cost, upright operation, accurate centering of the steel pipe end, and can effectively correct and eliminate the warping phenomenon of the steel pipe end. It is a highly innovative automatic centering steel pipe end necking device.

[0004] However, in the above utility model, during the necking process of the steel pipe, the end of the steel pipe close to the necking mold needs to be supported because the steel pipe is usually longer, otherwise it is easy to sag and bend, thereby causing necking bending. Utility Model Content

[0005] The utility model aims to provide a steel pipe end necking device which can automatically center, aiming to solve the problem that during the necking process of the steel pipe, since the steel pipe is usually longer and the end close to the necking mold needs to be supported, otherwise it is easy to sag and bend, thereby causing necking bending.

[0006] To achieve the above-mentioned purpose, the utility model provides a steel pipe end necking device which can be automatically centered, comprising a device body, a linear guide rail and a support assembly, wherein the support assembly comprises a workbench, a gantry, an upper arc plate, a lower arc plate, a lifting mechanism, a slide block and a cylinder;

[0007] The workbench is slidably connected to the linear guide and is located at the bottom of the linear guide, the slider is slidably connected to the linear guide and is located on one side of the linear guide, the gantry is slidably connected to the slider and is located on one side of the slider, the lifting mechanism is installed on one side of the gantry, the lower arc plate is connected to the lifting mechanism and is located on one side of the lifting mechanism, the cylinder is fixedly connected to the gantry and is located at the top of the gantry, and the upper arc plate is fixedly connected to the output end of the cylinder and is located on one side of the cylinder.

[0008] Among them, the lifting mechanism includes a motor, a screw rod and a connecting plate, the motor is fixedly connected to the gantry and is located on the outside of the gantry, the screw rod is fixedly connected to the output end of the motor and is located on one side of the motor, the connecting plate is threadedly connected to the screw rod and is located on one side of the screw rod, the connecting plate is slidably connected to the gantry and is located on one side of the gantry, and the lower arc plate is fixedly mounted on the connecting plate.

[0009] Wherein, the support assembly further includes a threaded rod and a turntable, wherein the threaded rod is threadedly connected to the slider and is located on one side of the slider, and the turntable is fixedly connected to the threaded rod and is located on one side of the threaded rod.

[0010] Among them, the support assembly also includes a plurality of anti-slip strips and a plurality of rubber pads, the plurality of rubber pads are respectively arranged at the two ends of the upper arc plate and the lower arc plate, and the plurality of anti-slip strips are respectively rotatably installed on the side of the upper arc plate and the lower arc plate that are symmetrical to each other.

[0011] Wherein, the support assembly also includes a support cylinder and a level, wherein the support cylinder is fixedly connected to the workbench and is located at the bottom of the workbench, and the level is fixedly connected to the workbench and is located on one side of the workbench.

[0012] The utility model discloses a steel pipe end necking device which can be automatically centered. The device body comprises a hydraulic cylinder, a necking mold, a mold seat and a mold baffle. The hydraulic cylinder is fixedly mounted on the linear guide rail. The mold seat is slidably arranged on the linear guide rail and fixedly mounted on the end of the hydraulic cylinder. The necking mold is arranged in the mold seat. The mold baffle is fixedly mounted on the mold seat on a side opposite to the hydraulic cylinder. The mold seat has a mold groove at the front end center. The mold groove has a diameter larger than the outer diameter of the necking mold. A gap is left between the inner wall and the necking mold. The gantry is used to install the gas cylinder. The cylinder and the lifting mechanism drive the lower arc plate to move up and down through the lifting mechanism, and the cylinder controls the upper arc plate to move up and down, so that the steel pipe is placed on the lower arc plate, and then the lower arc plate is adjusted to align the steel pipe with the center of the necking mold, and then the cylinder presses the upper arc plate downward to limit the position of the steel pipe, and the position of the gantry can be adjusted by sliding the slider, which solves the problem that during the necking process of the steel pipe, the steel pipe is usually longer and the end close to the necking mold needs to be supported, otherwise it is easy to sag and bend, thereby causing necking bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a structural diagram of a steel pipe end necking device capable of automatic centering according to the first embodiment of the utility model.

[0015] Figure 2 It is a cross-sectional schematic diagram of an automatically centered steel pipe end necking device according to the first embodiment of the utility model.

[0016] Figure 3 It is a cross-sectional schematic diagram of a steel pipe end necking device capable of automatic centering according to the second embodiment of the utility model.

[0017] 101-device body, 102-linear guide rail, 103-support assembly, 104-workbench, 105-gantry, 106-upper arc plate, 107-lower arc plate, 108-lifting mechanism, 109-slider, 110-cylinder, 111-motor, 112-screw rod, 113-connecting plate, 114-threaded rod, 115-turntable, 116-anti-slip strip, 117-rubber pad, 201-support cylinder, 202-level meter. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0019] First embodiment

[0020] See also Figure 1-2 , Figure 1 It is a structural diagram of a steel pipe end necking device capable of automatic centering according to the first embodiment of the utility model. Figure 2 It is a cross-sectional schematic diagram of an automatically centered steel pipe end necking device according to the first embodiment of the utility model.

[0021] The utility model provides a steel pipe end necking device capable of automatic centering: comprising a device body 101, a linear guide rail 102, and a support assembly 103, wherein the support assembly 103 comprises a workbench 104, a gantry 105, an upper arc plate 106, a lower arc plate 107, a lifting mechanism 108, a slider 109, a cylinder 110, a motor 111, a screw rod 112, a connecting plate 113, a threaded rod 114, a turntable 115, an anti-slip strip 116, and a rubber pad 117. The above-mentioned solution solves the problem that during the necking process of the steel pipe, since the steel pipe is usually longer and one end close to the necking mold needs to be supported, otherwise it is easy to sag and bend, thereby causing the necking to bend.

[0022] In this embodiment, the device body 101 includes a hydraulic cylinder, a necking mold, a mold seat and a mold baffle. The hydraulic cylinder is fixed on the linear guide rail 102, the mold seat is slidably set on the linear guide rail 102 and fixed to the end of the hydraulic cylinder, the necking mold is set in the mold seat, and the mold baffle is fixed on the side of the mold seat opposite to the hydraulic cylinder. The mold seat has a mold groove at the center of its front end. The diameter of the mold groove is larger than the outer diameter of the necking mold, and a gap is left between its inner wall and the necking mold.

[0023] The workbench 104 is slidably connected to the linear guide 102 and is located at the bottom of the linear guide 102. The slider 109 is slidably connected to the linear guide 102 and is located at one side of the linear guide 102. The gantry 105 is slidably connected to the slider 109 and is located at one side of the slider 109. The lifting mechanism 108 is installed on one side of the gantry 105. The lower arc plate 107 is connected to the lifting mechanism 108 and is located at one side of the lifting mechanism 108. The cylinder 110 is fixedly connected to the gantry 105 and is located at the top of the gantry 105. The upper arc plate 106 is fixedly connected to the output end of the cylinder 110 and is located at one side of the cylinder 110. The rail 102 is arranged at the bottom of the device body 101, and the gantry 105 is used to install the cylinder 110 and the lifting mechanism 108. The lower arc plate 107 is driven to move up and down by the lifting mechanism 108. The cylinder 110 controls the upper arc plate 106 to move up and down, and the steel pipe is placed on the lower arc plate 107. Then, the steel pipe is aligned with the center of the necking mold by adjusting the lower arc plate 107. Then, the cylinder 110 presses the upper arc plate 106 downward to limit the position of the steel pipe. Sliding the slider 109 can adjust the position of the gantry 105, which solves the problem that the steel pipe is usually longer and the end close to the necking mold needs to be supported during the necking process, otherwise it is easy to sag and bend, thereby causing necking bending.

[0024] Secondly, the motor 111 is fixedly connected to the gantry 105 and is located on the outside of the gantry 105, the screw rod 112 is fixedly connected to the output end of the motor 111 and is located on one side of the motor 111, the connecting plate 113 is threadedly connected to the screw rod 112 and is located on one side of the screw rod 112, the connecting plate 113 is slidingly connected to the gantry 105 and is located on one side of the gantry 105, the lower arc plate 107 is fixedly installed on the connecting plate 113, the motor 111 drives the screw rod 112 to rotate, and the connecting plate 113 moves along the threaded rotation direction of the screw rod 112, thereby moving the lower arc plate 107 on the connecting plate 113.

[0025] Again, the threaded rod 114 is threadedly connected to the slider 109 and is located on one side of the slider 109. The turntable 115 is fixedly connected to the threaded rod 114 and is located on one side of the threaded rod 114. The turntable 115 provides a force point for rotating the threaded rod 114. The threaded rod 114 is rotated to squeeze and contact with the linear guide 102, thereby limiting the position of the slider 109.

[0026] Finally, the rubber pads 117 are respectively arranged at the two ends of the upper arc plate 106 and the lower arc plate 107, and the anti-slip strips 116 are respectively rotatably installed on the side of the upper arc plate 106 and the lower arc plate 107 that are symmetrical to each other. The rubber pads 117 prevent the sharp ends of the upper arc plate 106 and the lower arc plate 107 from scratching the steel pipe, and the anti-slip strips 116 increase the friction between the upper arc plate 106 and the lower arc plate 107 and the steel pipe.

[0027] In the use of the utility model, an automatically centered steel pipe end necking device, the device body 101 includes a hydraulic cylinder, a necking mold, a mold seat and a mold baffle, the hydraulic cylinder is fixed on the linear guide rail 102, the mold seat is slidably arranged on the linear guide rail 102 and fixed to the end of the hydraulic cylinder, the necking mold is arranged in the mold seat, the mold baffle is fixed on the side of the mold seat opposite to the hydraulic cylinder, the mold seat has a mold groove at the front end center, the mold groove has a diameter larger than the outer diameter of the necking mold, and a gap is left between its inner wall and the necking mold, the gantry 105 is used to install the cylinder 110 and the lift Structure 108, the lower arc plate 107 is driven to move up and down by the lifting mechanism 108, the upper arc plate 106 is controlled by the cylinder 110 to move up and down, the steel pipe is placed on the lower arc plate 107, and then the lower arc plate 107 is adjusted to align the steel pipe with the center of the necking mold, and then the cylinder 110 presses the upper arc plate 106 downward to limit the position of the steel pipe, and the sliding block 109 can adjust the position of the gantry 105, which solves the problem that during the necking process of the steel pipe, since the steel pipe is usually longer and the end close to the necking mold needs to be supported, otherwise it is easy to sag and bend, thereby causing necking bending.

[0028] Second embodiment

[0029] See also Figure 3 , Figure 3 The cross-sectional view of the second embodiment of the utility model is a steel pipe end necking device capable of automatic centering. Based on the first embodiment, the support assembly 103 of the steel pipe end necking device capable of automatic centering of the utility model further includes a support cylinder 201 and a level 202.

[0030] The supporting cylinder 201 is fixedly connected to the workbench 104 and is located at the bottom of the workbench 104. The level 202 is fixedly connected to the workbench 104 and is located on one side of the workbench 104. The level 202 is used to observe whether the device is balanced. When it is unbalanced, the workbench 104 is controlled to remain level through the four supporting cylinders 201 at the bottom of the workbench 104.

[0031] What is disclosed above is only a preferred embodiment of the steel pipe end necking device that can automatically center the present invention. Of course, this cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. An automatically centered steel pipe end necking device, comprising a device body and a linear guide rail, wherein the linear guide rail is arranged at the bottom of the device body, characterized in that: It also includes a support assembly, which includes a workbench, a gantry, an upper arc plate, a lower arc plate, a lifting mechanism, a slider and a cylinder; The workbench is slidably connected to the linear guide and is located at the bottom of the linear guide, the slider is slidably connected to the linear guide and is located on one side of the linear guide, the gantry is slidably connected to the slider and is located on one side of the slider, the lifting mechanism is installed on one side of the gantry, the lower arc plate is connected to the lifting mechanism and is located on one side of the lifting mechanism, the cylinder is fixedly connected to the gantry and is located at the top of the gantry, and the upper arc plate is fixedly connected to the output end of the cylinder and is located on one side of the cylinder.

2. The steel pipe end necking device capable of automatic centering as claimed in claim 1, characterized in that: The lifting mechanism includes a motor, a screw rod and a connecting plate. The motor is fixedly connected to the gantry and is located on the outside of the gantry. The screw rod is fixedly connected to the output end of the motor and is located on one side of the motor. The connecting plate is threadedly connected to the screw rod and is located on one side of the screw rod. The connecting plate is slidably connected to the gantry and is located on one side of the gantry. The lower arc plate is fixedly mounted on the connecting plate.

3. The steel pipe end necking device capable of automatic centering as claimed in claim 2, characterized in that: The support assembly further comprises a threaded rod and a turntable, wherein the threaded rod is threadedly connected to the slider and is located on one side of the slider, and the turntable is fixedly connected to the threaded rod and is located on one side of the threaded rod.

4. The steel pipe end necking device capable of automatic centering as claimed in claim 3, characterized in that: The support assembly also includes a plurality of anti-slip strips and a plurality of rubber pads. The plurality of rubber pads are respectively arranged at both ends of the upper arc plate and the lower arc plate. The plurality of anti-slip strips are respectively rotatably installed on one side of the upper arc plate and the lower arc plate that are symmetrical to each other.

5. The steel pipe end necking device capable of automatic centering as claimed in claim 4, characterized in that: The support assembly also includes a support cylinder and a level. The support cylinder is fixedly connected to the workbench and is located at the bottom of the workbench. The level is fixedly connected to the workbench and is located at one side of the workbench.

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