CN210475923U - Efficient deep-melting welding equipment for boundary beam - Google Patents

Abstract

The utility model discloses a boundary beam high-efficiency deep melting welding device, which comprises a three-axis motion platform, a welding gun and a back gas protection mechanism, wherein the back gas protection mechanism comprises a cross arm and a back gas protection assembly, the two ends of the cross arm are supported by a support adjusting mechanism and a vertical driving mechanism B, the support adjusting mechanism comprises a bottom plate, a limiting shaft and a supporting rod assembly, and the limiting plate is provided with a first through hole A; the supporting rod assembly comprises a limiting cylinder, a supporting cylinder, a contact plate and a supporting rod, and a first through hole B is formed in the side wall of the limiting cylinder; the bottom end of the supporting cylinder is inserted into the center hole of the limiting cylinder, the bottom end of the supporting rod is inserted into the center hole of the supporting cylinder and is in threaded connection with the center hole, the other end of the supporting rod is connected with the contact plate, and the contact plate is in contact with the lower surface of the cross arm. The utility model discloses a both ends at the cross arm set up height-adjustable's strutting arrangement to make back of the body gas protection mechanism be applicable to multiple radius size's pipeline, improve back of the body gas protection device's suitability.

Description

Efficient deep-melting welding equipment for boundary beam

Technical Field

The utility model relates to the field of welding technique, concretely relates to high-efficient deep melting welding equipment of boundary beam.

Background

In addition to the need for proper protection of the high temperature weld pool on the front side of the weld during metal welding, the back side of the weld must also take the necessary measures to block the oxidizing effect of oxygen in the air on the weld. Inert gases are generally considered to be a better protective medium. Devices that can be used to implement the backside gas shield of the weld are known in the art as "backside gas shields".

In pipe welding, welding in the circumferential direction, the axial direction, and the like of the pipe is involved. Therefore, the existing welding equipment special for the pipeline part comprises a three-axis motion platform, a welding gun fixed at the driving end of the three-axis motion platform and a roller frame positioned on one side of the three-axis motion platform. The three-axis motion platform drives the welding gun to move along the X/Y/Z axis, and the roller frame is used for supporting and rotating the pipeline to be welded.

In the existing metal welding process, if a workpiece is tubular, two ends of a pipeline are usually sealed, inert gas is filled for protection, so that the oxygen content in the pipeline is reduced, and the oxidation degree is reduced. If the workpiece is flat, a strip-shaped air groove with the same length as the workpiece needs to be placed below the workpiece, and inert gas is filled in the air groove before welding to achieve the purpose of back gas protection. However, in both of these methods, the consumption amount of the inert gas is large, resulting in high production costs; the inflation time is long, so that the production efficiency is low; and because the space in the pipeline or the gas tank is large, even if a large amount of inert gas is filled, the air can not be effectively emptied, the protection effect is very poor, the welding quality is seriously influenced, the welding seam needs to be polished or passivated by acid cleaning after welding, and a large amount of manpower and material resources are wasted.

The prior art CN202639610U discloses a gas protection device for pipeline welding, which well meets the requirement of how to perform gas protection on the back of the weld seam in pipeline welding summary. However, in practical use, due to the different outer diameters of the different pipes, the overall height of the back gas protection device also needs to be adjusted so that the back gas protection device is always positioned in the inner hole of the pipe. The utility model discloses be to this technical demand promptly, design pipeline welding back of the body gas protection device to make its height-adjustable, thereby be convenient for process the pipeline of multiple external diameter, improve pipeline welding back of the body gas protection device's applicable occasion.

Disclosure of Invention

The utility model aims to provide a: the utility model provides a high-efficient deep melting welding equipment of boundary beam has solved because the external diameter of different pipelines is different, and the holistic height of back of the body gas protection device also needs the technical demand of adjustment. The utility model discloses a high-efficient deep melting welding equipment of boundary beam sets up height-adjustable's strutting arrangement through the both ends at the cross arm that is used for supporting back of the body gas protection architecture to make back of the body gas protection mechanism be applicable to the pipeline of multiple radius size, improve back of the body gas protection device's suitability, thereby improve the convenience that welding equipment used.

The utility model adopts the technical scheme as follows:

a high-efficiency deep-melting welding device for boundary beams comprises a three-axis motion platform, a welding gun fixed at the drive end of the three-axis motion platform, a roller frame positioned on one side of the three-axis motion platform, and a back gas protection mechanism fixed above the roller frame, wherein the back gas protection mechanism comprises a cross arm, a back gas protection assembly arranged on the cross arm in a sliding manner, and a reciprocating driving mechanism A for driving the back gas protection assembly to move back and forth along the axis of the cross arm; the support adjusting mechanism comprises a bottom plate, two limiting plates, a limiting shaft and a supporting rod assembly, wherein the bottom plate is fixed on the ground, the two limiting plates are parallel to each other and are vertically fixed on the bottom plate, and a plurality of first through holes A are formed in the limiting plates in the direction vertical to the ground;

the supporting rod assembly is positioned between the limiting plates and comprises a limiting cylinder, a supporting cylinder, a contact plate and a supporting rod, the cross section of the limiting cylinder is rectangular, a pair of opposite side walls of the limiting cylinder are respectively contacted with one limiting plate, a first through hole B is formed in the bottom of the side wall of the limiting cylinder, and one end of the limiting shaft penetrates through the first through hole A and the first through hole B in one limiting plate in sequence and then is inserted into the first through hole A in the other limiting plate;

the bottom end of the supporting cylinder is inserted into a center hole of the limiting cylinder, the bottom end of the supporting rod is inserted into the center hole of the supporting cylinder and is in threaded connection with the center hole, the other end of the supporting rod is connected with a contact plate, the contact plate is parallel to the horizontal plane, and the top surface of the contact plate is in contact with the lower surface of the cross arm.

The utility model discloses well actuating mechanism who designs all preferably adopts prior art, for example telescoping cylinder, telescopic link, sprocket mechanism, rack and pinion mechanism, conveyer belt etc..

When the pipeline needs to be welded, the lower limiting shaft is taken out firstly, and the supporting rod assembly is taken down from between the limiting plates after the limiting function of the limiting shaft is lost, so that one end of the cross arm, which is far away from the vertical driving mechanism B, is in a free suspension state; so that the pipeline to be welded is sleeved on the cross arm from one end of the cross arm, which is far away from the vertical driving mechanism B, and the outer wall of the pipeline is tangent to the roller of the roller frame; then starting a vertical driving mechanism to enable the openings of the back gas protection boxes in the cross arm ascending and back gas protection assemblies to be opposite to the part to be welded on the pipeline and the top of the back gas protection box to be contacted with the inner wall of the pipeline; then, the supporting rod assembly is placed back between the limiting plates, the supporting rod is moved upwards to enable the top of the supporting rod to be close to the cross arm, and then one end of the position shaft sequentially penetrates through the first through hole A and the first through hole B in one limiting plate and then is inserted into the first through hole A in the other limiting plate; and then the supporting rod is rotated relative to the supporting cylinder so as to enable the supporting rod to ascend until the top of the supporting rod is contacted with the lower surface of the cross arm, so that one side of the cross arm, which is far away from the vertical driving mechanism B, is supported by the supporting rod assembly.

The supporting rod component realizes vertical position fixing through surface-to-surface contact between the supporting rod component and the cross arm and limiting of the limiting plate.

When the pipeline external diameter is great, be not convenient for establish the cross arm from the cover in the interval between limiting plate and the cross arm on, start vertical actuating mechanism B to make the cross arm go upward under vertical actuating mechanism B's drive, thereby increase the interval between cross arm and the limiting plate, thereby be convenient for establish the pipeline cover on the cross arm.

When the radius of the welded pipeline is smaller, the distance between the axis of the welded pipeline and the ground is smaller, the back gas protection assembly needs to be arranged at a position close to the ground, and the position of the cross arm can be adjusted through the vertical driving mechanism to enable the cross arm to move downwards, so that the cross arm is positioned in an inner hole of the pipeline, the pipeline can be in contact with a roller of a roller frame, and the back gas protection box is in contact with the inner wall of the pipeline; when the radius of the welded pipeline is larger, the distance between the axis of the welded pipeline and the ground is larger, the back gas protection assembly needs to be arranged at a position far away from the ground, and the position of the cross arm can be adjusted through the vertical driving mechanism to enable the cross arm to move upwards, so that the cross arm is positioned in an inner hole of the pipeline, the pipeline can be in contact with the roller of the roller frame, and the back gas protection box is in contact with the inner wall of the pipeline.

To sum up, the utility model arranges the supporting devices with adjustable height at the two ends of the cross arm, so that the back gas protection mechanism is suitable for pipelines with various radius sizes, thereby improving the applicability of the back gas protection device and further improving the use convenience of the welding equipment; and the supporting and adjusting mechanism for supporting arranged at one end of the cross arm is simple in structure and convenient to operate, and is supported in a contact manner with the cross arm, so that the pipeline to be welded is conveniently installed after the supporting and adjusting mechanism is detached, the working efficiency is improved, and the time cost is reduced.

Simultaneously, in support bar mechanism, realize this vertical position of mechanism's adjustment on a large scale through spacing axle, through the silk joint between a support section of thick bamboo and the bracing piece realization small-scale adjustment, enable then that it can quick adjustment to the position of supporting the cross arm, perhaps break away from in the position of supporting the cross arm fast, further improved the utility model discloses an availability factor and convenience.

Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:

1. the utility model relates to a boundary beam high-efficiency deep melting welding device, which is characterized in that supporting devices with adjustable height are arranged at the two ends of a cross arm, so that a back gas protection mechanism is suitable for pipelines with various radius sizes, the applicability of the back gas protection device is improved, and the use convenience of the welding device is further improved; the supporting and adjusting mechanism for supporting arranged at one end of the cross arm is simple in structure and convenient to operate, and is supported in a contact manner with the cross arm, so that a pipeline to be welded is conveniently installed after the supporting and adjusting mechanism is disassembled, the working efficiency is improved, and the time cost is reduced;

2. the utility model relates to a boundary beam high-efficient deep melting welding equipment, in the support bar mechanism, realize the adjustment of this mechanism vertical position on a large scale through spacing axle, realize the adjustment on a small scale through the silk joint between support section of thick bamboo and the bracing piece, then enable it to adjust to the position of supporting the cross arm fast, or break away from the position of supporting the cross arm fast, further improved the utility model discloses an availability factor and convenience;

3. the utility model relates to an edge beam high-efficiency deep melting welding device, a limiting shaft is used for adjusting the larger height of the whole supporting rod component, and a small adjusting shaft is used for adjusting the smaller height of the whole supporting rod component; through the combination of spacing axle and fine setting axle, further improved the utility model discloses a convenience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, for those skilled in the art, other related drawings can be obtained according to the drawings without creative efforts, and the proportional relationship of each component in the drawings in the present specification does not represent the proportional relationship in the actual material selection design, and is only a schematic diagram of the structure or the position, in which:

FIG. 1 is a schematic structural view of a back gas protection mechanism;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is an enlarged view at B in FIG. 1;

fig. 4 is a schematic structural view of the vertical driving mechanism B;

FIG. 5 is a schematic structural view of a backside protection assembly;

FIG. 6 is a bottom view of FIG. 5;

FIG. 7 is a cross-sectional view taken along A-A in FIG. 6;

FIG. 8 is a schematic bottom view of the back gas shield assembly;

FIG. 9 is a cross-sectional structural schematic of the cross-arm;

FIG. 10 is a schematic view of the configuration of the backside protection assembly in cooperation with the cross arm;

fig. 11 is a schematic structural view of the present invention;

fig. 12 is a schematic structural view of the roller frame unit.

Reference numerals in the drawings indicate:

1-cross arm, 2-bottom plate, 3-limit plate, 4-limit shaft, 5-first through hole A, 6-limit barrel, 7-support barrel, 8-contact plate, 9-support rod, 10-drive sprocket, 11-driven sprocket, 12-annular chain, 13-motor A, 14-driven mandrel, 15-tightening chute, 16-top tight lug, 17-screw, 18-box, 19-screw B, 20-motor B, 21-drive nut, 22-drive plate, 23-slide rail B, 24-slide block B, 25-base, 26-back air protection box, 27-inflation tube, 28-positioning rod, 29-spring, 30-air distribution plate, 31-air distribution hole, 32-small adjustment shaft, 33-a second through hole A, 34-a corrugated pipe, 35-a connecting block, 36-a connecting through hole, 37-a first connecting block, 38-a second connecting block, 39-a first sliding groove, 40-a second sliding groove, 41-an L plate, 42-a connecting sliding block, 43-a fixed block, 44-an edge beam, 45-a welding gun, 46-a supporting column, 47-a wheel frame rail, 48-a wheel frame seat, 49-a roller, 50-a guide groove, 51-a screw rod, 52-a hand wheel, 53-a fixed plate and 54-a bearing seat.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The present invention will be described in detail with reference to fig. 1 to 11.

Example 1

As shown in fig. 1-11, the utility model relates to a boundary beam high-efficiency deep melting welding device, including three-axis motion platform, welding gun 45 fixed at the drive end of three-axis motion platform, roller frame located at one side of three-axis motion platform, back gas protection mechanism fixed above the roller frame, back gas protection mechanism includes cross arm 1, back gas protection component sliding arranged on cross arm 1 and reciprocating drive mechanism a driving back gas protection component to move back and forth along the axis of cross arm 1, both ends of cross arm 1 are fixed on the ground through support adjustment mechanism and vertical drive mechanism B respectively, the roller frame is located between support adjustment mechanism and vertical drive mechanism B, the vertical drive mechanism is connected with one end of cross arm 1, it drives cross arm 1 to keep away from or be close to the ground; the supporting and adjusting mechanism comprises a bottom plate 2, two limiting plates 3, a limiting shaft 4 and a supporting rod assembly, wherein the bottom plate 2 is fixed on the ground, the two limiting plates 3 are parallel to each other and are vertically fixed on the bottom plate 2, and a plurality of first through holes A5 are formed in the limiting plates 3 in the direction vertical to the ground;

the supporting rod assembly is positioned between the limiting plates 3 and comprises a limiting cylinder 6, a supporting cylinder 7, a contact plate 8 and a supporting rod 9, the cross section of the limiting cylinder 6 is rectangular, a pair of opposite side walls of the limiting cylinder are respectively contacted with one limiting plate 3, a first through hole B is formed in the bottom of the side wall of the limiting cylinder 6, and one end of the limiting shaft 4 sequentially penetrates through the first through hole A5 and the first through hole B of one limiting plate 3 and then is inserted into the first through hole A5 of the other limiting plate 3;

the bottom end of the supporting cylinder 7 is inserted into a central hole of the limiting cylinder 6, the bottom end of the supporting rod 9 is inserted into the central hole of the supporting cylinder 7 and is in threaded connection with the central hole, the other end of the supporting rod is connected with a contact plate 8, the contact plate 8 is parallel to the horizontal plane, and the top surface of the contact plate is in contact with the lower surface of the cross arm 1.

When in use, a roller frame for driving the pipeline to be welded to rotate is arranged below the cross arm 1, as shown in fig. 11.

When the pipeline needs to be welded, the lower limiting shaft 4 is firstly taken out, and the supporting rod assembly is taken down from between the limiting plates 3 after the limiting action of the limiting shaft 4 is lost, so that one end of the cross arm 1, which is far away from the vertical driving mechanism B, is in a free suspension state; so that a pipeline to be welded is sleeved on the cross arm 1 from one end of the cross arm 1 far away from the vertical driving mechanism B, and the outer wall of the pipeline is tangent to the roller of the roller frame; then starting a vertical driving mechanism to enable the opening of a back gas protection box in the cross arm 1 ascending and back gas protection assembly to be opposite to a part to be welded on the pipeline, and the top of the back gas protection box to be contacted with the inner wall of the pipeline; then, the supporting rod assembly is placed back between the limiting plates 3, the supporting rod is moved upwards to enable the top of the supporting rod to be close to the cross arm 1, and then one end of the position shaft 4 sequentially penetrates through the first through hole A5 and the first through hole B of one limiting plate 3 and then is inserted into the first through hole A5 of the other limiting plate 3; and then the support rod 9 is rotated relative to the support barrel 7, so that the support rod 9 goes upwards until the top of the support rod 9 is contacted with the lower surface of the cross arm 1, and one side of the cross arm 1, which is far away from the vertical driving mechanism B, is supported by the support rod assembly.

The supporting rod component realizes vertical position fixing through surface-to-surface contact between the supporting rod component and the cross arm 1 and limiting of the limiting plate 3.

When the pipeline external diameter is great, be not convenient for establish the cross arm from the cover in the interval between limiting plate 3 and the cross arm 1 on, start vertical actuating mechanism B to make cross arm 1 go upward under vertical actuating mechanism B's drive, thereby increase the interval between cross arm and the limiting plate 3, thereby be convenient for establish the pipeline cover on cross arm 1.

When the radius of the welded pipeline is smaller, the distance between the axis of the welded pipeline and the ground is smaller, the back gas protection assembly needs to be arranged at a position close to the ground, and at the moment, the position of the cross arm 1 can be adjusted through the vertical driving mechanism to enable the cross arm 1 to move downwards, so that the cross arm 1 is positioned in an inner hole of the pipeline, the pipeline can be in contact with a roller of a roller frame, and the back gas protection box is in contact with the inner wall of the pipeline; when the radius of the welded pipeline is larger, the distance between the axis of the welded pipeline and the ground is larger, the back gas protection assembly needs to be arranged at a position far away from the ground, and at the moment, the position of the cross arm 1 can be adjusted through the vertical driving mechanism, so that the cross arm 1 moves upwards, the cross arm 1 is positioned in an inner hole of the pipeline, the pipeline can be in contact with a roller of a roller frame, and the back gas protection box is in contact with the inner wall of the pipeline.

In summary, the utility model arranges the supporting devices with adjustable height at the two ends of the cross arm, so that the back gas protection mechanism is suitable for pipelines with various radius sizes, the applicability of the back gas protection device is improved, and the convenience of the welding equipment is further improved; and the supporting and adjusting mechanism for supporting arranged at one end of the cross arm is simple in structure and convenient to operate, and is supported in a contact manner with the cross arm, so that the pipeline to be welded is conveniently installed after the supporting and adjusting mechanism is detached, the working efficiency is improved, and the time cost is reduced.

Simultaneously, in support bar mechanism, realize this vertical position of mechanism's adjustment on a large scale through spacing axle, through the silk joint between a support section of thick bamboo and the bracing piece realization small-scale adjustment, enable then that it can quick adjustment to the position of supporting the cross arm, perhaps break away from in the position of supporting the cross arm fast, further improved the utility model discloses an availability factor and convenience.

Example 2

The present embodiment is further described with reference to the structure of the support rod assembly.

As shown in fig. 1 and 2, the utility model discloses in still including the minor tune axle 32, be provided with a plurality of second through-holes A33 on the lateral wall of limiting plate 3, second through-hole A33 and first through-hole A5 are crisscross to be distributed in proper order, set up second through-hole B in the bottom of supporting a 7 lateral walls, and the interval between second through-hole B and the first through-hole B is unanimous with the interval between first through-hole A5 and the adjacent second through-hole A33, insert in the second through-hole A33 on another limiting plate 3 after passing second through-hole A33, the second through-hole B on a limiting plate 3 in proper order, and the bottom of supporting a 7 contacts with the lateral wall of minor tune axle 32.

The limiting shaft is used for adjusting the whole larger height of the support rod assembly, and the small adjusting shaft is used for adjusting the whole smaller height of the support rod assembly. Through the combination of spacing axle and fine setting axle, further improved the utility model discloses a convenience.

Example 3

The present embodiment is an explanation of the reciprocating drive mechanism a.

As shown in fig. 1-4, in the present invention, the cross arm 1 is a square tube, the reciprocating driving mechanism a is a sprocket mechanism, which includes a driving sprocket 10, a driven sprocket 11, an annular chain 12 sleeved on the driving sprocket 10 and the driven sprocket 11, and a motor a13 for driving the driving sprocket 10 to rotate, the driving sprocket 10 and the driven sprocket 11 are respectively fixed at two ends of the cross arm 1 in a rotating manner, and a portion of the annular chain 12 located between the driving sprocket 10 and the driven sprocket 11 and located at an upper side is located above the cross arm 1 and connected to the back air protection assembly; the portion of the endless chain 12 located between the drive sprocket 10 and the driven sprocket 11 and located on the lower side is located in the center hole of the cross arm 1.

Preferably, the motor a13 drives the drive sprocket 10 to rotate via an electromagnetic clutch.

Example 4

The embodiment is to explain the tightening structure of the chain.

As shown in fig. 1 and 2, in the present invention, the driven sprocket 11 is fixed on the cross arm 1 through the driven spindle 14, the driven sprocket 11 is rotatably connected with the driven spindle 14 through a bearing, tightening chutes 15 are respectively arranged on the side walls of both sides of the cross arm 1, the extending direction of the tightening chute 15 is parallel to the axis of the cross arm 1, one end of the tightening chute 15, which is far away from the vertical driving mechanism B, is an open end, and both ends of the driven spindle 14 respectively pass through one tightening chute 15;

the cross arm 1 is provided with a jacking lug 16 and a screw 17 on one side of the closed end of the sliding groove 15, one side of the jacking lug 16 is connected with the cross arm 1, threaded holes with axes parallel to the axis of the cross arm 1 are arranged on the jacking lug 16, the screw 17 is in threaded connection with the threaded holes, and the tail end of the rod part of the screw is in contact with the side wall of the driven mandrel 14 facing the vertical driving mechanism B.

Screw rod B17 is tight with driven dabber 14 top to make driven sprocket not only undertake the chain switching-over, still play the function of take-up pulley, for current sprocket mechanism, lacked a take-up pulley, simplified overall structure, and promoted the utility model discloses the stability of performance.

Preferably, planes are milled on the upper and lower sides of the side walls at both ends of the driven spindle 14, and the planes on the upper and lower sides are respectively in contact with the upper and lower side groove walls of the tightening sliding groove.

Example 5

The present embodiment is an explanation of the structure of the vertical driving mechanism B.

As shown in fig. 4, in the utility model, vertical driving mechanism B includes box 18, motor B20, drive plate 22, drive nut 21 and the screw rod B19 that is located box 18 one side, the axis perpendicular to ground of screw rod B19, its both ends all with the upper and lower both sides of box 18 rotate to be connected, drive nut 21 and screw rod B19 threaded connection, its outer wall is connected with drive plate 22, drive plate 22 fixes in one side of cross arm 1 and slides and set up on the tank wall of box 18, and its slip direction coincides with the axis of screw rod B19.

The screw B19 drives the driving nut 21, the driving plate 22 and the cross arm 1 to move up and down under the forward and reverse rotation of the motor B20.

Further, the driving plate 22 is slidably disposed on a wall of the box 18 through a sliding assembly, the sliding assembly includes a sliding block B24 and a sliding rail B23, the sliding rail B23 is fixed on the wall, an axis of the sliding rail B23 coincides with an axis of the screw B19, one side of the sliding block B24 is connected with the driving plate 22, and the other side of the sliding block B24 is provided with a sliding groove matched with the sliding rail B23.

A bellows 34 for dust prevention is preferably provided on the screw B19 above the drive nut 21. Since the screw B19 is threadedly coupled to the drive nut 21, the screw B19 is coated with lubricating oil, and when it is directly exposed to the working environment, a large amount of dust adheres thereto, and the smoothness of movement of the drive nut 21 is reduced, so that the bellows 34 is fitted over the screw B19 to cover the upper end of the screw B, and a movement path can be obtained by compressing the bellows when the drive nut 21 moves upward.

Example 6

The embodiment is to explain the implementation of the back gas protection component.

As shown in fig. 1, fig. 3 and fig. 5-fig. 8, in the utility model, the back air protection component includes base 25, back air protection box 26 and gas tube 27, base 25 slides and fixes on cross arm 1, reciprocating drive mechanism a's driver part is connected with base 25, back air protection box 26 open-top, its bottom is fixed on base 25 through a plurality of elastic component, elastic component's flexible direction perpendicular to ground, the one end of gas tube 27 is connected with inert gas source, lies in back air protection box 26 behind its other end passing back air protection box 26's the box wall.

Furthermore, the tops of a pair of opposite side walls perpendicular to the axis of the cross arm 1 on the back air protection box 26 are convex outwards to form a circular arc shape, the elastic component comprises a positioning rod 28 and a spring 29, the bottom of the back air protection box 26 is provided with a plurality of blind holes, the base 25 is provided with a plurality of through holes, the top end of the positioning rod 28 is inserted into one blind hole, the bottom end of the positioning rod passes through the through hole, the spring 29 is sleeved on the positioning rod 28, and the upper end and the lower end of the spring are respectively contacted with the bottom of the back air protection box 26 and the top of the base 25.

The radius of the circular arc is consistent with the inner diameter of the pipeline and tangent with the inner wall of the pipeline, so that the back of the welding part is arranged by the back gas protection box 26; at the same time, the spring 29 is in a compressed state, so that the back gas protection box generates a certain pressure on the inner wall to prevent the inert gas from leaking too fast.

Simultaneously, the pipeline internal diameter is not of uniform size, consequently can directly take off back of the body gas protection box 16 from locating lever 28, then install the back of the body gas protection box 16 that has the arc position unanimous with the pipeline internal diameter, further improved the utility model discloses an suitability and convenient to use nature.

Further, an air distribution plate 30 is arranged in the back air protection box 26, the air distribution plate 30 is parallel to the ground of the back air protection box 26, the periphery of the air distribution plate is connected with the inner wall of the back air protection box 26, a plurality of air distribution holes 31 are formed in the air distribution plate 30, the air distribution holes 31 are distributed in a matrix, and the inflation tube 27 is located below the air distribution plate 30.

The gas distribution holes 31 and the gas distribution plate 30 are provided to ensure uniform distribution of the inert gas, ensure good back gas protection effect, and avoid adverse effects of direct blowing of the protective gas on the arc.

Example 7

The embodiment is used for explaining the sliding connection between the back gas protection assembly and the cross arm.

As shown in fig. 5-10, in the present invention, the base 25 is U-shaped, and includes a middle plate and two end plates respectively located at two ends of the lower surface of the middle plate, the through hole on the base 25 is located on the middle plate, and the back gas protection box is located above the middle plate; connecting blocks 35 are arranged on the lower surface of the middle plate and between the end plates, the upper surface of each connecting block 35 is connected with the middle plate, a connecting through hole 36 is formed in each connecting block, and the chain penetrates through the connecting through holes 36 and is connected with the connecting through holes 36; all be provided with sliding connection spare A on the opposite face of end plate, sliding connection spare A includes first connecting block 37 and second connecting block 38, the both sides of first connecting block 37 are connected with end plate and second connecting block 38 respectively, are provided with first spout 39 on first connecting block 37 upper surface, are provided with second spout 40 in second connecting block 38 one side far away from first connecting block 37, the extension axis of first spout 39 and second spout 40 all is parallel with the axis of cross arm 1.

Two side walls of the cross arm 1 are respectively provided with a sliding connecting piece B, and the sliding connecting pieces B are respectively matched with one sliding connecting piece A; the sliding connecting piece B comprises an L plate 41, a connecting sliding block 42 and a fixing block 43, an extension plate extends upwards from one end, far away from a vertical plate, of a horizontal plate of the L plate, the extension plate is connected with the side wall of the cross arm 1, the vertical plate of the extension plate faces downwards and is inserted into the first sliding groove 40, the fixing block 34 is located below the horizontal plate and is connected with the side wall of the cross arm 1, one end of the connecting sliding block 42 is connected with the fixing block 34, and the other end of the connecting sliding block is inserted into the second sliding groove 40.

Example 8

The embodiment is to explain the three-axis motion platform.

The three-axis motion platform comprises an edge beam 44, an X-axis drive assembly C, Z, an axis drive assembly D and a Y-axis drive assembly E, wherein the axis of the edge beam 44 is parallel to the axis of the cross arm 1 and is fixed above one side of the cross arm 1 through a plurality of support columns 46, the X-axis drive assembly C is fixed on the edge beam 44, the drive end of the X-axis drive assembly C is connected with the Z-axis drive assembly D and reciprocates along the axis of the edge beam 44, the drive end of the Z-axis drive assembly D is connected with the Y-axis drive assembly E and drives the Y-axis drive assembly E to reciprocate along the direction vertical to the ground, and the drive end of the Y-axis drive assembly E is connected with a welding gun 45.

X axle drive assembly C includes rack C and with rack C meshing gear C, drive gear C pivoted motor C, rack C fixes on boundary beam 44, the motor is fixed on Z axle drive assembly D's shell, and Z axle drive assembly D passes through slide rail spout cooperation mechanism and slides and fix on the boundary beam, and motor C's output shaft rotates, drives gear C and rotates, makes gear C remove along rack C then.

Z axle drive assembly D includes screw rod D, nut D, motor D and box D, nut D is located box D, and its axis perpendicular to ground, its both ends are connected with box D inner wall rotation, and its one end is connected with motor D, nut D threaded connection is on screw rod D, and its one side is connected with slide D, slide D slides and sets up on the box, and its slip direction is parallel with screw rod D's axis.

The Y-axis driving assembly E comprises a rack E, a gear E, a motor E, a box body E and a sliding plate E, one end of the box body E is connected with the sliding plate, the rack E is fixed inside the box body E, the gear E is meshed with the rack E, the motor E drives the gear E to rotate, the sliding plate E is arranged on the box body E in a sliding mode, the sliding direction of the sliding plate E is parallel to the horizontal plane and perpendicular to the axis of the boundary beam, and the motor is fixed on the sliding plate E.

Example 9

The present embodiment is described with respect to the structure of the roller frame.

The roller frame comprises a frame rail 47 and a plurality of roller frame units arranged on the frame rail 47 in a sliding manner, the roller frame units comprise a frame seat 48 and two rollers 49 which are rotationally fixed on the frame seat 48, and a frame sliding block matched with the frame rail 47 is arranged at the bottom of the frame seat 48.

A guide groove 50 is arranged on the wheel frame seat 48, two ends of the guide groove 50 are closed ends, and the extending direction of the guide groove 50 is parallel to the horizontal plane and is vertical to the axis of the cross arm 1;

the roller 49 is fixed on the wheel frame seat 48 through a shaft support assembly, the shaft support assembly comprises a fixed plate 53 and two bearing seats 54 fixed on two sides of the upper surface of the fixed plate 53, bearings are clamped in bearing mounting holes of the bearing seats 54, the roller 49 is positioned between the bearing seats, and two ends of a roller shaft of the roller are respectively in interference fit with a central hole of one bearing;

a fixed block is arranged at the bottom of the fixed plate 53, the top of the fixed block is connected with the fixed plate 53, and the bottom of the fixed block is inserted into the guide groove 50;

a screw rod 51 is arranged in the guide groove 50, two ends of the screw rod 51 respectively penetrate through a fixed block and then are rotationally connected with the closed end of the guide groove 50, the screw rod is in threaded connection with the fixed block, one end of the screw rod 51 penetrates through one closed end of the guide groove 50 and then is connected with a hand wheel 52, and the thread turning directions of two ends of the screw rod 51 are opposite.

Different welded pipes have different outer diameters and therefore different roller spacings are required. When the required distance between the rollers is smaller, the hand wheel is rotated to rotate the screw rod, so that the rollers are close to each other; when the required distance between the rollers is larger, the hand wheel is rotated to enable the screw rod to rotate reversely, so that the rollers are far away from each other.

Example 10

In the welding operation, the movement of the welding gun in the axial direction of the cross arm 1 is synchronized with the movement of the back gas protection box in the axial direction of the cross arm 1, and each motor is preferably a servo speed reduction motor. The utility model discloses in, among the automatically controlled of adoption, opening of each motor stops by controller control, and the controller adopts PLC to preferably touch-sensitive screen control is equipped with the molten bath simultaneously and observes the camera, in order to realize welding process's control. Meanwhile, remote control equipment can be equipped to realize remote control.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions conceived by the inventive work within the technical scope disclosed by the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (9)

1. The utility model provides a high-efficient deep melting welding equipment of boundary beam, includes three-axis motion platform, fixes welder (45) at three-axis motion platform drive end, is located the gyro wheel frame of three-axis motion platform one side, fixes the back of the body gas protection mechanism in the gyro wheel frame top, back of the body gas protection mechanism includes cross arm (1), slides back of the body gas protection subassembly and the reciprocal actuating mechanism A of drive back of the body gas protection subassembly along cross arm (1) axis round trip movement that sets up on cross arm (1), its characterized in that: the two ends of the cross arm (1) are respectively fixed on the ground through a support adjusting mechanism and a vertical driving mechanism B, the roller frame is positioned between the support adjusting mechanism and the vertical driving mechanism B, the vertical driving mechanism is connected with one end of the cross arm (1), and the vertical driving mechanism drives the cross arm (1) to be far away from or close to the ground; the supporting and adjusting mechanism comprises a bottom plate (2), two limiting plates (3), a limiting shaft (4) and a supporting rod assembly, wherein the bottom plate (2) is fixed on the ground, the two limiting plates (3) are parallel to each other and are vertically fixed on the bottom plate (2), and a plurality of first through holes A (5) are formed in the limiting plates (3) in the direction perpendicular to the ground;

the supporting rod assembly is positioned between the limiting plates (3), the supporting rod assembly comprises a limiting cylinder (6), a supporting cylinder (7), a contact plate (8) and a supporting rod (9), the cross section of the limiting cylinder (6) is rectangular, a pair of opposite side walls of the limiting cylinder are respectively contacted with one limiting plate (3), a first through hole B is formed in the bottom of the side wall of the limiting cylinder (6), and one end of the limiting shaft (4) sequentially penetrates through a first through hole A (5) in one limiting plate (3) and the first through hole B and then is inserted into a first through hole A (5) in the other limiting plate (3);

the bottom end of the supporting cylinder (7) is inserted into a center hole of the limiting cylinder (6), the bottom end of the supporting rod (9) is inserted into the center hole of the supporting cylinder (7) and is in threaded connection with the center hole, the other end of the supporting rod is connected with the contact plate (8), the contact plate (8) is parallel to the horizontal plane, and the top surface of the contact plate is in contact with the lower surface of the cross arm (1).

2. The efficient deep melting welding equipment for the edge beam according to claim 1, characterized in that: still include minor tune axle (32), be provided with a plurality of second through-holes A (33) on the lateral wall of limiting plate (3), second through-hole A (33) and first through-hole A (5) crisscross distribution in proper order set up second through-hole B in the bottom of supporting a section of thick bamboo (7) lateral wall, and the interval between second through-hole B and the first through-hole B is unanimous with the interval between first through-hole A (5) and the adjacent second through-hole A (33) of it, insert in second through-hole A (33) on another limiting plate (3) behind second through-hole A (33), the second through-hole B on the limiting plate (3) in proper order, and the bottom of supporting a section of thick bamboo (7) contacts with the lateral wall of minor tune axle (32).

3. The efficient deep melting welding equipment for the edge beam according to claim 1, characterized in that: the cross arm (1) is a square tube, the reciprocating driving mechanism A is a chain wheel mechanism and comprises a driving chain wheel (10), a driven chain wheel (11), an annular chain (12) sleeved on the driving chain wheel (10) and the driven chain wheel (11) and a motor A (13) for driving the driving chain wheel (10) to rotate, the driving chain wheel (10) and the driven chain wheel (11) are respectively and rotatably fixed at two ends of the cross arm (1), and a part, positioned between the driving chain wheel (10) and the driven chain wheel (11) and positioned at the upper side, of the annular chain (12) is positioned above the cross arm (1) and connected with a back gas protection assembly; the part of the annular chain (12) which is positioned between the driving chain wheel (10) and the driven chain wheel (11) and is positioned at the lower side is positioned in the central hole of the cross arm (1).

4. The efficient deep melting welding equipment for the edge beam according to claim 3, characterized in that: the driven chain wheel (11) is fixed on the cross arm (1) through a driven mandrel (14), the driven chain wheel (11) is rotatably connected with the driven mandrel (14) through a bearing, tightening sliding grooves (15) are formed in the side walls of the two sides of the cross arm (1), the extending direction of the tightening sliding grooves (15) is parallel to the axis of the cross arm (1), one end of the tightening sliding grooves (15), which is far away from the vertical driving mechanism B, is an open end, and two ends of the driven mandrel (14) respectively penetrate through the tightening sliding grooves (15);

one side of the cross arm (1) which is positioned at the closed end of the sliding groove (15) is provided with a jacking lug (16) and a screw (17), one side of the jacking lug (16) is connected with the cross arm (1), threaded holes with axes parallel to the axis of the cross arm (1) are formed in the jacking lug, the screw (17) is in threaded connection with the threaded holes, and the tail end of the rod part of the screw is in contact with the side wall of the driven mandrel (14) facing the vertical driving mechanism B.

5. The efficient deep melting welding equipment for the edge beam according to claim 1, characterized in that: vertical actuating mechanism B includes box (18), motor B (20), drive plate (22), drive nut (21) and screw rod B (19) that are located box (18) one side, the axis perpendicular to ground of screw rod B (19), its both ends all are connected with the upper and lower both sides of box (18) are rotated, drive nut (21) and screw rod B (19) threaded connection, and its outer wall is connected with drive plate (22), drive plate (22) are fixed in one side of cross arm (1) and are slided and set up on the tank wall of box (18), and the axis coincidence of its slip direction and screw rod B (19).

6. The efficient deep melting welding equipment for the edge beam according to claim 5, characterized in that: the driving plate (22) is arranged on the box wall of the box body (18) in a sliding mode through a sliding component, the sliding component comprises a sliding block B (24) and a sliding rail B (23), the sliding rail B (23) is fixed to the box wall, the axis of the sliding rail B (23) coincides with the axis of the screw rod B (19), one side of the sliding block B (24) is connected with the driving plate (22), and the other side of the sliding block B (24) is provided with a sliding groove matched with the sliding rail B (23).

7. The efficient deep melting welding equipment for the boundary beam according to any one of claims 1 to 6, characterized in that: the three-axis motion platform comprises an edge beam (44), an X-axis driving assembly C, Z, an axis driving assembly D and a Y-axis driving assembly E, wherein the axis of the edge beam (44) is parallel to the axis of a cross arm (1), the edge beam is fixed above one side of the cross arm (1) through a plurality of supporting columns (46), the X-axis driving assembly C is fixed on the edge beam (44), the driving end of the X-axis driving assembly C is connected with the Z-axis driving assembly D and reciprocates along the axis of the edge beam (44), the driving end of the Z-axis driving assembly D is connected with the Y-axis driving assembly E and drives the Y-axis driving assembly E to reciprocate along the direction vertical to the ground, and the driving end of the Y-axis driving assembly E is connected with a welding gun (45).

8. The efficient deep melting welding equipment for the boundary beam according to any one of claims 1 to 6, characterized in that: the roller frame comprises a frame rail (47) and a plurality of roller frame units arranged on the frame rail (47) in a sliding mode, each roller frame unit comprises a frame seat (48) and two rollers (49) which are fixed on the frame seats (48) in a rotating mode, and a frame sliding block matched with the frame rail (47) is arranged at the bottom of each frame seat (48).

9. The efficient deep melting welding equipment for the edge beam according to claim 8, characterized in that: a guide groove (50) is formed in the wheel frame seat (48), two ends of the guide groove (50) are closed ends, and the extending direction of the guide groove is parallel to the horizontal plane and perpendicular to the axis of the cross arm (1);

the roller (49) is fixed on the wheel frame seat (48) through a shaft support assembly, the shaft support assembly comprises a fixing plate (53) and two bearing seats (54) fixed on two sides of the upper surface of the fixing plate (53), bearings are clamped in bearing mounting holes of the bearing seats (54), the roller (49) is positioned between the bearing seats, and two ends of a roller shaft of the roller are in interference fit with a central hole of one bearing respectively;

a fixed block is arranged at the bottom of the fixed plate (53), the top of the fixed block is connected with the fixed plate (53), and the bottom of the fixed block is inserted into the guide groove (50);

the hand wheel is characterized in that a screw rod (51) is arranged in the guide groove (50), two ends of the screw rod (51) respectively penetrate through a fixed block and then are rotatably connected with the closed end of the guide groove (50), the screw rod is in threaded connection with the fixed block, one end of the screw rod (51) penetrates through one closed end of the guide groove (50) and then is connected with the hand wheel (52), and meanwhile, the thread turning directions of the two ends of the screw rod (51) are opposite.

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