Necking device for metal pipe

By combining self-rotation and protective heating mechanisms, the metal tube shrinking process is automated, solving the safety hazards in high-temperature operation and achieving a safe and efficient metal tube shrinking process.

CN223801373UActive Publication Date: 2026-01-16NANTONG BEIJIE HEAVY IND CO LTD
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Patent Information

Application Number
CN202520432701.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-01-16
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

Existing metal tube narrowing devices can easily cause burns to workers during high-temperature operation, posing a safety hazard.

Method used

A metal tube constriction device including a self-rotating mechanism and a protective heating mechanism was designed. The metal tube is automatically rotated by an electric slide rail and a clamp, and the metal tube is wrapped with an electric telescopic rod and a hemispherical shell to avoid direct contact with high temperature operation.

Benefits of technology

It enables automated operation without the need to hold the heated metal tube by hand, reducing the risk of burns to workers and improving operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a metal pipe necking device which comprises a workbench, one side of the top face of the workbench is fixedly connected with a self-rotating mechanism, the middle of the top face of the workbench is fixedly connected with a protective heating mechanism, the self-rotating mechanism comprises a limiting gear shell, the limiting gear shell is fixedly connected to one side of the top face of the workbench, and the limiting gear shell is fixedly connected with a limiting sleeve. The half gear is welded to one side of the top face of the limiting gear shell, the gear disc is connected to one end of the half gear in a meshed mode, and the bottom of the gear disc is connected to the interior of the limiting gear shell; the gas stove has the advantages that the gas stove is simple in structure and reasonable in design, high-temperature operation can be carried out without holding a metal pipe in heating by hands, scalding or other safety accidents of workers can be reduced, and the gas stove has certain safety, and the protective heating mechanism comprises a gas stove main body, two hemispherical shells, two rotating shafts A, two electric telescopic rods and two rotating shafts B; a worker is prevented from being scalded when one end of the metal pipe is heated by the gas stove main body, and the safety of the gas stove is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the necking device technical field of metal pipe, specifically be a necking device of metal pipe. BACKGROUND

[0002] The necking device of metal pipe is a kind of equipment for reducing the caliber of metal pipe to predetermined size. It is compressed, shrinks by machining or pressure deformation, and forms smaller caliber. Common metal pipe necking device is usually used in pipeline connection, valve installation and other occasions, the purpose is to make pipeline and other components better butt joint.

[0003] Disadvantages of prior art:

[0004] At present, most of the necking device of metal pipe, manual metal pipe is held and then heated by using heating furnace, so that pipe is uniformly heated, then the device is used to necking, but metal pipe in hand heating involves high-temperature operation, easy to cause worker scald or other safety accidents, do not have certain security. Utility model content

[0005] The utility model aims at providing a necking device of metal pipe to solve the problems in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a necking device of metal pipe, including workbench, the top surface one side of workbench is fixedly connected with self-rotating mechanism, the top surface middle part of workbench is fixedly connected with protection heating mechanism, the self-rotating mechanism includes:

[0007] Limiting gear housing, the limiting gear housing is fixedly connected on the top surface one side of workbench;

[0008] Half gear, the half gear is welded on the top surface one side of limiting gear housing;

[0009] Gear disc, the gear disc is engagedly connected in one end of half gear, and the bottom of gear disc is connected in the inside of limiting gear housing;

[0010] Gear main body, the gear main body is engagedly connected in one end of gear disc;

[0011] Motor, the motor is connected on the outer surface of gear main body by shaft;

[0012] Two electric slide rails, two electric slide rails are connected on the outer surface both sides of workbench;

[0013] Two clamps, two clamps are slidably connected on one side of two electric slide rails respectively, facilitate clamping and fixing metal pipe, and assist two electric slide rails to adjust metal pipe position.

[0014] Preferably, the protection heating mechanism comprises:

[0015] A gas stove body is fixedly connected to the middle part of the top surface of the workbench;

[0016] Two hemispherical shells are arranged on both sides of the gas stove body;

[0017] Two rotating shafts A are fixedly connected to one side of the two hemispherical shells respectively;

[0018] Two electric telescopic rods are rotatably connected to one side of the two rotating shafts A respectively, and the bottoms of the two electric telescopic rods are welded to the two sides of the top surface of the workbench;

[0019] Two rotating shafts B are fixedly connected to the surfaces of the two hemispherical shells respectively, and the bottoms of the two rotating shafts B are fixedly connected to the surface of the workbench.

[0020] Preferably, the top surface of the workbench is fixedly connected with a necking device body, and the top surface of the necking device body is welded with two hooks.

[0021] Preferably, the bottom surface of the workbench is welded with four supporting legs around, and the bottoms of the four supporting legs are welded with a base plate.

[0022] Preferably, the top surface of the base plate is provided with a storage box, and the inside of the storage box is inserted with a drawer box for storing the articles required for work.

[0023] Preferably, one side of the drawer box is welded with a handle, and the surface of the handle is sleeved with an anti-skid sleeve to facilitate the drawer box to take out the articles for use.

[0024] Preferably, the upper end of the workbench is provided with a receiving frame for mounting a motor, and the upper end of the receiving frame is connected to the two sides of the motor.

[0025] Compared with the prior art, the utility model has the beneficial effects that:

[0026] 1. The necking device of the metal pipe, the self-rotating mechanism comprises a limiting gear shell, a half gear, a gear disc, a gear main body, a motor, two electric sliding rails and two clamps, the metal pipe is placed in the inner surfaces of the two clamps, then the two electric sliding rails are driven to move the metal pipe, so that the metal pipe penetrates one end of the half gear on the gas stove main body, at this time the touch rod on one side of the electric sliding rail touches the pressure sensor arranged on one side of the workbench, the pressure sensor transmits a signal to the control panel, the control panel drives the motor to drive the gear main body to rotate, the gear main body drives the half gear to rotate, so that the metal pipe rotates, without holding the metal pipe in heating to perform high-temperature operation, reducing the risk of burns or other safety accidents of workers, and having certain safety;

[0027] 2. The necking device of the metal pipe, the protective heating mechanism comprises a gas stove main body, two half ball shells, two shafts A, two electric telescopic rods and two shafts B, the two electric telescopic rods are driven to rotate the two half ball shells under the action of the two shafts A and the two shafts B, so that one end of the metal pipe on the gas stove main body is wrapped, avoiding the risk of burns of workers when the gas stove main body heats one end of the metal pipe, and increasing the safety. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a whole structure schematic view of the utility model;

[0029] Figure 2 It is a split solid drawing of the self-rotating mechanism of the utility model;

[0030] Figure 3 It is a split solid drawing of the protective heating mechanism of the utility model;

[0031] Figure 4 It is a solid drawing of the storage box of the utility model.

[0032] In the drawing: 1, workbench; 2, self-rotating mechanism; 201, limiting gear shell; 202, half gear; 203, gear disc; 204, gear main body; 205, motor; 206, electric sliding rail; 207, clamp; 3, protective heating mechanism; 301, gas stove main body; 302, half ball shell; 303, shaft A; 304, electric telescopic rod; 305, shaft B; 4, necking device main body; 5, hook; 6, supporting leg; 7, base plate; 8, storage box; 9, drawer box; 10, handle; 11, supporting frame; 12, pressure sensor. DETAILED DESCRIPTION

[0033] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present application.

[0034] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In the description of the present patent, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those of ordinary skill in the art, the specific meaning of the above terms in the present patent can be understood according to the specific circumstances.

[0036] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several" is two or more, unless otherwise explicitly specified and limited.

[0037] Example 1

[0038] Please refer to Figures 1-4The utility model provides a kind of necking device of metal pipe technical scheme shown in the utility model: including workbench 1, the top surface side of workbench 1 is fixedly connected with self-rotating mechanism 2, the top surface middle part of workbench 1 is fixedly connected with protective heating mechanism 3, self-rotating mechanism 2 includes, limit gear housing 201, limit gear housing 201 is fixedly connected in the top surface side of workbench 1, half gear 202, half gear 202 is welded in the top surface side of limit gear housing 201, gear disc 203, gear disc 203 is engagedly connected in one end of half gear 202, the bottom of gear disc 203 is connected in the inside of limit gear housing 201, gear main body 204, gear main body 204 is engagedly connected in one end of gear disc 203, motor 205, motor 205 is connected on the outer surface of gear main body 204 by shaft coupling, two electric slide rails 206, two electric slide rails 206 are connected on the outer surface two sides of workbench 1, two clamps 207, two clamps 207 are slidably connected in one side of two electric slide rails 206 respectively, it is convenient to clamp and fix metal pipe, the position of metal pipe is adjusted to two electric slide rails 206, metal pipe is placed in the inner surface of two clamps 207, and then two electric slide rails 206 are driven to move metal pipe, so that metal pipe is penetrated in one end of half gear 202 and is located on gas stove main body 301, at this time, the touch rod of one side of one set of electric slide rails 206 will touch the pressure sensor 12 arranged in the side of workbench 1, and the signal is transmitted to control panel by pressure sensor 12, and control panel drives motor 205 to drive gear main body 204 to rotate, and gear main body 204 drives half gear 202 to rotate so that metal pipe rotates, without holding metal pipe in heating to carry out high temperature operation, reduce the scalding or other safety accidents of worker, have certain security.

[0039] Protective heating mechanism 3 includes, gas stove main body 301, gas stove main body 301 is fixedly connected in the top surface middle part of workbench 1, two hemispherical shells 302, two hemispherical shells 302 are arranged in the two sides of gas stove main body 301, two rotation shafts A 303, two rotation shafts A 303 are fixedly connected in one side of two hemispherical shells 302 respectively, two electric telescopic rods 304, two electric telescopic rods 304 are rotatably connected in one side of two rotation shafts A 303 respectively, the bottom of two electric telescopic rods 304 is welded in the top surface two sides of workbench 1, two rotation shafts B 305, two rotation shafts B 305 are fixedly connected on the surface of two hemispherical shells 302 respectively, the bottom of two rotation shafts B 305 is fixedly connected on the surface of workbench 1, drive two electric telescopic rods 304 to drive two hemispherical shells 302 to rotate under the action of two rotation shafts A 303 and two rotation shafts B 305, so that one end of metal pipe on gas stove main body 301 is wrapped, avoid that gas stove main body 301 is scalded when heating one end of metal pipe to staff, increase its security.

[0040] The top end of the workbench 1 is fixedly connected with a necking device body 4, and the top surface of the necking device body 4 is welded with two hooks 5, which facilitates the necking of the metal pipe.

[0041] The bottom surface of the workbench 1 is welded with four supporting legs 6, and the bottom of the four supporting legs 6 is welded with a base plate 7, which avoids the bottom of the gas stove body 301 and the storage box 8 from being protected.

[0042] The top surface of the base plate 7 is provided with a storage box 8, and the inside of the storage box 8 is inserted with a drawer box 9, which is used for storing the articles required during work.

[0043] One side of the drawer box 9 is welded with a handle 10, and the surface of the handle 10 is sleeved with an anti-skid sleeve, which facilitates the pulling of the drawer box 9 to take the articles for use.

[0044] The upper end of the workbench 1 is provided with a receiving frame 11 for mounting a motor 205, and the upper end of the receiving frame 11 is connected with the two sides of the motor 205.

[0045] In the device, the metal pipe is placed on the inner surface of the two clamps 207, and then the two electric sliding rails 206 are driven to move the metal pipe, so that the metal pipe penetrates one end of the half gear 202 on the gas stove body 301. At this time, the touch rod on one side of one set of electric sliding rails 206 will touch the pressure sensor 12 arranged on one side of the workbench 1, and the pressure sensor 12 will transmit a signal to the control panel, and the control panel will drive the motor 205 to drive the gear body 204 to rotate, and the gear body 204 drives the half gear 202 to rotate so that the metal pipe rotates. Without holding the metal pipe in heating for high-temperature operation, the worker's scalding or other safety accidents are reduced, and a certain safety is provided. Then the gas stove body 301 is driven to heat the metal pipe, and then the two electric telescopic rods 304 are driven to drive the two hemispherical shells 302 to rotate under the action of the two rotating shafts A 303 and the two rotating shafts B 305, so as to wrap one end of the metal pipe on the gas stove body 301, avoiding the gas stove body 301 from scalding the worker when heating one end of the metal pipe, increasing the safety, and then driving the two electric sliding rails 206 to drive the heated metal pipe to continue to one side, until it is inserted into the necking device body 4, so as to neck the metal pipe by the necking device body 4.

[0046] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A necking device for metal tubes, comprising a worktable (1), characterized in that: The top surface side of the workbench (1) is fixedly connected with a self-rotating mechanism (2), the middle of the top surface of the workbench (1) is fixedly connected with a protective heating mechanism (3), the self-rotating mechanism (2) comprises: A limiting gear housing (201) is fixedly connected to the top surface side of the workbench (1); A half gear (202) is welded to the top surface side of the limiting gear housing (201); A gear disc (203) is meshingly connected to one end of the half gear (202), and the bottom of the gear disc (203) is connected to the inside of the limiting gear housing (201); A gear body (204) is meshingly connected to one end of the gear disc (203); An electric motor (205) is connected to the outer surface of the gear body (204) through a shaft coupling; Two electric slide rails (206) are connected to the outer surface sides of the workbench (1); Two clamps (207) are respectively slidably connected to one side of the two electric slide rails (206), which facilitate clamping and fixing metal pipes and assist the two electric slide rails (206) in adjusting the position of the metal pipes.

2. A device for necking a metal tube according to claim 1, wherein: The protective heating mechanism (3) comprises: A gas stove body (301) is fixedly connected to the middle of the top surface of the workbench (1); Two hemispherical shells (302) are arranged on the two sides of the gas stove body (301); Two shafts A (303) are respectively fixedly connected to one side of the two hemispherical shells (302); Two electric telescopic rods (304) are respectively rotatably connected to one side of the two shafts A (303), and the bottoms of the two electric telescopic rods (304) are welded to the two sides of the top surface of the workbench (1); Two shafts B (305) are respectively fixedly connected to the surfaces of the two hemispherical shells (302), and the bottoms of the two shafts B (305) are fixedly connected to the surface of the workbench (1).

3. A device for necking a metal tube according to claim 1, wherein: The top surface of the workbench (1) is fixedly connected with a necking device body (4), and the top surface of the necking device body (4) is welded with two hooks (5).

4. A device for necking a metal tube according to claim 1, wherein: The bottom surface of the workbench (1) is welded with four supporting legs (6), and the bottoms of the four supporting legs (6) are welded with a base plate (7).

5. A device for necking a metal tube according to claim 4, wherein: A storage box (8) is arranged on one side of the top surface of the base plate (7), a drawer box (9) is inserted into the inside of the storage box (8), and the drawer box (9) is used for storing articles required during work.

6. A device for necking a metal tube according to claim 5, wherein: A handle (10) is welded to one side of the drawer box (9), and an anti-skid sleeve is sleeved on the surface of the handle (10), so that the drawer box (9) can be pulled out to take articles for use.

7. A device for necking a metal tube as defined in claim 1, wherein: The upper end of the workbench (1) is provided with a receiving frame (11) for mounting the electric motor (205), and the upper end of the receiving frame (11) is connected to the two sides of the electric motor (205).