Clamping device for thermal insulation pipe production

Abstract

The utility model discloses a clamping device for thermal insulation pipe production, which relates to the field of inner clamping devices and comprises a bottom plate, the top end of the bottom plate is connected with a hydraulic cylinder, the output end of the hydraulic cylinder is connected with a connecting shell, the inner wall of the connecting shell is provided with a driving mechanism, and the driving mechanism is used for driving a moving rod to move axially. The inner wall of the moving rod is rotationally connected with a rotating rod through a bearing, one end of the rotating rod and one end of the moving rod are connected with an inner clamping mechanism, and one end of the rotating rod is provided with a power mechanism for driving the inner clamping mechanism to act; the moving rod moving in the axial direction is used for driving the inner clamping mechanism to move to the inner wall of the pipe fitting. And the inner clamping mechanism is used for fixedly clamping the inner wall of the pipe fitting. Through the arrangement of the inner clamping assembly, the inner wall of the pipe fitting can be internally clamped, meanwhile, the pipe fitting inner clamping device can adapt to pipe fittings with different diameters, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the field of internal clamping devices, in particular to a clamping device for producing thermal insulation pipes. Background Art

[0002] There are many types of insulated pipes, one of which is polyurethane insulated pipe, which is composed of pipe fittings and polyurethane insulation material coated on the surface of the pipe fittings.

[0003] In the production process, pipe fittings need to be continuously transferred so that they can reach different processes. Pipe fittings are generally stacked on stacking racks. When taking the stacked pipe fittings, a clamping and grabbing method is generally adopted. However, in the prior art, the outer wall and both ends of the pipe fittings are generally clamped and grabbed, and the diameter of the pipe fittings may change at any time according to the order, so the scope of application is insufficient. Utility Model Content

[0004] The purpose of the utility model is to provide a clamping device for producing thermal insulation pipes in order to solve the problems in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping device for the production of thermal insulation pipes, comprising a bottom plate, a hydraulic cylinder connected to the top of the bottom plate, a connecting shell connected to the output end of the hydraulic cylinder, a driving mechanism installed on the inner wall of the connecting shell, the driving mechanism is used to drive the moving rod to move axially, the inner wall of the moving rod is rotatably connected to a rotating rod through a bearing, the rotating rod and one end of the moving rod are connected to an inner clamping mechanism, and one end of the rotating rod is installed with a power mechanism for driving the inner clamping mechanism to move;

[0006] The axially movable moving rod is used to drive the inner clamping mechanism to move to the inner wall of the pipe;

[0007] The inner clamping mechanism is used to fix and clamp the inner wall of the pipe.

[0008] As a further solution of the utility model: the driving mechanism includes two mounting plates fixedly connected to the inner wall of the connecting shell, a second forward and reverse motor is mounted on the outer end surface of one of the mounting plates, the output end of the second forward and reverse motor passes through the mounting plate and is connected to a worm, and the output shaft of the second forward and reverse motor is rotatably connected to the mounting plate through a bearing;

[0009] A worm wheel is meshed on the outer periphery of the worm, and the worm wheel is coaxially connected to a gear through a connecting shaft. A rack is meshed on the gear, and the rack is integrally formed at the bottom end of the moving rod.

[0010] As a further solution of the utility model: the power mechanism includes a driven gear connected to one end of the rotating rod, a driving gear is meshed on the outer periphery of the driven gear, a fixed frame is installed on the outer wall of the movable rod, a No. 1 forward and reverse motor is installed on the end face of the fixed frame, the output end of the No. 1 forward and reverse motor passes through the fixed frame and is connected to the driving gear through a coupling, and the output shaft of the No. 1 forward and reverse motor is rotatably connected to the fixed frame through a bearing.

[0011] As a further solution of the utility model: the inner clamping mechanism includes a rotating plate connected to the other end of the rotating rod, and a plurality of arc grooves are opened in the inner circumference of the rotating plate.

[0012] As a further solution of the utility model: the inner clamping mechanism further comprises a fixing plate fixedly connected to one end of the moving rod, and a plurality of straight grooves are formed in the inner circumference of the fixing plate;

[0013] The straight groove and the inner wall of the arc groove are movably connected with a sliding shaft, and one end of the sliding shaft is fixedly connected with a pressing plate.

[0014] As a further solution of the utility model: the outer wall of one of the sliding shafts is formed with two limit blocks, and the two limit blocks are respectively in contact with one end surface of the rotating plate and the fixed plate that are away from each other.

[0015] As a further solution of the utility model: a sliding plate is integrally formed on the outer periphery top of the moving rod, a sliding groove for the sliding plate to slide is provided on the top of the inner wall of the connecting shell, and the sliding groove and the sliding position between the sliding plate and the sliding groove are both "convex" structures.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. By setting the inner clamping component, the inner wall of the pipe can be clamped, and it can adapt to pipes of different diameters and has a wider range of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the connection between the driving mechanism and the moving rod of the utility model;

[0020] Figure 3 It is a schematic diagram of the internal structure of the inner clamping mechanism of the utility model.

[0021] In the figure: 1. bottom plate; 2. hydraulic cylinder; 3. connecting shell; 4. moving rod; 5. sliding plate; 6. sliding groove; 7. rack; 8. rotating rod; 9. rotating plate; 10. fixed plate; 11. driven gear; 12. driving gear; 13. No. 1 forward and reverse motor; 14. straight groove; 15. pressure plate; 16. No. 2 forward and reverse motor; 17. worm; 18. worm wheel; 19. gear; 20. sliding shaft; 21. limit block; 22. arc groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments 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 to Figure 3 In an embodiment of the utility model, a clamping device for producing an insulation pipe includes a base plate 1, a hydraulic cylinder 2 is connected to the top of the base plate 1, a connecting shell 3 is connected to the output end of the hydraulic cylinder 2, a driving mechanism is installed on the inner wall of the connecting shell 3, and the driving mechanism is used to drive the moving rod 4 to move axially. The inner wall of the moving rod 4 is rotatably connected to a rotating rod 8 through a bearing. The rotating rod 8 and one end of the moving rod 4 are connected to an inner clamping mechanism, and one end of the rotating rod 8 is installed with a power mechanism for driving the inner clamping mechanism to move; the axially moving moving rod 4 is used to drive the inner clamping mechanism to move to the inner wall of the pipe fitting; the inner clamping mechanism is used to fix and clamp the inner wall of the pipe fitting.

[0024] In this embodiment: firstly, screw holes are opened at the four corners of the bottom plate 1, and then the bottom plate 1 is connected to a movable vehicle body (such as a cart) through the screw holes and bolts, and a corresponding power supply mechanism and a control mechanism are installed on the movable vehicle body, and the power supply mechanism and the control mechanism are connected to the device;

[0025] The device is moved by moving the vehicle body. When the device moves to a plurality of stacked pipes, the control mechanism (such as a hydraulic pump and its controller) is used to control the hydraulic cylinder 2 to perform lifting and lowering actions. The hydraulic cylinder 2 drives the driving mechanism, the moving rod 4, the power mechanism and the inner clamping mechanism to perform lifting and lowering actions synchronously through the connection shell 3 until the inner clamping mechanism is aligned with the opening of one end of the pipe stacked at the top. Then the driving mechanism is started. The driving mechanism drives the moving rod 4, the rotating rod 8, the inner clamping mechanism and the power mechanism to move synchronously toward the inner cavity of the pipe until the inner clamping mechanism moves to a suitable depth. At this time, the power mechanism is controlled to act. The power mechanism drives the inner clamping mechanism to expand through the rotating rod 8 to achieve internal clamping of the inner wall of the pipe, and then the transfer can be achieved.

[0026] Please refer to Figure 2 The driving mechanism includes two mounting plates fixedly connected to the inner wall of the connecting shell 3, a No. 2 forward and reverse motor 16 is installed on the outer end surface of one mounting plate, the output end of the No. 2 forward and reverse motor 16 passes through the mounting plate and is connected to a worm 17, and the output shaft of the No. 2 forward and reverse motor 16 is rotatably connected to the mounting plate through a bearing; a worm wheel 18 is meshed on the upper periphery of the worm 17, and the worm wheel 18 is coaxially connected to a gear 19 through a connecting shaft, and a rack 7 is meshed on the upper side of the gear 19, and the rack 7 is integrally formed at the bottom end of the moving rod 4.

[0027] In this embodiment: by starting the second forward and reverse motor 16, the second forward and reverse motor 16 drives the worm 17 to rotate, the worm 17 drives the worm wheel 18 to rotate, and the worm wheel 18 drives the gear 19 to rotate through the connecting shaft. It should be noted that: the connecting shaft is rotatably connected to the connecting housing 3 through a bearing;

[0028] The rotation of the gear 19 drives the moving rod 4 forward or backward through the rack 7, thereby driving the inner clamping mechanism to move toward the inner cavity of the pipe fitting or driving the inner clamping mechanism to move outward from the inner cavity of the pipe fitting.

[0029] Please refer to Figure 1 and Figure 2 The power mechanism includes a driven gear 11 connected to one end of the rotating rod 8, a driving gear 12 is meshed on the outer periphery of the driven gear 11, a fixed frame is installed on the outer wall of the moving rod 4, and a No. 1 forward and reverse motor 13 is installed on the end face of the fixed frame. The output end of the No. 1 forward and reverse motor 13 passes through the fixed frame and is connected to the driving gear 12 through a coupling, and the output shaft of the No. 1 forward and reverse motor 13 is rotatably connected to the fixed frame through a bearing.

[0030] In this embodiment: after the inner clamping mechanism moves to a suitable position, by starting the No. 1 forward and reverse motor 13, the No. 1 forward and reverse motor 13 drives the driving gear 12 to rotate, the driving gear 12 drives the driven gear 11 to rotate, and the driven gear 11 drives the rotating rod 8 to rotate. Since the rotating rod 8 is rotatably connected to the inner cavity of the moving rod 4 through the bearing, the bearing has been installed by interference fitting, so when the moving rod 4 moves back and forth, it will drive the rotating rod 8 to move synchronously.

[0031] Please refer to Figure 3 The internal clamping mechanism includes a rotating plate 9 connected to the other end of the rotating rod 8, and a plurality of arc grooves 22 are opened in the inner circumference of the rotating plate 9. The internal clamping mechanism also includes a fixed plate 10 fixedly connected to one end of the moving rod 4, and a plurality of straight grooves 14 are opened in the inner circumference of the fixed plate 10; the straight groove 14 and the inner wall of the arc groove 22 are movably connected with a sliding shaft 20, and one end of the sliding shaft 20 is fixedly connected with a pressure plate 15.

[0032] In this embodiment, when the rotating rod 8 rotates, the rotating rod 8 drives the rotating plate 9 to rotate, and the rotating plate 9 drives the multiple arc grooves 22 inside it to rotate synchronously, and the rotating arc grooves 22 squeeze the sliding shaft 20, and the sliding shaft 20 moves along the straight groove 14. The effect of synchronous movement of multiple sliding shafts 20 is achieved, and the sliding shafts 20 that move outward synchronously drive the pressing plate 15 to clamp the inner wall of the pipe fitting, and the sliding shafts 20 that move inward synchronously adjust the pressing plate 15 to cancel the clamping of the inner wall of the pipe fitting.

[0033] Please refer to Figure 3 Two limit blocks 21 are formed on the outer wall of a sliding shaft 20, and the two limit blocks 21 are respectively in contact with the end surfaces of the rotating plate 9 and the fixed plate 10 that are away from each other.

[0034] In this embodiment, the two limit blocks 21 can limit the position of the sliding shaft 20 to prevent the sliding shaft 20 from being separated from the straight groove 14 and the arc groove 22.

[0035] Please refer to Figure 1 A sliding plate 5 is integrally formed at the top of the outer periphery of the moving rod 4, and a sliding groove 6 for sliding the sliding plate 5 is provided at the top of the inner wall connected to the outer shell 3, and the sliding groove 6 and the sliding position between the sliding plate 5 and the sliding groove 6 are both "convex" structures.

[0036] In this embodiment, when the moving rod 4 moves, the moving rod 4 drives the sliding plate 5 to move along the sliding groove 6 , and the sliding plate 5 and the sliding groove 6 limit the movement of the moving rod 4 .

[0037] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping device for producing thermal insulation pipes, comprising a bottom plate (1), the top end of the bottom plate (1) being connected to a hydraulic cylinder (2), the output end of the hydraulic cylinder (2) being connected to a connecting shell (3), characterized in that: The inner wall of the connecting shell (3) is provided with a driving mechanism, the driving mechanism is used to drive the moving rod (4) to move axially, the inner wall of the moving rod (4) is rotatably connected to a rotating rod (8) via a bearing, the rotating rod (8) and one end of the moving rod (4) are connected to an inner clamping mechanism, and one end of the rotating rod (8) is provided with a power mechanism for driving the inner clamping mechanism to move; The axially movable moving rod (4) is used to drive the inner clamping mechanism to move to the inner wall of the pipe; The inner clamping mechanism is used to fix and clamp the inner wall of the pipe.

2. A clamping device for producing thermal insulation pipes according to claim 1, characterized in that: The driving mechanism comprises two mounting plates fixedly connected to the inner wall of the connecting shell (3); a second forward and reverse motor (16) is mounted on the outer end surface of one of the mounting plates; the output end of the second forward and reverse motor (16) passes through the mounting plate and is connected to a worm (17); the output shaft of the second forward and reverse motor (16) is rotatably connected to the mounting plate via a bearing; A worm wheel (18) is meshed above the outer periphery of the worm (17), and the worm wheel (18) is coaxially connected to a gear (19) via a connecting shaft. A rack (7) is meshed above the gear (19), and the rack (7) is integrally formed at the bottom end of the moving rod (4).

3. A clamping device for producing thermal insulation pipes according to claim 2, characterized in that: The power mechanism comprises a driven gear (11) connected to one end of the rotating rod (8), a driving gear (12) meshing on the outer periphery of the driven gear (11), a fixing frame is installed on the outer wall of the moving rod (4), a first forward and reverse motor (13) is installed on the end surface of the fixing frame, an output end of the first forward and reverse motor (13) passes through the fixing frame and is connected to the driving gear (12) through a coupling, and an output shaft of the first forward and reverse motor (13) is rotatably connected to the fixing frame through a bearing.

4. A clamping device for producing thermal insulation pipes according to claim 3, characterized in that: The inner clamping mechanism comprises a rotating plate (9) connected to the other end of the rotating rod (8), and a plurality of arc-shaped grooves (22) are formed in the inner circumference of the rotating plate (9).

5. A clamping device for producing thermal insulation pipes according to claim 4, characterized in that: The inner clamping mechanism further comprises a fixing plate (10) fixedly connected to one end of the moving rod (4), and a plurality of straight grooves (14) are formed in the inner circumference of the fixing plate (10); The straight groove (14) and the inner wall of the arc groove (22) are movably connected with a sliding shaft (20), and one end of the sliding shaft (20) is fixedly connected with a pressing plate (15).

6. A clamping device for producing thermal insulation pipes according to claim 5, characterized in that: Two limit blocks (21) are formed on the outer wall of one of the sliding shafts (20), and the two limit blocks (21) are respectively in contact with one end surface of the rotating plate (9) and the fixed plate (10) that are away from each other.

7. A clamping device for producing thermal insulation pipes according to claim 2, characterized in that: A sliding plate (5) is integrally formed on the top of the outer periphery of the moving rod (4), and a sliding groove (6) for the sliding plate (5) to slide is provided on the top of the inner wall of the connecting shell (3), and the sliding groove (6) and the sliding position between the sliding plate (5) and the sliding groove (6) are both "convex" structures.

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