Steel pipe port reducing, rolling and rounding device

Abstract

The utility model relates to the technical field of pipe reducing machines, in particular to a steel pipe port reducing, rolling and rounding device which comprises a shell, a hydraulic cylinder, a pushing plate and a pipe reducing assembly and further comprises a supporting assembly. The supporting assembly comprises a rotating motor, a rotating seat, a moving seat, a spring, a rolling seat and a driving component, the rotating motor is connected with the pushing plate, the rotating seat is rotatably connected with the pushing plate, the moving seat is slidably connected with the rotating seat, the spring is connected with the moving seat, and the rolling seat is connected with the spring. Then a driving component is started to drive a moving seat to move, then a spring and a rolling seat are driven to move, the rolling seat can abut against the interior of the steel pipe, at the moment, reducing machining is conducted through a pipe reducing assembly, a rotating motor is started in the pipe reducing machining process to drive a rotating seat to rotate, then the rolling seat is driven to rotate, and the rolling seat can rotate along the inner wall of the steel pipe; therefore, the inner wall of the steel pipe is supported and collapsing deformation of the steel pipe is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tube shrinking machines, in particular to a device for reducing the diameter of a steel tube end and rolling it into a round shape. Background Art

[0002] When reducing the diameter of the steel pipe end, a shrinking machine is required. Most traditional shrinking machines use a fully hydraulic horizontal press or a radial two-claw clamp-type shrinking mechanism. The fully hydraulic horizontal press: the size of the shrinking part is unstable, the cutting loss is large, the outer diameter of the rough pipe is high, and the pipe end must be flush; the radial two-claw clamp-type shrinking mechanism has the following disadvantages: the shrinking shape is close to a diamond, the wall thickness of the shrinking part is uneven, the cutting loss is large, and the edges are easy to enter the roller gap and cause rolling accidents.

[0003] Prior art CN205949696U discloses a steel tube shrinking machine, including a frame body, a shrinking assembly mounting hole is opened on the frame body, a shrinking block is installed in the shrinking assembly mounting hole, and a block driving device for pushing the shrinking block to feed radially along the shrinking assembly mounting hole, there are multiple shrinking blocks, all of which are distributed in a circular array relative to the central axis of the shrinking assembly mounting hole; the block driving device drives all the shrinking blocks to move synchronously; each shrinking block is installed with a shrinking die. The steel tube shrinking machine of the utility model shrinks the steel tube through the shrinking dies distributed in a circular array, so that the steel tube is evenly stressed, the shrinking effect is good, and the quality is good. In addition, the steel tube shrinking machine of the utility model has a simple structure and low cost.

[0004] The above device performs the tube shrinking operation through a plurality of tube shrinking dies, but the inner wall of the steel tube cannot be supported during the tube shrinking operation, and the steel tube is prone to collapse and deformation. Utility Model Content

[0005] The utility model aims to provide a device for reducing the diameter of a steel pipe end and rolling it into a round shape, which solves the problem that an existing steel pipe reducing machine cannot support the inner wall of the steel pipe during pipe reducing and the steel pipe is prone to collapse and deformation.

[0006] To achieve the above-mentioned purpose, the utility model provides a steel pipe port diameter reduction and rounding device, comprising a shell, a hydraulic cylinder, a push plate and a tube reduction assembly, the hydraulic cylinder is installed inside the shell, the push plate is installed on the output end of the hydraulic cylinder, the tube reduction assembly is arranged on the push plate, and also includes a support assembly; the support assembly includes a rotating motor, a rotating seat, a moving seat, a spring, a rolling seat and a driving component, the rotating motor is connected to the pushing plate and is located inside the pushing plate, the rotating seat is rotatably connected to the pushing plate and is connected to the output end of the rotating motor and is located on one side of the pushing plate, the moving seat is slidably connected to the rotating seat and is arranged on the rotating seat, the spring is connected to the moving seat and is located inside the moving seat, the rolling seat is connected to the spring and is located at one end of the spring, and the driving component is arranged on the rotating seat and drives the moving seat to move.

[0007] Wherein, the support assembly further comprises an abutment seat, which is fixedly connected to the movable seat, located inside the movable seat, and sleeved on the spring.

[0008] Wherein, the rolling seat includes a seat body and a roller, the seat body is connected to the spring and is slidably connected to the movable seat and is located at one end of the spring; the roller is rotationally connected to the seat body and is arranged on the seat body.

[0009] Among them, the driving component includes an electric push rod, a driving rod and a rotating rod, the electric push rod is connected to the rotating seat and is located inside the rotating seat; the driving rod is slidably connected to the rotating seat and is connected to the output end of the electric push rod, and is located inside the rotating seat; the two ends of the rotating rod are respectively connected to the driving rod and the moving seat, and the rotating rod is arranged on the driving rod.

[0010] Wherein, the shrink tube assembly includes a driving seat, a lifting seat, a mounting plate and a die, the driving seat is fixedly connected to the pushing plate and is located on a side of the pushing plate close to the rotating seat; the mounting plate is fixedly connected to the outer shell and is arranged on the outer shell; the lifting seat is slidably connected to the driving seat and to the mounting plate, and is arranged on the mounting plate; the die is fixedly connected to the lifting seat and is located on one side of the lifting seat.

[0011] The utility model provides a device for reducing the diameter of a steel pipe port and rolling it into a round shape. When reducing the diameter of the steel pipe, one end of the steel pipe is inserted into the outer shell, and then the driving component is started to drive the moving seat to move, thereby driving the spring and the rolling seat to move, so that the rolling seat can abut against the inside of the steel pipe. At this time, the reducing process is performed through the pipe reducing component. During the pipe reducing process, the rotating motor is started to drive the rotating seat to rotate, thereby driving the rolling seat to rotate, so that the rolling seat can rotate along the inner wall of the steel pipe, thereby supporting the inner wall of the steel pipe and preventing the steel pipe from collapsing and deforming. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application 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.

[0013] Figure 1 It is a schematic diagram of the overall structure of a device for reducing the diameter of a steel pipe end and rolling it into a round shape according to the first embodiment of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the support assembly of the first embodiment of the utility model.

[0015] Figure 3 The first embodiment of the utility model Figure 2 Enlarged view of point A.

[0016] Figure 4 It is a schematic diagram of the installation structure of the die of the second embodiment of the utility model.

[0017] In the figure: 101-housing, 102-hydraulic cylinder, 103-pushing plate, 104-reduction tube assembly, 105-support assembly, 106-rotating motor, 107-rotating seat, 108-moving seat, 109-spring, 110-rolling seat, 111-driving member, 112-abutting seat, 113-seat body, 114-roller, 115-electric push rod, 116-driving rod, 117-rotating rod, 201-driving seat, 202-lifting seat, 203-mounting plate, 204-die. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] First embodiment:

[0020] See also Figures 1 to 3 ,in Figure 1 It is a schematic diagram of the overall structure of the steel pipe end diameter reduction and rounding device. Figure 2It is a schematic diagram of the structure of the support assembly. Figure 3 yes Figure 2 Enlarged view of point A.

[0021] The utility model provides a device for reducing the diameter of a steel pipe port and rolling it into a round shape, comprising a shell 101, a hydraulic cylinder 102, a push plate 103, a tube reduction assembly 104 and a support assembly 105, wherein the support assembly 105 comprises a rotating motor 106, a rotating seat 107, a movable seat 108, a spring 109, a rolling seat 110, a driving component 111 and an abutment seat 112, wherein the rolling seat 110 comprises a seat body 113 and a roller 114, and the driving component 111 comprises an electric push rod 115, a driving rod 116 and a rotating rod 117, wherein the rotating seat 107 is driven to rotate by the rotating motor 106, thereby driving a plurality of the rolling seats 110 to rotate, so that the plurality of rolling seats 110 support the inner wall of the steel pipe during tube reduction to avoid collapse and deformation of the steel pipe. It can be understood that the above scheme can be used to avoid collapse and deformation of the steel pipe, and can also be used to solve the problem of making the steel pipe into a round shape.

[0022] According to this specific embodiment, the hydraulic cylinder 102 is installed inside the housing 101, the push plate 103 is installed on the output end of the hydraulic cylinder 102, and the shrink tube assembly 104 is arranged on the push plate 103; the port of the steel pipe is reduced in diameter by the shrink tube assembly 104.

[0023] Among them, the rotating motor 106 is connected to the pushing plate 103 and is located inside the pushing plate 103. The rotating seat 107 is rotatably connected to the pushing plate 103 and is connected to the output end of the rotating motor 106 and is located on one side of the pushing plate 103. The moving seat 108 is slidably connected to the rotating seat 107 and is arranged on the rotating seat 107. The spring 109 is connected to the moving seat 108 and is located inside the moving seat 108. The rolling seat 110 is connected to the spring 109 and is located at one end of the spring 109. The driving member 111 is arranged on the rotating seat 107 and drives the moving seat 108 to move. A plurality of the moving seats 108 and the rolling seats 110 are arranged on the rotating seat 107. Two springs 109 are arranged inside the movable seat 108. Through the elasticity of the springs 109, the rolling seat 110 can move as the diameter of the steel pipe decreases. When the steel pipe is reduced in diameter, one end of the steel pipe is inserted into the shell 101, and then the driving component 111 is started to drive the movable seat 108 to move, thereby driving the spring 109 and the rolling seat 110 to move, so that the rolling seat 110 can abut the inner wall of the steel pipe. At this time, the reduction process is performed through the tube reduction component 104. During the tube reduction process, the rotating motor 106 is started to drive the rotating seat 107 to rotate, and then drive the rolling seat 110 to rotate, so that the rolling seat 110 can rotate along the inner wall of the steel pipe, thereby supporting the inner wall of the steel pipe and preventing the steel pipe from collapsing and deforming.

[0024] Secondly, the abutment seat 112 is fixedly connected to the movable seat 108, and is located inside the movable seat 108, and is sleeved on the spring 109; when the steel pipe is shrunk to the right position, the driving component 111 is started to drive the movable seat 108 to move, thereby driving the abutment seat 112 to move, so that the abutment seat 112 abuts against the rolling seat 110. At this time, the spring 109 is located inside the abutment seat 112. At this time, the rolling seat 110 is clamped between the inner wall of the steel pipe and the abutment seat 112, so that the rolling seat 110 cannot move. The rotating seat 107 and the rolling seat 110 are driven to rotate by the rotating motor 106, so that the rolling seat 110 rolls the steel pipe into a full circle, thereby improving the accuracy of the steel pipe port.

[0025] At the same time, the seat body 113 is connected to the spring 109, and is slidingly connected to the movable seat 108, and is located at one end of the spring 109; the roller 114 is rotatably connected to the seat body 113, and is arranged on the seat body 113; the roller 114 is in contact with the inner wall of the steel pipe, so as to support and complete the circle of the steel pipe, and at the same time, the friction between the rolling seat 110 and the inner wall of the steel pipe is reduced by the rotation of the roller 114.

[0026] In addition, the electric push rod 115 is connected to the rotating seat 107 and is located inside the rotating seat 107; the driving rod 116 is slidably connected to the rotating seat 107, and is connected to the output end of the electric push rod 115, and is located inside the rotating seat 107; the two ends of the rotating rod 117 are respectively connected to the driving rod 116 and the moving seat 108, and the rotating rod 117 is arranged on the driving rod 116; there are multiple rotating rods 117, and the number is consistent with the number of the moving seats 108. The driving rod 116 is driven to move by the electric push rod 115, so that the driving rod 116 drives the rotating rod 117 to move, and then the rotating rod 117 drives the moving seat 108 to move, thereby realizing the adjustment of the positions of the multiple moving seats 108, so that the rolling seat 110 can abut against the inner wall of the steel pipe when performing the pipe shrinking operation.

[0027] When the steel pipe port reduction and rounding device of the present embodiment is used, the steel pipe port is reduced in diameter by the tube reduction assembly 104. During the reduction process, force is applied to the rolling seat 110 by the plurality of springs 109, so that the rolling seat 110 can support the inner wall of the steel pipe. After the reduction is completed, the electric push rod 115 is started to drive the drive rod 116 to move, and the drive rod 116 drives the plurality of rotating rods 117 to move, thereby driving the plurality of moving seats 108 and the abutting seat 112 to move, so that the abutting seat 112 abuts against the rolling seat 110. At this time, the rolling seat 110 cannot move, and the rotating seat 107 and the moving seat 108 are driven to rotate by the rotating motor 106, thereby driving the plurality of rolling seats 110 to rotate, so that the rolling seat 110 can round the steel pipe, thereby avoiding the collapse and deformation of the steel pipe during tube reduction, and rounding the steel pipe at the same time.

[0028] Second embodiment:

[0029] Based on the first embodiment, please refer to Figure 4 , Figure 4 2 is a schematic diagram of the installation structure of the die of the second embodiment. The shrink tube assembly 104 of this embodiment includes a driving seat 201, a lifting seat 202, a mounting plate 203 and a die 204.

[0030] According to the present specific embodiment, the driving seat 201 is fixedly connected to the pushing plate 103 and is located on a side of the pushing plate 103 close to the rotating seat 107; the mounting plate 203 is fixedly connected to the housing 101 and is arranged on the housing 101; the lifting seat 202 is slidably connected to the driving seat 201 and is slidably connected to the mounting plate 203 and is arranged on the mounting plate 203; the pressing die 204 is fixedly connected to the lifting seat 202 and is located on a side of the lifting seat 202; the lifting seat 202 is fixedly connected to the pushing plate 103 and is located on a side of the lifting seat 202; the lifting seat 202 is fixedly connected to the pushing plate 103 and is arranged ...102; the lifting seat 202 is fixedly connected to the pushing plate 103 and is arranged on a side of the lifting seat 102; the lifting seat 202 is 02 slides with the mounting plate 203 and the driving seat 201 through a slide groove (not shown in the figure), and the shrink tube assembly 104 is provided with multiple, and the driving seat 201 and the lifting seat 202 are provided with mutually matching inclined surfaces. When the hydraulic cylinder 102 pushes the pushing plate 103 to move, the pushing plate 103 drives the driving seat 201 to move, and the driving seat 201 drives the lifting seat 202 to move, thereby driving the pressing die 204 to move, so that the multiple pressing dies 204 can extrude and compress the end of the steel pipe.

[0031] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A device for reducing the diameter of a steel pipe end and rolling it into a round shape, comprising a housing, a hydraulic cylinder, a push plate and a tube reduction assembly, wherein the hydraulic cylinder is installed inside the housing, the push plate is installed on the output end of the hydraulic cylinder, and the tube reduction assembly is arranged on the push plate, characterized in that: Also included is a support assembly; The supporting assembly includes a rotating motor, a rotating seat, a moving seat, a spring, a rolling seat and a driving member. The rotating motor is connected to the pushing plate and is located inside the pushing plate. The rotating seat is rotatably connected to the pushing plate and is connected to the output end of the rotating motor and is located on one side of the pushing plate. The moving seat is slidably connected to the rotating seat and is arranged on the rotating seat. The spring is connected to the moving seat and is located inside the moving seat. The rolling seat is connected to the spring and is located at one end of the spring. The driving member is arranged on the rotating seat and drives the moving seat to move.

2. The device for reducing the diameter of a steel pipe end and rolling it into a round shape according to claim 1, characterized in that: The supporting assembly also includes an abutment seat, which is fixedly connected to the moving seat, located inside the moving seat, and sleeved on the spring.

3. The device for reducing the diameter of a steel pipe end and rolling it into a round shape according to claim 2, characterized in that: The rolling seat comprises a seat body and a roller, wherein the seat body is connected to the spring and is slidably connected to the movable seat and is located at one end of the spring; the roller is rotationally connected to the seat body and is arranged on the seat body.

4. The device for reducing the diameter of a steel pipe end and rolling it into a round shape according to claim 1, characterized in that: The driving component includes an electric push rod, a driving rod and a rotating rod. The electric push rod is connected to the rotating seat and is located inside the rotating seat; the driving rod is slidably connected to the rotating seat and is connected to the output end of the electric push rod and is located inside the rotating seat; the two ends of the rotating rod are respectively connected to the driving rod and the moving seat, and the rotating rod is arranged on the driving rod.

5. The device for reducing the diameter of a steel pipe end and rolling it into a round shape according to claim 1, characterized in that: The shrink tube assembly includes a driving seat, a lifting seat, a mounting plate and a die, wherein the driving seat is fixedly connected to the pushing plate and is located on a side of the pushing plate close to the rotating seat; the mounting plate is fixedly connected to the outer shell and is arranged on the outer shell; the lifting seat is slidably connected to the driving seat and to the mounting plate and is arranged on the mounting plate; the die is fixedly connected to the lifting seat and is located on one side of the lifting seat.

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