A pressure gauge buffer tube manufacturing device and manufacturing method thereof

Abstract

The present invention relates to the technical field of ship accessories, and discloses a pressure gauge buffer tube manufacturing device and a manufacturing method thereof, a pressure gauge buffer tube manufacturing device, comprising a base, a positioning rod, an operating handle, a threaded rod, a bending die guide wheel and a fixed shaft, the positioning rod and the fixed shaft are vertically fixedly connected to the base, the front end of the operating handle is vertically rotatably connected to the upper end of the fixed shaft, the threaded rod is vertically fixedly connected to the operating handle, the bending die guide wheel is threadedly connected to the threaded rod, the threaded rod and the fixed shaft are parallel to each other and are located on the same side of the operating handle as the bending die guide wheel, and the outer peripheral wall of the bending die guide wheel is provided with a U-shaped groove matching the tube body. This pressure gauge buffer tube manufacturing device is safe and convenient to use, and in the on-site pressure gauge buffer tube manufacturing process, it avoids the potential safety hazards caused by heating by flame or other means, and can be mass-produced to reduce costs and increase efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of ship accessory manufacturing, and in particular to a pressure gauge buffer tube manufacturing device and a manufacturing method thereof used in the installation process of a ship pressure gauge buffer tube. Background Art

[0002] With the development of science and technology and productivity, in order to survive in this diversified and fast-developing society, all walks of life are constantly innovating and progressing. Accelerating the pace of technological updates and product quality, and shortening the construction cycle while ensuring quality and quantity is one of the development projects of every enterprise.

[0003] In shipbuilding, many different types of ship accessories need to be manufactured to be installed on the hull. Among them, when installing a pressure gauge, a buffer tube must be connected. The pressure gauge buffer tube, also called a pressure gauge elbow or condenser tube, is a fitting used to connect the pressure gauge to the equipment or pipeline measured by the pressure gauge. It is used to buffer the instantaneous impact of the measured medium on the pressure gauge spring tube and reduce the temperature of the measured medium. It is a device for protecting the pressure gauge. The production of buffer tubes generally involves making straight tubes into the required bending shape on site. The bending preparation range of general small bending production tools is only within 90°, which cannot actually meet the bending range requirements of ship pressure gauge buffer tubes. Therefore, the traditional commonly used bending preparation method for buffer tubes mainly uses flame heating to soften the pipe material and hot bend the pipe body into a pressure gauge buffer ring. The traditional flame heating construction method for making pressure gauge buffer tubes is relatively backward, which is mainly manifested in the following aspects:

[0004] 1. The bending process is difficult and takes a long time, resulting in poor forming;

[0005] 2. After heating, the surface of the pipe body changes, the surface is oxidized and blackened, and it is easy to be deformed by external forces after installation on board, which affects the appearance;

[0006] 3. Flame heating can easily cause changes in the pipe material. At the same time, long-term flushing of the pipeline liquid pressure can easily cause pipeline rupture and leakage, posing installation risks;

[0007] 4. Flame heating and then bending the pipe body has low work efficiency and complicated operation, and also damages the original material properties of the pipe. Summary of the invention

[0008] The purpose of the present invention is to provide a pressure gauge buffer tube manufacturing device and a manufacturing method thereof, which can conveniently bend the buffer tube by more than 90 degrees without heating the tube body to change its material.

[0009] In order to solve the above technical problems, the present invention provides a pressure gauge buffer tube manufacturing device and a manufacturing method thereof.

[0010] A pressure gauge buffer tube manufacturing device includes a base, a positioning rod, an operating handle, a threaded rod, a bending die guide wheel and a fixed shaft, the positioning rod and the fixed shaft are vertically fixedly connected to the base, the front end of the operating handle is vertically rotatably connected to the upper end of the fixed shaft, the threaded rod is vertically fixedly connected to the operating handle, the bending die guide wheel is threadedly connected to the threaded rod, the threaded rod and the fixed shaft are correspondingly parallel and located on the same side of the operating handle as the bending die guide wheel, and the outer peripheral wall of the bending die guide wheel is provided with a U-shaped groove that matches the tube body.

[0011] As a preferred solution of the present invention, the fixed shaft includes a fixed sleeve, a locking rod, a rod sleeve, a bearing and a locking nut. The fixed sleeve and the locking rod are coaxially and vertically fixed to the base, and the locking rod is located inside the fixed sleeve. The rod sleeve fits the locking rod and is located inside the fixed sleeve. The rod sleeve is connected to the inner ring of the bearing. The bearing is rotatably mounted on the locking rod through the locking nut, and the outer ring of the bearing is connected to the front end of the operating handle.

[0012] As a preferred embodiment of the present invention, the pressure gauge buffer tube manufacturing device includes a magnetic suction seat that is quickly assembled and disassembled from the base.

[0013] As a preferred solution of the present invention, the magnetic seat is magnetically connected to the base, and the magnetic seat is provided with a limit block for matching and positioning the base.

[0014] As a preferred solution of the present invention, there are at least two limit blocks, and the limit blocks are respectively welded to the two side edges of the magnetic suction seat and extend upward.

[0015] As a preferred solution of the present invention, the end of the operating handle is wrapped with wear-resistant rubber.

[0016] A method for manufacturing a pressure gauge buffer tube manufacturing device comprises the following steps: 1. vertically fixing a positioning rod and a fixed shaft to a base; 2. vertically rotatably connecting the front end of an operating handle to the upper end of the fixed shaft; 3. vertically fixing a threaded rod to the operating handle, and the threaded rod and the fixed shaft are correspondingly and parallelly located on the same side of the operating handle; 4. threadingly connecting a bending die guide wheel having a U-shaped groove on the outer peripheral wall that matches the tube body to the threaded rod.

[0017] As a preferred embodiment of the present invention, in the step one, the fixed shaft includes a fixed sleeve, a locking rod, a rod sleeve, a bearing and a locking nut. The fixed sleeve and the locking rod are coaxially and vertically fixed to the base, and the locking rod is installed inside the fixed sleeve. The rod sleeve is fitted over the locking rod and is located inside the fixed sleeve, the rod sleeve is connected to the inner ring of the bearing, and the bearing is rotatably mounted on the locking rod through the locking nut. In the step two, the outer ring of the bearing is connected to the front end of the operating handle.

[0018] As a preferred embodiment of the present invention, the manufacturing method further includes step five, purchasing or using cast iron molding and magnets to manufacture a matching magnetic suction seat for quick assembly and disassembly connection to the base.

[0019] As a preferred embodiment of the present invention, in step five, a limit block is provided on the magnetic seat.

[0020] Compared with the prior art, the pressure gauge buffer tube manufacturing device and manufacturing method according to the embodiment of the present invention have the following beneficial effects:

[0021] 1. This pressure gauge buffer tube manufacturing device is safe to use. During the on-site pressure gauge buffer tube manufacturing process, it avoids the potential safety hazards caused by heating by flame or other means;

[0022] 2. This pressure gauge buffer tube manufacturing device is easy to use. Under the condition that the material of the pipe remains unchanged, the marine pressure gauge buffer tube can be manufactured by cold bending. At the same time, it can be mass-produced to achieve the effect of reducing costs and increasing efficiency.

[0023] 3. The manufacturing method of the pressure gauge buffer tube manufacturing device is simple, and commercially available or homemade parts can be used. It only needs simple welding and assembly, which is highly practical and low in cost;

[0024] 4. This pressure gauge buffer tube manufacturing device is portable and can be bent to make the pressure gauge buffer tube by fixing the magnetic seat on the steel plate and profile when in use. When not in use, the magnetic seat and locking bolts can be removed to store it in a very small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the installation structure of a three-dimensional viewing angle of an embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of the installation structure of an embodiment of the present invention from a side viewing angle;

[0027] In the figure, 1, base; 2, positioning rod; 3, operating handle; 4, threaded rod; 5, bending mold guide wheel; 6, fixed shaft; 61, fixed shaft sleeve; 62, locking rod; 63, rod sleeve; 64, bearing; 65, locking nut; 7, magnetic seat; 71, limit block. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In the description of the present invention, it should be understood that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" used in the present invention should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the description of the present invention, it is also necessary to understand that the orientations or positional relationships indicated by terms such as "up", "down", "left", "right", "front", "back", "top" and "bottom" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the machine or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] refer to Figure 1 and 2A pressure gauge buffer tube manufacturing device according to an embodiment of the present invention comprises a base 1, a positioning rod 2, an operating handle 3, a threaded rod 4, a bending die guide wheel 5 and a fixed shaft 6, wherein the positioning rod 2 and the fixed shaft 6 are vertically fixedly connected to the upper side of the base 1, the positioning rod 2 and the fixed shaft 6 are parallel, the front end of the operating handle 3 is vertically rotatably connected to the upper end of the fixed shaft 6, the threaded rod 4 is also vertically fixedly connected to the operating handle 3, the bending die guide wheel 5 is connected to the threaded rod 4 by a lifting thread, the threaded rod 4 and the fixed shaft 6 are correspondingly parallel and located on the same side of the operating handle 3, the outer peripheral wall of the bending die guide wheel 5 is provided with a U-shaped groove matching the tube body, and when the threaded rod 4 rotates along the upper end of the fixed shaft 6, the threaded rod 4 and the bending die guide wheel 5 also follow and rotate around the fixed shaft 6 When in use, first pass the straight tube body between the positioning rod 2 and the fixed axis 6, rotate the operating handle 3 to move toward the positioning rod 2, and make the bending die guide wheel 5 correspondingly abut the straight tube. At this time, the middle section of the tube body is surrounded by the fixed axis 6, and the positioning rod 2 and the bending die guide wheel 5 relatively drive the front and rear parts of the tube body in the middle section to bend around the fixed axis 6 at the same time. At the same time, since the bending die guide wheel 5 rotates along the threaded rod 4, it naturally moves along the axial direction of the threaded rod 4 through the lifting thread, thereby driving the tube body to spirally bend. The bending angle of the tube body can exceed 360° and can be offset accordingly along the normal direction to form a coil shape while continuing to bend. The cold bending method is very convenient in the processing process. The pressure gauge buffer tube manufacturing device is very portable. There is no need to use heating to bend the tube body to avoid safety hazards, while keeping the tube body material inconvenient.

[0032] refer to Figure 1 and 2, exemplarily, the fixed shaft 6 includes a fixed sleeve 61, a locking rod 62, a rod sleeve 63, a bearing 64 and a locking nut 65, the fixed sleeve 61 and the locking rod 62 are coaxially and vertically fixed to the base 1, and the locking rod 62 is located inside the fixed sleeve 61, the rod sleeve 63 is sleeved with the locking rod 62 and is located in the fixed sleeve 61, the rod sleeve 63 is connected to the inner ring of the bearing 64, the bearing 64 is rotatably mounted on the locking rod 62 through the locking nut 65, the outer ring of the bearing 64 is connected to the front end of the operating handle 3, and the rod sleeve 63 is positioned between the fixed sleeve 61 and the locking nut The locking nut 65 is threadedly connected to the upper end of the locking rod 62, so that the inner ring of the bearing 64 and / or the rod sleeve 63 are axially pressed onto the base 1 or the fixed sleeve 61. Therefore, the pressure gauge buffer tube manufacturing device can be easily assembled and disassembled, and the components can be flexibly stored in a small space after disassembly. Of course, the fixed shaft 6 can also be rotatably hinged with the operating handle 3 or rotatably connected through other structural methods. For example, a hole is provided at the front end of the operating handle 3, and the upper end of the fixed shaft 6 is rotatably riveted to the hole at the front end of the operating handle 3.

[0033] refer to Figure 1 and 2 Exemplarily, the pressure gauge buffer tube manufacturing device also includes a magnetic seat 7 that is quickly assembled and disassembled with the base 1. The magnetic seat 7 can be arbitrarily magnetically fixed to structures such as steel plates, profiles, and metal tables, so that the buffer tube can be flexibly manufactured. It is very convenient to fix the base 1 together with the pressure gauge buffer tube manufacturing device when in use, so as to perform the tube bending processing operation. The base 1 can be connected by quick-assemble and disassemble bolts, nuts, or clamps.

[0034] refer to Figure 1 and 2 Exemplarily, the magnetic seat 7 is magnetically connected to the base 1, and the magnetic seat 7 is provided with a limit block 71 for matching and positioning the base 1. The limit block 71 may be a column protruding from the side of the magnetic seat 7, and the base 1 is positioned in correspondence with the limit block 71 through matching recesses or holes, thereby limiting the freedom of movement of the base 1 on the magnetic seat 7, making the connection more convenient and easier to store after disassembly.

[0035] refer to Figure 1 and 2Exemplarily, there are at least two limit blocks 71, and the limit blocks 71 are respectively welded to the two side edges of the magnetic seat 7 and extend upward, so when the base 1 is directly placed on the magnetic seat 7, it falls between the two limit blocks 71 at the same time. When the magnetic seat 7 absorbs the base 1, the two limit blocks 71 clamp the two side edges of the base 1 accordingly, thereby quickly fixing the base 1.

[0036] refer to Figure 1 and 2 , exemplarily, the end of the operating handle 3 is wrapped with wear-resistant rubber to protect the operator from stress when holding it, the front end of the operating handle 3 is processed with an arc groove corresponding to the outer ring radius of the bearing 64 and welded to the outer ring of the bearing 64, the end of the threaded rod 4 extending away from the bending mold guide wheel 5 is welded to the operating handle 3, that is, the threaded rod 4 is perpendicular to the bearing surface of the bearing 64, and both are located on the same side of the operating handle 3, the rod sleeve 63 is made of steel pipe, the bearing 64 is selected from AX4060, the positioning rod 2, the threaded rod 4 and the locking rod 62 are respectively made of Q235 steel bars, the fixed sleeve 61, the positioning rod 2 and the locking rod 62 are welded to the base 1 and arranged in a straight line, the magnetic seat 7 is made of cast iron and magnet or can be purchased on the market, the base 1 and the limit block 71 are respectively made of Q235 steel plates.

[0037] refer to Figure 1 and 2 Exemplarily, a method for manufacturing a pressure gauge buffer tube manufacturing device includes the following steps: 1. vertically fixing the positioning rod 2 and the fixed shaft 6 to the base 1; 2. vertically and rotatably connecting the front end of the operating handle 3 to the upper end of the fixed shaft 6; 3. vertically fixing the threaded rod 4 to the operating handle 3, and the threaded rod 4 and the fixed shaft 6 are correspondingly and parallelly located on the same side of the operating handle 3; 4. connecting the bending die guide wheel 5 whose outer wall is provided with a U-shaped groove matching the tube body to the threaded rod 4 through a lifting thread.

[0038] refer to Figure 1 and 2, illustratively, in the step one, the fixed shaft 6 includes a fixed sleeve 61, a locking rod 62, a rod sleeve 63, a bearing 64 and a locking nut 65, the fixed sleeve 61 and the locking rod 62 are coaxially and vertically fixed to the base 1, and the locking rod 62 is installed inside the fixed sleeve 61, the rod sleeve 63 is sleeved on the locking rod 62 and is located in the fixed sleeve 61, the rod sleeve 63 is connected to the inner ring of the bearing 64, and the bearing 64 is rotatably mounted on the locking rod 62 through the locking nut 65; in the step two, the outer ring of the bearing 64 is connected to the front end of the operating handle 3.

[0039] refer to Figure 1 , exemplarily, it also includes step five, purchasing or using cast iron molding and magnets to make a matching magnetic suction seat 7 for quick assembly and disassembly connection to the base 1.

[0040] refer to Figure 1 , illustratively, in the step five, a limit block 71 is provided on the magnetic seat 7 .

[0041] This production method is simple and can use commercially available or homemade parts. It only requires simple welding and assembly. It is highly practical and low-cost.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A pressure gauge buffer tube manufacturing device, characterized in that: It comprises a base, a positioning rod, an operating handle, a threaded rod, a bending die guide wheel and a fixed shaft, and a magnetic seat connected to the base for quick assembly and disassembly, the positioning rod and the fixed shaft are vertically fixedly connected to the base, the front end of the operating handle is vertically rotatably connected to the upper end of the fixed shaft, the threaded rod is vertically fixedly connected to the operating handle, the bending die guide wheel is threadedly connected to the threaded rod, the threaded rod and the fixed shaft are correspondingly parallel and located on the same side of the operating handle as the bending die guide wheel, and the outer peripheral wall of the bending die guide wheel is provided with a U-shaped groove matching the tube body; The fixed shaft includes a fixed sleeve, a locking rod, a rod sleeve, a bearing and a locking nut. The fixed sleeve and the locking rod are coaxially and vertically fixed to the base, and the locking rod is located inside the fixed sleeve. The rod sleeve fits the locking rod and is located in the fixed sleeve. The rod sleeve is connected to the inner ring of the bearing. The bearing is rotatably mounted on the locking rod through the locking nut. The outer ring of the bearing is connected to the front end of the operating handle; the end of the operating handle is wrapped with wear-resistant rubber.

2. A pressure gauge buffer tube manufacturing device according to claim 1, characterized in that: The magnetic seat is magnetically connected to the base, and the magnetic seat is provided with a limit block for matching and positioning the base.

3. A pressure gauge buffer tube manufacturing device according to claim 2, characterized in that: There are at least two limit blocks, and the limit blocks are respectively welded to the two side edges of the magnetic suction seat and extend upward.

4. A method for manufacturing a pressure gauge buffer tube manufacturing device as claimed in claim 1, characterized in that The method comprises the following steps:

1. vertically fixing the positioning rod and the fixed shaft to the base; 2. vertically rotatably connecting the front end of the operating handle to the upper end of the fixed shaft; 3. vertically fixing the threaded rod to the operating handle, and the threaded rod and the fixed shaft are correspondingly and parallelly located on the same side of the operating handle; 4. threadingly connecting the bending die guide wheel having a U-shaped groove on the outer peripheral wall that matches the tube body to the threaded rod.

5. The method for manufacturing a pressure gauge buffer tube manufacturing device according to claim 4, characterized in that: In the step one, the fixed shaft includes a fixed sleeve, a locking rod, a rod sleeve, a bearing and a locking nut. The fixed sleeve and the locking rod are coaxially and vertically fixed to the base, and the locking rod is installed inside the fixed sleeve. The rod sleeve is fitted over the locking rod and is located inside the fixed sleeve. The rod sleeve is connected to the inner ring of the bearing, and the bearing is rotatably mounted on the locking rod through the locking nut. In the step two, the outer ring of the bearing is connected to the front end of the operating handle.

6. The method for manufacturing a pressure gauge buffer tube manufacturing device according to claim 4, characterized in that: The method also includes step five, purchasing or using cast iron and magnets to make a matching magnetic suction seat for quick assembly and disassembly connection with the base.

7. The method for manufacturing a pressure gauge buffer tube manufacturing device according to claim 6, characterized in that: In the step five, a limit block is provided on the magnetic seat.

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