CN117564363A

CN117564363A - Elbow automatic welding groove processing equipment and processing method

Info

Publication number: CN117564363A
Application number: CN202410063751.1A
Authority: CN
Inventors: 王聪; 冯英超; 谷征满
Original assignee: 东北大学
Priority date: 2024-01-17
Filing date: 2024-01-17
Publication date: 2024-02-20
Anticipated expiration: 2044-01-17
Also published as: CN117564363B

Abstract

The application provides elbow automatic welding groove processing equipment and a processing method, and relates to the technical field of local cutting. According to the automatic elbow welding groove processing equipment provided by the application, the numerical values of 4 positions on the upper, lower, left and right of the outer wall of the distance measuring component arranged on the cutter disc of the cutting mechanism and the outer side of the end face of the elbow are measured and respectively recorded as a first numerical value, a second numerical value, a third numerical value and a fourth numerical value. On the basis, the position of the elbow in the first horizontal direction relative to the cutting mechanism and the position of the elbow in the vertical direction relative to the cutting mechanism are adjusted, so that the first numerical value and the second numerical value are within a preset tolerance range, and the third numerical value and the fourth numerical value are within the preset tolerance range, the concentricity of the circumferential direction of the end face of the elbow and the cutter disc is ensured, and the centering of the elbow and the cutter disc is facilitated.

Description

Elbow automatic welding groove processing equipment and processing method

Technical Field

The application relates to the technical field of local cutting, in particular to an automatic elbow welding groove processing device and a processing method.

Background

In the installation process of the nuclear power nuclear island, the process pipeline with the diameter of 60.3-168.3mm and the thickness of less than or equal to 10mm accounts for 69.6% of the total butt welding ports of the installation, and 79.2% of the butt welding ports are the butt welding ports of the elbow and the pipe fitting. In the prior art, most of the process pipelines are welded by manual welding, and the other part of the process pipelines are welded by manual welding, bottoming and automatic welding, filling and capping, so that the problem of resource shortage of high-skill welders is solved, and the trend of the process pipelines is that all the process pipelines are welded by automatic welding.

The manual welding groove of the elbow is mostly processed by flame cutting, manual polishing by a polishing machine or turning by an external bevel lathe, and the like, the surface accuracy of the manual welding groove of the processed elbow is low, and large internal offset exists after the manual welding groove is butted with a pipeline group, so that the group pairing requirements of good size consistency of the automatic welding groove, and the group pairing gap and the internal offset tend to be 0 cannot be met. If manual welding grooves are adopted for automatic welding and backing welding, the backing welding beads are extremely easy to have defects of burning through, flash, incomplete penetration or incomplete fusion. Therefore, the processing quality and the processing precision of the automatic welding groove become the key for ensuring the field welding quality.

However, the main flow elbow beveling machine in the prior art is difficult to realize the fixing and centering operation of the elbow, and is particularly difficult to be suitable for fixing and centering of the elbow with different angles, which is not ideal. If the axis of the port at which the elbow is machined is not coaxial with the axis of the rotating system, groove misalignment can occur. The numerical control machine tool for machining the elbow bevel can meet the requirement on the bevel size, but has high machining cost and high requirement on workers, and is not beneficial to on-site popularization and application.

Therefore, there is still room for improvement in the existing elbow beveling machines.

Disclosure of Invention

In view of this, the present application provides an elbow automatic welding groove processing device and processing method, and aims to solve the above technical problems to a certain extent.

In a first aspect, the present application provides an elbow automatic welding groove processing apparatus for processing an automatic welding groove of an elbow, comprising:

a positioning mechanism including a plurality of clamping members, each clamping member having a clamping recess, an inner side of the clamping recess having at least two portions for abutting against an outer side of the elbow, wherein the plurality of clamping members includes a first clamping member and a second clamping member, which are opposed to each other in a direction in which the clamping recess opens, the first clamping member being configured to be capable of approaching the second clamping member to commonly clamp the elbow;

the first adjusting mechanism is connected with the positioning mechanism and is used for adjusting the position of the positioning mechanism in a first horizontal direction;

the cutting mechanism is used for cutting the elbow to process an automatic welding groove of the elbow, is arranged at intervals with the positioning mechanism, comprises a cutter head capable of moving along a second horizontal direction and a ranging component detachably arranged on the cutter head, and is used for measuring the distance between the position of the ranging component and the end face of the elbow; the cutterhead is configured to be rotatable to adjust the position of the ranging member;

And the second adjusting mechanism is connected with the cutting mechanism and is used for adjusting the position of the cutting mechanism in the vertical direction.

Preferably, the first adjustment mechanism comprises a first adjustment assembly and a second adjustment assembly connected to each other, the first adjustment assembly being connected to the positioning mechanism, the first adjustment assembly being adapted to drive the positioning mechanism in rotation about an axis extending in a vertical direction, the axis passing through the positioning mechanism.

Preferably, the positioning mechanism comprises:

the fixing component is connected with the first adjusting mechanism, and the second clamping component is fixedly arranged on the fixing component;

the motion assembly comprises a connecting member and a guide member, wherein the guide member is arranged on the fixed member, the guide member is provided with a first guide part extending along the vertical direction, the connecting member is provided with a second guide part extending along the vertical direction, one of the first guide part and the second guide part penetrates through the other of the first guide part and the second guide part, and the first guide part and the second guide part are movably matched along the vertical direction.

Preferably, the movement assembly further comprises:

a rod member penetrating the connection member, the rod member being provided on the fixing member, the rod member having an external thread portion;

a biasing member having an internal thread portion, the biasing member being fitted over the lever member via a screw fit between the internal thread portion and the external thread portion;

and a reset member between the connection member and the fixing member, the reset member abutting against a lower side of the connection member and an upper side of the fixing member, the reset member configured to store elastic potential energy when a distance between the connection member and the fixing member is reduced.

Preferably, the clamping recess includes a first positioning plane and a second positioning plane connected to each other, the first positioning plane intersecting the second positioning plane, the first positioning plane having a first position for abutment with the outside of the elbow, the second positioning plane having a second position for abutment with the outside of the elbow.

Preferably, an opening direction of the clamping recess of the first clamping member and an opening direction of the clamping recess of the second clamping member are opposite to each other in a vertical direction.

Preferably, the plurality of clamping members includes a plurality of pairs of first and second clamping members disposed at intervals along an extending direction of the elbow.

Preferably, the cutter head also comprises a cross backup plate which is detachably arranged on the cutter head and is used for being attached to the end face of the elbow, the cross backup plate comprises a first strip-shaped part and a second strip-shaped part which are perpendicular to each other, wherein two ends of the first strip-shaped part exceed the end face of the elbow, and two ends of the second strip-shaped part exceed the end face of the elbow;

the cutting mechanism further comprises a first cutter, a second cutter and a third cutter, wherein the first cutter, the second cutter and the third cutter are arranged on the cutter head, and the first cutter, the second cutter and the third cutter are configured to process inner boring, grooves and blunt edges on the end face of the elbow.

In a second aspect, the present application provides a method for automatically welding a groove of an elbow, including:

clamping the elbow with a plurality of clamping members, wherein each clamping member has a clamping recess, an inner side of the clamping recess has at least two portions for abutting against an outer side of the elbow, the plurality of clamping members including a first clamping member and a second clamping member, the clamping recesses opening in directions opposite to each other, the first clamping member being configured to be capable of being brought close to the second clamping member to jointly clamp the elbow;

Measuring values of a reference position on a cutting mechanism for cutting the elbow to process an automatic welding groove of the elbow and 4 positions on the outer wall of the outer side of the end face of the elbow, namely a first value, a second value, a third value and a fourth value;

the position of the elbow in the first horizontal direction relative to the cutting mechanism and the position in the vertical direction relative to the cutting mechanism are adjusted such that the first and second values are within a predetermined tolerance range and such that the third and fourth values are within a predetermined tolerance range.

Preferably, it comprises:

the cutting mechanism is provided with a cross backup plate, wherein the cross backup plate comprises a first strip-shaped part and a second strip-shaped part which are perpendicular to each other, two ends of the first strip-shaped part exceed the end face of the elbow, and two ends of the second strip-shaped part exceed the end face of the elbow;

and adjusting the position of the elbow so that the elbow rotates around an axis extending along the vertical direction and the position of the elbow in the first horizontal direction, and further enabling the end face of the elbow to be attached to the cross backup plate.

According to the elbow automatic welding groove processing equipment provided by the application, the first clamping member and the second clamping member can clamp the elbow from two sides of the elbow, which are opposite to each other, and as the first clamping member and the second clamping member are provided with at least two parts which are abutted to the outer side of the elbow, the outer side of the elbow is abutted by at least four parts. Since the three points, which are not on the same straight line, define a plane, the elbow is positioned by the aforementioned at least four portions such that the elbow is stably clamped in place, thereby achieving a relatively efficient fixing of the elbow.

The values of the upper, lower, left and right 4 positions of the outer wall of the distance measuring component arranged on the cutter disc of the cutting mechanism and the outer side of the end face of the elbow are respectively recorded as a first value, a second value, a third value and a fourth value. On the basis, the position of the elbow in the first horizontal direction relative to the cutting mechanism and the position of the elbow in the vertical direction relative to the cutting mechanism are adjusted, so that the first numerical value and the second numerical value are within a preset tolerance range, and the third numerical value and the fourth numerical value are within the preset tolerance range, the concentricity of the circumferential direction of the end face of the elbow and the cutter disc is ensured, and the centering of the elbow and the cutter disc is facilitated.

In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic diagram of a three-dimensional view of an elbow automatic welding groove processing apparatus provided according to an embodiment of the present application.

Fig. 2 illustrates a schematic diagram of yet another three-dimensional view of an elbow automatic welding groove machining apparatus provided in accordance with an embodiment of the present application.

Fig. 3 is a schematic diagram illustrating a plan view of an elbow automatic welding groove processing apparatus according to an embodiment of the present application.

Fig. 4 is a schematic diagram illustrating yet another plan view of an elbow automatic welding groove machining apparatus provided according to an embodiment of the present application.

Fig. 5 shows a schematic diagram of a plan view of a cutting mechanism of an elbow automatic welding groove machining apparatus according to an embodiment of the present application.

Fig. 6 illustrates a schematic diagram of yet another plan view of a cutting mechanism of an elbow automatic welding groove machining apparatus provided in accordance with an embodiment of the present application.

Fig. 7 is a schematic diagram illustrating a plan view of a first adjustment mechanism and a second adjustment mechanism of an elbow automatic welding groove machining apparatus according to an embodiment of the present application.

Fig. 8 is a schematic diagram illustrating still another plan view of a first adjustment mechanism and a second adjustment mechanism of an elbow automatic welding groove machining apparatus according to an embodiment of the present application.

Fig. 9 is a schematic diagram illustrating a plan view of a positioning mechanism clamping an elbow of an elbow automatic welding groove machining apparatus according to an embodiment of the present application.

Fig. 10 is a schematic diagram illustrating still another plan view of a positioning mechanism clamping an elbow of an elbow automatic welding groove machining apparatus according to an embodiment of the present application.

Fig. 11 illustrates a schematic diagram of a three-dimensional view of a second adjustment assembly of an elbow automatic welding groove machining apparatus provided in accordance with an embodiment of the present application.

Fig. 12 illustrates a schematic diagram of a three-dimensional view of a first adjustment assembly of an elbow automatic welding groove machining apparatus provided in accordance with an embodiment of the present application.

Fig. 13 is a schematic diagram illustrating a three-dimensional view of a second adjustment mechanism of an elbow automatic welding groove machining apparatus according to an embodiment of the present application.

Fig. 14 shows a schematic diagram of a cutterhead and a cutter of an elbow automatic welding groove machining device according to an embodiment of the present application.

Reference numerals:

100-positioning mechanism; 110-a first clamping member; 111-a first positioning plane; 112-a second positioning plane; 120-a second clamping member;

200-a first adjustment mechanism; 200 a-a first adjustment assembly; 200 b-a second adjustment assembly; 210-a guide member; 220-adjusting the nut;

300-a cutting mechanism; 310-cutterhead; 320-driving a motor; 330-a cutter feeding and retracting hand wheel; 340-a tool holder; 350-a first cutter; 360-a second cutter; 370-third tool; 380-a cross backup plate; 390-feed limit member;

400-a second adjustment mechanism; 410-Y axis adjustment handle; 420-a first base; 430-mounting holes;

510-X axis adjusting handle; 520-a second base; 530-X axis sliding plate; 540-locking handle;

610-rotating a disc; a 620-C axis adjustment handle; 700-elbow;

f1-a first horizontal direction; f2-a second horizontal direction.

Detailed Description

The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.

According to a first aspect of the embodiments of the present application, an automatic elbow welding groove machining apparatus is provided, and a structure and an operation principle of the automatic elbow welding groove machining apparatus will be specifically described below with reference to fig. 1 to 14.

According to the elbow automatic welding groove processing equipment provided by the embodiment of the application, which is used for processing an automatic welding groove of an elbow 700, the elbow automatic welding groove processing equipment comprises a positioning mechanism 100, a first adjusting mechanism 200, a second adjusting mechanism 400 and a cutting mechanism 300.

In an embodiment, the positioning mechanism 100 comprises a plurality of clamping members, each clamping member having a clamping recess with at least two portions on an inner side thereof for abutting against an outer side of the elbow 700, wherein the plurality of clamping members comprises a first clamping member 110 and a second clamping member 120 with the clamping recesses opening in a direction opposite to each other, the first clamping member 110 being configured to be able to approach the second clamping member 120 for jointly clamping the elbow 700. In an embodiment, the first adjusting mechanism 200 is connected to the positioning mechanism 100, and the first adjusting mechanism 200 is used to adjust the position of the positioning mechanism 100 in the first horizontal direction F1. In an embodiment, the second adjustment mechanism 400 is connected to the cutting mechanism 300, and the second adjustment mechanism 400 is used to adjust the position of the cutting mechanism 300 in the vertical direction.

In an embodiment, the cutting mechanism 300 is used for cutting the elbow 700 to process an automatic welding groove of the elbow 700, the cutting and positioning mechanism 100 is arranged at intervals, the cutting mechanism 300 comprises a cutter head 310 and a ranging component detachably arranged on the cutter head 310, and the ranging component is used for measuring the distance between the position of the ranging component and the end face of the elbow 700; the cutterhead 310 is configured to be rotatable to adjust the position of the ranging member.

As such, according to the elbow automatic welding groove processing apparatus provided in the embodiments of the present application, the first clamping member 110 and the second clamping member 120 can clamp the elbow 700 from two sides of the elbow 700 opposite to each other, and since the first clamping member 110 and the second clamping member 120 each have at least two portions abutting on the outside of the elbow 700, this enables the outside of the elbow 700 to be abutted by at least four portions. Because the three points that are not collinear define a plane, elbow 700 is positioned by at least four of the aforementioned portions such that elbow 700 is stably clamped in place, thereby achieving a relatively efficient securement of elbow 700.

In the embodiment, the values of the upper, lower, left and right 4 positions of the outer wall of the outer side of the end face of the distance measuring member and the elbow 700 provided on the cutter head 310 of the cutting mechanism 300 are respectively recorded as a first value, a second value, a third value and a fourth value. On the basis, the position of the elbow 700 relative to the cutting mechanism 300 in the first horizontal direction F1 and the position of the elbow 700 relative to the cutting mechanism 300 in the vertical direction, that is, the position of the elbow 700 in the horizontal plane, are adjusted so that the first numerical value and the second numerical value are within a predetermined tolerance range, and the third numerical value and the fourth numerical value are within a predetermined tolerance range, thereby ensuring concentricity of the end face of the elbow 700 and the cutterhead 310 in the circumferential direction, and being beneficial to centering the elbow 700 and the cutterhead 310.

In an embodiment, the distance measuring member may be, for example, a dial gauge, through which the above measurement is made by contact with the end face of elbow 700. In other examples, the distance measuring means may also be, for example, a distance measuring laser, which makes the above-mentioned measurements in a non-contact manner.

It should be noted that the first value and the second value are also included in the predetermined tolerance range where they are equal, and similarly, the third value and the fourth value are also included in the predetermined tolerance range where they are equal.

In an embodiment, the "opening direction" of the clamping recess is understood to include the meaning that the clamping recess has an opening communicating the external environment with the interior space defined by the clamping recess, the direction in which the opening is oriented, i.e. the opening direction of the clamping recess.

In an embodiment, the clamping recess can also be utilized to accommodate portions of the outside of elbow 700 with an interior space defined by the clamping recess, thereby making the positioning of elbow 700 more reliable.

In an embodiment, the cutter head 310 of the cutting mechanism 300 is a rotatable structure, on which not only the distance measuring member (for example, the distance measuring member is detachably mounted by a bolt) but also a cutter for machining an automatic groove of the elbow 700 can be detachably mounted, and when the cutter head 310 rotates, the cutter is driven to rotate around the axis of the cutter head 310, so that the elbow 700 is cut.

In this embodiment, the rotation of the cutterhead 310 may be implemented by the driving motor 320 in the cutting mechanism 300 and a decelerator disposed in the cutting mechanism 300 and located before the driving motor 320 and the cutterhead 310, which will not be described in detail.

In the embodiment, as an example, the first horizontal direction F1 and the second horizontal direction F2 may be perpendicular to each other, where the first horizontal direction F1 may be defined as an X-axis direction and the vertical direction may be defined as a Y-axis direction.

According to the elbow automatic welding groove machining apparatus provided in the embodiment of the present application, the first adjusting mechanism 200 may include a first adjusting assembly 200a and a second adjusting assembly 200b connected to each other, the first adjusting assembly 200a may be connected to the positioning mechanism 100, and the first adjusting assembly 200a may be used to drive the positioning mechanism 100 to rotate about an axis (i.e., a C-axis described below) extending in a vertical direction, which passes through the positioning mechanism 100.

In an embodiment, the second adjustment assembly 200b may be a slide plate assembly for adjusting the position of the positioning mechanism 100 in the first horizontal direction F1, which may be of an existing construction. The first adjustment assembly 200a may include a rotating disc 610 having an index, as may be known in the art, as shown in fig. 1 and 2, where the axis provided by the first adjustment assembly 200a may be defined as the C-axis (indicated by the letter C in fig. 1 and 2), where the C-axis may be the center of the rotating disc 610, i.e., the axis of the rotating disc 610. Thus, the first adjustment assembly 200a is formed as a substantially C-axis adjustment assembly.

In an embodiment, the provision of the first adjustment assembly 200a further facilitates adjusting the attitude of the elbow 700 within the space, thereby facilitating the fixing and centering operations of the elbow 700.

The elbow automatic welding groove machining equipment provided according to the embodiment of the application, wherein the positioning mechanism 100 can comprise a fixed component and a moving component. Specifically, the fixing member may be connected with the first adjustment mechanism 200 (e.g., with the first adjustment assembly 200a of the first adjustment mechanism 200), and the second clamping member 120 is fixedly disposed on the fixing member. In an embodiment, the fixing member may be formed as a seat member in a stepped structure, which may be provided, for example, at an upper end surface of the rotating disc 610 of the first adjustment assembly 200a so as to be rotatable with the rotating disc 610.

In an embodiment, the moving assembly may include a connection member and a guide member 210, the guide member 210 may be disposed on the fixed member, the guide member 210 may have a first guide portion extending in a vertical direction, the connection member may have a second guide portion extending in the vertical direction, one of the first guide portion and the second guide portion is penetrated through the other of the first guide portion and the second guide portion, and the first guide portion and the second guide portion are movably engaged in the vertical direction.

In an embodiment, the first guiding portion may be, for example, a rod portion, and the second guiding portion may be, for example, a hole portion, that is, the connecting member may be provided with a hole portion, by which the connecting member may be sleeved outside the rod portion of the first guiding portion, so that the movement of the connecting member relative to the first guiding portion is guided by the sliding fit of the hole portion and the rod portion, so that the connecting member moves in the vertical direction, thereby facilitating the assurance of the stability and accuracy of the movement of the connecting member.

In an embodiment, the second clamping member 120 is arranged on the fixing member, for example, may be arranged on the upper surface of the fixing member, so that the elbow 700 may be placed on the second clamping member 120, and then the elbow 700 is clamped close to the second clamping member 120 by using the first clamping member 110, which is advantageous in that the gravity of the elbow 700 itself may cause the elbow 700 to form a relatively stable fit with the second clamping member 120, i.e., even without being abutted by the first clamping member 110, the elbow 700 may be placed on the second clamping member 120 to reach an equilibrium state due to its own gravity. This makes it unnecessary to consider the downward movement tendency of the elbow 700 due to the gravity of the elbow 700 itself during positioning, which makes positioning of the elbow 700 difficult and adversely affects the accuracy of positioning.

In an embodiment, the guiding member 210 may have a head portion for an operator to hold and apply force, and the rod portion may have an external thread at a distal end thereof, so that the guiding member 210 may be screwed to the fixing member by forming an internal thread hole on an upper end surface of the fixing member.

In an embodiment, the connection member may have a bar shape, and one end in the extending direction thereof may be provided with the hole portion, which is sleeved outside the rod portion of the guide member 210 as described above, so as to be slidable with respect to the rod portion of the guide member 210.

According to the elbow automatic welding groove processing equipment provided by the embodiment of the application, the motion assembly can further comprise a rod component, a force application component and a reset component. In an embodiment, the rod member may be provided to penetrate the connection member, the rod member may be provided to the fixing member, and the rod member may have an external screw portion.

In an embodiment, the force application member may be abutted against an upper side of the connection member facing away from the fixing member, the force application member may have an internal threaded portion, and the force application member may be sleeved on the lever member via a screw fit of the internal threaded portion and the external threaded portion. In an embodiment, the reset member may be located between the connection member and the fixing member, the reset member may abut against a lower side of the connection member and an upper side of the fixing member, and the reset member may be configured to store elastic potential energy when a distance between the connection member and the fixing member is reduced.

Thus, in an embodiment, the elbow 700 may be clamped in place by screwing the force applying member such that the force applying member moves along the rod member, e.g., downward along the rod member, such that the force applying member moves downward against the connecting member, such that the first clamping member 110 connected to the connecting member also moves downward, enabling engagement with the second clamping member 120.

In an embodiment, the return member is capable of continuing to apply an upward force to the connecting member due to the elastic potential energy stored as the distance between the connecting member and the fixing member decreases, the connecting member being movable upward via the force applied by the return member upon screwing the force applying member such that the force applying member moves upward along the lever member, thereby returning. As an example, in an embodiment, the return member may be, for example, a coil spring that is sleeved outside the lever member.

In an embodiment, the force applying member may be, for example, an adjustment nut 220 and the rod member may be, for example, a screw. In an embodiment, the connection member may be provided with a kidney-shaped hole formed along an extension direction of the connection member, and the screw may be inserted into the kidney-shaped hole.

According to the elbow automatic welding groove processing device provided by the embodiment of the application, the clamping concave portion may include the first positioning plane 111 and the second positioning plane 112 connected with each other, the first positioning plane 111 may intersect with the second positioning plane 112, specifically, an included angle between the first positioning plane 111 and the second positioning plane 112 may be, for example, an obtuse angle, the first positioning plane 111 may have a first position for abutting with an outer side of the elbow 700, and the second positioning plane 112 may have a second position for abutting with the outer side of the elbow 700.

In an embodiment, the first positioning plane 111 and the second positioning plane 112 form a substantial angular structure by intersecting, and when the clamping recess formed by the angular structure abuts against the outer side of the elbow 700, the first positioning plane 111 and the second positioning plane 112 are tangential to the circular outer contour due to the circular outer contour of the elbow 700. That is, the first locating plane 111 is tangential to the outer contour of the elbow 700 at a first location and the second locating plane 112 is tangential to the outer contour of the elbow 700 at a second location.

An advantage of the first positioning plane 111 and the second positioning plane 112 is that when both the first positioning plane 111 and the second positioning plane 112 abut the outside of the elbow 700, the outside of the elbow 700 is naturally tangential to the first positioning plane 111 and the second positioning plane 112, such tangency being such that the centre of the elbow 700 passes through the angular line of the angular structure formed by the first positioning plane 111 and the second positioning plane 112, as seen in the axial direction of the elbow 700. Thus, by this positioning, the elbow 700 is conveniently and accurately positioned, and the subsequent centering operation is facilitated.

And since the first clamping member 110 and the second clamping member 120 have the same structure, when the first clamping member 110 and the second clamping member 120 are engaged with each other, the outer side of the elbow 700 has four tangential positions to the two first positioning planes 111 and the two second positioning planes 112, which are not on the same straight line, and one plane can be determined. That is, the use of the first positioning plane 111 and the second positioning plane 112 to form the clamping recess ensures both that the second clamping member 120, when supporting the elbow 700 alone, is already able to stabilize the supporting elbow 700 and achieve preliminary positioning by the two positions provided by the second clamping member 120, and that effective clamping positioning of the elbow 700 is achieved when mating the first clamping member 110.

In an embodiment, the first clamping member 110 and the second clamping member 120 may each be formed as a "V" shaped clamp block.

According to the elbow automatic welding groove processing device provided by the embodiment of the application, the plurality of clamping members can comprise a plurality of pairs of first clamping members 110 and second clamping members 120, and the plurality of pairs of first clamping members 110 and second clamping members 120 are arranged at intervals along the extending direction of the elbow 700. As such, it is advantageous to further improve the reliability of the positioning of elbow 700, and as an example, in an embodiment, the plurality of clamping members may include two pairs of first clamping members 110 and second clamping members 120, and the two pairs of first clamping members 110 and second clamping members 120 may be respectively clamped at two ends of elbow 700.

According to the elbow automatic welding groove processing equipment that this application embodiment provided can also include cross backup plate 380, and cross backup plate 380 can detachably set up in blade disc 310, and cross backup plate 380 can be used for laminating with the terminal surface of elbow 700, and cross backup plate 380 can include first bar portion and the second bar portion of mutually perpendicular, and the terminal surface of elbow 700 is surpassed at the both ends of first bar portion, and the terminal surface of elbow 700 is surpassed at the both ends of second bar portion. Thus, in an embodiment, the position of elbow 700 (i.e., the position in the first horizontal direction F1 and the circumferential position of rotation about the C-axis) is adjusted such that the end surface of elbow 700 is in contact with cross-backup 380, such that the end surface of elbow 700 is also parallel to cutterhead 310, thereby ensuring that the flatness of the end surface of elbow 700 and cutterhead 310 are satisfactory.

Further, in an embodiment, depending on the location of clamping elbow 700, first clamping member 110 may be attributed to an upper clamp and second clamping member 120 may be attributed to a lower clamp. In connection with the above description, the upper and lower clamps each comprise two "V" shaped clamp blocks, four "V" shaped clamp blocks up and down, each having two contact points (i.e., two contact positions) with the elbow 700, i.e., clamping the elbow 700 by 8 different positions of contact points.

In an embodiment, the lower clamp block is a fixed clamp block, the upper clamp block is a movable clamp block (i.e., a clamp block capable of moving in a vertical direction), the movable clamp block is mounted on (i.e., penetrated by) the screw, as described above, the elbow 700 is compressed by rotating the nut such that the nut moves down on the screw (the clamp block is reset by the spring after the nut is loosened, as described above), and the compression and the release of the upper clamp are sequentially achieved. The elbow 700 to be machined is placed on the lower clamp, the upper clamp is placed on the upper portion of the elbow 700, and the nut is tightened to clamp the elbow 700.

In an embodiment, the second adjusting mechanism 400 (i.e., the Y-axis adjusting mechanism) adjusts the up and down movement of the cutting mechanism 300 to be coincident with (centered on) the center of the elbow 700, the screw bracket is mounted on the floor of the apparatus, and by rotating the second adjusting mechanism 400, that is, the adjusting handle of the Y-axis adjusting mechanism, the wedge block in the second adjusting mechanism 400 moves along the first horizontal direction F1, while the main machine mounting plate (for mounting the cutting main machine and the cutterhead 310) of the cutting main body of the cutting mechanism 300 moves up and down along the guide shaft of the cutting mechanism 300 (the guide shaft is disposed above the base of the processing apparatus, the wedge block is provided with a kidney-shaped hole extending along the second horizontal direction F2, and the guide shaft is penetrated in the kidney-shaped hole). By manual measurement, the Y-axis adjustment handle 410 of the Y-axis adjustment mechanism is adjusted so that the axis of the elbow 700 is in the same horizontal position as the axis of the cutterhead 310.

In the embodiment, the flatness adjusting tool structure is the cross backup plate, which is installed on the cutterhead 310 in a high-precision matching mode through a shaft hole, and the design end surface is parallel to the cutterhead 310. The cutting host is fed when the flatness is adjusted, so that the cutter head 310 is close to the end face of the elbow 700, and the end face of the elbow 700 is attached to the cross-shaped backup plate, so that the end face of the elbow 700 is parallel to the cutter head 310. The X-axis adjusting handle (i.e., adjusting the position of the elbow 700 in the first horizontal direction F1) and the C-axis rotating disk 610 (adjusting the circumferential position of the elbow 700) are adjusted by manual measurement of an operator, and the end surface axis of the elbow 700 coincides with the axis of the cutterhead 310 by simultaneous action of the cross-shaped backup plates.

In an embodiment, the blade is mounted at a corresponding position on the cutter head 310 according to a machining requirement, the driving motor 320 is started, the cutter head 310 drives the blade to rotate, the machining feed and withdrawal hand wheel 330 of the cutting mechanism 300 is manually rocked, the cutter head 310 moves forward along the second horizontal direction F2 to perform cutting operation, and the feed limiting member 390 (for example, in a column shape) moves along the second horizontal direction F2 along with the cutter head 310 until abutting against a fixed structure on the cutting mechanism 300, so that the cutter head 310 cannot continuously approach the elbow 700 along the second horizontal direction F2, and further maximum feeding is limited. When the groove is finished, the machining feed and retracting hand wheel 330 of the cutting mechanism 300 is manually rocked to retract the tool.

According to the processing equipment provided by the embodiment of the application, special materials such as carbon steel, stainless steel high alloy steel and the like can be cut. The elbow 700 processed by the elbow automatic welding groove processing equipment has the advantages of flat groove surface, easy guarantee of groove angle, high groove processing efficiency and the like.

In an embodiment, the blade of cutting mechanism 300 may be a custom bevel blade, and the bevel angle, blunt edge thickness, and internal boring depth may be custom-made according to the actual situation. In the embodiment, three degrees of freedom on the processing equipment are adjusted, the relative positions of the elbow 700 to be processed and the bevel cutter head 310 are accurately positioned, and three cutters are cooperated by the cutter head, so that the inner boring, the bevel and the blunt edge of the end face of the elbow 700 can be simultaneously processed.

According to the processing equipment provided by the embodiment of the application, the processing operation of the groove of the elbow 700 is performed, and the processing equipment has the advantages of high efficiency, good stability, wide application range, stable groove quality and the like.

According to the machining apparatus provided in the embodiment of the present application, the cutter holder 340 corresponding to three cutters may be provided on the cutter head, so that the three cutters are fixed to the cutter head. In an embodiment, the three cutters may be a first cutter 350, a second cutter 360 and a third cutter 370, respectively, wherein the first cutter is located at an upper side and may be an inner boring cutter; the second cutter is positioned on the right side and can be a flat cutter; the third tool is located at the lower side and can be a bevel tool. The three cutters are simultaneously clamped on the cutter head, so that the simultaneous processing of inner boring, beveling and blunt edges on the end face of the elbow 700 can be simultaneously carried out as mentioned in the description.

In an embodiment, the above Y-axis adjustment mechanism may have a first base 420 and a Y-axis slide plate assembly disposed thereon, the Y-axis slide plate assembly including a first slide plate having a first inclined surface and a second slide plate having a second slide plate disposed above the first slide plate to be engaged with the first inclined surface, the second slide plate being guided by a guide bar fixed to the first base 420 to extend in a vertical direction to be lifted in the vertical direction. The power of lifting of the second slide plate may for example come from the abutment of the first ramp against the second ramp. In an embodiment, the movement of the first sled in the horizontal direction may be driven by the Y-axis adjustment handle 410, and thus the first sled may be moved in the horizontal direction by rotating the Y-axis adjustment handle 410, where the Y-axis adjustment handle 410 may be, for example, threadedly engaged with the first sled, which may then be, for example, slidably engaged with the first base 420. Further, in an embodiment, the bottom of the cutting mechanism 300 may be provided with a mounting hole 430, and the cutting mechanism may be mounted on the upper side of the second slide plate by a bolt (the bolt is shown in fig. 13 and also denoted by reference numeral 430) penetrating the mounting hole 430.

In an embodiment, the above-mentioned X-axis adjustment assembly may be formed as a substantially sled assembly, which may be of a conventional construction having an X-axis adjustment handle 510 that is rotatable to adjust the position of the X-axis sled 530, the X-axis sled 530 being disposed above the second base 520, and further, the X-axis adjustment assembly may include a locking handle 540 disposed on the X-axis sled 530, the rotation of the locking handle 540 locking the position of both the X-axis sled 530 and the second base 520.

In an embodiment, the C-axis adjusting assembly may also be, for example, an existing structure including a C-axis adjusting handle, and the rotation angle of the rotating disk 610 is adjusted by rotating the C-axis adjusting handle 620.

According to a second aspect of embodiments of the present application, there is provided an elbow automatic welding groove processing method, which may be implemented by the above elbow automatic welding groove processing apparatus. The method for automatically welding the bevel of the elbow has been mentioned in the above description, and the beneficial effects thereof are also described in the above description, and the beneficial effects are not repeated here, and the method for automatically welding the bevel of the elbow will be further described here.

In an embodiment, an elbow automatic welding beveling method includes clamping an elbow 700 with a plurality of clamping members, wherein each clamping member has a clamping recess with an inner side having at least two portions for abutting an outer side of the elbow 700, the plurality of clamping members including a first clamping member 110 and a second clamping member 120 with the clamping recesses opening in a direction opposite each other, the first clamping member 110 being configured to be capable of being proximate to the second clamping member 120 to collectively clamp the elbow 700.

In the embodiment, values of the reference position on the cutting mechanism 300 for cutting the elbow 700 to process the automatic groove of the elbow 700 and 4 positions on the outer wall outside the end face of the elbow 700, up, down, left, and right, are measured and respectively noted as a first value, a second value, a third value, and a fourth value. The position of the elbow 700 in the first horizontal direction F1 and the position in the vertical direction are adjusted such that the first and second values are within a predetermined tolerance range and such that the third and fourth values are within a predetermined tolerance range.

Further, the elbow automatic welding groove processing method further includes providing a cross backup 380 (e.g., the cross backup 380 described above) on the cutting mechanism 300. The cross backup plate 380 includes a first strip portion and a second strip portion perpendicular to each other, wherein two ends of the first strip portion exceed an end surface of the elbow 700, and two ends of the second strip portion exceed an end surface of the elbow 700. The position of the elbow 700 is adjusted such that the elbow 700 rotates about an axis extending in the vertical direction and the position in the first horizontal direction F1, and the end surface of the elbow 700 is fitted with the cross fence 380. In addition, according to the method for automatically welding and chamfering the elbow provided by the embodiment of the application, the three cutters can be arranged on the cutter disc of the cutting mechanism 300, so that the inner boring, chamfering and blunt edge machining of the end face of the elbow 700 can be simultaneously performed, and the angle of the chamfer, the thickness of the blunt edge and the like can be customized and adjusted.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application, but rather, the present application is intended to cover any variations of the equivalent structures described herein or shown in the drawings, or the direct/indirect application of the present application to other related technical fields.

Claims

1. An automatic welding groove processing device for processing an automatic welding groove of an elbow, which is characterized by comprising the following components:

2. The elbow automatic groove machining apparatus according to claim 1, wherein the first adjustment mechanism comprises a first adjustment assembly and a second adjustment assembly connected to each other, the first adjustment assembly being connected to the positioning mechanism, the first adjustment assembly being configured to drive rotation of the positioning mechanism about an axis extending in a vertical direction, the axis passing through the positioning mechanism.

3. The elbow automatic welding groove machining apparatus according to claim 1, wherein the positioning mechanism comprises:

4. The elbow automatic welding groove machining apparatus according to claim 3, wherein the moving assembly further comprises:

5. The elbow automatic groove machining apparatus according to claim 1, wherein the clamping recess includes a first locating plane and a second locating plane connected to each other, the first locating plane intersecting the second locating plane, the first locating plane having a first position for abutting an outside of the elbow, the second locating plane having a second position for abutting an outside of the elbow.

6. The automatic elbow welding groove machining apparatus according to claim 1, wherein,

the opening direction of the clamping recess of the first clamping member and the opening direction of the clamping recess of the second clamping member are opposite to each other in the vertical direction.

7. The automatic elbow welding groove machining apparatus according to claim 1, wherein,

the plurality of clamping members includes a plurality of pairs of first and second clamping members disposed at intervals along an extension direction of the elbow.

8. The automatic elbow welding groove machining equipment according to claim 1, further comprising a cross backup plate detachably arranged on the cutter head, wherein the cross backup plate is used for being attached to the end face of the elbow, the cross backup plate comprises a first strip-shaped part and a second strip-shaped part which are perpendicular to each other, two ends of the first strip-shaped part exceed the end face of the elbow, and two ends of the second strip-shaped part exceed the end face of the elbow;

9. An automatic welding groove processing method for an elbow is used for processing an automatic welding groove of the elbow, and is characterized by comprising the following steps:

10. The method for automatically chamfering an elbow according to claim 9, comprising: