CN219966976U - Pipe welding frock - Google Patents

Abstract

The utility model belongs to the technical field of pipe welding, and provides a circular pipe welding tool which comprises a base, two rotary displacers and a pneumatic positioning mechanism, wherein the base comprises two fixed seats which are correspondingly arranged; the two rotary position changing machines are respectively arranged on the fixed seat, are coaxially arranged and synchronously rotate; the pneumatic positioning mechanism is arranged between the two rotary displacers and comprises a cylinder and a stop block, the stop block is connected with the exposed end of a piston rod of the cylinder, and a limiting part is formed on the stop block. Based on above structure, two gyration position-changing machines centre gripping respectively wait welded pipe and drive synchronous rotation when the welding, and the cylinder drives the slider and makes spacing portion be in between two pipes that wait to weld, can guarantee the welding seam interval, avoids influencing the stability and the life of pipeline.

Description

Pipe welding frock

Technical Field

The utility model relates to the technical field of pipe welding, in particular to a circular pipe welding tool.

Background

The distance between the welding seams of the pipeline refers to the distance between the two welding seams when the pipeline is welded. The magnitude of this distance has a very important impact on the quality and service life of the pipeline. In the design and manufacturing process of the pipeline, the weld joint distance is a very important parameter, and strict control is required, and the size directly influences the strength and the stability of the pipeline. If the interval between the welding seams is too large, the strength of the pipeline is affected, and the problems of cracks, deformation and the like are easy to occur. If the welding seam spacing is too small, the condition of overlapping welding seams can occur during welding, so that the quality of the welding seams is reduced, and the stability and the service life of the pipeline are affected.

At present, the butt joint of the pipeline can be realized by the pipeline welding tool, but the problem that the distance between welding seams of the pipeline cannot be controlled exists, so that the stability and the service life of the pipeline are influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a circular tube welding tool, which aims to solve the problem that the stability and the service life of a pipeline are influenced by the fact that the weld joint distance of the pipeline cannot be controlled when the conventional circular tube is welded.

The utility model provides a circular tube welding tool, which comprises the following components:

the base comprises two fixing seats which are correspondingly arranged;

the two rotary displacement machines are respectively arranged on the fixed seat, are coaxially arranged and synchronously rotate;

the pneumatic positioning mechanism is arranged between the two rotary displacers and comprises a cylinder and a stop block, the stop block is connected with the exposed end of a piston rod of the cylinder, and a limiting part is formed on the stop block.

According to the technical scheme, the two rotary displacers respectively clamp the round pipes to be welded in the welding process, and the cylinder drives the sliding block to enable the limiting part to be positioned between the two round pipes to be welded, so that the welding gap is ensured.

Optionally, the gyration positioner includes air chuck, chuck keysets and drive assembly, drive assembly includes driving shaft and driven shaft, chuck keysets the driven shaft with be provided with the gear that meshes in proper order on the driving shaft.

Optionally, the device further comprises a rotary driving motor, wherein the driving shafts of the two rotary displacers are connected through a transmission shaft, and the rotary driving motor drives any driving shaft of the two rotary displacers.

Optionally, the dog still includes connecting portion and extension, connecting portion with the piston rod of cylinder exposes the end and is connected, connecting portion extension with spacing portion connects gradually, just extension extremely spacing portion has the trend of tightening up.

Optionally, the device further comprises a milling feeding mechanism, wherein the milling feeding mechanism is arranged between the fixing seats and opposite to the pneumatic positioning mechanism; the milling feed mechanism comprises:

milling a feeding guide rail group;

the screw rod is driven by a screw rod driving motor;

the milling feeding sliding table is connected with the screw rod and is arranged on the milling feeding guide rail group in a sliding manner;

and the electric spindle is connected with the milling feeding sliding table, and a milling cutter is arranged on the electric spindle.

By adopting the technical scheme, the utility model has the following technical effects:

according to the circular tube welding tool provided by the utility model, during welding, the two rotary displacers respectively clamp the circular tubes to be welded, and the cylinder drives the sliding block to enable the limiting part to be positioned between the two circular tubes to be welded, so that the welding gap is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of a circular tube welding tool according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the portion A shown in FIG. 1;

fig. 3 is an internal schematic diagram of a circular tube welding tool according to an embodiment of the present utility model;

fig. 4 is another schematic diagram of a welding tool for a round tube according to an embodiment of the present utility model;

fig. 5 is a schematic view of a milling feeding mechanism according to an embodiment of the present utility model.

Reference numerals:

1-a base; 11-a fixed seat; 12-supporting seat; 2-a rotary positioner; 21-an air chuck; 22-chuck adapter plate; 23-a transmission assembly; 231-driving shaft; 232-a driven shaft; 233-a slewing drive motor; 234-drive shafts; 3-a pneumatic positioning mechanism; 31-cylinder; 32-a stop; 321-a limiting part; 322-extensions; 323-a connection; 4-milling feeding mechanism; 41-milling a feed rail set; 42-screw rod; 421-a lead screw channel motor; 43-milling a feeding slipway; 431—motorized spindle mount; 44-motorized spindle; 45-milling cutter; 46-milling cutter shield.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1-3, the circular tube welding tool provided by the embodiment comprises a base 1, two rotary displacers 2 and a pneumatic positioning mechanism 3, wherein the base 1 comprises two fixed seats 11 which are correspondingly arranged; the two rotary position shifters 2 are respectively arranged on the fixed seat 11, and the two rotary position shifters 2 are coaxially arranged and synchronously rotate; the pneumatic positioning mechanism 3 is arranged between the two rotary displacers 2, the pneumatic positioning mechanism 3 comprises an air cylinder 31 and a stop block 32, the stop block 32 is connected with the exposed end of a piston rod of the air cylinder 31, and a limiting part 321 is formed on the stop block 32.

Based on the above structure, when welding, two rotary displacers 2 respectively clamp the round pipes to be welded and drive to synchronously rotate, and the cylinder 31 drives the sliding block 32 to enable the limiting part 321 to be positioned between the two round pipes to be welded, so that welding gaps can be ensured.

Optionally, the rotary positioner 2 includes an air chuck 21, a chuck adapter plate 22 and a transmission assembly 23, the chuck adapter plate 22 is disposed on the outer side of the air chuck 21, the transmission assembly 23 includes a driving shaft 231 and a driven shaft 232, and gears meshed in sequence are disposed on the chuck adapter plate 22, the driven shaft 232 and the driving shaft 231. Specifically, a first gear is disposed on the driving shaft 231, a second gear is disposed on the driven shaft 232, a third gear is connected to the outer side of the chuck adapter plate 22, and the driving shaft 231 is driven to rotate by a motor, so as to drive the air chuck 21 to rotate. In fig. 3, the first gear, the second gear, and the third gear are not specifically indicated, and those skilled in the art can implement them based on the foregoing description.

Referring to fig. 3, the rotary driving motor 233 is further included, and the driving shafts 231 of the two rotary displacers 2 are connected through a transmission shaft 234, and the rotary driving motor 233 drives any driving shaft 231 of the two rotary displacers 2. Therefore, the rotary driving motor 233 can realize the synchronous rotation of the rotary positioner 2 only by driving any driving shaft 231, so that the round tube clamped by the two rotary positioners 2 can be driven to synchronously rotate.

Optionally, the stop 32 further includes a connecting portion 323 and an extending portion 322, the connecting portion 323 is connected with an exposed end of a piston rod of the cylinder, the connecting portion 323, the extending portion 322 and the limiting portion 321 are sequentially connected, and the extending portion 322 has a tightening trend to the limiting portion 321. As shown in fig. 2, the tightening trend of the limiting portion 321 is different from the tightening trend of the extending portion 322, and the tightening trend of the extending portion 322 is greater than the tightening trend of the limiting portion 321, so that the structure is suitable for welding round pipes with different welding seam spacing requirements.

As shown in fig. 4-5, the milling and feeding mechanism 4 is further included, and the milling and feeding mechanism 4 is arranged between two fixing seats 11 and opposite to the pneumatic positioning mechanism 3.

Specifically, the milling feed mechanism 4 includes a milling feed guide rail group 41, a screw 42, a milling feed slide table 43, and an electric spindle 44, the screw 42 being driven by a screw drive motor 421; the milling feed sliding table 43 is connected with the screw rod 42 and is arranged on the milling feed guide rail group 41 in a sliding manner; the electric spindle 44 is connected with the milling feed sliding table 43, and a milling cutter 45 is arranged on the electric spindle 44.

The milling feeding mechanism 4 is arranged on the opposite side of the pneumatic positioning mechanism 3 through a supporting seat 12; the round tube is positioned between the milling feeding mechanism 4 and the pneumatic positioning mechanism 3, the milling feeding guide rail set 41 is installed on the supporting seat 12, the screw rod 42 is connected with a sliding block, the milling feeding sliding table 43 is connected with the sliding block, the milling feeding sliding table 43 further comprises an electric spindle installation part 431, the electric spindle 44 is installed in the electric spindle installation part 431, and the milling cutter 45 is installed on the electric spindle 44. Based on the structure, the integrated setting of welding and milling tools is realized, and the equipment integration level is improved. Optionally, a milling cutter shield 46 is provided in addition to the milling cutter 45.

In the description of the present utility model, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims (5)

1. The utility model provides a pipe welding frock which characterized in that includes:

the base comprises two fixing seats which are correspondingly arranged;

the two rotary displacement machines are respectively arranged on the fixed seat, are coaxially arranged and synchronously rotate;

the pneumatic positioning mechanism is arranged between the two rotary displacers and comprises a cylinder and a stop block, the stop block is connected with the exposed end of a piston rod of the cylinder, and a limiting part is formed on the stop block.

2. The pipe welding tool according to claim 1, wherein the rotary positioner comprises an air chuck, a chuck adapter plate and a transmission assembly, the transmission assembly comprises a driving shaft and a driven shaft, and gears meshed in sequence are arranged on the chuck adapter plate, the driven shaft and the driving shaft.

3. The welding fixture for round pipes according to claim 2, further comprising a rotary driving motor, wherein the driving shafts of the two rotary displacers are connected through a transmission shaft, and the rotary driving motor drives any driving shaft of the two rotary displacers.

4. The pipe welding tool according to claim 1, wherein the stop block further comprises a connecting portion and an extending portion, the connecting portion is connected with an exposed end of a piston rod of the cylinder, the connecting portion, the extending portion and the limiting portion are sequentially connected, and the extending portion has a tightening trend to the limiting portion.

5. The pipe welding tool of claim 1, further comprising a milling feed mechanism disposed between the holders and opposite the pneumatic positioning mechanism; the milling feed mechanism comprises:

milling a feeding guide rail group;

the screw rod is driven by a screw rod driving motor;

the milling feeding sliding table is connected with the screw rod and is arranged on the milling feeding guide rail group in a sliding manner;

and the electric spindle is connected with the milling feeding sliding table, and a milling cutter is arranged on the electric spindle.