Safety auxiliary device for machining and lengthening section of long pipe fitting

Abstract

The utility model discloses a safety auxiliary device for machining and lengthening the section of a long pipe fitting, and belongs to the technical field of pipe fitting machining. Comprising a bearing and an external connecting piece; the external connecting piece comprises a lower annular assembly and an upper transition clamping plate. The outer wall of the bearing is sleeved with the annular assembly. The bottom of the transition clamping plate is connected with the top of the annular assembly. A chain hanging hole is formed in the top of the transition clamping plate, a chain is connected in the chain hanging hole, and the transition clamping plate is connected with a lifting device through the chain; one end of the long pipe fitting extends into the lathe and is clamped through a lathe chuck, and a pipe body part of the long pipe fitting is suspended and penetrates through the bearing to be rotationally connected with the bearing in a matched mode; according to the utility model, the problem that the pipe body of the pipe is eccentrically bent or shaken when a lathe is used for processing the section of the long and complete pipe is solved, and the efficiency and the quality of beveling the long pipe are improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting processing technology, specifically a safety auxiliary device for lengthening the cross-section of long pipe fittings. Background Technology

[0002] In chemical enterprises, piping work is frequently encountered. During piping, the entire pipe is used for welding, as it cannot be cut. Furthermore, the pipe ends need to be beveled and ground. While lathe beveling can greatly save time, the pipe length is relatively long. When beveling on a lathe, the pipe end needs to be close to the chuck. The pipe extending beyond the lathe may bend eccentrically due to the lathe's rotation. Even if it doesn't bend, the excessively long pipe can swing under centrifugal force, causing safety accidents. Therefore, in order to save piping time and obtain a better pipe bevel, it is necessary to innovatively design auxiliary devices outside the lathe to ensure that the extended part of the pipe does not bend or vibrate, thus preventing safety accidents.

[0003] Patent publication number CN 109202768 A discloses a fixing fixture for pipe fittings with good fixing effect. It is configured with a threaded cap, threaded rod, rotating plate, handle, rotating device, and second telescopic rod. When the handle is turned forward, the rotating plate rotates, causing the threaded rod and rotating shaft to rotate. The threaded rod moves to the left, driving the second pressing plate to the left via the rotating shaft and bearing. Then, an electric push rod extends, causing a pad to move upward along the sliding rod, providing support for the pipe fitting and making it more stable during processing. This fixing fixture can also fix excessively long pipes, but it is not suitable for processing long pipes because it restricts pipe rotation and cannot be used in conjunction with a lathe.

[0004] Patent CN 209110719 U discloses an auxiliary device for grinding large-size straight pipe fittings. It includes a frame, an auxiliary lifting and clamping mechanism, a positioning support mechanism, and an auxiliary transfer device. The frame is a rectangular frame composed of two vertically connected horizontal and vertical beams. Frame slide rails are provided on the horizontal beams of the frame, and frame sliders are provided on the slide rails. The lifting cylinder of the auxiliary lifting and clamping mechanism is fixedly connected to the frame slider, and the telescopic rod of the lifting cylinder is fixedly connected to the lifting clamp seat. A first lifting jaw is provided on the first lead screw pair, and a second lifting jaw is provided on the second lead screw pair. This technology is used for auxiliary lifting, clamping, positioning support, and transfer of large-size pipe fittings during the grinding process. However, it is not applicable to the aforementioned auxiliary support for rotary lathe grinding of pipe bevels. Utility Model Content

[0005] This utility model overcomes the shortcomings of the prior art and proposes a safety auxiliary device for lengthening the cross-section of long pipe fittings; it solves the technical problem that eccentric bending or swinging occurs when a lathe is processing a long complete pipe fitting cross-section due to the length of the pipe fitting.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0007] A safety auxiliary device for lengthening the cross-section of a long pipe includes a bearing and an external connector. The external connector includes a lower annular assembly and an upper transition clamp. The annular assembly is sleeved on the outer wall of the bearing, and the bottom of the transition clamp is connected to the top of the annular assembly. A chain hanging hole is provided on the top of the transition clamp, and a chain is connected to the chain hanging hole and connected to a lifting device. One end of the long pipe extends into a lathe and is clamped by the lathe chuck. The pipe body is suspended and passes through the bearing, where it rotates and engages with the bearing.

[0008] Furthermore, the annular assembly has an opening at the top, and each end of the opening is welded to a transition plate, with the two transition plates connected by bolts and nuts.

[0009] Furthermore, the annular component is made of steel plate.

[0010] Furthermore, the width of the annular component is greater than the width of the bearing.

[0011] Furthermore, the inner wall of the annular assembly is welded to the outer wall of the bearing, and the annular assembly completely encloses the bearing.

[0012] Furthermore, the lifting device is a crane.

[0013] The beneficial effects of this utility model compared to the prior art are as follows:

[0014] This invention uses a bearing larger than the pipe as its main body. The bearing is fully encased by bending a sheet metal plate. Holes are drilled in the plate, and screws are installed at the bends for clamping. Holes are drilled at the top of the plate at the junction to allow eyelet screws to pass through. A chain hoist is attached to the eyelet for height adjustment. Finally, a crane suspends the chain hoist, completing the device. During operation, the pipe is inserted into the bearing and clamped in the lathe chuck. During lathe machining, the bearing rotates with the pipe, dispersing centrifugal force and ensuring the smooth machining of long pipes. This invention solves the defects of eccentric bending or swaying of the pipe body when machining long, complete pipe sections on a lathe, improving the efficiency and quality of pipe beveling; it also reduces the labor cost of grinding during piping installation, increases work efficiency, saves grinding time, improves the safety of lathe machining, and overcomes the barriers to machining long pipes on a lathe. Attached Figure Description

[0015] Figure 1 This is a front view of the safety auxiliary device for lengthening the cross-section of long pipes described in this utility model;

[0016] Figure 2 This is a schematic diagram of the safety auxiliary device for lengthening the cross-section of long pipes described in this utility model in its working state;

[0017] Figure label:

[0018] 1. Bearing; 2. Circular assembly; 3. Transition clamp; 4. Chain hanging hole; 5. Chain; 6. Long pipe fitting; 7. Lathe; 8. Bolt; 9. Nut. Detailed Implementation

[0019] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, this utility model will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. The technical solution of this utility model will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0020] See Figure 1 and Figure 2 As shown, this embodiment proposes a safety auxiliary device for lengthening the cross-section of long pipe fittings, including a bearing 1 and an external connector; the external connector includes a lower annular component 2 and an upper transition clamp 3; the annular component 2 is sleeved on the outer wall of the bearing 1, and the bottom of the transition clamp 3 is connected to the top of the annular component 2; in this embodiment, the top of the annular component 2 is open, and both ends of the opening are welded to a transition clamp 3, and the two transition clamps 3 are connected by bolts 8 and nuts 9. The annular component 2 is made of steel plate; the width of the annular component 2 is greater than the width of the bearing 1; the inner wall of the annular component 2 is welded to the outer wall of the bearing 1, and the annular component 2 completely encloses the bearing 1.

[0021] The top of the transition clamp 3 is provided with a chain hanging hole 4, and a chain 5 is connected in the chain hanging hole 4 and connected to the crane through the chain 5; one end of the long tube 6 extends into the lathe 7 and is clamped by the lathe chuck, the tube body of the long tube 6 is suspended in the air and passes through the bearing 1 and is rotatably connected with the bearing 1.

[0022] This embodiment proposes a method for manufacturing a safety auxiliary device for lengthening the cross-section of long pipe fittings:

[0023] This device uses a bearing 1, slightly larger in diameter than the long tube 6, as its main body. An external connector, consisting of an 8mm thick sheet metal bent into a circular lower component 2 and a transition clamping plate 3, fully encloses the bearing 1. Holes are drilled in the bottom of the transition clamping plate 3, and bolts 8 and nuts 9 are installed at the bends for clamping. Holes are drilled at the junction of the two transition clamping plates 3 to allow eye bolts to pass through, forming chain hanging holes 4. A chain hoist is hung in the chain hanging holes 4 for height adjustment. Finally, a crane suspends the chain hoist, completing the device's installation. During operation, the long tube 6 is inserted into the bearing 1 and clamped in the lathe chuck. During lathe machining, the tube body of the long tube 6 rotates within the bearing 1, dispersing the centrifugal force generated during machining and ensuring the lathe machining of the long tube 6.

[0024] This device solves the technical problem of eccentric bending or swinging of long, complete pipe sections during lathe machining, improving the efficiency and quality of pipe beveling; at the same time, it reduces the labor cost of grinding during pipe installation, increases work efficiency, saves grinding time, improves the safety of lathe machining, and breaks down the barriers to lathe machining of long pipe sections.

[0025] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments. It should not be considered that the specific embodiments of the present invention are limited to this. For those skilled in the art, several simple deductions or substitutions can be made without departing from the present invention, and all such deductions or substitutions should be considered to fall within the scope of patent protection determined by the submitted claims.

Claims

1. A safety auxiliary device for lengthening the cross-section of long pipe fittings, characterized in that, The application relates to a bearing (1) and an external connecting piece; the external connecting piece comprises a lower annular assembly (2) and an upper transition clamp plate (3); the annular assembly (2) is sleeved on the outer wall of the bearing (1), the bottom of the transition clamp plate (3) is connected with the top of the annular assembly (2); the top of the transition clamp plate (3) is provided with a chain hanging hole (4), the chain hanging hole (4) is connected with a chain (5) in the chain hanging hole (4), and the chain (5) is connected with a hoisting device; one end of a long pipe (6) is inserted into a lathe (7) and clamped by a lathe chuck, the pipe body of the long pipe (6) is suspended and the pipe body is connected with the bearing (1) in a rotating mode.

2. A safety device for use in the lengthening of a long tubular member according to claim 1, wherein The top of the annular assembly (2) is provided with an opening, and the two ends of the opening are respectively welded with a transition clamp plate (3); the two transition clamp plates (3) are connected through bolts (8) and nuts (9).

3. The safety device for lengthening of a long tubular element according to claim 2, characterized in that, The annular assembly (2) is made of steel plate.

4. The safety device for elongated tubular member according to claim 3, wherein The width of the annular assembly (2) is larger than the width of the bearing (1).

5. The safety device for lengthening of the pipe section machining according to claim 4, characterized in that The inner wall of the annular assembly (2) is welded with the outer wall of the bearing (1), and the annular assembly (2) fully wraps the bearing (1).

6. The safety device for elongated tubular member according to claim 1, wherein The hoisting device is a crane.

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