CN216882365U

CN216882365U - Finned tube welding positioning device

Info

Publication number: CN216882365U
Application number: CN202122900429.4U
Authority: CN
Inventors: 李旭彤; 江伟; 周海明; 李冬琼; 卢杰
Original assignee: Chengdu Ruiqi Zhizao Technology Co ltd
Current assignee: Chengdu Ruiqi Zhizao Technology Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-07-05
Anticipated expiration: 2031-11-24

Abstract

The utility model discloses a fin tube welding and positioning device which comprises a plurality of threaded pull rods (1) which are arranged in parallel, wherein at least two limiting plates (2) are sleeved on the threaded pull rods (1), and limiting holes (20) convenient for placing fin tubes are formed in the limiting plates (2); a distance pipe (3) is sleeved on the threaded pull rod (1), and the distance pipe (3) is used for limiting the distance between the adjacent limiting plates (2); one end of the threaded pull rod (1) is screwed with a compression nut (4), and the inner side end of the compression nut (4) is abutted with the limiting plate (2); the limiting plate (2) is of a disc-shaped structure, the circumferential edge of the limiting plate is provided with a pressing lug (21) protruding outwards, a fixing hole (211) is formed in the pressing lug (21), and the threaded pull rod (1) penetrates through the fixing hole (211). The finned tube positioning device has the advantages of convenience for finned tube positioning and improvement of processing efficiency.

Description

Finned tube welding positioning device

Technical Field

The utility model relates to the field of finned tube forming and machining, in particular to a finned tube welding and positioning device.

Background

The finned tube is formed by welding a round tube and a plurality of fins, and in the process of welding the fins of the finned tube, when the fins are positioned, particularly when the fins are bent and deformed, after manual positioning welding is carried out manually, the finned tube has large deviation, and a large amount of operation time of an operator is needed for processing the finned tube, so that not only time is wasted, but also the processing precision cannot be guaranteed.

In patent CN201821373188.4, a positioning and clamping device for assembling an integral steel finned tube is disclosed, comprising an operation bottom plate and a finned tube, wherein a first sliding groove is formed in the operation bottom plate, a first sliding rod is arranged in the first sliding groove, a positioning plate is welded at one end of the first sliding rod, an operation groove is formed in the positioning plate, an adjusting plate is arranged in the operation groove, an adjusting sleeve plate is sleeved on the adjusting plate, a locking device is arranged between the adjusting sleeve plate and the adjusting plate, when in use, two ends of the finned tube can be placed in clamping grooves on the clamping plate in the positioning plate, the clamping grooves are in a semicircular structure, certain clamping and position limiting effects can be performed on the tube head of the finned tube, the position of the tube head on the clamping plate is ensured, then the tube head and the finned tube can be assembled from two sides, and the position of the finned tube is relatively fixed, the convenience of assembly is improved, but the patent cannot adapt to the condition that the fins are bent and deformed.

In patent cn201721266597.x, a positioning and clamping device for fin tube assembly is disclosed, which comprises a base, a first positioning seat, a second positioning seat and a traction mechanism, wherein the base is of a rectangular frame structure, a guide rail is fixed on each of two long sides of the base, the first positioning seat is fixed on the side of one short side on the base, the second movable positioning seat is erected on the side of the other short side on the base, the first positioning seat and the second positioning seat are equal in size and same in shape, the first positioning seat and the second positioning seat are arranged oppositely, the first positioning seat and the second positioning seat are both composed of a positioning base, a rectangular positioning frame and a supporting rod, positioning blocks are fixed on two opposite side surfaces of the base at the end of the first positioning seat, a through hole is formed in the middle of each positioning block, and the traction mechanism is fixed on two opposite side surfaces of the positioning base. The novel fin assembling machine has the advantages of being simple and reasonable in structure, low in cost, convenient to operate, high in universality, time-saving and labor-saving, good in positioning effect, high in assembling efficiency and good in assembling quality, but the novel fin assembling machine cannot adapt to the situation that fins are bent and deformed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a welding and positioning device for a fin tube, so that the defects are overcome.

The purpose of the utility model is realized by the following technical scheme:

a fin tube welding position device, comprising:

the finned tube comprises a plurality of parallel threaded pull rods, wherein at least two limiting plates are sleeved on the threaded pull rods, and limiting holes convenient for placing finned tubes are formed in the limiting plates.

Further, the threaded pull rod is sleeved with a distance tube, and the distance tube is used for limiting the distance between the adjacent limiting plates.

Furthermore, one end of the threaded pull rod is screwed with a compression nut, and the inner side end of the compression nut is abutted to the limiting plate.

Furthermore, the limiting plate is of a disc-shaped structure, the circumferential edge of the limiting plate is provided with a pressing lug protruding outwards, a fixing hole is formed in the pressing lug, and the threaded pull rod penetrates through the fixing hole.

Furthermore, the limiting holes comprise a central hole and a plurality of rectangular holes, the central hole is formed in the limiting plate, the rectangular holes are communicated with the central hole, and the rectangular holes are uniformly formed in the circumferential edge of the central hole.

Furthermore, a plurality of first trapezoidal grooves and a plurality of second trapezoidal grooves are arranged on two sides of the rectangular hole in the length direction, and the adjacent first trapezoidal grooves and the adjacent second trapezoidal grooves form a concave-convex structure.

The utility model has the beneficial effects that:

the limiting plate in the fin tube welding and positioning device provided by the utility model has the advantages that through the arrangement of the first trapezoidal groove and the second trapezoidal groove, the limiting hole not only has a limiting effect, but also can be smoothly penetrated and installed when the fins are assembled and welded under the condition that the fins are deformed; the central hole of the limiting plate is provided with smooth chamfers, so that fins can be smoothly penetrated and installed without damaging the steel pipe base material; 12 rectangular holes are uniformly distributed in the limiting plate, so that the fins can be assembled and welded at one time under the condition of multiple azimuth angles, and a positioning device does not need to be frequently replaced; the connecting assembly is composed of the threaded pull rod, the compression nut and the distance tube, the connecting assembly has the function of fixing the limiting plate, and the distance tube can be adjusted according to fins with different lengths, so that the length of the welding and positioning device is adjusted.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

fig. 2 is a front view of the limiting plate;

FIG. 3 is a schematic view of the structure of the finned tube;

FIG. 4 is a schematic view of the finned tube penetrating the inside of the retainer plate.

In the figure, 1-thread pull rod, 2-limit plate, 20-limit hole, 21-hold-down lug, 211-fixed hole, 212-first trapezoidal groove, 213-second trapezoidal groove, 3-distance tube and 4-hold-down nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention 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 figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In one embodiment, as shown in fig. 1 to 4, a fin tube welding and positioning device includes: the finned tube fixing device comprises a plurality of parallel threaded pull rods 1, wherein at least two limiting plates 2 are sleeved on the threaded pull rods 1, and limiting holes 20 convenient for placing finned tubes are formed in the limiting plates 2.

In the embodiment, the finned tube is formed by welding a round tube and a plurality of fins; the threaded pull rod 1 is specifically provided with three threaded pull rods, which are respectively as follows: the device comprises a first limiting plate, a second limiting plate and a third limiting plate, wherein the first limiting plate, the second limiting plate and the third limiting plate are arranged in a triangular shape; the threaded pull rod 1 is formed by fixing a pull rod head and a pull rod, threads are arranged on the outer surface of the pull rod, and the inner side surface of the pull rod head is abutted to the third limiting plate.

The utility model is further configured to: the threaded pull rod 1 is sleeved with a distance tube 3, and the distance tube 3 is used for limiting the distance between the adjacent limiting plates 2.

In this embodiment, the threaded pull rod 1 is sleeved with two distance pipes 3, and the distance pipes 3 have the same length and are located between the first limiting plate and the second limiting plate and between the second limiting plate and the third limiting plate.

The utility model is further configured to: one end of the threaded pull rod 1 is screwed with a compression nut 4, and the inner side end of the compression nut 4 is abutted to the limiting plate 2.

In the embodiment, the compression nut 4 is screwed on the pull rod, and the end surface of the inner side of the compression nut is abutted with the end surface of the outer side of the first limiting plate; constitute coupling assembling through screw pull rod 1, distance tube 3 and gland nut 4, coupling assembling except playing fixed limiting plate effect, can also adjust welding position device's length through changing the distance tube 3 of different lengths to the fin of different length.

The utility model is further configured to: the limiting plate 2 is of a disc-shaped structure, the circumferential edge of the limiting plate is provided with a pressing lug 21 protruding outwards, a fixing hole 211 is formed in the pressing lug 21, and the threaded pull rod 1 penetrates through the fixing hole 211.

In this embodiment, the number of the pressing lugs 21 is specifically three, and the pressing lugs are arranged in a triangular array, the pressing lugs 21 and the limiting plate 2 are in an integrally formed structure, and the end face of the pressing lug 21 is abutted to the distance tube 3.

The utility model is further configured to: the limiting hole 20 comprises a central hole and a plurality of rectangular holes which are formed in the limiting plate 2, the central hole is communicated with the rectangular holes, and the rectangular holes are uniformly formed in the circumferential edge of the central hole.

In the embodiment, the joint of the central hole and the rectangular hole is a round angle, the end surface of the inner side of the round angle is provided with an arc-shaped edge which is concave inwards, and the arc-shaped groove is attached to the outer wall of the circular tube; the central hole is matched with the circular tube, and the rectangular holes are used for placing fins; the number of the rectangular holes is 12.

Through the arrangement of the round corners and the arc-shaped edges, the fins can be ensured to be smoothly penetrated and installed, and the base metal of the steel pipe is damaged; 12 rectangular holes are uniformly distributed in the limiting plate 2, so that the fin can be assembled and welded at one time under the condition of multiple azimuth angles, and a positioning device does not need to be frequently replaced; the limiting plate 2 adopts a tooth-type limiting structure, has a limiting effect, and can enable the positioning device to smoothly penetrate and mount when the fins are assembled and welded under the condition that the fins are deformed.

The utility model is further configured to: the two sides of the rectangular hole in the length direction are provided with a plurality of first trapezoidal grooves 212 and a plurality of second trapezoidal grooves 213, and the adjacent first trapezoidal grooves 212 and second trapezoidal grooves 213 form a concave-convex structure.

In this embodiment, the first trapezoidal groove 212 is formed by recessing towards the inner side of the rectangular hole, and the second trapezoidal groove 213 is formed by protruding towards the outer side of the rectangular hole; the first trapezoidal grooves 212 and the second trapezoidal grooves 213 are arranged in a staggered manner; the length of the first trapezoidal groove 212 is smaller than that of the second trapezoidal groove 213.

Because the shape of fin is not a smooth horizontal piece, concave-convex structure through the formation of first dovetail groove 212 and second dovetail groove 213 for it is spacing to be convenient for carry out the fin of this kind of crooked face, makes the fin can not rock at the rectangular hole.

The second embodiment and the first embodiment are different in that:

the embodiment is further configured as follows: the utility model discloses a threaded pull rod, including threaded pull rod 1, first limiting plate cover, second limiting plate cover, threaded pull rod 3, threaded pull rod 1 goes up the cover and is equipped with a distance tube 3, the middle part of distance tube 3 is located to the second limiting plate cover, the outer wall of distance tube 3 has the screw thread, distance tube 3 has connect two adjusting nut soon, the second limiting plate is located between two adjusting nut, adjusts the position of second limiting plate through adjusting nut, first limiting plate and third limiting plate cover are located threaded pull rod 1, gland nut 4 is located the outside of first limiting plate, first limiting plate medial surface and distance tube 3 left side terminal surface looks butt, the medial surface and the 3 right side terminal surface looks butt of distance tube of third limiting plate.

The third embodiment and the second embodiment are different in that:

the second limiting plate and the distance tube 3 are of an integral structure, and the second limiting plate is located in the middle of the distance tube 3.

The working principle of the utility model is as follows:

sleeving a third limiting plate on the threaded pull rod 1, sleeving an installation distance pipe 3, sleeving a second limiting plate, sleeving the installation distance pipe 3, sleeving a first limiting plate, and screwing and compressing through a compression nut 4; then, the round tube and the fins are placed in the limiting hole 20 in a penetrating mode, and then the round tube and the fins are welded into the finned tube.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A finned tube welding positioning device is characterized by comprising:

the finned tube comprises a plurality of parallel threaded pull rods (1), wherein at least two limiting plates (2) are sleeved on the threaded pull rods (1), and limiting holes (20) convenient for placing finned tubes are formed in the limiting plates (2).

2. The fin tube welding positioning device according to claim 1, wherein: the thread pull rod (1) is sleeved with a distance tube (3), and the distance tube (3) is used for limiting the distance between the adjacent limiting plates (2).

3. The fin tube welding positioning device according to claim 1, wherein: one end of the threaded pull rod (1) is screwed with a compression nut (4), and the inner side end of the compression nut (4) is abutted to the limiting plate (2).

4. The fin tube welding positioning device according to claim 1, wherein: the limiting plate (2) is of a disc-shaped structure, the circumferential edge of the limiting plate is provided with a pressing lug (21) protruding outwards, a fixing hole (211) is formed in the pressing lug (21), and the threaded pull rod (1) penetrates through the fixing hole (211).

5. The fin tube welding positioning device according to claim 1, wherein: spacing hole (20) are including seting up centre bore and a plurality of rectangular hole on limiting plate (2), the centre bore is linked together with the rectangular hole, and is a plurality of the rectangular hole evenly sets up in the circumferential edge reason of centre bore.

6. The fin tube welding positioning device according to claim 5, wherein: the two sides of the rectangular hole in the length direction are provided with a plurality of first trapezoidal grooves (212) and a plurality of second trapezoidal grooves (213), and the adjacent first trapezoidal grooves (212) and the second trapezoidal grooves (213) form a concave-convex structure.