CN217193565U

CN217193565U - Valve welding tool

Info

Publication number: CN217193565U
Application number: CN202220366684.7U
Authority: CN
Inventors: 刘立峰
Original assignee: Hebei Runcaotang Machinery Co ltd
Current assignee: Hebei Runcaotang Machinery Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-08-16
Anticipated expiration: 2032-02-23

Abstract

The utility model discloses a valve welding frock belongs to welding process and equips technical field, including the supporting bench that is used for the bearing valve body and be used for the fixed clamping mechanism who treats welding flange dish, the supporting bench is the open frame rack structure in top, be equipped with on two relative lateral walls of supporting bench be used for with valve body both sides passageway outer wall assorted constant head tank, clamping mechanism sets up on the supporting bench. The utility model utilizes the positioning groove on the supporting table to support and position the outer walls of the channels at the two sides of the valve body, and clamps and fixes the flange plate to be welded at the top of the valve body by the clamping mechanism, thereby ensuring the stability of the relative position of the flange plate and the valve body in the welding process, and avoiding the displacement of the flange plate caused by accidental collision in the welding process; the supporting table is of a frame type structure, is simple in structure and convenient to process, and can meet the requirement of lightweight design. Utilize the utility model discloses can pinpoint valve body and ring flange to ensure the welding quality of three-way valve middle part ring flange.

Description

Valve welding tool

Technical Field

The utility model belongs to the technical field of welding process equipment, especially, relate to a valve welding frock.

Background

As is well known, a three-way valve has three inlets and outlets, and a small three-way valve is connected to a pipeline by plugging, while a large three-way valve is connected to a pipeline by a flange. During the processing of the large and medium three-way valve, the flange plates are usually fixed at the inlet and outlet of the valve body by welding, generally, the flange plates with symmetrical sides are welded in advance, and then the flange plate in the middle is welded. At present, when the flange plate in the middle of the valve body is welded, the problem of difficult positioning of the valve body exists due to the irregularity of the valve body, the flange plate is easy to deviate under the action of external force, and the welding quality is not easy to ensure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, provide a valve welding frock, the convenience is fixed a position valve body and ring flange, effectively improves the welding quality of three-way valve middle part ring flange.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is:

the utility model provides a valve welding frock, is including the brace table that is used for the bearing valve body and be used for the fixed clamping mechanism who treats welding flange dish, the brace table is the open frame rack structure in top, be equipped with on two relative lateral walls of brace table be used for with valve body both sides passageway outer wall assorted constant head tank, clamping mechanism sets up on the brace table.

Preferably, the clamping mechanism comprises a stand column, an upper pressing plate and a lower pressing plate, the lower end of the stand column is connected with the base of the support table, the upper pressing plate is parallel to the lower pressing plate, the upper pressing plate and the lower pressing plate are both U-shaped, the middle parts of the upper pressing plate and the lower pressing plate are sleeved on the stand column, and the free ends of the upper pressing plate and the lower pressing plate are both contacted with the upper surface and the lower surface of the flange plate to be welded; the middle part of the upper pressing plate is positioned on the stand column through a locking nut, and the free end of the lower pressing plate is provided with a fastening bolt for fixing the flange plate to be welded between the upper pressing plate and the lower pressing plate.

Preferably, the free ends of the upper pressing plate and the lower pressing plate are respectively provided with a cushion block, the cushion blocks are conical, and the large ends of the cushion blocks are in contact with the upper surface and the lower surface of the flange plate to be welded.

Preferably, the fastening bolt penetrates through the lower pressing plate and is connected with a cushion block at the tail end of the lower pressing plate.

Preferably, arc-shaped hoops are arranged above the two positioning grooves of the supporting table and are matched with the outer walls of the channels on the two sides of the valve body, one end of each hoop is rotatably connected with the top of one side of each positioning groove, and the movable end of each hoop is movably connected with the top of the other side of each positioning groove through a clamp.

Preferably, the anchor clamps include pivot, the horizontal pole that the level set up and the ejector pin of perpendicular setting, the pivot is with the lateral wall top normal running fit of brace table, the top of pivot be equipped with horizontal pole assorted sleeve pipe, the terminal threaded connection of ejector pin and horizontal pole.

Preferably, the supporting table is arranged on the turntable, the turntable is horizontally arranged on the workbench, a positioning mandrel for positioning the supporting table is arranged on the turntable, a rotating shaft in running fit with the workbench is arranged at the bottom of the turntable, and the positioning mandrel coincides with the central line of the rotating shaft.

Preferably, the lower end of the rotating shaft is connected with a rotating mechanism, and the rotating mechanism is arranged in the workbench and used for driving the turntable and the support table to rotate.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: compared with the prior art, the utility model utilizes the positioning groove on the supporting table to support and position the outer walls of the channels at the two sides of the valve, and clamps and fixes the flange plate to be welded at the top of the valve by the clamping mechanism, thereby ensuring the stability of the relative position of the flange plate and the valve body in the welding process and avoiding the displacement of the flange plate caused by accidental collision in the welding process; the supporting table is of a frame type structure, is simple in structure and convenient to process, and can meet the requirement of lightweight design. Utilize the utility model discloses can pinpoint valve body and ring flange to ensure the welding quality of three-way valve middle part ring flange.

Drawings

Fig. 1 is a schematic structural diagram of a valve welding tool provided in an embodiment of the present invention;

FIG. 2 is a top view of the support table and clamping mechanism of FIG. 1;

fig. 3 is a schematic structural diagram of another embodiment of the present invention;

FIG. 4 is a right side view of the support table and clamping mechanism of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

in the figure: 00-a valve body, 01-a flange plate to be welded; 1-supporting table, 2-positioning groove, 3-upright post, 4-upper pressing plate, 5-lower pressing plate, 6-locking nut, 7-fastening bolt, 8-cushion block, 9-anchor ear, 10-fixture body, 101-rotating shaft, 102-cross bar, 103-ejector rod, 104-sleeve; 11-handle, 12-top block, 13-turntable, 14-workbench and 15-positioning mandrel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the technical solutions in the embodiments of the present invention are described below clearly and completely with reference to the accompanying drawings and specific embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the utility model provides a pair of valve welding frock, including a supporting bench 1 that is used for bearing valve body 00 and be used for the fixed clamping mechanism who treats welding flange plate 01, a supporting bench 1 is the open frame rack structure in top, be equipped with on two relative lateral walls of a supporting bench 1 and be used for with valve body 00 both sides passageway outer wall assorted constant head tank 2, clamping mechanism sets up on a supporting bench 1. According to the scheme, the positioning grooves on the supporting table are used for supporting and positioning the channels on the two sides of the valve, and the flange plates at the two ends can be arranged on the outer sides of the positioning grooves during installation; the flange plate 01 to be welded at the top is clamped and fixed through the clamping mechanism, the relative position of the flange plate and the valve body is ensured to be stable in the welding process, and the welding quality of the three-way valve is ensured.

In a specific embodiment of the present invention, as shown in fig. 1 and 2, the clamping mechanism includes a stand column 3, an upper pressing plate 4 and a lower pressing plate 5, the lower end of the stand column 3 is connected to the base of the supporting table 1, the upper pressing plate 4 is parallel to the lower pressing plate 5, the upper pressing plate 4 and the lower pressing plate 5 are both U-shaped, the middle portions of the upper pressing plate 4 and the lower pressing plate 5 are both sleeved on the stand column 3, and the free ends of the upper pressing plate 4 and the lower pressing plate 5 are both in contact with the upper surface and the lower surface of the flange 01 to be welded; the middle part of the upper pressure plate 4 is positioned on the upright post 3 through a locking nut 6, and the free end of the lower pressure plate 5 is provided with a fastening bolt 7 for fixing the flange plate 01 to be welded between the upper pressure plate 4 and the lower pressure plate 5. Wherein, lock

nut

6 and 3 screw-thread fit of stand, after treating welding flange plate 01 level alignment, make top board 4 with treat that welding flange plate 01 is parallel and utilize lock nut 6 to carry on spacingly to its height, the fastening bolt 7 of screwing again holds bottom plate 5, utilizes U-shaped top board 4 and bottom plate 5 can be with treating welding flange plate 01 firmly fixed, avoids taking place the aversion among the welding process.

Further optimizing the technical scheme, as shown in fig. 1, the free ends of the upper pressing plate 4 and the lower pressing plate 5 are respectively provided with a cushion block 8, the cushion blocks 8 are conical, and the large ends of the cushion blocks 8 are in contact with the upper surface and the lower surface of the flange plate 01 to be welded. Wherein, the fastening bolt 7 penetrates through the lower pressure plate 5 and is connected with a cushion block 8 at the tail end thereof. The conical cushion block is adopted, so that the contact area between the conical cushion block and the flange plate to be welded can be increased, and the flange plate to be welded is ensured to be fixed firmly.

In another embodiment of the present invention, as shown in fig. 3 and 4, two positioning grooves 2 of the supporting table 1 are provided with circular arc-shaped hoops 9 for matching with the outer wall of the channel of the two sides of the valve body 00, one end of the hoops 9 is connected with one side of the positioning grooves 2 in a rotating manner, and the movable end of the hoops 9 passes through the clamp 10 and the other side of the positioning grooves 2 in a movable manner. Adopt the staple bolt to fix the valve body, avoid the valve body to receive unexpected the colliding with and take place to shift in welding process, can further guarantee the welding quality of three-way valve.

During specific manufacturing, as shown in fig. 4 and 5, the fixture 10 includes a rotating shaft 101, a horizontally arranged cross bar 102 and a vertically arranged push rod 103, the rotating shaft 101 is rotatably matched with the top of the side wall of the support table 1, a sleeve 104 matched with the cross bar 102 is arranged at the top of the rotating shaft 101, and the push rod 103 is in threaded connection with the tail end of the cross bar 102. Wherein, the upper end of ejector pin 103 is equipped with handle 11, the lower extreme is equipped with toper kicking block 12, and the major diameter end of kicking block 12 is down, can increase the area of contact of kicking block 12 and the protruding eaves of staple bolt 9, ensures to firmly push up the staple bolt and press on the lateral wall of brace table. When the valve body is placed, the cross rod can be rotated to rotate the ejector rod to one side, and the hoop is opened to facilitate the valve body to be in place; after the valve body is placed, placing the top to-be-welded flange plate, and adjusting the valve body to keep the to-be-welded flange plate horizontal; and then, fixing the flange plates to be welded by utilizing the upper pressing plate and the lower pressing plate, buckling the anchor ears on the channels on the two sides of the valve body, and rotating the cross rod to enable the lower ends of the ejector rods to tightly press the convex eaves of the anchor ears on the side walls of the supporting table. The clamp body with the structure is convenient and quick to operate.

In view of the fact that the flange plate to be welded needs to be continuously welded along the inner hole of the flange plate in the welding process, the support table 1 can be placed on a rotary table 13, the rotary table 13 is horizontally arranged on a workbench 14, a positioning mandrel 15 used for positioning the support table 1 is arranged on the rotary table 13, a rotating shaft (not shown in the figure) in rotating fit with the workbench 14 is arranged at the bottom of the rotary table 13, and the positioning mandrel is superposed with the central line of the rotating shaft; the lower end of the rotating shaft is connected to a rotating mechanism (not shown) which is disposed inside the worktable 14 and is used for driving the turntable 13 and the support table 1 to rotate. By adopting the structure, the rotating speed of the rotating shaft can be adjusted by controlling the rotating mechanism, so that the valve body and the flange plate to be welded rotate, the continuous welding of the flange plate can be realized by a worker only by controlling the position of the welding gun, and the welding speed and the welding quality are improved.

In addition, in order to conveniently and quickly align the valve body and the flange plate to be welded, the levelness of the flange plate to be welded at the top can be detected through the level ruler. During specific manufacturing, the level bar can be arranged between the two free ends of the upper pressure plate. The height of the upper pressure plate is fixed after the valve body is aligned, and then the flange plate to be welded is clamped tightly by the lower pressure plate.

To sum up, the utility model has the advantages of compact structure and high positioning precision of the valve body and the flange plate to be welded, the positioning grooves on the supporting platform are utilized to position the channels at the two sides of the valve body, the channels at the two sides are ensured to be on the same horizontal line, the levelness of the opening at the top of the valve body and the flange plate to be welded is adjusted by the leveling rod, and the upper pressing plate and the lower pressing plate are utilized to clamp and fix the adjusted flange plate to be welded; and finally, the rotating mechanism is started to realize the automatic rotation of the valve body along with the supporting table, so that the continuous welding of the flange plate can be realized, and the working efficiency and the welding quality of products are improved.

The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a valve welding frock which characterized in that: including the brace table that is used for the bearing valve body and be used for the fixed clamping mechanism who treats welding flange dish, the brace table is the open frame rack structure in top, be equipped with on two relative lateral walls of brace table be used for with valve body both sides passageway outer wall assorted constant head tank, clamping mechanism sets up on the brace table.

2. The valve welding tool of claim 1, wherein: the clamping mechanism comprises a stand column, an upper pressing plate and a lower pressing plate, the lower end of the stand column is connected with a base of the supporting table, the upper pressing plate is parallel to the lower pressing plate, the upper pressing plate and the lower pressing plate are U-shaped, the middle parts of the upper pressing plate and the lower pressing plate are sleeved on the stand column, and the free ends of the upper pressing plate and the lower pressing plate are in contact with the upper surface and the lower surface of the flange plate to be welded; the middle part of the upper pressing plate is positioned on the stand column through a locking nut, and the free end of the lower pressing plate is provided with a fastening bolt for fixing the flange plate to be welded between the upper pressing plate and the lower pressing plate.

3. The valve welding tool of claim 2, wherein: the free ends of the upper pressing plate and the lower pressing plate are respectively provided with a cushion block, the cushion blocks are conical, and the large ends of the cushion blocks are in contact with the upper surface and the lower surface of the flange plate to be welded.

4. The valve welding tool of claim 3, wherein: the fastening bolt penetrates through the lower pressing plate and is connected with the cushion block at the tail end of the lower pressing plate.

5. The valve welding tool of claim 1, wherein: arc-shaped hoops are arranged above the two positioning grooves of the supporting table and are matched with the outer walls of the channels on the two sides of the valve body, one end of each hoop is rotatably connected with the top of one side of each positioning groove, and the movable end of each hoop is movably connected with the top of the other side of each positioning groove through a clamp.

6. The valve welding tool of claim 5, wherein: the fixture comprises a rotating shaft, a horizontally arranged cross rod and a vertically arranged ejector rod, the rotating shaft is in running fit with the top of the side wall of the supporting table, a sleeve matched with the cross rod is arranged at the top of the rotating shaft, and the ejector rod is in threaded connection with the tail end of the cross rod.

7. The valve welding tool of any one of claims 1-6, wherein: the supporting table is arranged on the turntable, the turntable is horizontally arranged on the workbench, a positioning mandrel for positioning the supporting table is arranged on the turntable, a rotating shaft in running fit with the workbench is arranged at the bottom of the turntable, and the positioning mandrel is superposed with the central line of the rotating shaft.

8. The valve welding tool of claim 7, wherein: the lower end of the rotating shaft is connected with a rotating mechanism, and the rotating mechanism is arranged in the workbench and used for driving the turntable and the supporting table to rotate.