CN217316731U - Positioning device for inner circular seam welding - Google Patents

Abstract

The utility model relates to a positioner for inner circumferential weld welding, it includes the welding case, the inside rigid coupling workstation of welding case, place last pipeline and lower pipeline of coaxial line pile up neatly on the workstation, it is equipped with the supporting shoe with lower pipeline contact position outer wall symmetry to go up the pipeline, supporting shoe internal contact connection compensation piece, the supporting shoe stretches out the equal rigid coupling connecting block in end, run through and sliding connection has the cross axle on the connecting block, two sections lead screws of rigid coupling are run through to cross axle outer wall both ends coaxial line, the lead screw meshes with the connecting block respectively, the fixed handle of cross axle lateral wall rigid coupling, twist rotatory handle, make the screw rod rotatory, promote compensation piece contact extrusion at last pipeline and lower pipeline outer wall, at the in-process of adjustment, can make compensation piece and last pipeline and lower pipeline contact surface increase as far as possible, this device can fix the pipeline of different diameters sizes and weld.

Description

Positioning device for inner circular seam welding

Technical Field

The application relates to the technical field of inner circular seam welding, in particular to a positioning device for inner circular seam welding.

Background

Pipe girth welding is a common type of welding in the welding art. The circumferential weld is generally divided into an inner circumferential weld and an outer circumferential weld, most of circumferential weld welding machine systems on the market at present are used for welding the outer circumferential weld, the circumferential weld is usually positioned by using an inner cavity of a pipe fitting, and the outer side of the pipe fitting needs to be positioned by welding the inner circumferential weld.

However, the existing pipeline outer wall positioning device for inner girth welding is inconvenient to use pipelines with different sizes for fixing, and is not high in applicability. Accordingly, those skilled in the art have provided a positioning apparatus for inner girth welding to solve the problems set forth in the above background art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems set forth in the background art described above, the present application provides a positioning apparatus for inner girth welding.

The positioning device for inner circular seam welding provided by the application adopts the following technical scheme:

the utility model provides a positioner for inner circumferential weld welding, includes the welding case, the inside rigid coupling workstation of welding case, place coaxial line pile up neatly last pipeline and lower pipeline on the workstation, it is equipped with the supporting shoe with lower pipeline contact position outer wall symmetry to go up the pipeline, the inside contact connection compensation piece of supporting shoe, the supporting shoe stretches out the equal rigid coupling connecting block in end, run through and sliding connection has the cross axle on the connecting block, two sections lead screws of rigid coupling are run through to cross axle outer wall both ends coaxial line, the lead screw meshes with the connecting block respectively, the fixed handle of cross axle lateral wall rigid coupling.

Through adopting above-mentioned technical scheme, place the vertical pile up neatly of upper pipeline and lower pipeline, the rotatory fixed handle for the cross axle drives the lead screw rotation of rigid coupling, makes connecting block and lead screw meshing, thereby the supporting shoe that the connecting block drove the rigid coupling is close to each other, centers on the outer lane at upper pipeline and lower pipeline.

Preferably, the bottom end of the middle part of the workbench is connected with a cylinder through a bolt, and the cylinder pushes a positioning block which is in threaded connection with a push rod to move up and down.

Through adopting above-mentioned technical scheme, start the cylinder for the push rod promotes the locating piece and slides in the inside of lower pipeline until the inside position fixation that carries out of upper pipeline and lower pipeline contact position.

Preferably, the bottom end of the supporting block is fixedly connected with a sliding block, the sliding block penetrates through the workbench to form a sliding chute, the bottom end of the sliding block is fixedly connected with a roller, and the roller penetrates through the inner wall of the sliding chute to form a rolling groove.

Through adopting above-mentioned technical scheme, the slider slides along the spout and leads, and the roll of gyro wheel reduces the friction.

Preferably, the sliding block is of a dovetail block structure, the sliding groove is of a dovetail groove structure corresponding to the sliding block, and two ends of the inner wall of the sliding groove are fixedly connected with the anti-collision blocks.

Through adopting above-mentioned technical scheme, special shape restricts, plays the effect of direction.

Preferably, the outer wall of the supporting block is provided with a plurality of rotating handles, the rotating handles are fixedly connected with a screw, the screw penetrates through the supporting block and is in threaded connection with the inside of the supporting block, the extending end of the screw penetrates through the compensation block and rotates inside the compensation block, a flat groove penetrates through the position, in contact with the compensation block, of the screw, and the outer wall of the compensation block uniformly penetrates through a plurality of compensation grooves.

Through adopting above-mentioned technical scheme, wrench movement rotation handle for the screw rod is rotatory, promotes the contact extrusion of compensation piece at upper pipeline and lower pipeline outer wall.

To sum up, this application includes following beneficial technological effect:

the vertical pile up neatly of upper pipe way and lower pipeline is placed, rotatory fixed handle, it is rotatory to make the cross axle drive the lead screw of rigid coupling, make connecting block and lead screw meshing, thereby the supporting shoe that the connecting block drove the rigid coupling is close to each other, center on the outer lane at upper pipe way and lower pipeline, twist rotatory handle, make the screw rod rotatory, promote the contact extrusion of compensation piece at upper pipe way and lower pipeline outer wall, at the in-process of adjustment, can make compensation piece and upper pipe way and lower pipeline contact surface increase as far as possible, this device can be fixed to the pipeline of different diameters size, and the welding is convenient for.

Drawings

FIG. 1 is a schematic structural diagram of a positioning device for inner circumferential seam welding according to an embodiment of the present application;

FIG. 2 is a schematic view of the structure of FIG. 1 taken from the perspective A-A in the example of the present application;

FIG. 3 is a schematic view of the connection structure of the supporting block and the sliding block in the embodiment of the present application;

FIG. 4 is an enlarged schematic view of a portion A in FIG. 1 according to an embodiment of the present disclosure;

fig. 5 is an enlarged schematic structural diagram at B in fig. 2 in the embodiment of the present application.

Description of reference numerals: 1. welding a box; 2. a work table; 3. an upper pipeline; 4. a lower pipeline; 5. a support block; 6. a compensation block; 7. connecting blocks; 8. a lead screw; 9. fixing a handle; 21. a push rod; 22. a cylinder; 23. positioning blocks; 25. a chute; 26. a slider; 27. a roller; 28. a stopper; 31. rotating the handle; 32. flattening the groove; 33. a screw; 34. and a compensation groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a positioning device for inner circular seam welding. Referring to fig. 1-5, a positioning device for inner circumferential seam welding comprises a welding box 1 (the side wall of the welding box 1 is provided with a door which can be opened and closed and is not shown in the drawing), a workbench 2 is fixedly connected inside the welding box 1, an upper pipeline 3 and a lower pipeline 4 which are coaxially stacked are arranged on the workbench 2, the upper pipeline 3 and the lower pipeline 4 are vertically stacked, supporting blocks 5 are symmetrically arranged on the outer walls of the contact positions of the upper pipeline 3 and the lower pipeline 4, compensation blocks 6 are connected inside the supporting blocks 5 in a contact manner, the extending ends of the supporting blocks 5 are fixedly connected with connecting blocks 7, a cross shaft is connected on the connecting blocks 7 in a penetrating and sliding manner, two sections of lead screws 8 (the two sections of lead screws 8 have the same modulus, the cross shafts with opposite directions and positioned at the two ends of the lead screws 8 are fixedly connected with stoppers 28 of the coaxial lines, which are shown in the drawing) respectively, the lead screws 8 are meshed with the connecting blocks 7, and the side wall is fixedly connected with a fixed handle 9, the fixed handle 9 is rotated, so that the transverse shaft drives the lead screw 8 fixedly connected to rotate, the connecting block 7 is meshed with the lead screw 8, and the connecting block 7 drives the supporting block 5 fixedly connected to be close to each other and surround the outer rings of the upper pipeline 3 and the lower pipeline 4.

2 middle part bottom of workstation adopts bolted connection cylinder 22, and cylinder 22 promotes the locating piece 23 up-and-down motion of threaded connection on push rod 21 (locating piece 23 is the current structure of inner circular seam welding among the prior art, for the cylinder block form, no longer gives details), passes through threaded connection in push rod 21 upper end with the suitable locating piece 23 of size, starts cylinder 22 for push rod 21 promotes locating piece 23 and inside the sliding of lower pipeline 4 until the pipeline 3 carries out the rigidity to inside with lower pipeline 4 contact position.

The bottom end of the supporting block 5 is fixedly connected with a sliding block 26, the sliding block 26 penetrates through the workbench 2 to form a sliding groove 25, the sliding block 26 slides along the sliding groove 25 to guide, the bottom end of the sliding block 26 is fixedly connected with a roller 27, the roller 27 penetrates through the inner wall of the sliding groove 25 to form a rolling groove, and the rolling of the roller 27 reduces friction.

The slide block 26 is a dovetail block structure, the slide groove 25 is a dovetail groove structure corresponding to the slide block, and two ends of the inner wall of the slide groove 25 are fixedly connected with anti-collision blocks (preferably adopting a square block structure made of rubber).

5 outer walls of supporting shoe are equipped with the rotatory handle 31 of a plurality of, rotatory handle 31 rigid coupling screw rod 33, twist rotatory handle 31, make screw rod 33 rotatory, screw rod 33 runs through supporting shoe 5 and threaded connection inside it, screw rod 33 stretches out the end and runs through compensation piece 6 and rotate inside it, promote the contact extrusion of compensation piece 6 at last pipeline 3 and 4 outer walls of lower pipeline, it has flat slot 32 to lie in screw rod 33 and the penetration of compensation piece 6 contact position, rotatory handle 31 has a plurality of, so at the in-process of adjustment, can make compensation piece 6 and last pipeline 3 and 4 contact surface increase as far as possible of lower pipeline, compensation piece 6 outer wall evenly runs through a plurality of compensation groove 34, the interval of adjustment is bigger for the setting up of compensation groove 34.

The implementation principle of the positioning device for inner circular seam welding in the embodiment of the application is as follows: when the device is used, the upper pipeline 3 and the lower pipeline 4 are vertically stacked, the fixing handle 9 is rotated, the transverse shaft drives the fixedly connected screw rod 8 to rotate, the connecting block 7 is meshed with the screw rod 8, the connecting block 7 drives the fixedly connected supporting blocks 5 to be close to each other, the rotating handle 31 is twisted around the outer rings of the upper pipeline 3 and the lower pipeline 4, the screw rod 33 is rotated, the compensating block 6 is pushed to contact and extrude the outer walls of the upper pipeline 3 and the lower pipeline 4, the sliding block 26 slides along the sliding groove 25 to guide at the moment, the rolling of the roller 27 reduces friction, and a plurality of the rotating handles 31 are arranged, so that the contact surfaces of the compensating block 6 and the upper pipeline 3 and the lower pipeline 4 can be increased as much as possible in the adjusting process, the adjusting interval is larger due to the arrangement of the compensating groove 34, and the positioning block 23 with proper size is connected to the upper end of the push rod 21 through threads after the fixing is completed, the cylinder 22 is activated so that the push rod 21 pushes the positioning block 23 to slide inside the lower pipe 4 until the contact position of the upper pipe 3 and the lower pipe 4 fixes the position of the inside.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (5)

1. A positioning device for inner girth welding, comprising a welding box (1), characterized in that: welding case (1) inside rigid coupling workstation (2), place last pipeline (3) and lower pipeline (4) of coaxial line pile up neatly on workstation (2), it is equipped with supporting shoe (5) with lower pipeline (4) contact position outer wall symmetry to go up pipeline (3), supporting shoe (5) internal contact connection compensation piece (6), supporting shoe (5) stretch out end equal rigid coupling connecting block (7), run through and sliding connection has the cross axle on connecting block (7), two sections lead screw (8) of rigid coupling are run through to cross axle outer wall both ends coaxial line, lead screw (8) mesh with connecting block (7) respectively, fixed handle (9) of cross axle lateral wall rigid coupling.

2. A positioning device for inner girth welding according to claim 1, wherein: the bottom end of the middle part of the workbench (2) is connected with a cylinder (22) through a bolt, and the cylinder (22) pushes a positioning block (23) which is in threaded connection with a push rod (21) to move up and down.

3. A positioning device for inner girth welding according to claim 2, wherein: the bottom end of the supporting block (5) is fixedly connected with a sliding block (26), the sliding block (26) penetrates through the workbench (2) to form a sliding groove (25), the bottom end of the sliding block (26) is fixedly connected with a roller (27), and the roller (27) penetrates through the inner wall of the sliding groove (25) to form a rolling groove.

4. A positioning device for inner girth welding according to claim 3, wherein: the sliding block (26) is of a dovetail block structure, the sliding groove (25) is of a dovetail groove structure corresponding to the sliding block, and anti-collision blocks are fixedly connected to two ends of the inner wall of the sliding groove (25).

5. A positioning device for inner girth welding according to claim 3, wherein: supporting shoe (5) outer wall is equipped with a plurality of rotatory handle (31), rotatory handle (31) rigid coupling screw rod (33), screw rod (33) run through supporting shoe (5) and threaded connection inside it, screw rod (33) stretch out the end and run through compensation piece (6) and rotate inside it, lie in screw rod (33) and compensation piece (6) contact position and run through flat slot (32), a plurality of compensation groove (34) are evenly run through to compensation piece (6) outer wall.

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