Pipe fitting butt joint connection and root processing device

Abstract

The utility model belongs to the technical field of pipe butt-joint processing, and discloses a pipe fitting butt-joint connection and root processing device which comprises a mandrel. The step shaft is arranged on the periphery of the core shaft; the positioning semi-ring is fixedly connected with the step shaft; and the blade is arranged on the periphery of the positioning semi-ring, and the edge part of the blade faces the weld beading position of the pipe. When the device is used for welding and positioning the groove of the pipe joint, the straightness of the butt-joint welded junction of the pipe joint can be effectively ensured after the welding operation is finished, and the product quality is ensured. The blade removes the weld beading of the combined piece, the function of machining and removing the weld beading at the root of the butt-joint welded junction of the pipe is achieved, the procedure of removing the weld beading at the root of the pipe through manual polishing is omitted, the product manufacturing efficiency is remarkably improved, and large-scale use in a production workshop is facilitated.

Description

Technical Field

[0001] The utility model belongs to the field of pipe butt-jointing processing, and relates to a pipe assembly butt-jointing and root processing device. Background Art

[0002] Currently, the butt-welding process for butt-welded pipe joints in boilers lacks a positioning device. This results in significant kinks in the joints, resulting in severe straightness deviations. This requires subsequent grinding at the base of the butt-weld seam to remove weld beading, which is time-consuming and labor-intensive, reducing production efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pipe assembly butt connection and root processing device.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is to provide a pipe joint connection and root processing device, which includes:

[0005] a core shaft having a through hole coaxial therewith;

[0006] At least one stepped shaft is provided on the outer periphery of the core shaft;

[0007] A positioning half ring, fixedly connected to the step shaft;

[0008] A blade is arranged on the outer periphery of the positioning half ring, and the edge of the blade faces the weld bead position of the pipe.

[0009] According to the present invention, further, the positioning half ring is a semicircular ring cavity, the two positioning half ring openings are relatively fixed, and the stepped shaft is installed and fixed in the cavity formed by the two positioning half rings.

[0010] According to the present invention, further, a stepped hole for cooperating with the stepped shaft is provided in the cavity of the positioning half ring.

[0011] According to the utility model, further, a waist-round hole is opened at the center of the core shaft.

[0012] According to the present invention, further, there are two stepped shafts, which are respectively arranged on both sides of the waist-round hole.

[0013] According to the present invention, further, a groove is provided on the outer periphery of the positioning half ring, and a silicone ring is installed in the groove, and the two positioning half rings are bundled and combined into an integrated structure through the silicone ring.

[0014] According to the utility model, further, blade mounting notches for accommodating blades are provided at both ends of the outer circumference of the positioning half ring, and the blades are fixedly mounted in the blade mounting notches.

[0015] According to the utility model, further, a first screw hole is provided at the upper and lower positions of the step shaft, and a second screw hole corresponding to the first screw hole is provided on the ring wall of the positioning half ring. The first screw hole and the second screw hole are connected by screws to achieve a fixed connection between the positioning half ring and the step shaft.

[0016] According to the present invention, further, there are four waist-shaped holes, which are evenly distributed along the outer circumference of the core shaft.

[0017] According to the present invention, further, there are two grooves, which are respectively arranged at the left and right ends of the positioning half ring.

[0018] The beneficial effect of the present invention is that before the groove butt welding of the pipe joint, the present device is first used to position the pipe joint for groove welding. After the welding operation is completed, the straightness of the pipe joint butt weld can be effectively guaranteed, thereby ensuring the quality of the product. Afterwards, the mandrel is clamped on the power equipment, and the product pipe is clamped and fixed on the power equipment platform. The power equipment causes the mandrel to rotate and gradually pull out, and the blade installed at the end of the positioning half ring can realize the boring processing action of the root of the pipe butt weld. When the mandrel is removed from the inside of the pipe, the function of machining and removing the weld nodule at the root of the pipe butt weld is realized, thereby reducing the process of manually grinding and removing the weld nodule at the root of the pipe, significantly improving the product manufacturing efficiency, and facilitating large-scale use in the production workshop.

[0019] The device of the present invention has the advantages of simple design and structure, low manufacturing cost, and convenient operation. Positioning half-rings of corresponding sizes can be selected for different pipe orifice inner diameters. The device of the present invention is highly practical and versatile, making it easy to implement on a large scale in production workshops. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of parts of a butt-jointed pipe according to the present invention;

[0021] Figure 2 This is a structural diagram of a pipe assembly butt connection and root processing device of the present invention;

[0022] Figure 3 This is a schematic structural diagram of the core shaft of the present utility model;

[0023] Figure 4 This is a schematic structural diagram of the positioning half ring of the utility model;

[0024] Figure 5 This is a schematic diagram of the installation of a pipe assembly butt connection and root processing device and butt pipes according to the present invention;

[0025] Figure 6This is a schematic diagram of a first working state of a pipe assembly butt connection and root processing device and a butt-jointed pipe according to the utility model;

[0026] Figure 7 The utility model is a schematic diagram of a second working state of a pipe assembly butt connection and root processing device and a butt-jointed pipe.

[0027] In the accompanying drawings,

[0028] 1-core shaft, 1-1-through hole, 1-2-stepped shaft, 1-3-first screw hole, 1-4-waist round hole, 2-positioning half ring, 2-1-stepped hole, 2-2-groove, 2-3-second screw hole, 2-4-blade mounting notch, 3-silicone ring, 4-screw, 5-blade. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that such equivalents also fall within the scope of the claims appended hereto.

[0030] See also Figure 1 、 Figure 2 and Figure 3 The embodiment of the present application discloses a pipe joint connection and root processing device, which is used to position the joint pipes of the joints, facilitates the welding of the two joint pipes while ensuring the straightness of the two joint pipes, reduces the probability of corners being generated at the welding point of the two joint pipes, and improves processing efficiency. It includes a core shaft 1, which is an elongated core shaft 1 with a coaxial through hole 1-1; two stepped shafts 1-2 are designed at both ends of the core shaft 1, and a first screw hole 1-3 is provided at the upper and lower positions of the stepped shaft 1-2 for connection with the positioning half ring 2 to be described in detail below. The outer diameter of the stepped shaft 1-2 is larger than the outer diameter of the core shaft 1.

[0031] In this embodiment, a waist-shaped hole 1-4 is provided at the center of the core shaft 1. There are four waist-shaped holes 1-4, which are evenly spaced along the outer circumference of the core shaft 1. Preferably, when viewed from the end face of the core shaft, the four waist-shaped holes 1-4 are respectively distributed on the upper, lower, left, and right surfaces of the core shaft 1. The stepped shafts 1-2 are symmetrically distributed on both sides of the waist-shaped hole 1-4.

[0032] In this example, see Figure 4, also includes a positioning half ring 2, the positioning half ring 2 has a semicircular ring-shaped cavity, wherein the openings of the two positioning half rings 2 are relatively fixed, and the stepped shaft 1-2 of the core shaft 1 is installed and fixed in the annular cavity formed by the two positioning half rings 2. A stepped hole 2-1 is provided in the cavity of the positioning half ring 2, and the stepped hole 2-1 is fitted and fixed with the stepped shaft 1-2 of the core shaft 1. Preferably, the top of the positioning half ring 2 has a second screw hole 2-3 corresponding to the first screw hole 1-3, and the rod of the screw 4 passes through the second screw hole 2-3 and is fixedly connected to the first screw hole 1-3 on the surface of the stepped shaft 1-2, thereby realizing the positioning of the positioning half ring 2 and the stepped shaft 1-2, avoiding position movement during the processing process and affecting the weld nodule removal effect.

[0033] The outer periphery of the positioning half ring 2 is provided with a groove 2-2 for receiving the silicone ring 3, thereby bundling the two positioning half rings 2 into a single structure. Preferably, there are two grooves 2-2, one on each end of the positioning half ring 2, with both ends secured by the silicone ring 3, forming a symmetrical fixation and ensuring the stability of the connection between the two positioning half rings 2.

[0034] Specifically, the outer walls of the positioning half ring 2 are provided with blade mounting notches 2-4 at both ends for accommodating blades 5, with the cutting edges of the blades 5 pointing relatively outward. During use, as the pipe is separated from the mandrel 1, the cutting edges of the blades 5 are used to remove weld bead at the root of the pipe butt weld. The blades 5 are secured in the blade mounting notches 2-4 by set screws.

[0035] See also Figure 5 、 Figure 6 and Figure 7 The operation steps of a pipe joint connection and root processing device are as follows:

[0036] 1. Measure the inner diameter of the butt joint of the assembled pipe to determine the inner diameter of the positioning half ring 2;

[0037] 2. Install the positioning half ring 2 on the stepped shaft 1-2 of the core shaft 1, combining the two positioning half rings 2 into an integral structure. Then use the silicone ring 3 to tie and secure the two ends of the positioning half ring 2; use screws to further secure the positioning half ring 2 to the core shaft 1;

[0038] 3. Use the blade positioning screw to install and fix the blade 5 in the blade mounting notch 2-4 of the positioning half ring;

[0039] 4. Put two product pipes on the outer periphery of this device. The position of the pipe butt weld should be located at the center of the waist hole 1-4 of the core shaft;

[0040] 5. Turn on the welding equipment and manually complete the pipe butt welding operation;

[0041] 6. Turn off the welding equipment;

[0042] 7. Transport the product pipe together with the device to the boring machine equipment, clamp and fix one end of the core shaft 1 in the device on the main shaft of the boring machine, clamp and fix the product pipe on the platform of the boring machine, and make the core shaft in the device rotate and be gradually pulled out from the product pipe through the rotation and withdrawal function of the main shaft of the boring machine; realize the boring processing action of the root of the butt weld of the pipe by the blade 5 installed at the end of the positioning half ring 2, and realize the machining removal function of the weld nodule at the root of the butt weld of the pipe while removing the core shaft 1 from the inside of the product pipe; 8. Complete the butt joint of the two pipe parts and the machining removal of the butt weld nodule.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form or substance. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the present invention, and these improvements and supplements should also be considered as the scope of protection of the present invention. Any technician familiar with this profession can make some changes, modifications and equivalent changes made by using the technical content disclosed above without departing from the spirit and scope of the present invention, which are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A pipe joint connection and root processing device, wherein: include, a core shaft having a through hole coaxial therewith; At least one stepped shaft is provided on the outer periphery of the core shaft; A positioning half ring, fixedly connected to the step shaft; A blade is arranged on the outer periphery of the positioning half ring, and the edge of the blade faces the weld bead position of the pipe.

2. A pipe joint connection and root processing device as claimed in claim 1, wherein: The positioning half ring is a semicircular cavity, and the openings of the two positioning half rings are relatively fixed, and the stepped shaft is installed and fixed in the cavity formed by the two positioning half rings.

3. A pipe joint connection and root processing device as claimed in claim 2, wherein: A stepped hole is provided in the cavity of the positioning half ring and is mounted in cooperation with the stepped shaft.

4. A pipe joint connection and root processing device as claimed in claim 1, wherein: A waist-shaped hole is provided at the center of the core shaft.

5. A pipe joint connection and root processing device as claimed in claim 4, wherein: There are two stepped shafts, which are respectively arranged on both sides of the waist circular hole.

6. A pipe joint connection and root processing device as claimed in claim 1, wherein: A groove is provided on the outer periphery of the positioning half ring, and a silicone ring is installed in the groove, through which the two positioning half rings are bundled and combined into an integrated structure.

7. A pipe joint connection and root processing device as claimed in claim 1, wherein: Blade mounting notches for accommodating blades are provided at both ends of the outer periphery of the positioning half ring, and the blades are fixedly mounted in the blade mounting notches.

8. A pipe joint connection and root processing device as claimed in claim 1, wherein: A first screw hole is provided at the upper and lower positions of the stepped shaft, and a second screw hole corresponding to the first screw hole is provided on the ring wall of the positioning half ring. The first screw hole and the second screw hole are connected by screws to achieve a fixed connection between the positioning half ring and the stepped shaft.

9. A pipe joint connection and root processing device as claimed in claim 4, wherein: There are four waist-shaped holes, which are evenly distributed along the outer circumference of the core shaft.

10. A pipe joint connection and root processing device as claimed in claim 6, wherein: There are two grooves, which are respectively arranged at the left and right ends of the positioning half ring.

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