CN216503239U

CN216503239U - Pipe fitting welding positioning device

Info

Publication number: CN216503239U
Application number: CN202123079208.1U
Authority: CN
Inventors: 杨球新; 邓小宁; 于木荣
Original assignee: Suzhou Guiyan Precision Technology Co ltd
Current assignee: Suzhou Guiyan Precision Technology Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-05-13
Anticipated expiration: 2031-12-09

Abstract

The utility model discloses a pipe welding positioning device, which comprises a base (1), a supporting component (3) for supporting a pipe, a clamping component (4) for clamping the pipe, and a positioning component (2) for limiting and supporting a branch elbow (28); the clamping assembly (4) comprises an upper pressing plate (5) and a lower pressing plate (6) which are detachably connected together; the supporting component (3) comprises a supporting column (12) and a supporting plate (15), the supporting column (12) is connected to the lower side of the lower pressing plate (6), and the supporting plate (15) is located at the bottom of the supporting column (12); the positioning assembly (2) comprises a bottom plate (18), a positioning groove (23) which is arranged on the upper side of the bottom plate (18) and is used for defining a branch bent pipe (28), and a cooling water channel (19) inside the bottom plate (18), and the pipe fitting welding positioning device has the advantages of accurately positioning a welded pipe and dissipating heat.

Description

Pipe fitting welding positioning device

Technical Field

The utility model relates to the field of welding positioning devices, in particular to a welding positioning device for pipe fittings.

Background

The structure of the existing shunt tube comprises a main tube, two straight tubes and four branch bent tubes, wherein flanges are arranged at the bottoms of the branch bent tubes. The flow dividing pipe is a structure symmetrical about the main pipe, the main pipe is used as a main body of the flow dividing pipe, and the two straight pipes are welded and matched with the circumferential surface of the main pipe; the two branch bent pipes are in welding fit with the circumferential surface of the straight pipe close to the head.

At present, chinese patent publication No. CN103433682A, publication date 2013.8.16, entitled welding positioning device, includes a bottom plate, two workpiece supports are symmetrically disposed at one end of the surface of the bottom plate, a limiting plate is symmetrically disposed between the two workpiece supports, a connecting rod pressing mechanism is disposed on the surface of the limiting plate, a positioning block is disposed on the surface of the bottom plate at the end where the workpiece supports are not disposed, a hole is disposed on the positioning block, and a groove is also disposed on the positioning block; the device mainly has the function of accurately welding the pipe-shaped welding part which is not easy to fix with a workpiece.

The existing shunt pipe structure comprises a main pipe, a straight pipe and a branch bent pipe, the diameters of the pipe fittings are different, and the pipe fittings are difficult to accurately place on the same level and are difficult to accurately weld. The traditional welding positioning device has a relatively limited requirement on the shape of a pipe fitting which can be processed, and has no good processing mode for the positioning welding of bent pipes and different pipe diameters; and metal pipe fittings can produce great heat in welding process, because pipe fittings itself is comparatively sealed, the heat is difficult to dispel, leads to the pipe fittings to warp easily and influences welding precision.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a pipe fitting welding and positioning device which has the advantages of accurately positioning and welding a pipe and dissipating heat.

A pipe welding positioning device comprises a base, a supporting assembly used for supporting a pipe, a clamping assembly used for clamping the pipe and a positioning assembly used for limiting and supporting a branch elbow; the clamping assembly comprises an upper pressing plate and a lower pressing plate which are detachably connected together; the supporting assembly comprises a supporting column and a supporting plate, the supporting column is connected to the lower side of the lower pressing plate, and the supporting plate is located at the bottom of the supporting column; the positioning assembly comprises a bottom plate, a positioning groove for fixing the branch bent pipe and a cooling water path inside the bottom plate, wherein the upper side of the bottom plate is provided with the positioning groove for fixing the branch bent pipe.

By adopting the technical scheme, when the shunt tubes are assembled and welded, the main tube, the straight tube and the branch bent tube of the shunt tubes are fixed on the clamping assembly, so that each tube fitting is accurately butted to a position to be welded; the support column is located clamping component's downside, and the support column of take the altitude can make the flange of branch return bend bottom hang down and put inside the constant head tank of bottom plate upside, inject the position of branch return bend, make branch return bend and straight tube welding more accurate. The pipe fitting welding time is heated yielding, and there is the cooling water route of intercommunication bottom plate inside, and the bottom plate water route leads to water and is used for the heat dissipation cooling during the pipe fitting welding, is heated deformation when avoiding the pipe fitting welding. Through above-mentioned technical scheme improved pipe fitting welded accuracy to prevent that the pipe fitting from being deformed because of being heated.

Further, the support column includes support column and bottom suspension dagger, the relative terminal surface of last support column and bottom suspension dagger all is equipped with the screw hole, go up be provided with between support column and the bottom suspension dagger with screw hole complex connecting screw, the connecting screw intermediate position is equipped with fixed coupling nut.

By adopting the technical scheme, the upper support column and the lower support column are in threaded fit connection with the connecting screw rod, the height of the support column is adjusted by rotating the connecting nut, and the support column is adapted to branch bent pipes with various specifications; the height of the supporting column can be finely adjusted by rotating the connecting nut, and the welding positioning precision is further improved.

Further, the bottom plate side is equipped with water inlet and the delivery port with the cooling water route intercommunication, the cooling water route is crooked "snakelike" structure.

Adopt above-mentioned technical scheme, water inlet and delivery port and outside recirculated cooling water intercommunication, the cooling water route of "snakelike" arranging has increased the area in water route in the bottom plate to dispel the heat to the bottom plate more fast, thereby be convenient for give off the heat that the pipe fitting produced in welding process and detach.

Further, the bottom plate comprises a left plate and a right plate; an upper connecting plate is arranged on one side of the left plate close to the right plate, and a convex block is arranged on the lower side of the upper connecting plate;

a lower connecting plate is arranged on one side, close to the left plate, of the right plate, a connecting groove matched with the convex block is formed in the upper side of the lower connecting plate, and the sum of the thicknesses of the upper connecting plate and the lower connecting plate is equal to the thickness of the bottom plate;

the lug and the connecting groove are both provided with a plurality of lugs along the length direction of the bottom plate.

Adopt above-mentioned technical scheme, left side board and right board have a plurality of convex holes and the spread groove of mutually supporting, dismantle the length that the reorganization can change the bottom plate through left side board and right board to the shunt tubes of the multiple length of adaptation.

Furthermore, one side of the upper pressure plate and one side of the lower pressure plate are rotatably connected, and the other side of the upper pressure plate and the lower pressure plate is provided with a butterfly nut and a bolt for fixing the upper pressure plate and the lower pressure plate.

By adopting the technical scheme, only the upper pressing plate and the lower pressing plate on one side need to be detached when the pipe fitting is assembled and disassembled, so that the time is saved and the work rate is increased.

Furthermore, a step-shaped groove is formed in the positioning groove.

Adopt above-mentioned technical scheme, the notch cuttype recess is used for injecing the branch return bend of multiple pipe diameter to this welding set's adaptation variety has been improved.

Furthermore, a plurality of positioning holes are uniformly distributed on the base.

Adopt above-mentioned technical scheme, the base can be dismantled the reorganization according to the pipe fitting demand of welding different specifications, and the locating hole of evenly arranging on the base is the base location of reorganization to the pipe fitting of different length of better adaptation.

Further, the bottom plate is a copper plate.

By adopting the technical scheme, the copper has excellent heat conductivity, and the heat dissipation efficiency can be better improved.

In conclusion, the utility model has the following beneficial effects:

1. the upper pressing plate and the lower pressing plate fix the pipe fittings, and the positioning grooves limit the branch bent pipes, so that the welding accuracy is improved;

2. the bottom plate is provided with a cooling water path for radiating and cooling the welded and heated pipe fittings to prevent the pipe fittings from deforming due to heating;

3. the equipment is simple in structure and easy to assemble, and the working efficiency is improved.

Drawings

FIG. 1 is a view showing an overall structure of the embodiment;

FIG. 2 is a diagram of an embodiment of a positioning bracket for a pipe fitting;

FIG. 3 is a schematic view of cooling water paths in a bottom plate according to an embodiment;

FIGS. 4 and 5 are diagrams of the structure of the base plate of the embodiment;

FIG. 6 is a schematic view of the product placement during operation of the embodiment.

In the figure: 1. a base; 5. an upper pressure plate; 6. a lower pressing plate; 7. a bolt; 8. a butterfly nut; 9. a rotating shaft; 10. an upper support column; 11. a lower support pillar; 12. a support pillar; 13. connecting a screw rod; 14. a threaded hole; 15. a support plate; 16. a screw; 17. a nut; 18. a base plate; 19. a cooling water path; 20. a water inlet; 21. a water outlet; 22. positioning holes; 23. positioning a groove; 24. connecting grooves; 25. a bump; 26. a main pipe; 27. a straight pipe; 28. a branch bent pipe; 29. and (4) a flange.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Referring to fig. 1, a pipe welding positioning device comprises a base 1, a supporting component 3, a clamping component 4 and a positioning component 2; the base 1 is provided with a plurality of positioning holes which are uniformly distributed, the positioning component 2 and the supporting component 3 are matched with the positioning holes to fix the clamping component on the base 1, and the clamping component 4 clamps and fixes the main pipe 26, the straight pipe 27 and the branch bent pipe 28; the device butt joints a main pipe 26, a straight pipe 27 and a branch bent pipe 28 to be welded to positions to be welded, so that the effect of accurate welding is achieved.

Referring to fig. 3, 4 and 5, the positioning assembly 2 includes a bottom plate 18, a cooling water path 20, a positioning groove 23 and a positioning hole 22; the bottom plate 18 comprises a left plate and a right plate, an upper connecting plate and a lower connecting plate are respectively fixed at one end of the left plate close to one end of the right plate, the thickness of the upper connecting plate after the upper connecting plate is complemented with the thickness of the lower connecting plate is consistent with that of the bottom plate 18, the upper connecting plate and the left plate are integrally formed, and the lower connecting plate and the right plate are integrally formed.

Referring to fig. 3, 4 and 5, a 'snake-shaped' cooling water channel 19 is respectively arranged inside the left plate and the right plate, the water inlet 20 of the cooling water channel 19 of the left plate is positioned on the left side surface of the left plate, and the water outlet 21 of the cooling water channel of the left plate is positioned on the right front side surface of the left plate; the cooling water channel 19 of the right plate has a water inlet 20 on the right side of the right plate and a water outlet 21 on the left front side of the right plate. The upper side of bottom plate 18 is equipped with constant head tank 23, and constant head tank 23 is inside to be the trapezoidal recess, is equipped with the locating hole 22 that is used for fixed bottom plate 18 on the bottom plate 18.

Referring to fig. 2, the clamping assembly 4 includes an upper plate 5, a lower plate 6, the upper plate 5 is an upward convex arc structure, the lower plate 6 is a downward concave arc structure, the upper plate 5 and one side of the lower plate 6 are connected by rotating an axis of rotation 9, the other side is connected by a butterfly nut 8 and a bolt 7, the upper plate 5 and the lower plate 6 are combined into an annular hoop matched with the radian of the pipe, the pipe can be clamped more firmly, and the butterfly nut 8 can be screwed without adopting tools, so that the installation is more convenient.

Referring to fig. 2, the support assembly 3 includes an upper support column 10, a lower support column 11, a connecting screw 13, and a support plate 15; go up support column 10 and be located the downside of holding down plate 6, the terminal surface that goes up support column 10 and lower support column 11 are relative all is equipped with screw hole 14, lower support column 11 accessible connecting screw 13 links together with last support column 10, be equipped with fixed coupling nut 17 on the connecting rod, refer to figure 6, can be according to the height of the length adjustment support column 12 of the elbow of branch return bend 28 bottom to also can rotate coupling nut and finely tune support column 12, further improve welding accuracy.

Referring to fig. 2, the support plate 15 is located at the lower end of the support column 12, the support plate 15 is provided with a positioning hole, and the positioning hole on the support plate 15 is fixed with the bottom plate 18 and the positioning hole on the base 1 by using the bolt 7 and the nut 17.

The using process is briefly described as follows:

referring to fig. 1, 2, 4 and 6, before welding, the main pipe 26, the straight pipe 27, the branch bend and the welding positioning device to be welded are assembled and positioned; the branch bent pipe 28 and the straight pipe 27 are clamped by the upper pressing plate 5 and the lower pressing plate 6 and fixed by the butterfly nuts 8 and the bolts 7, the flange 29 of the elbow at the bottom of the branch bent pipe 28 can be limited in the positioning groove 23 due to the certain height of the supporting column 12, then the supporting plate 15, the bottom plate 18 and the positioning hole on the base 1 are aligned and fixed by the screw rod 16 and the nut 17, finally the main pipe 26 is clamped and fixed by the upper pressing plate 5 and the lower pressing plate 6, the supporting column 12 is adjusted to the position that the main pipe 26, the branch bent pipe 28 and the straight pipe 27 are on the same horizontal plane, and then the supporting plate 15 is directly fixed with the base 1 by the screw rod 16 and the nut 17. Finally the tube is connected to the correct position for welding.

Referring to fig. 3, during welding, the water inlets 20 of the left plate and the right plate of the bottom plate 18 are communicated with external circulating cooling water, and the cooling water path 19 in a serpentine shape increases the area of the water path in the bottom plate 18, so that heat dissipation of the bottom plate 18 is accelerated, heat generated by the pipe fitting in the welding process is dissipated, the pipe fitting is prevented from being deformed, and the pipe fitting welding precision is improved.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A pipe welding positioning device is characterized by comprising a base (1), a supporting assembly (3) for supporting a pipe, a clamping assembly (4) for clamping the pipe, and a positioning assembly (2) for limiting and supporting a branch elbow (28); the clamping assembly (4) comprises an upper pressing plate (5) and a lower pressing plate (6) which are detachably connected together;

the supporting component (3) comprises a supporting column (12) and a supporting plate (15), the supporting column (12) is connected to the lower side of the lower pressing plate (6), and the supporting plate (15) is located at the bottom of the supporting column (12);

the positioning assembly (2) comprises a bottom plate (18), a positioning groove (23) which is provided with a branch bent pipe (28) at the upper side of the bottom plate (18), and a cooling water channel (19) inside the bottom plate (18).

2. The pipe fitting welding positioning device according to claim 1, wherein the supporting column (12) comprises an upper supporting column (10) and a lower supporting column (11), threaded holes (14) are formed in opposite end faces of the upper supporting column (10) and the lower supporting column (11), a connecting screw rod (13) matched with the threaded holes (14) is arranged between the upper supporting column (10) and the lower supporting column (11), and a fixed connecting nut is arranged in the middle of the connecting screw rod (13).

3. A pipe welding positioning device according to claim 1, characterized in that the bottom plate (18) is provided with a water inlet (20) and a water outlet (21) on the sides thereof, which are communicated with a cooling water path (19), and the cooling water path (19) is of a bent 'serpentine' structure.

4. A pipe welding positioning device according to claim 3, characterized in that said bottom plate (18) comprises a left plate and a right plate; an upper connecting plate is arranged on one side of the left plate close to the right plate, and a lug (25) is arranged on the lower side of the upper connecting plate;

a lower connecting plate is arranged on one side, close to the left plate, of the right plate, a connecting groove (24) matched with the convex block (25) is formed in the upper side of the lower connecting plate, and the sum of the thicknesses of the upper connecting plate and the lower connecting plate is equal to the thickness of the bottom plate (18);

the protruding blocks (25) and the connecting grooves (24) are arranged in a plurality along the length direction of the bottom plate (18).

5. The pipe fitting welding and positioning device according to claim 1, wherein one side of the upper pressing plate (5) and one side of the lower pressing plate (6) are rotatably connected, and the other side of the upper pressing plate and the lower pressing plate is provided with a butterfly nut (8) and a bolt (7) for fixing the upper pressing plate and the lower pressing plate.

6. A pipe welding positioning device as claimed in any one of claims 1 to 5, characterized in that the positioning slot (23) has a stepped recess therein.

7. A pipe welding and positioning device as claimed in any one of claims 1 to 5, wherein the base (1) is provided with a plurality of positioning holes which are uniformly arranged.

8. A pipe welding positioning device according to claim 4, characterized in that the bottom plate (18) is a copper plate.