CN218080888U - Welding positioning assembly - Google Patents

Abstract

The utility model discloses a welding positioning component, which realizes the clamping of multiple pipe diameters through a clamping piece capable of adjusting the clamping range; the motion range of the clamping piece is limited by the limiting piece, and power for moving the clamping piece is provided by the driving piece, so that the technical problems of clamping, fixing and positioning in the prior art are solved. The device comprises a clamping piece, a limiting piece and a driving piece, wherein the limiting piece is used for changing the clamping state of the clamping piece, the driving piece is used for driving the limiting piece to move, and the clamping piece comprises at least three clamping blocks which are used for contacting a piece to be welded, connecting rods symmetrically hinged to the two ends of the clamping blocks and connecting blocks for hinging the connecting rods on the same side; the locating part is including wearing to locate the guide arm at connecting block center, locate the first spacing dish of guide arm one end, locate the spacing dish of second in the guide arm. Has the advantages of strong applicability, convenient use and accurate positioning.

Description

Welding positioning assembly

Technical Field

The utility model relates to a pipeline welding technology field, concretely relates to welding position subassembly.

Background

In a welding process, in order to achieve optimal weld appearance and weld quality meeting strength requirements, a welding shielding gas device is generally used to purge inert gas-containing shielding gas on the surface of molten metal to prevent oxidation of the molten metal at the welding point.

Wherein to argon arc welding technique, current technical scheme adopts manual mode will treat that the weldment is manual to align, then carries out the tack welding (along a plurality of solder joints of spot welding around the welding seam, plays the positioning action), and the welding seam both ends are blockked up to reuse trompil baffle, continuously lets in argon gas (play the protection welding seam effect) from a tip hole, then welds with argon arc welder.

The inventors have found the following technical problems in the study of the above technical solutions:

1. the welding method has the advantages that the welding method is used for manually welding the to-be-welded parts, the welding method is greatly influenced by proficiency of workers, the phenomenon of dislocation is easy to occur, the effective strength of welding seams is low, and meanwhile certain resistance can be generated on fluid in a pipe by the aid of a dislocation part.

2. Before each welding, the two ends of the welding seam are sealed by the baffle plates, the baffle plates are connected with the air guide pipes, argon is filled to protect the back of the welding seam, and the operation is complex.

3. When circumferential welding is carried out, the parts to be welded are easy to misplace, so that circumferential welding seams are difficult to weld.

The information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.

Disclosure of Invention

In view of at least one of the above technical problems, the present disclosure provides a welding positioning assembly, which realizes clamping of multiple pipe diameters by a clamping piece capable of adjusting a clamping range; the limiting piece limits the movement range of the clamping piece, and the driving piece provides power for the movement of the clamping piece, so that the technical problems of clamping, fixing and positioning in the prior art are solved.

According to one aspect of the present disclosure, there is provided a welding positioning assembly, comprising a clamping member, a position limiting member for changing a clamping state of the clamping member, and a driving member for driving the position limiting member to move, wherein,

the clamping piece comprises at least three clamping blocks for contacting the piece to be welded, connecting rods symmetrically hinged to two ends of each clamping block, and connecting blocks for hinging the connecting rods on the same side;

the locating part includes wear to locate the guide arm at connecting block center, locate the first spacing dish of guide arm one end, locate the spacing dish of second in the guide arm.

In some embodiments of the disclosure, the clamping block is provided with a notch in the center.

In some embodiments of the present disclosure, the clamping block is a copper alloy material.

In some embodiments of the disclosure, the position-limiting member further includes a cushion block for adjusting a distance between the two position-limiting discs and sleeved on the guide rod.

In some embodiments of the disclosure, the diameter of the first limiting disc is smaller than the diameter of the pipe to be welded, and a high-temperature-resistant sponge for sealing a gap between the first limiting disc and the part to be welded is arranged.

In some embodiments of the disclosure, the limiting member further includes a seat plate with a cylindrical member at the center, and an air pipe penetrating through the cylindrical member, wherein the cylindrical member is connected with the second limiting disc or the bearing between the seat plates; the second limiting disc corresponds to the flange plate to be welded and is used for fixing the flange plate to be welded; the first limiting disc is in bearing connection with the guide rods.

In some embodiments of the disclosure, the diameter of the second limiting disc is smaller than the diameter of the pipe to be welded, and the second limiting disc is provided with a high temperature resistant sponge for sealing a gap between the second limiting disc and the pipe to be welded and a gas pipe penetrating the second limiting disc.

In some embodiments of the present disclosure, the driving member is fixedly disposed on the seat plate or the second limiting plate.

In some embodiments of the present disclosure, the driving member is a cylinder or a motor.

One or more technical solutions provided in the embodiments of the present application have at least any one of the following technical effects or advantages:

1. because the clamping piece adopts the connecting rod structure, the problem of applicability of the clamping piece is effectively solved, and clamping of pipe diameters within a certain range is further realized.

2. Because the locating part with treat that the clearance between the welding is equipped with high temperature resistant sponge, effectively solved treat the discharge problem of welding the inside air of welding before the pipe fitting lets in inert gas, guarantee the welding seam quality.

3. Because the first limiting disc and the guide rod and the second limiting disc and the seat plate are connected through the bearings respectively, the problem of circumferential welding is effectively solved, and the convenient effect of rotating the second limiting disc to complete circumferential welding is realized.

Drawings

Fig. 1 is a schematic structural diagram of a clamping member according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a position limiting element in an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a position-limiting element according to another embodiment of the present disclosure.

Fig. 4 is a schematic structural diagram of a cushion block according to an embodiment of the present application.

FIG. 5 is a schematic structural diagram of a limiting member and an air delivery pipe according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a driving member according to another embodiment of the present application.

Fig. 7 is a schematic view of the assembly of the present application.

In the above figures, 1 is a clamping block, 2 is a connecting rod, 3 is a connecting block, 4 is a first limiting disc, 5 is a second limiting disc, 6 is a guide rod, 7 is a seat plate, 8 is a bearing, 9 is a U-shaped connecting piece, 10 is a gas pipe, 11 is a sleeve pipe, and 12 is a cushion block.

Detailed Description

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present application. References in this application to "first," "second," etc. are used to distinguish between the objects described and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application includes both direct and indirect connections (couplings), unless otherwise specified.

The components, structures, mechanisms and other devices in the following examples are all conventional commercially available products unless otherwise specified.

In order to better understand the technical scheme of the application, the technical scheme is described in detail in the following with reference to the accompanying drawings and specific embodiments.

The embodiment discloses a welding positioning assembly, which comprises a clamping piece, a limiting piece and a driving piece, wherein the limiting piece is used for changing the clamping state of the clamping piece, and the driving piece is used for driving the limiting piece to move.

In this embodiment, referring to fig. 1, the clamping member includes four clamping blocks, two connecting blocks, and eight connecting rods correspondingly connecting the clamping blocks and the connecting blocks. The center of each connecting block is provided with a through hole for penetrating the guide rod and can slide along the guide rod, and four connecting rods are hinged around each connecting block so as to drive other structural components to move along with the connecting blocks when the connecting blocks move. Each clamping block is also hinged with the corresponding connecting rod, a connecting rod mechanism is formed between each clamping block and the corresponding connecting block, so that when the connecting block moves along the guide rod, the clamping blocks can axially extend and retract perpendicular to the guide rod through the hinging action among the connecting rods, the clamping blocks and the connecting blocks, and the clamping of the workpiece to be welded is completed. In other embodiments, at least three clamping blocks are provided to achieve a secure clamping action.

In the embodiment, the center of the clamping block is provided with a V-shaped groove, and when the clamping block is used, a welding seam is positioned in the range of the V-shaped groove so as to prevent the clamping piece from being damaged and the welding piece and the clamping block from being welded together when the penetration welding is caused by welding misoperation; on the other hand, when inert gas is introduced to protect the quality of the welding seam, if argon is needed to protect the welding seam in the embodiment, the notch space of the clamping block can ensure that the welding seam is filled with argon during welding. In other embodiments, the center of the clamping block is provided with a notch with other shapes.

In this embodiment, the clamping block is made of a copper alloy material different from that of the steel piece to be welded, and due to the difference of metal characteristics between the copper alloy and the steel piece, the clamping block made of the copper alloy is not easy to weld with the steel piece, so that adverse consequences caused by penetration welding are further avoided.

Referring to fig. 2, the limiting member includes a guide rod penetrating the center of the connecting block, a first limiting disc disposed at one end of the guide rod, a second limiting disc disposed in the guide rod, and a seat plate connected to a bearing of the second limiting disc.

The two limiting discs are used for extruding the clamping piece under the driving of the guide rod, and then the clamping block is enabled to axially extend out of the guide rod through the connecting rod structure to achieve clamping. Wherein first spacing dish is the cylindric high temperature resistant sponge of centre gripping a slice in the middle of two circular aluminum plate, and two circular aluminum plate diameters are less than and treat the welded pipe fitting diameter, make spacing dish can be in the pipe fitting on the one hand, realize spacing squeezing action, and on the other hand reserves certain annular space, when guaranteeing to let in argon gas and carry out the welding seam protection, the interior air of pipe fitting can in time be discharged. In addition, the diameter of the high-temperature-resistant sponge is slightly larger than that of the pipe to be welded, and the sponge has certain air permeability, so that when argon gas is introduced at the beginning, air in the pipe can be smoothly discharged, and in the welding process, the loss of the introduced argon gas is reduced, wherein the high-temperature-resistant sponge can resist the high temperature generated in the welding process, and the sponge is prevented from melting due to the heat conduction of the pipe.

The first limiting disc is connected with the guide rod through the bearing, so that the clamping piece and the guide rod can rotate relatively when the clamping piece clamps the pipe fitting, and the pipe fitting can be firmly clamped and can be rotatably welded while the pipe fitting is clamped.

In this embodiment, the to-be-welded component is a flange and a corresponding pipe, the second limiting plate is a flange fixing plate corresponding to the to-be-welded flange, referring to fig. 2, the diameter of the second limiting plate is not smaller than that of the to-be-welded flange, and a through hole for fixing the to-be-welded flange by a bolt is formed in a corresponding position, so that the flange is stably fixed. In order to enhance the universality of the application, the through hole of the second limiting disc is a long strip-shaped through hole so as to be convenient for fixing flange plates of different types.

In this embodiment, the locating part still includes the bedplate, and this bedplate mainly plays the effect that makes things convenient for spin welding, is equipped with the through-hole around the bedplate, and on accessible bolt fastening was in the steady solid body, the emergence was rocked when preventing to use. In order to realize the rotary welding, the second limiting disc is connected with the seat plate through a bearing, in the embodiment, a cylindrical part is welded in the center of the seat plate, the bottom surface of the cylindrical part is the seat plate, the top surface of the cylindrical part is not closed, a bearing inner ring is fixedly connected with the upper end part of the cylindrical part, and a bearing outer ring is fixedly connected with the second limiting disc, so that the relative rotation between the bearing inner ring and the bearing outer ring is realized; in other embodiments, the seat plate is provided with a through hole corresponding to the column member at the center, and the top surface of the column member is closed.

The guide arm wears to locate the center of bedplate and the spacing dish of second, and with the coincidence of the two central axis, and wears to be equipped with an L type air duct by the guide arm, the closed surface of cylindricality piece is worn to locate by the one end of this air duct, and the square closed surface is convenient for carry protection welding argon gas in to the pipe fitting, reduces argon gas and runs off, and on the other hand, this closed surface does not rotate along with the rotation of flange positioning disk, and then has avoided the air inlet pipeline winding when rotating the welding.

In other embodiments, the to-be-welded member is two pipe members, and in this case, referring to fig. 3, the second limiting disc is identical to the first limiting disc, and a piece of cylindrical high temperature resistant sponge is clamped between the two circular aluminum plates. In addition, the second limiting disc is provided with a through hole corresponding to the gas conveying pipe and used for conveying inert gas at the welding part. During the use, locate two pipe fitting seam departments with the holder earlier, manual preliminary concatenation, the driving piece that restarts, the drive locating part removes and then drives the grip block and stretches out, realizes the centre gripping location, avoids taking place the wrong joint between two pipe fittings, then starts the air pump and carries inert gas a period, begins the welding after waiting that the welding position is full of inert gas.

In this embodiment, the position-limiting member further includes a conical pad for adjusting the distance between the two position-limiting discs and sleeved on the guide rod, as shown in fig. 4, the conical pad is used for adjusting the height of the connecting block at the lower portion of the clamping member, so as to adapt to the heights of different flange plates, and the notches of the clamping blocks can correspond to the welding seams. In other embodiments, a cylindrical or square cushion block is adopted, and a cylindrical through hole corresponding to the guide rod is arranged in the middle of the cushion block. During assembly, the clamping piece, the cushion block and the second limiting disc sequentially penetrate through the guide rod.

The driving piece pulls the guide rod and is a power input source. In order to avoid the interference between the driving part and the air duct in the spatial position relationship, the driving part is fixedly arranged on the seat plate through a U-shaped connecting part. Referring to fig. 5, the fixing plates for fixing the U-shaped connecting member are respectively disposed at the ends of the two arms of the U-shaped connecting member, and through holes are disposed at corresponding positions of the U-shaped connecting member and the seat plate, so that the U-shaped connecting member can be tightly fixed on the seat plate by bolts. In this embodiment, the fastener is a cylinder, this cylinder is fixed on locating U type connecting piece through the screw on the tip panel, and cylinder pole and guide arm are in on the same axis, the two tip all is equipped with the external screw thread, during the assembly, adopt the nut that corresponds the specification or be equipped with the internal screw thread sleeve pipe and accomplish the connection of the two, from this when using, cylinder work back drives the guide arm and slowly moves down, and then two spacing inter-plates distance diminishes gradually on the guide arm, and then extrude the holder, wherein, the connecting block of holder lower extreme uses the cushion as the supporter, it is motionless, go up the connecting block and follow the guide arm downstream under first spacing inter-plate extrusion, and then drive connecting rod extrusion holder outwards expand, until with treat that the welding inner wall contacts.

In other embodiments, the driving member is a servo motor, referring to fig. 6, a sleeve with an internal thread is connected to the motor shaft through a spline, the sleeve can rotate along with the rotation of the motor shaft, and an external thread corresponding to the internal thread of the sleeve is arranged at the corresponding end of the guide rod. In addition, the motor is equipped with current detection device, real-time supervision motor operating current, during the use, the starter motor, motor shaft drives the sleeve pipe rotatory, screw-thread fit through between sleeve pipe and guide arm, the guide arm is in by continuous entering sleeve pipe, and then realize the removal of guide arm and the centre gripping that stretches out of grip block, in this process, the current detection device of motor constantly detects motor operating current, in case detect the sudden grow of electric current, then explain that the grip block has stretched out and target in place, accomplish the centre gripping, cut off the motor power at once this moment, prevent that the motor from continuing to rotate and causing location frock to damage or the motor burns out.

Referring to fig. 7, the assembly of the welding positioning assembly is firstly provided with a second limit disc and a seat plate which are connected by a bearing, then a guide rod which is provided with a clamping piece and a cushion block with proper height in a penetrating way is inserted into a through hole corresponding to the second limit disc and the seat plate, and then a driving piece and the guide rod are connected, and a gas pipe extending out of the seat plate is connected to a gas source. After the assembly is completed, can begin to weld, at first will treat that the welding ring flange corresponds the setting on the spacing dish of second, ensure that the welding seam is located the clamping block notch central point and put the department, the cover is again established and is treated the welding pipe fitting, make the two treat that the face contacts, start the driving piece afterwards, the guide arm begins the downstream, it stretches out the realization centre gripping to add the holding block, next start the air supply pump, to treating to weld in the welding piece and carry inert gas through the gas-supply pipe, treat to treat that the welding piece internal air is after the excessive back that looses via first spacing dish sponge, begin to weld, rotatable ring flange realizes the rotation welding, and has avoided the gas-supply pipe winding through self structure.

Although preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present application and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A welding positioning component comprises a clamping piece, a limiting piece used for changing the clamping state of the clamping piece and a driving piece used for driving the limiting piece to move, and is characterized in that,

the clamping piece comprises at least three clamping blocks for contacting the piece to be welded, connecting rods symmetrically hinged to two ends of each clamping block, and connecting blocks for hinging the connecting rods on the same side;

the locating part is including wearing to locate the guide arm at connecting block center, locate the first spacing dish of guide arm one end, locate the spacing dish of second in the guide arm.

2. The weld positioning assembly of claim 1, wherein the clamp block is centrally notched.

3. The weld positioning assembly of claim 1, wherein the clamping block is of a copper alloy material.

4. The welding positioning assembly of claim 1, wherein the position limiter further comprises a spacer for adjusting a distance between the two position limiting discs and sleeved on the guide rod.

5. The welding positioning assembly of claim 1, wherein the diameter of the first limiting disc is smaller than the diameter of the pipe to be welded, and a high-temperature-resistant sponge is arranged for sealing a gap between the first limiting disc and the pipe to be welded.

6. The welding positioning assembly according to claim 1, wherein the limiting member further comprises a seat plate with a cylindrical member at the center, and an air pipe penetrating through the cylindrical member, and the cylindrical member is connected with the second limiting disc through a bearing; the second limiting disc corresponds to the flange plate to be welded and is used for fixing the flange plate to be welded; the first limiting disc is in bearing connection with the guide rods.

7. The weld positioning assembly according to claim 6, wherein the driving member is fixedly disposed on the seat plate.

8. The welding positioning assembly as claimed in claim 1, wherein the diameter of the second limiting disc is smaller than the diameter of the pipe to be welded, and a high temperature resistant sponge for sealing the gap between the second limiting disc and the pipe to be welded and an air pipe penetrating the second limiting disc are provided.

9. The weld positioning assembly of claim 8, wherein the driving member is fixedly disposed on the second retainer disk.

10. The weld positioning assembly of claim 1, wherein the drive member is a cylinder or a motor.

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