Portable pipe orifice shaping device for pipeline

Abstract

The utility model discloses a portable pipe orifice shaping device of a pipeline, which comprises an L-shaped mounting rack, an electric cylinder, a forming top die and a pneumatic clamp, and a cavity rack is fixedly arranged at one end of the L-shaped mounting rack; the electric cylinder can drive the push rod to do reciprocating rectilinear motion through the rotary motion of the motor; the forming top die is fixedly arranged at the front end of a push rod of the electric cylinder; the push rod can drive the forming top die to move synchronously while moving; a groove matched with the protruding shoulder is formed in the front end face of the forming top die. The pneumatic clamp is fixedly arranged in front of the push rod; and a clamp disc of the pneumatic clamp is fixedly arranged on the cavity rack. The pipe orifice shaping device can realize pipe orifice shaping of the pipeline on a ship, so that the connection operation of the pipeline can be realized on the ship, and the installation efficiency of the ship hydraulic pipeline can be greatly improved.

Description

Technical Field

[0001] This utility model relates to a marine machining equipment, specifically a portable pipe end shaping device. Background Technology

[0002] Currently, welding is the most common method for connecting pipelines. The advantages of welding are high reliability and long service life. However, welding involves numerous procedures and strict requirements. Connecting pipelines made of special materials requires specialized equipment and auxiliary materials. Furthermore, welding is inefficient, consumes a lot of energy, generates significant pollution, poses numerous safety hazards, and can harm human health. These drawbacks mean that welding is no longer adequate for the demands of modern society, especially given the growing international emphasis on human health and safety, environmental protection, and energy conservation.

[0003] Developing non-welding connection methods for pipe connections is a continuous area of ​​research and development within the industry. One common non-welding pipe connection method utilizes pipe end forming connections; specifically, for example... Figure 1 As shown, a shoulder is formed at the end of the pipe to be connected; the distance between the shoulder and the pipe end is H; the shoulder is composed of a first shoulder cone surface a and a second shoulder cone surface b arranged opposite to each other; since the local strength of the shoulder is higher than that of the pipe, the connection is very reliable and will not be pulled out even in the extreme case of pipe bursting.

[0004] Currently, the end shoulder structure of the pipeline is processed using a hydroforming machine. The specific connection method is as follows: first, the shoulder is formed at the end of the pipeline on land using a hydroforming machine; then, the pipeline with the shoulder is transported to the ship; finally, the two sections of pipeline are fixedly installed as one unit. This is because existing hydroforming machines are relatively large and inconvenient to use on ships.

[0005] To achieve multi-functionality in ships, a large number of hydraulic piping systems need to be installed. With the increasing tonnage of ships, the hydraulic piping systems used on ships are becoming increasingly complex, resulting in a greater workload for pipe installation. Currently, the method of machining shoulders using a hydraulic forming machine leads to low installation efficiency. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a portable pipe end forming device that can realize the pipe end forming of hydraulic pipes on ships.

[0007] To solve the above-mentioned technical problems, the technical solution of the portable pipe end shaping device of this utility model is as follows:

[0008] The device includes an L-shaped mounting frame 6, an electric cylinder 5, a forming top mold 2, and a pneumatic clamp 1. A cavity frame 3 is fixedly mounted at one end of the L-shaped mounting frame 6. The cavity frame 3 and the side plates of the L-shaped mounting frame 6 form the frame of the molding device. The cavity frame 3 has a cavity. The electric cylinder 5 can drive the push rod 51 to perform reciprocating linear motion through the rotation of its motor. The cylinder body of the electric cylinder 5 is fixedly connected to the side plate of the L-shaped mounting frame 6, and the cylinder body of the electric cylinder 5 is fixedly connected to the bottom plate of the L-shaped mounting frame 6 through a mounting support frame 4. The forming top mold 2 is fixedly mounted at the front end of the push rod 51 of the electric cylinder 5. The push rod 51 can drive the forming top mold 2 to move synchronously while moving. The front end face of the forming top mold 2 has a groove 21 that matches the shoulder. The pneumatic clamp 1 is fixedly mounted in front of the push rod 51. The clamping plate of the pneumatic clamp 1 is fixedly mounted on the cavity frame 3.

[0009] In another embodiment, the front end face of the groove 21 forms a second conical surface 211; the second conical surface 211 matches the second shoulder conical surface b of the shoulder of the pipe to be connected; the clamping hole 132 formed by the opposite ends of the plurality of clamping heads 13 of the pneumatic clamp matches the outer diameter of the pipe to be connected; the rear end face of the clamping hole 132 forms a first conical surface 131; the first conical surface 131 matches the first shoulder conical surface a of the shoulder of the pipe to be connected.

[0010] In another embodiment, the pneumatic clamp 1 includes a clamping disk with a plurality of clamping heads 13 arranged circumferentially on the clamping disk; the clamping heads 13 are movably connected to the clamping disk; the clamping heads 13 are connected to the air source inlet pipeline 11 and the air source outlet pipeline 12.

[0011] In another embodiment, the clamping disc of the pneumatic clamp 1 is threadedly connected to the cavity frame 3.

[0012] In another embodiment, the front end of the cavity is formed with an internal thread, and the rear end of the clamping disc of the pneumatic clamp 1 is formed with an external thread; the rear end of the clamping disc extends into the cavity of the cavity frame 3 to achieve a fixed connection between the pneumatic clamp 1 and the cavity frame 3.

[0013] In another embodiment, the depth of the groove 21 on the front end face of the forming top mold 2 is matched with the distance H between the shoulder to be formed and the tube end.

[0014] In another embodiment, the depth of the groove 21 on the front end face of the forming top mold 2 is not greater than the radius of the pipe to be connected.

[0015] In another embodiment, the forming top mold 2 is threadedly connected to the push rod 51.

[0016] In another embodiment, the forming top mold 2 has a push rod connecting threaded hole 22; the push rod connecting threaded hole 22 matches the front end of the push rod 51.

[0017] In another embodiment, the side plates and bottom plate of the L-shaped mounting frame 6 are arranged perpendicularly to form the L-shaped structure.

[0018] The technical effects that this utility model can achieve are:

[0019] This invention enables pipe end shaping on ships, allowing pipe connection operations to be performed on board, thereby greatly improving the installation efficiency of ship hydraulic pipelines. Attached Figure Description

[0020] Those skilled in the art will understand that the following description is merely illustrative of the principles of this invention, and these principles can be applied in various ways to achieve many different alternative implementations. These descriptions are only intended to illustrate the general principles of the teachings of this invention and are not intended to limit the inventive concept disclosed herein.

[0021] Embodiments of the present invention are illustrated in conjunction with the accompanying drawings, which are incorporated in and form part of this specification, and together with the foregoing general description and the following detailed description of the drawings, serve to explain the principles of the present invention.

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0023] Figure 1 This is a schematic diagram of the end of a pipe with a shoulder.

[0024] Figure 2 This is a schematic diagram of the portable pipe end shaping device of this utility model.

[0025] Figure 3 This is a schematic diagram of the present invention from another angle;

[0026] Figure 4 This is a three-dimensional schematic diagram of the present invention;

[0027] Figure 5 This is a partially enlarged schematic diagram of the clamping head and the forming top mold of this utility model;

[0028] Figure 6 This is a schematic diagram of the pipe clamping device of this utility model;

[0029] Figure 7 This is a partially enlarged schematic diagram of the pipe clamping mechanism of this utility model.

[0030] Explanation of the reference numerals in the figure:

[0031] 1 is a pneumatic clamp, 2 is a forming top mold.

[0032] 3 is the cavity molding machine frame, and 4 is the mounting support frame.

[0033] 5 is an electric cylinder, and 6 is an L-shaped mounting frame.

[0034] 11 is the gas source inlet pipeline, and 12 is the gas source outlet pipeline.

[0035] 13 is the clamping head, 51 is the push rod.

[0036] 131 is the first conical surface, and 132 is the clamping hole.

[0037] 21 is a groove, and 22 is a threaded hole for connecting the push rod.

[0038] 211 is the second cone surface.

[0039] a is the first convex conical surface, and b is the second convex conical surface.

[0040] 10 is the plasticized pipe. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this utility model pertains. The terms "first," "second," and similar words used herein do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Words such as "comprising" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, but does not exclude other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0042] like Figures 2 to 4 As shown, the portable pipe end shaping device of this utility model includes an electric cylinder 5. The electric cylinder 5 drives the push rod 51 to move linearly relative to the cylinder body through the rotational motion of its motor, thereby realizing the reciprocating linear motion of the push rod 51.

[0043] The cylinder body of the electric cylinder 5 is fixedly connected to the side plate of the L-shaped mounting frame 6; the cylinder body of the electric cylinder 5 is fixedly connected to the bottom plate of the L-shaped mounting frame 6 through the mounting support frame 4; the side plate and the bottom plate of the L-shaped mounting frame 6 are set perpendicularly to each other to form an L-shaped structure.

[0044] The front end of the push rod 51 of the electric cylinder 5 is fixedly sleeved with the forming top mold 2; the push rod 51 can drive the forming top mold 2 to move synchronously while moving back and forth.

[0045] like Figure 5 As shown, the forming top mold 2 has a push rod connecting threaded hole 22; the push rod connecting threaded hole 22 matches the front end of the push rod 51; the front end of the push rod 51 is connected to the forming top mold 2 by thread to facilitate the disassembly and installation of the forming top mold 2, so that different sizes of forming top mold 2 can be replaced according to pipes of different diameters.

[0046] The front end face of the forming mold 2 is formed with a groove 21 that matches the shoulder, and the depth of the groove 21 matches the distance H between the shoulder and the pipe end; the front end face of the groove 21 forms a second cone surface 211; the second cone surface 211 matches the second shoulder cone surface b of the shoulder of the pipe to be connected.

[0047] Preferably, the depth of the groove 21 is not greater than the radius of the pipe to be connected;

[0048] A pneumatic clamp 1 is fixedly installed in front of the push rod 51 of the electric cylinder 5;

[0049] Specifically, the pneumatic clamp 1 includes a clamping plate, on which a plurality of clamping heads 13 are arranged circumferentially; the clamping heads 13 are movably connected to the clamping plate; the clamping heads 13 are connected to the air source inlet pipeline 11 and the air source outlet pipeline 12; by means of an external air source, the clamping heads 13 can be driven to move radially along the clamping plate, so that the opposite ends of the plurality of clamping heads 13 move closer or further away from each other, thereby the pneumatic clamp clamping or releasing the pipe 10 to be shaped.

[0050] like Figure 5 As shown, the opposite ends of the plurality of clamping heads 13 have clamping surfaces; when the opposite ends of the plurality of clamping heads 13 approach each other, each opposite end forms a clamping hole 132, and the clamping hole 132 matches the outer diameter of the pipe to be connected.

[0051] The rear end face of the clamping hole 132 forms a first conical surface 131; the first conical surface 131 matches the first shoulder conical surface a of the shoulder of the pipe to be connected;

[0052] The clamping plate of the pneumatic clamp 1 is fixedly mounted on the cavity frame 3;

[0053] Preferably, the clamping plate of the pneumatic clamp 1 is connected to the cavity frame 3 by a thread; the cavity frame 3 has a cavity, which serves as a working cavity for accommodating the push rod 51 and the forming top mold 2 fixedly connected to the push rod 51. Under the driving action of the electric cylinder 5, the push rod 51 and the forming top mold 2 can move back and forth relative to the pneumatic clamp 1 within the cavity of the cavity frame 3.

[0054] Specifically, the front end of the cavity has an internal thread; the rear end of the clamping disc has an external thread; the rear end of the clamping disc extends into the cavity of the cavity frame 3, thereby achieving a fixed connection between the pneumatic clamping device 1 and the cavity frame 3.

[0055] The cavity frame 3 is fixedly installed at one end of the L-shaped mounting frame 6; the side plates of the cavity frame 3 and the L-shaped mounting frame 6 form the frame of the molding device, so that the molding device has sufficient rigidity and can be moved freely.

[0056] The electric cylinder 5 of this invention has an L-shaped mounting frame 6 connected to both its bottom and side, thus enabling portable and fixed installation of the electric cylinder 5. In use, this invention can be moved to the pipe to be connected as needed, thereby shaping the pipe opening.

[0057] The working principle of this utility model is as follows:

[0058] like Figure 6 , Figure 7 As shown, the pipe 10 to be shaped is clamped and fixed by the pneumatic clamp 1, and the end of the pipe 10 to be shaped is located in the cavity; the length of the end of the pipe 10 to be shaped extending out of the pneumatic clamp 1 is greater than the depth of the groove 21 on the front end face of the forming mold 2.

[0059] Drive the electric cylinder 5 to move the push rod 51 forward; the push rod 51 drives the forming top mold 2 at its front end to move forward in the cavity; since the pneumatic clamp 1 and the pipe 10 it holds are fixed, the forming top mold 2 gradually approaches the pneumatic clamp 1 and the pipe 10 it holds as it moves forward.

[0060] As the forming mold 2 moves forward under the drive of the electric cylinder 5, the end of the pipe 1 to be shaped held by the pneumatic clamp 1 gradually enters the groove 21 on the front face of the forming mold 2; when the end face of the pipe 1 contacts the bottom surface of the groove 21, the forming mold 2 has not yet contacted the pneumatic clamp 1, so the forming mold 2 can continue to move forward.

[0061] As the forming die 2 continues to move forward until it contacts the clamping plate (or clamping head 13) of the pneumatic clamp 1, the forming die 2 squeezes the end of the pipe 1 to be shaped, and the pipe fills the groove 21 of the forming die 2, causing the end of the pipe 1 to be shaped to undergo plastic deformation; since the rear end face of the clamping head 13 has a first conical surface 131 and the front end face of the groove 21 has a second conical surface 211, the pipe 1 fills the space formed by the first conical surface 131 and the space formed by the second conical surface 211 during the plastic deformation process, thereby forming the first shoulder conical surface a and the second shoulder conical surface b.

[0062] The reverse-drive electric cylinder 5 causes the push rod 51 and the forming top mold 2 to move backward, thereby achieving demolding and completing the shaping of the tube end.

[0063] Since the formed shoulder is only used for pipe connection, the precision of the shoulder is not high. It is sufficient to form a protrusion at one end of the pipe. Therefore, although the precision of the shoulder formed by this invention is less than that of the shoulder formed by hydraulic forming machine, it is sufficient to meet the precision required for non-welded pipe connection.

[0064] To achieve plastic deformation of pipe 1, when the forming die 2 moves to its foremost limit position, the front end of the forming die 2 can contact the clamping plate of the pneumatic clamp 1. To avoid interference between the forming die 2 and the clamping head 13 of the pneumatic clamp 1 during movement, the clamping head 13 of the pneumatic clamp 1 is built-in; that is, the clamping head 13 of the pneumatic clamp 1 is built into the clamping plate. Specifically, a radially extending track can be opened in the clamping plate, and the clamping head 13 is movably connected to the clamping plate through the radial track. By driving the clamping head 13 to move along the track through an external air source, the radial movement of the clamping head 13 relative to the clamping plate can be achieved.

[0065] Of course, the gripping head 13 of the pneumatic clamp 1 can also be external; that is, the gripping head 13 of the pneumatic clamp 1 protrudes from the clamping plate; such as Figure 7 As shown, when the forming die 2 moves to its foremost limit position, the front end of the forming die 2 can contact the end face of the clamping head 13, thereby achieving the extrusion of the clamped pipe.

[0066] The pneumatic clamp of this invention uses the existing technology for the movable connection between the clamping head 13 and the clamping disk, so it is not shown in the figure.

[0067] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A portable pipe mouth shaping device for a pipe, characterized in that, The utility model relates to a plastic connecting device, comprising: An L-shaped mounting rack is provided with a cavity rack at one end; the cavity rack and the side plate of the L-shaped mounting rack form the frame of the plastic device; the cavity rack has a cavity; An electric cylinder can drive the push rod to move linearly through the rotary motion of the motor; the cylinder body of the electric cylinder is fixedly connected to the side plate of the L-shaped mounting rack, and the cylinder body of the electric cylinder is fixedly connected to the bottom plate of the L-shaped mounting rack through a mounting support frame; A forming top die is fixedly arranged at the front end of the push rod of the electric cylinder; the forming top die can move synchronously with the push rod; the front end face of the forming top die is provided with a groove matched with the shoulder; and A pneumatic clamp is fixedly arranged in front of the push rod; the clamp disc of the pneumatic clamp is fixedly arranged on the cavity rack.

2. A portable pipe mouth profiling device for pipes according to claim 1, characterized in that, The front end face of the groove forms a second taper face; the second taper face is matched with the second shoulder taper face of the shoulder of the pipeline to be connected; the clamping holes formed by the opposite ends of the plurality of clamping heads of the pneumatic clamp are matched with the outer diameter of the pipeline to be connected; the rear end face of the clamping hole forms a first taper face; the first taper face is matched with the first shoulder taper face of the shoulder of the pipeline to be connected.

3. A portable pipe mouth profiling device for pipes according to claim 1 or 2, characterized in that The pneumatic clamp comprises the clamp disc, and the plurality of clamping heads are arranged on the clamp disc in the circumferential direction; the clamping head is movably connected to the clamp disc; the clamping head is connected to the gas source inlet pipeline and the gas source outlet pipeline.

4. A portable pipe mouth profiling device for pipes according to claim 3, characterized in that, The clamp disc of the pneumatic clamp is threadedly connected to the cavity rack.

5. A portable pipe mouth profiling device for pipes according to claim 4, characterized in that, The front end of the cavity is provided with an internal thread, and the rear end of the clamp disc of the pneumatic clamp is provided with an external thread; the rear end of the clamp disc extends into the cavity of the cavity rack, so that the pneumatic clamp is fixedly connected to the cavity rack.

6. The portable pipe end shaping device according to claim 1, characterized in that, The depth of the groove in the front end face of the forming top die is matched with the distance from the shoulder to be formed to the pipe end.

7. A portable pipe mouth profiling device for pipes according to claim 6, characterized in that The depth of the groove in the front end face of the forming top die is not greater than the radius of the pipeline to be connected.

8. The portable pipe end shaping device according to claim 1, characterized in that, The forming top die is threadedly connected to the push rod.

9. A portable pipe mouth profiling device for pipes according to claim 8, characterized in that, The forming top die is provided with a push rod connecting threaded hole; the push rod connecting threaded hole is matched with the front end of the push rod.

10. The portable pipe end shaping device according to claim 1, characterized in that, The side plate and the bottom plate of the L-shaped mounting rack are arranged perpendicularly to form the L-shaped structure.

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