Cold-drawing clamping device for large-diameter metal pipes

Abstract

The utility model provides a cold-drawing clamping device for large-diameter metal pipe, which comprises a workbench, a mounting seat is installed on the top of the workbench, a rotating shaft is installed on the right end side wall of the mounting seat, a circular plate is fixedly installed on the right end of the rotating shaft, a clamping assembly for clamping the metal pipe is installed on the outer wall of the circular plate, and a rotating assembly is installed on the side wall of the mounting seat. The cold-drawing clamping device for large-diameter metal pipe drives the gear to rotate through the output end of the motor, drives the annular disc to rotate through the gear ring, simultaneously drives the three sets of limiting rods to relatively move through the arc-shaped groove, drives the three sets of arc-shaped clamping plates to simultaneously contract through the limiting rods and the rectangular strip and the sliding block, so as to clamp the metal pipe, and when the output end of the motor reverses, the three sets of arc-shaped clamping plates simultaneously expand outward, so as to loosen the metal pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of cold drawing clamping devices, and in particular to a cold drawing clamping device for large-diameter metal pipes. Background Technology

[0002] Cold drawing refers to the process of directly drawing large-diameter pipes into smaller-diameter pipes using a drawing die. A cold drawing machine is a mechanical device used to reduce the diameter and wall thickness of pipes or to reduce the wall thickness and expand the diameter.

[0003] Existing cold-drawing clamping devices require manual adjustment of the clamping distance to limit the swaying of metal tubes of different sizes, which is a rather cumbersome process.

[0004] Therefore, it is necessary to provide a cold-drawing clamping device for large-diameter metal pipes to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a cold-drawing clamping device for large-diameter metal pipes, which solves the problem of needing to manually adjust the spacing of the clamping device continuously.

[0006] To solve the above-mentioned technical problems, the present invention provides a cold-drawing clamping device for large-diameter metal pipes, comprising: a workbench, a mounting base installed on the top of the workbench, a rotating shaft installed on the right side wall of the mounting base, a circular plate fixedly installed on the right end of the rotating shaft, a clamping assembly for clamping the metal pipe installed on the outer wall of the circular plate, a rotating assembly installed on the side wall of the mounting base, the rotating assembly being connected to the clamping assembly, the rotating assembly being used to control the operation of the clamping assembly, a rectangular groove II being provided on the top of the workbench, a horizontal moving assembly being installed inside the rectangular groove II, the horizontal moving assembly being connected to a support assembly for supporting the metal pipe, and the horizontal moving assembly being used to drive the support assembly to move.

[0007] Preferably, the clamping assembly includes an annular disk, which is rotatably connected to the outer wall of the left end of the circular plate. The annular disk has three sets of arc-shaped grooves evenly distributed on its side wall. The inner wall of the annular disk is connected to the rotating assembly. The circular plate has three sets of rectangular grooves evenly distributed through its left and right sides. The outer wall of the circular plate has three sets of sliding grooves evenly distributed. Each set of sliding grooves is connected to a rectangular groove. A slider is slidably connected to the inner wall of each set of sliding grooves. An arc-shaped clamping plate is installed on the outer right side of each set of sliders. A rectangular strip is installed on the top of each set of sliders. A limit rod is installed on the left side of each set of rectangular strips. The outer wall of the limit rod is in contact with the inner wall of the arc-shaped groove.

[0008] Preferably, the rotating assembly includes a motor, which is mounted on the outer wall of the mounting base. The output end of the motor passes through the mounting base and is equipped with a gear. A gear ring is mounted on the inner wall of the annular disk, and the gear meshes with the gear ring.

[0009] Preferably, the horizontal moving component includes a threaded rod, the left and right ends of which are rotatably mounted inside the rectangular groove, a threaded block is threadedly connected to the outer wall of the threaded rod, the right end of the threaded rod passes through the worktable, and a handle is installed at the right end of the threaded rod, and the top of the threaded block is connected to the support component.

[0010] Preferably, the support assembly includes an electric actuator mounted on top of the threaded block, and a support frame is mounted on the output end of the electric actuator.

[0011] Preferably, a control device is installed on the side wall of the mounting base, and the control device is electrically connected to the motor.

[0012] Compared with related technologies, the cold-drawing clamping device for large-diameter metal pipes provided by this utility model has the following advantages:

[0013] This invention provides a cold-drawing clamping device for large-diameter metal pipes. The output end of the motor drives the gear to rotate, which causes the gear ring to drive the annular disk to rotate. At the same time, the arc groove drives three sets of limiting rods to move relative to each other. The limiting rods drive the slider through the rectangular bar, causing the three sets of arc-shaped clamping plates to retract simultaneously and clamp the metal pipe. When the output end of the motor reverses, the three sets of arc-shaped clamping plates simultaneously expand outward, thereby releasing the metal pipe. The interaction of the above components can not only clamp the metal pipe with the arc-shaped clamping plates, but also extend the arc-shaped clamping plates into the interior of the metal pipe for support and restriction. At the same time, the symmetrical structure of the three sets of arc-shaped clamping plates simplifies the mechanical design and balances the clamping force in the circumferential direction, thus better clamping the metal pipe. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the cold drawing clamping device for large-diameter metal pipes provided by this utility model;

[0015] Figure 2 for Figure 1 The diagram shows the internal structure of the rectangular groove 2.

[0016] Figure 3 for Figure 1 The enlarged schematic diagram of part A shown below;

[0017] Figure 4 for Figure 2 The enlarged schematic diagram of part B is shown.

[0018] Numbered in the diagram: 1. Workbench, 2. Mounting base, 3. Control device, 4. Rotating assembly, 41. Motor, 42. Gear ring, 43. Gear, 5. Rotating shaft, 6. Clamping assembly, 61. Arc-shaped clamping plate, 62. Rectangular bar, 63. Limiting rod, 64. Arc-shaped groove, 65. Annular disc, 66. Slide groove, 67. Slider, 68. Rectangular groove one, 7. Circular plate, 8. Rectangular groove two, 9. Horizontal movement assembly, 91. Threaded rod, 92. Threaded block, 93. Handle, 10. Support assembly, 101. Electric actuator, 102. Support frame. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of a preferred embodiment of the cold drawing clamping device for large-diameter metal pipes provided by this utility model; Figure 2 for Figure 1 The diagram shows the internal structure of the rectangular groove 2. Figure 3 for Figure 1 The enlarged schematic diagram of part A shown below;

[0021] Figure 4 for Figure 2 The enlarged schematic diagram of part B is shown. The cold-drawing clamping device for large-diameter metal pipes includes: a workbench 1, a mounting base 2 mounted on the top of the workbench 1, a rotating shaft 5 mounted on the right side wall of the mounting base 2, a circular plate 7 fixedly mounted on the right end of the rotating shaft 5, a clamping assembly 6 for clamping the metal pipe mounted on the outer wall of the circular plate 7, a rotating assembly 4 mounted on the side wall of the mounting base 2, the rotating assembly 4 being connected to the clamping assembly 6, the rotating assembly 4 being used to control the operation of the clamping assembly 6, a rectangular groove 2 8 formed on the top of the workbench 1, a horizontal moving assembly 9 installed inside the rectangular groove 2 8, the horizontal moving assembly 9 being connected to a support assembly 10 for supporting the metal pipe, and the horizontal moving assembly 9 being used to drive the support assembly 10 to move.

[0022] The clamping assembly 6 includes an annular disk 65, which is rotatably connected to the outer wall of the left end of the circular plate 7. The annular disk 65 has three sets of arc-shaped grooves 64 evenly distributed on its side wall. The inner wall of the annular disk 65 is connected to the rotating assembly 4. The circular plate 7 has three sets of rectangular grooves 68 evenly distributed through its left and right sides. The outer wall of the circular plate 7 has three sets of sliding grooves 66 evenly distributed. Each set of sliding grooves 66 communicates with the rectangular grooves 68. A slider 67 is slidably connected to the inner wall of each set of sliding grooves 66. An arc-shaped clamping plate 61 is installed on the outer right side of each set of sliders 67. A rectangular strip 62 is installed on the top of each set of sliders 67. A limit rod 63 is installed on the left side of each set of rectangular strips 62. The outer wall of the limit rod 63 is in contact with the inner wall of the arc-shaped groove 64.

[0023] The rotating component 4 controls the rotation of the annular disk 65, which causes the arc groove 64 to move the three sets of limiting rods 63. The limiting rods 63 will drive the slider 67 through the rectangular bar 62, causing the three sets of arc clamps 61 to retract simultaneously and clamp the metal tube.

[0024] The rotating assembly 4 includes a motor 41, which is mounted on the outer wall of the mounting base 2. The output end of the motor 41 passes through the mounting base 2, and a gear 43 is mounted on the output end of the motor 41. A gear ring 42 is mounted on the inner wall of the annular disk 65, and the gear 43 meshes with the gear ring 42.

[0025] The output end of motor 41 drives gear 43 to rotate, which causes gear ring 42 to drive annular disk 65 to rotate. Correspondingly, the output end of motor 41 reverses, which allows limit rod 63 to drive slider 67 to move outward, thereby allowing the three sets of arc-shaped clamps 61 to open.

[0026] The horizontal moving component 9 includes a threaded rod 91, with its left and right ends rotatably mounted inside the rectangular slot 8. The outer wall of the threaded rod 91 is threadedly connected to a threaded block 92. The right end of the threaded rod 91 passes through the worktable 1, and a handle 93 is installed on the right end of the threaded rod 91. The top of the threaded block 92 is connected to the support component 10.

[0027] Turning the handle 93 will cause the threaded rod 91 to rotate, which will cause the threaded block 92 to move the support assembly 10 along the rectangular groove 8.

[0028] The support assembly 10 includes an electric actuator 101, which is mounted on the top of the threaded block 92, and a support frame 102 is mounted on the output end of the electric actuator 101.

[0029] The support frame 102 is V-shaped to facilitate support of the bottom of metal tubes of different sizes. The electric actuator 101 can push the support frame 102 to support the bottom of the metal tube.

[0030] A control device 3 is installed on the side wall of the mounting base 2. The control device 3 is electrically connected to the motor 41 and is a PLC controller.

[0031] The working principle of the cold drawing clamping device for large-diameter metal pipes provided by this utility model is as follows: After the metal pipe to be processed is placed at the clamping component 6, the clamping component 6 is controlled by the rotating component 4 to clamp the metal pipe. Then, the horizontal moving component 9 drives the supporting component 10 to move to the bottom of the metal pipe. Then, the supporting component 10 supports the bottom of the metal pipe, thereby improving the stability of the metal pipe during processing.

[0032] Compared with related technologies, the cold-drawing clamping device for large-diameter metal pipes provided by this utility model has the following advantages:

[0033] The output end of motor 41 drives gear 43 to rotate, which causes gear ring 42 to drive annular disk 65 to rotate. At the same time, arc groove 64 drives three sets of limiting rods 63 to move relative to each other. The limiting rods 63 drive slider 67 through rectangular bar 62, causing the three sets of arc clamping plates 61 to retract simultaneously and clamp the metal tube. When the output end of motor 41 reverses, the three sets of arc clamping plates 61 simultaneously expand outward, thereby releasing the metal tube. The interaction of the above components can not only clamp the metal tube with arc clamping plates 61, but also extend the arc clamping plates 61 into the interior of the metal tube for support and restriction. At the same time, the symmetrical structure of the three sets of arc clamping plates 61 simplifies the mechanical design and balances the clamping force in the circumferential direction, thus better clamping the metal tube.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cold-drawing clamping device for large-diameter metal pipes, characterized in that, include: The workbench has a mounting base on its top. A rotating shaft is mounted on the right side wall of the mounting base. A circular plate is fixedly mounted on the right end of the rotating shaft. A clamping assembly for clamping metal tubes is mounted on the outer wall of the circular plate. A rotating assembly is mounted on the side wall of the mounting base. The rotating assembly is connected to the clamping assembly and is used to control the operation of the clamping assembly. A rectangular groove is formed on the top of the workbench. A horizontal moving assembly is installed inside the rectangular groove. The horizontal moving assembly is connected to a support assembly for supporting metal tubes and is used to drive the support assembly to move.

2. The cold-drawing clamping device for large-diameter metal pipes according to claim 1, characterized in that, The clamping assembly includes an annular disk rotatably connected to the outer wall of the left end of a circular plate. Three sets of arc-shaped grooves are evenly distributed on the side wall of the annular disk. The inner wall of the annular disk is connected to a rotating assembly. Three sets of rectangular grooves are evenly distributed through the left and right sides of the circular plate. Three sets of sliding grooves are evenly distributed on the outer wall of the circular plate. Each set of sliding grooves communicates with a rectangular groove. A slider is slidably connected to the inner wall of each set of sliding grooves. An arc-shaped clamping plate is installed on the outer right side of each set of sliders. A rectangular strip is installed at the top of each set of sliders. A limit rod is installed on the left side of each set of rectangular strips. The outer wall of the limit rod is in contact with the inner wall of the arc-shaped groove.

3. The cold-drawing clamping device for large-diameter metal pipes according to claim 2, characterized in that, The rotating assembly includes a motor, which is mounted on the outer wall of the mounting base. The output end of the motor passes through the mounting base and is equipped with a gear. A gear ring is mounted on the inner wall of the annular disk, and the gear meshes with the gear ring.

4. The cold-drawing clamping device for large-diameter metal pipes according to claim 1, characterized in that, The horizontal moving component includes a threaded rod, the left and right ends of which are rotatably mounted inside the rectangular groove. A threaded block is threadedly connected to the outer wall of the threaded rod. The right end of the threaded rod passes through the worktable and a handle is installed at the right end of the threaded rod. The top of the threaded block is connected to the support component.

5. The cold-drawing clamping device for large-diameter metal pipes according to claim 4, characterized in that, The support assembly includes an electric actuator mounted on top of the threaded block, and a support frame is mounted on the output end of the electric actuator.

6. The cold-drawing clamping device for large-diameter metal pipes according to claim 3, characterized in that, A control device is installed on the side wall of the mounting base, and the control device is electrically connected to the motor.

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