CN115070296A - High-efficient welding equipment of accurate steel tubular product of counterpointing - Google Patents

Abstract

The invention relates to the technical field of iron towers, in particular to steel pipe efficient welding equipment with accurate alignment, which comprises a workbench, a linear driving assembly, a positioning assembly, a clamping assembly, a fixing frame and a welding assembly, wherein the positioning assembly comprises a fixing plate, a sliding frame, a guide strip, a sliding strip, a limiting plate and a positioning plate, a fixing groove is formed in the center of one side face of the fixing plate, the sliding frame is arranged in the fixing groove in a sliding mode, the guide strip is fixedly arranged on the workbench, the sliding strip is in sliding fit with the sliding frame, the limiting plate is fixedly matched with the sliding strip, and the positioning plate is fixedly matched with the sliding strip. According to the invention, the linear driving assembly, the positioning assembly, the clamping assembly and the welding assembly are used for determining the movement amount of the steel pipe along the axial direction when a worker fixes the position of the steel pipe, so that the function of ensuring that the welding part is positioned at the welding position without subsequently adjusting the movement of the steel pipe is realized.

Description

High-efficient welding equipment of steel tubular product of counterpointing accuracy

Technical Field

The invention relates to the technical field of iron towers, in particular to high-efficiency welding equipment for steel pipes, which is accurate in alignment.

Background

In current steel pipe welding process, need align the welding position of two steel pipes that need to weld through the machine to place the welding mouth in under the soldered connection, rotatory steel pipe starts the welding, accomplishes the welding, but in prior art, the counterpoint of steel pipe is more complicated, often can't once only accomplish the location, need carry out adjustment many times, has reduced work efficiency.

Chinese patent CN202121475204.2 discloses a high welding quality steel welding equipment, it keeps coaxial setting to fix two steel pipes through the centre gripping subassembly, move the below of soldered connection in step through linear drive device control two steel pipes and carry out welding work, but this scheme is because the displacement volume that can't confirm the steel pipe when the centre gripping subassembly is placed in the use, lead to the position of the steel pipe welding position that is fixed from the soldered connection can't be confirmed, thereby need staff to control two steel pipes to carry out different displacement volumes when being close to each other by precision operation control many times, make the welding position of two steel pipes all be in the soldered connection below.

Disclosure of Invention

Based on this, it is necessary to provide a steel tubular product high efficiency welding equipment that counterpoints accurately to the prior art problem.

In order to solve the problems of the prior art, the invention adopts the technical scheme that:

provides a high-efficiency welding device of steel pipes with accurate alignment, which comprises a workbench, a linear driving assembly, two positioning assemblies, a clamping assembly, a fixed frame and a welding assembly, wherein the linear driving assembly moves in a bidirectional linear way, the two positioning assemblies are respectively connected with two moving ends of the linear driving assembly, each positioning assembly comprises a fixed plate, a sliding frame, a guide strip, a sliding strip, a limiting plate and a positioning plate, the fixed plate is fixedly connected with the moving ends of the linear driving assembly, the center of the fixed plate is fixedly provided with the clamping assembly, the center of one side surface of the fixed plate is provided with a fixed groove, the sliding frame is arranged in the fixed groove in a sliding way, the sliding direction of the sliding frame is parallel to the height direction of the workbench, the sliding frame is arranged below the clamping assembly, the opening direction of the sliding frame is parallel to the moving direction of the linear driving assembly, and the guide strip is fixedly arranged on the workbench, the length direction of guide strip is parallel with linear drive assembly's moving direction, guide strip and fixed slot sliding fit, the one end that the guide strip is close to the workstation center sets up to the inclined plane, sliding strip and sliding frame sliding fit, the sliding direction of sliding strip is parallel with linear drive assembly's moving direction, the length direction of sliding strip is parallel with the length direction of sliding strip, limiting plate and sliding strip fixed fit, the fixed one end that is close to the sliding frame at the sliding strip that sets up of limiting plate, the sliding frame is in between limiting plate and the sliding strip, locating plate and sliding strip fixed fit, the fixed other end that sets up at the sliding strip of locating plate.

Preferably, the positioning assembly further comprises a first limiting bolt, the first limiting bolt is fixedly matched with the sliding frame, the head of the first limiting bolt is arranged inside the sliding frame, a first limiting long groove matched with the first limiting bolt to work is formed in the fixing plate, the length direction of the first limiting long groove is parallel to the sliding direction of the sliding frame, a long sliding groove matched with the first limiting bolt is formed in the sliding strip, and the length direction of the long sliding groove is parallel to the length direction of the sliding strip.

Preferably, the positioning assembly further comprises a first spring, the first spring is arranged between the sliding frame and the fixing plate, the axis of the first spring is parallel to the sliding direction of the sliding frame, and a first fixing cylinder matched with the first spring is arranged on the sliding frame.

Preferably, the guide strip is provided with a fixing hole, the fixing hole is formed in the inclined plane end of the guide strip, the depth direction of the fixing hole is parallel to the length direction of the guide strip, and the fixing hole and the limiting plate work in a matched mode.

Preferably, the positioning assembly further comprises a second spring, the second spring is arranged in the long sliding groove, and the axis of the second spring is parallel to the length direction of the long sliding groove.

Preferably, locating component still includes the sliding block, and the sliding block slides and sets up in rectangular spout, and the slip direction of sliding block is parallel with the length direction of rectangular spout, and the one end of sliding block sets up to the circular-arc of the first spacing bolt of cooperation, and the second spring setting is between sliding block and locating plate, is provided with the fixed cylinder of second of cooperation second spring on the sliding block.

Preferably, the positioning assembly further comprises a positioning strip, the positioning strip is in sliding fit with the positioning plate, the sliding direction of the positioning strip is parallel to the height direction of the workbench, and the positioning strip is arranged at the center of the positioning plate.

Preferably, the positioning assembly further comprises a second limiting bolt, positioning blocks and a third spring, the second limiting bolt is fixedly matched with the positioning strip, the positioning strip is provided with two positioning blocks in a sliding mode, the sliding direction of the positioning blocks is parallel to the width direction of the positioning strip, the two positioning blocks are evenly arranged along the width direction of the positioning strip, a second limiting long groove matched with the second limiting bolt is formed in the positioning block, the third spring is arranged between the two positioning blocks, the axis of the third spring is parallel to the sliding direction of the positioning blocks, and the positioning plate is provided with a positioning groove matched with the positioning blocks to work.

Preferably, a plurality of anti-slip strips are arranged on the positioning strips, and all the anti-slip strips are uniformly arranged along the length direction of the positioning strips.

Preferably, the positioning assembly further comprises a third limiting bolt, the third limiting bolt is fixedly matched with the positioning plate, a third limiting long groove matched with the third limiting bolt is formed in the positioning strip, and the length direction of the third limiting long groove is parallel to the length direction of the positioning strip.

Compared with the prior art, the beneficial effect of this application is:

1. according to the invention, the linear driving assembly, the positioning assembly, the clamping assembly and the welding assembly are used for realizing the function that when a worker fixes the position of the steel pipe, the moving amount of the steel pipe along the axial direction can be determined, so that the welding position is ensured to be positioned at the welding position without subsequent adjustment of the moving amount of the steel pipe, and the defect that when the worker controls two steel pipes to be close to each other, the worker needs to perform multiple precise operations to control the two steel pipes to perform different moving amounts and the welding positions of the two steel pipes are positioned below the welding head because the position of the fixed steel pipe away from the welding head cannot be determined due to the fact that the moving amount of the steel pipe placed on the clamping assembly cannot be determined in the use process is solved.

2. The first limiting bolt and the first limiting long groove are used for limiting the moving direction of the sliding frame, and the defect that the sliding frame can move along with the sliding strip to be separated from the connection with the fixing plate is overcome.

3. The invention realizes the function of ensuring that the sliding frame can move at the correct time through the first spring, and solves the defect that the sliding frame can be blocked and cannot drive the positioning plate to move downwards.

4. The invention realizes the function of providing a moving place for the sliding strip through the fixing hole, and solves the defect that the sliding strip possibly collides with the guide strip when moving.

5. The invention realizes the function of ensuring that the position of the steel pipe is in the correct position when positioning the steel pipe through the second spring, and solves the defect that the position of the positioning plate does not reach the maximum point when the steel pipe is positioned for many times.

6. The sliding block realizes the function of ensuring that the elastic direction provided by the second spring is parallel to the sliding direction of the sliding strip, and the defect that one end of the second spring is possibly deflected when in contact with the first limiting bolt is overcome.

Drawings

FIG. 1 is a perspective view of the present application in which a steel pipe is integrally placed;

FIG. 2 is a front view of the present application in which a steel pipe is integrally placed;

FIG. 3 is a front view of the present application when integrally welding a steel pipe;

fig. 4 is a schematic sectional view of the steel pipe welded integrally according to the present invention.

FIG. 5 is a perspective view of a guide strip of the present application;

FIG. 6 is a perspective view of a positioning assembly of the present application;

FIG. 7 is an exploded isometric view of the positioning assembly of the present application;

FIG. 8 is a perspective view of the slide frame of the present application;

FIG. 9 is a schematic perspective view of a slide bar of the present application;

fig. 10 is a perspective view of a positioning plate of the present application.

The reference numbers in the figures are:

1-a workbench;

2-a linear drive assembly;

3-a positioning assembly; 3 a-a fixed plate; 3a 1-fixation groove; 3a 2-first spacing elongated slot; 3 b-a sliding frame; 3b1 — first stationary cylinder; 3 c-a guide strip; 3c 1-fixed orifices; 3 d-a slider; 3d 1-long runner; 3 e-a limiting plate; 3 f-positioning a plate; 3 g-a first limit bolt; 3 h-first spring; 3 i-a second spring; 3 j-slider; 3j1 — a second stationary cylinder; 3 k-positioning bar; 3k 1-cleats; 3k 2-third limiting long groove; 3 l-a second limit bolt; 3 m-positioning block; 3m 1-second limiting long groove; 3 n-a third spring; 3 o-a third limit bolt;

4-a clamping assembly;

5-a fixing frame;

6-welding the assembly.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

As shown in fig. 1 to 10, the present application provides:

a steel pipe high-efficiency welding device with accurate alignment comprises a workbench 1, a linear driving assembly 2, two positioning assemblies 3, a clamping assembly 4, a fixing frame 5 and a welding assembly 6, wherein the linear driving assembly 2 moves in a bidirectional linear mode, the two positioning assemblies 3 are arranged in two modes, the two positioning assemblies 3 are respectively connected with two moving ends of the linear driving assembly 2, each positioning assembly 3 comprises a fixing plate 3a, a sliding frame 3b, a guide strip 3c, a sliding strip 3d, a limiting plate 3e and a positioning plate 3f, the fixing plate 3a is fixedly connected with the moving ends of the linear driving assembly 2, the clamping assembly 4 is fixedly arranged at the center of the fixing plate 3a, a fixing groove 3a1 is formed in the center of one side face of the fixing plate 3a, the sliding frame 3b is arranged in the fixing groove 3a1 in a sliding mode, the sliding direction of the sliding frame 3b is parallel to the height direction of the workbench 1, the sliding frame 3b is arranged below the clamping assembly 4, the opening direction of the sliding frame 3b is parallel to the moving direction of the linear driving assembly 2, the guide strip 3c is fixedly arranged on the workbench 1, the length direction of the guide strip 3c is parallel to the moving direction of the linear driving assembly 2, the guide strip 3c is in sliding fit with the fixed groove 3a1, one end, close to the center of the workbench 1, of the guide strip 3c is arranged to be an inclined surface, the sliding strip 3d is in sliding fit with the sliding frame 3b, the sliding direction of the sliding strip 3d is parallel to the moving direction of the linear driving assembly 2, the length direction of the sliding strip 3d is parallel to the length direction of the sliding strip 3d, the limiting plate 3e is fixedly matched with the sliding strip 3d, the limiting plate 3e is fixedly arranged at one end, close to the sliding frame 3b, the sliding frame 3b is arranged between the limiting plate 3e and the sliding strip 3d, the positioning plate 3f is fixedly matched with the sliding strip 3d, and the positioning plate 3f is fixedly arranged at the other end of the sliding strip 3 d.

Based on the above embodiment, the technical problem that this application wants to solve is because can't confirm the displacement volume when the steel pipe is placed at centre gripping subassembly 4 in the use, leads to the position of fixed steel pipe welding position from the soldered connection to can't confirm to need staff to carry out different displacement volumes with two precision operation control many times when controlling two steel pipes to be close to each other, make the welding position of two steel pipes all be in the soldered connection below. Therefore, in the application, one end of a steel pipe is inserted into a clamping component 4 from one end of a fixing plate 3a far away from a positioning plate 3f by a worker, then the steel pipe is pushed to move towards the direction close to the positioning plate 3f, when the steel pipe is contacted with the positioning plate 3f, the clamping component 4 is operated to work to fix the steel pipe, a force moving towards the positioning plate 3f is always provided for the steel pipe when the clamping component 4 fixes the steel pipe, then a linear driving component 2 works to control the two positioning components 3 to work to drive the two steel pipes to approach each other, a sliding frame 3b moves along with a guide strip 3c in the moving process, so that the two positioning plates 3f move downwards before the two steel pipes are contacted, the linear driving component 2 continuously controls the two positioning components 3 to move, the two positioning plates 3f contacted with the welding parts of the two steel pipes are fully contacted push the two sliding strips 3d to move so as to avoid collision, compared with the prior art, the linear driving assembly 2, the positioning assembly 3, the clamping assembly 4 and the welding assembly 6 are matched to ensure that the welding position is located at the welding position by determining the movement amount of the steel pipe along the axis direction by the worker when the position of the steel pipe is fixed.

Further, as shown in fig. 6 to 8:

the positioning assembly 3 further comprises a first limiting bolt 3g, the first limiting bolt 3g is fixedly matched with the sliding frame 3b, the head of the first limiting bolt 3g is arranged inside the sliding frame 3b, a first limiting long groove 3a2 matched with the first limiting bolt 3g to work is formed in the fixing plate 3a, the length direction of the first limiting long groove 3a2 is parallel to the sliding direction of the sliding frame 3b, a long sliding groove 3d1 matched with the first limiting bolt 3g is formed in the sliding strip 3d, and the length direction of the long sliding groove 3d1 is parallel to the length direction of the sliding strip 3 d.

Based on the above-mentioned embodiment, the technical problem that the present application intends to solve is that the sliding frame 3b may move following the sliding bar 3d to be disconnected from the fixed plate 3 a. Therefore, the first limiting bolt 3g is always connected with the fixed plate 3a and the sliding frame 3b to ensure that the sliding frame 3b can only move along one direction, and compared with the prior art, the first limiting bolt 3g and the first limiting long groove 3a2 limit the moving direction of the sliding frame 3 b.

Further, as shown in fig. 6 to 8:

the positioning assembly 3 further comprises a first spring 3h, the first spring 3h is arranged between the sliding frame 3b and the fixing plate 3a, the axis of the first spring 3h is parallel to the sliding direction of the sliding frame 3b, and a first fixing cylinder 3b1 matched with the first spring 3h is arranged on the sliding frame 3 b.

Based on the above embodiments, the technical problem that the present application intends to solve is that the sliding frame 3b may be jammed and thus cannot drive the positioning plate 3f to move down. For this reason, thereby this application extension promotes the removal of sliding frame 3b under the compression state through sliding frame 3b when keeping away from guide strip 3c first spring 3h, compares in prior art, and the first spring 3h of this application guarantees that sliding frame 3b can remove at the correct time.

Further, as shown in fig. 5:

the guide strip 3c is provided with a fixing hole 3c1, a fixing hole 3c1 is formed in the inclined plane end of the guide strip 3c, the depth direction of the fixing hole 3c1 is parallel to the length direction of the guide strip 3c, and the fixing hole 3c1 is matched with the limiting plate 3e to work.

Based on the above-described embodiment, the present application intends to solve the technical problem that the slide bar 3d may collide with the guide bar 3c when moving. For this reason, this application will enter into fixed orifices 3c1 when driving limiting plate 3e through slide bar 3d and slide, compare in prior art, the fixed orifices 3c1 of this application provides the place of removal for slide bar 3 d.

Further, as shown in fig. 6 and 9:

the positioning assembly 3 further comprises a second spring 3i, the second spring 3i is arranged in the long slide groove 3d1, and the axis of the second spring 3i is parallel to the length direction of the long slide groove 3d 1.

Based on the above embodiments, the technical problem that the present application is intended to solve is that the position of the positioning plate 3f may not reach the maximum point when the steel pipe is positioned for multiple times. For this reason, this application is kept away from back second spring 3i work through two locating component 3 each other and is promoted locating plate 3f and remove to the maximum displacement point, compares in prior art, and the position when the second spring 3i of this application guarantees the steel pipe location is in the correct position.

Further, as shown in fig. 7 and 9:

the positioning component 3 further comprises a sliding block 3j, the sliding block 3j is arranged in the long sliding groove 3d1 in a sliding mode, the sliding direction of the sliding block 3j is parallel to the length direction of the long sliding groove 3d1, one end of the sliding block 3j is in a circular arc shape matched with the first limiting bolt 3g, the second spring 3i is arranged between the sliding block 3j and the positioning plate 3f, and the sliding block 3j is provided with a second fixing cylinder 3j1 matched with the second spring 3 i.

Based on the above embodiments, the technical problem that the present application intends to solve is that one end of the second spring 3i may be deflected when contacting the first stopper bolt 3 g. For this reason, this application replaces first spacing bolt 3g and the contact of second spring 3i through sliding block 3j and guarantees that the condition of second spring 3i during operation can not take place the deflection, compares in prior art, and the sliding block 3j of this application guarantees that the elasticity direction that second spring 3i provided is parallel with the sliding direction of sliding strip 3 d.

Further, as shown in fig. 6 and 10:

the positioning assembly 3 further comprises a positioning strip 3k, the positioning strip 3k is in sliding fit with the positioning plate 3f, the sliding direction of the positioning strip 3k is parallel to the height direction of the workbench 1, and the positioning strip 3k is arranged at the center of the positioning plate 3 f.

Based on the above embodiment, the technical problem that this application wants to solve is that locating plate 3f may not accomplish the location work when the diameter of steel pipe changes. For this reason, this application makes it can and the steel pipe contact between the difference through slide positioning strip 3k, compares in prior art, and the location strip 3k of this application makes the staff can fix a position different diameter steel pipes through slide positioning strip 3 k.

Further, as shown in fig. 6 and 10:

the positioning component 3 further comprises a second limiting bolt 3l, positioning blocks 3m and a third spring 3n, the second limiting bolt 3l is fixedly matched with the positioning strip 3k, two positioning blocks 3m are arranged on the positioning strip 3k in a sliding mode, the sliding direction of the positioning blocks 3m is parallel to the width direction of the positioning strips 3k, the two positioning blocks 3m are evenly arranged along the width direction of the positioning strips 3k, second limiting long grooves 3m1 matched with the second limiting bolts 3l are formed in the positioning blocks 3m, the third spring 3n is arranged between the two positioning blocks 3m, the axis of the third spring 3n is parallel to the sliding direction of the positioning blocks 3m, and positioning grooves matched with the positioning blocks 3m to work are formed in the positioning plates 3 f.

Based on the above-mentioned embodiments, the technical problem that the present application intends to solve is that the moving distance of the positioning bar 3k in the two positioning assemblies 3 may not be consistent. For this reason, this application makes location strip 3k can only slide by fixed position after the certain distance through providing certain power, compares in prior art, and the second spacing bolt 3l, locating piece 3m, third spring 3n and the constant head tank of this application guarantee that the displacement of two location strips 3k keeps unanimous.

Further, as shown in fig. 6 and 10:

a plurality of anti-slip strips 3k1 are arranged on the positioning strips 3k, and all the anti-slip strips 3k1 are uniformly arranged along the length direction of the positioning strips 3 k.

Based on the above embodiments, the technical problem that the present application intends to solve is that it is inconvenient to control the positioning bar 3k to move. For this reason, this application promotes the removal of location strip 3k through pressing the thumb on antislip strip 3k1 increase friction back, compares in prior art, and the contact area of the antislip strip 3k1 increase staff and location strip 3k of this application prevents the condition of skidding to appear.

Further, as shown in fig. 6 and 10:

the positioning assembly 3 further comprises a third limiting bolt 3o, the third limiting bolt 3o is fixedly matched with the positioning plate 3f, a third limiting long groove 3k2 matched with the third limiting bolt 3o is formed in the positioning strip 3k, and the length direction of the third limiting long groove 3k2 is parallel to the length direction of the positioning strip 3 k.

Based on the above embodiments, the technical problem that the positioning bar 3k may be separated from the positioning block 3m due to an excessive force when the worker pushes the positioning bar 3k to move. Therefore, in the application, after the positioning strip 3k moves for a certain distance, the third limiting bolt 3o contacts with the end of the third limiting long groove 3k2, and then the positioning strip 3k stops moving, compared with the prior art, the third limiting bolt 3o and the third limiting long groove 3k2 limit the moving range of the positioning strip 3 k.

The above examples, which are intended to represent only one or more embodiments of the present invention, are described in greater detail and with greater particularity, and are not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims (10)

1. A steel pipe efficient welding device with accurate alignment comprises a workbench (1), a linear driving assembly (2), positioning assemblies (3), clamping assemblies (4), a fixing frame (5) and a welding assembly (6), and is characterized in that the linear driving assembly (2) moves in a bidirectional linear mode, the number of the positioning assemblies (3) is two, the two positioning assemblies (3) are respectively connected with two moving ends of the linear driving assembly (2), and each positioning assembly (3) comprises a fixing plate (3a), a sliding frame (3b), a guide strip (3c), a sliding strip (3d), a limiting plate (3e) and a positioning plate (3 f);

the fixed plate (3a) is fixedly connected with the moving end of the linear driving assembly (2), the centre of the fixed plate (3a) is fixedly provided with a clamping assembly (4), and the centre of one side surface of the fixed plate (3a) is provided with a fixed groove (3a 1);

the sliding frame (3b) is arranged in the fixed groove (3a1) in a sliding mode, the sliding direction of the sliding frame (3b) is parallel to the height direction of the workbench (1), the sliding frame (3b) is arranged below the clamping assembly (4), and the opening direction of the sliding frame (3b) is parallel to the moving direction of the linear driving assembly (2);

the guide strip (3c) is fixedly arranged on the workbench (1), the length direction of the guide strip (3c) is parallel to the moving direction of the linear driving assembly (2), the guide strip (3c) is in sliding fit with the fixing groove (3a1), and one end, close to the center of the workbench (1), of the guide strip (3c) is arranged to be an inclined surface;

the sliding strip (3d) is in sliding fit with the sliding frame (3b), the sliding direction of the sliding strip (3d) is parallel to the moving direction of the linear driving assembly (2), and the length direction of the sliding strip (3d) is parallel to the length direction of the sliding strip (3 d);

the limiting plate (3e) is fixedly matched with the sliding strip (3d), the limiting plate (3e) is fixedly arranged at one end, close to the sliding frame (3b), of the sliding strip (3d), and the sliding frame (3b) is located between the limiting plate (3e) and the sliding strip (3 d);

the positioning plate (3f) is fixedly matched with the sliding strip (3d), and the positioning plate (3f) is fixedly arranged at the other end of the sliding strip (3 d).

2. The steel pipe high-efficiency welding equipment with accurate alignment according to claim 1, wherein the positioning assembly (3) further comprises a first limiting bolt (3 g);

the first limiting bolt (3g) is fixedly matched with the sliding frame (3b), the head of the first limiting bolt (3g) is arranged inside the sliding frame (3b), a first limiting long groove (3a2) matched with the first limiting bolt (3g) to work is formed in the fixing plate (3a), the length direction of the first limiting long groove (3a2) is parallel to the sliding direction of the sliding frame (3b), a long sliding groove (3d1) matched with the first limiting bolt (3g) is formed in the sliding strip (3d), and the length direction of the long sliding groove (3d1) is parallel to the length direction of the sliding strip (3 d).

3. The high-efficiency welding equipment for the steel pipes with accurate alignment according to claim 2, characterized in that the positioning assembly (3) further comprises a first spring (3 h);

the first spring (3h) is arranged between the sliding frame (3b) and the fixing plate (3a), the axis of the first spring (3h) is parallel to the sliding direction of the sliding frame (3b), and a first fixing cylinder (3b1) matched with the first spring (3h) is arranged on the sliding frame (3 b).

4. The steel pipe high-efficiency welding equipment with accurate alignment according to claim 3, wherein the guide strip (3c) is provided with a fixing hole (3c 1);

the fixing hole (3c1) is formed in the inclined end of the guide strip (3c), the depth direction of the fixing hole (3c1) is parallel to the length direction of the guide strip (3c), and the fixing hole (3c1) is matched with the limiting plate (3e) to work.

5. The high-efficiency welding equipment for the steel pipes with accurate alignment according to claim 4, characterized in that the positioning assembly (3) further comprises a second spring (3 i);

the second spring (3i) is provided in the long slide groove (3d1), and the axis of the second spring (3i) is parallel to the longitudinal direction of the long slide groove (3d 1).

6. The steel pipe high-efficiency welding equipment with accurate alignment according to claim 5, characterized in that the positioning component (3) further comprises a sliding block (3 j);

the sliding block (3j) is arranged in the long sliding groove (3d1) in a sliding mode, the sliding direction of the sliding block (3j) is parallel to the length direction of the long sliding groove (3d1), one end of the sliding block (3j) is arranged to be in a circular arc shape matched with the first limiting bolt (3g), the second spring (3i) is arranged between the sliding block (3j) and the positioning plate (3f), and the sliding block (3j) is provided with a second fixing cylinder (3j1) matched with the second spring (3 i).

7. The high-efficiency welding equipment for the steel pipes with accurate alignment according to claim 6, wherein the positioning assembly (3) further comprises a positioning strip (3 k);

the positioning strip (3k) is in sliding fit with the positioning plate (3f), the sliding direction of the positioning strip (3k) is parallel to the height direction of the workbench (1), and the positioning strip (3k) is arranged at the center of the positioning plate (3 f).

8. The steel pipe high-efficiency welding equipment with accurate alignment according to claim 7, wherein the positioning assembly (3) further comprises a second limiting bolt (3l), a positioning block (3m) and a third spring (3 n);

second spacing bolt (3l) and location strip (3k) fixed fit, it is provided with two locating pieces (3m) to slide on location strip (3k), the slip direction of locating piece (3m) is parallel with location strip (3k) width direction, two locating pieces (3m) evenly set up along the width direction of location strip (3k), set up second spacing elongated slot (3m1) of cooperation second spacing bolt (3l) on locating piece (3m), third spring (3n) sets up between two locating pieces (3m), the axis of third spring (3n) is parallel with the slip direction of locating piece (3m), set up the constant head tank of cooperation locating piece (3m) work on locating piece (3 f).

9. The steel pipe high-efficiency welding equipment with accurate alignment according to claim 8, wherein a plurality of anti-slip strips (3k1) are arranged on the positioning strip (3 k);

all the anti-skid strips (3k1) are uniformly arranged along the length direction of the positioning strip (3 k).

10. The steel pipe high-efficiency welding equipment with accurate alignment according to claim 9, wherein the positioning assembly (3) further comprises a third limiting bolt (3 o);

the third limiting bolt (3o) is fixedly matched with the positioning plate (3f), a third limiting long groove (3k2) matched with the third limiting bolt (3o) is formed in the positioning strip (3k), and the length direction of the third limiting long groove (3k2) is parallel to the length direction of the positioning strip (3 k).

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