CN202491036U

CN202491036U - Welding fixture with flange 45-degree bent tube

Info

Publication number: CN202491036U
Application number: CN2012200540148U
Authority: CN
Inventors: 孙建云; 黄毓桥
Original assignee: Guangzhou Baiyuan Pump Group Ltd
Current assignee: Guangzhou Baiyuan Pump Group Ltd
Priority date: 2012-02-17
Filing date: 2012-02-17
Publication date: 2012-10-17
Anticipated expiration: 2022-02-17

Abstract

The utility model discloses a welding fixture with a flange 45-degree bent tube. The welding fixture with the flange 45-degree bent tube comprising a base, a supporting plate, a locating rod, a tube-shaped rotating sleeve and a locking device, wherein the locating rod is vertically arranged on the base, the upper end of the locating rod is provided with a round shaft with a shaft shoulder, the tube-shaped rotating sleeve is sleeved on the round shaft with the shaft shoulder, the tube-shaped rotating sleeve is tightly locked to the round shaft with the shaft shoulder through the locking device, one side of the tube-shaped rotating sleeve horizontally extends out so that a tube-shaped clamping part of a straight tube is formed, the tube-shaped clamping part is used for clamping the flange 45-degree bent tube, the supporting plate inclines to 45 degree relative to a horizontal plane, is fixed on the base and arranged on a lower portion of the tube-shaped clamping part, the supporting plate is provided with a locating hole matched with an installing hole of a flange plate with the 45-degree bent tube, and the locating hole is provided with a locating pin. After the straight tube with the 45-degree bent tube and the flange plate are clamped, welding is then carried out by the welding fixture with the flange 45-degree bent tube so that a butt joint between a tube opening of the 45-degree bent tube and the flange plate is smooth and not prone to dislocation. Accordingly, welding is simple and welding quality is ensured.

Description

The weld jig of flanged 45 ° of bend pipes

Technical field

The utility model relates to a kind of weld jig, is specifically related to a kind of weld jig of flanged 45 ° of bend pipes.

Background technology

Existing a kind of flanged 45 ° of bend pipes are stainless steel, as inlet tube and outlet tube; As shown in Figure 1, it is welded by straight tube 3,45 ° of elbows 2, ring flanges 1 successively, when having welded straight tube 3 and 45 ° of elbow 2 backs with ring flange 1 welding; Owing to do not adopt anchor clamps; Make 45 ° of elbows 2 inaccurate with angle position, ring flange 1 welding back, the mouth of pipe of 45 ° of elbows 2 docks out-of-flatness and is prone to dislocation with ring flange, and appearance is also attractive in appearance inadequately; Cause this flanged 45 ° of bend pipe production efficiencys low, the quality after welding difficulty height, the welding also often is difficult to reach quality requirement.

The utility model content

The utility model technical problem to be solved just provides a kind of weld jig of flanged 45 ° of bend pipes, convenient welding, and improve welding efficiency and quality.

For solving the problems of the technologies described above, the technical scheme that the utility model is taked is following:

A kind of weld jig of flanged 45 ° of bend pipes; Comprise base, gripper shoe, backstay, tubular rotation cover and locking device; Said backstay vertically is located on the base; The upper end of this backstay is the circular shaft with shaft shoulder, and said tubular rotation cover is set on the circular shaft with shaft shoulder, and said locking device can be with the tubular rotation cover locking in described circular shaft; One side of said tubular rotation cover extend horizontally away one be used for the straight tube of the flanged 45 ° of bend pipes of clamping the tubulose clamping part; Said gripper shoe is fixed on the base of tubulose clamping subordinate side, and with horizontal plane angle be 45 °, have the locating hole that the installing hole with the ring flange of flanged 45 ° of bend pipes is complementary on this gripper shoe, said locating hole is furnished with alignment pin.

Be pressed on the gripper shoe through the ring flange location of alignment pin flanged 45 ° of bend pipes; Clamp the straight tube of flanged 45 ° of bend pipes by the tubulose clamping part; Regulate the tubulose turning set through rotating; Behind the welding position on the elbow alignment flange dish,, the tubular rotation cover is fixed on the backstay through locking device locking tubular rotation cover.

On the basis of the above, the utility model also can be done following improvement:

The utility model also comprises at least two pressing plates that are used for the ring flange of 45 ° of bend pipes of holddown belt flange, and each pressing plate evenly is divided into the circumferential edges of gripper shoe, so that further supported flange dish.

The top of said tubular rotation cover is higher than thin cadre's rod end; Said locking device comprises first lock-screw and packing ring; Said packing ring is located at the top of tubular rotation cover; Said first lock-screw is locked on the circular shaft with shaft shoulder after passing packing ring, so that first lock-screw locking tubular rotation cover.

Said tubulose clamping part is tubular; Second lock-screw is installed on the tube wall of this tubulose clamping part; And on the tubulose clamping part inner tubal wall of the side that second lock-screw is installed, be nested with a liner, to prevent the damage to straight tube when locking the clamping straight tube of second lock-screw.

Compared with prior art, the utlity model has following advantage:

Weld again behind straight tube through the flanged 45 ° of bend pipes of these anchor clamps clamping and the ring flange, make the mouth of pipe of 45 ° of elbows dock comparatively smooth and difficult dislocation with ring flange, specious, and also production efficiency is high, and welding is simple and can guarantee welding quality.

Description of drawings

Fig. 1 is the cutaway view of existing flanged 45 ° of bend pipes;

Fig. 2 is that the master of the weld jig of the utility model looks cutaway view;

Fig. 3 is the vertical view of Fig. 2;

Fig. 4 is that the master behind the flanged 45 ° of bend pipes of the weld jig clamping of the utility model looks cutaway view;

Fig. 5 is the vertical view of Fig. 4.

Among the figure: 1, ring flange, 2, elbow, 3, straight tube, 4, gripper shoe; 5, alignment pin, 5 ', locating hole, 6, pressing plate, 7, backstay; 701, the circular shaft that has the shaft shoulder, 8, the tubular rotation cover, 801, the tubulose clamping part, 9, liner; 10, packing ring, 11, first lock-screw, 12, second lock-screw, 13, base.

The specific embodiment

The weld jig of the flanged 45 ° of bend pipes shown in Fig. 2-3; It comprises base 13, gripper shoe 4, backstay 7, tubular rotation cover 8, locking device; Backstay 7 vertically is located on the base 13; The upper end of this backstay 7 is the circular shaft 701 with shaft shoulder, and tubular rotation cover 8 is set on the circular shaft with shaft shoulder, and locking device can overlap 8 with tubular rotation and lock onto the circular shaft 701 with shaft shoulder; One side of tubular rotation cover 8 extend horizontally away one be used for the straight tube 3 of the flanged 45 ° of bend pipes of clamping tubulose clamping part 801.

Gripper shoe 4 is fixed on the base 13 of tubulose clamping subordinate side; And with horizontal plane angle be 45 °; Angle with 1 welding of the ring flange that guarantees flanged 45 ° of bend pipes; Have on this gripper shoe 4 locating hole 5 that an installing hole with the ring flange 1 of flanged 45 ° of bend pipes is complementary ', locating hole 5 ' be furnished with alignment pin 5; Be provided with annular protrusion on the ring flange surface, this annular protrusion can cooperate the location with ring flange Pan Kou.Shown in Fig. 4-5; Can earlier ring flange Pan Kou be buckled on the annular protrusion; Again with the installing hole aligned hole 5 of ring flange 1 ', the installing hole that passes ring flange 1 with alignment pin 5 is installed on the locating hole 5 ', so as with ring flange 1 location, be pressed on the gripper shoe 4.

Also be provided with two pressing plates 6 that are used for the ring flange 1 of 45 ° of bend pipes of holddown belt flange at the edge of gripper shoe 4, so that further supported flange dish 1, each pressing plate 6 evenly is divided into the circumferential edges of gripper shoe 4, thereby through supported flange dish 1 after the bolt locking pressure plate.

The top of tubular rotation cover 8 is higher than thin cadre's 701 rod end; Locking device comprises first lock-screw 11 and packing ring 10; Packing ring 10 is located at the top of tubular rotation cover 8; First lock-screw 11 is locked on the circular shaft 701 with shaft shoulder after passing packing ring, and the coupling mechanism force through first lock-screw 11 makes packing ring be pressed on tubular rotation to overlap 8 tops, with fixing tubulose turning set 8.

Tubulose clamping part 801 is tubular; On the one side pipe wall of this tubulose clamping part 801 two second lock-screws 12 are installed; And on tubulose clamping part 801 inner tubal walls of the side that second lock-screw 12 is installed, be nested with a liner 9, to prevent the damage to straight tube 3 when locking the clamping straight tube of second lock-screw 12; Also can be on tubulose clamping part 801 inner tubal walls the lining of a nested tubular, further prevent of the compress damage of the inner tubal wall of tubulose clamping part 801 to straight tube 3.

Shown in Fig. 4-5, during welding, earlier with straight tube and elbow 2 welding; Constitute the bend pipe parts, again ring flange 1 is placed on the gripper shoe 4, ring flange 1 location is pressed on the gripper shoe 4 by alignment pin; Locking through bolt on the pressing plate 6 further makes pressing plate 6 supported flange dishes 1; Again the bend pipe parts are installed on the tubulose clamping part 801, clamp straight tubes 3 through second lock-screw 12, after rotating the welding position that tubular rotation cover 8 makes on the elbow 2 alignment flange dishes 1 by tubulose clamping part 801; Again by first lock-screw, 11 locking tubular rotation covers 8; Tubular rotation cover 8 is fixed on the backstay 7, and this moment is the junction of the weld ell mouth of pipe and ring flange 1 easily just, has guaranteed the stable welding of elbow 2 and ring flange 1.

The embodiment of the utility model is not limited thereto; Foregoing according to the utility model; Utilize the ordinary skill knowledge and the customary means of this area; Do not breaking away under the above-mentioned basic fundamental thought of the utility model prerequisite, the utility model can also be made modification, replacement or the change of other various ways, all drops within the utility model rights protection scope.

Claims

1. the weld jig of flanged 45 ° of bend pipes; It is characterized in that: comprise base, gripper shoe, backstay, tubular rotation cover and locking device; Said backstay vertically is located on the base; The upper end of this backstay is the circular shaft with shaft shoulder, and said tubular rotation cover is set on the circular shaft with shaft shoulder, and said locking device can be with the tubular rotation cover locking in described circular shaft; One side of said tubular rotation cover extend horizontally away one be used for the straight tube of the flanged 45 ° of bend pipes of clamping the tubulose clamping part; Said gripper shoe is fixed on the base of tubulose clamping subordinate side, and with horizontal plane angle be 45 °, have the locating hole that the installing hole with the ring flange of flanged 45 ° of bend pipes is complementary on this gripper shoe, said locating hole is furnished with alignment pin.

2. the weld jig of flanged 45 ° of bend pipes according to claim 1 is characterized in that: also comprise at least two pressing plates that are used for the ring flange of 45 ° of bend pipes of holddown belt flange, each pressing plate evenly is divided into the circumferential edges of gripper shoe.

3. the weld jig of flanged 45 ° of bend pipes according to claim 1; It is characterized in that: the top of said tubular rotation cover is higher than thin cadre's rod end; Said locking device comprises first lock-screw and packing ring; Said packing ring is located at the top of tubular rotation cover, and said first lock-screw is locked on the circular shaft with shaft shoulder after passing packing ring.

4. the weld jig of flanged 45 ° of bend pipes according to claim 1; It is characterized in that: said tubulose clamping part is tubular; Second lock-screw is installed on the tube wall of this tubulose clamping part, and on the tubulose clamping part inner tubal wall of the side that second lock-screw is installed, is nested with a liner.