阅读说明：本技术 一种自动开合式感应钎焊线圈 (Automatic open-close type induction brazing coil ) 是由 邹俊 熊刘涛 于 2019-08-07 设计创作，主要内容包括：本发明提供一种自动开合式感应钎焊线圈,包括同轴变压器、感应线圈固定部、感应线圈活动部以及感应器底板；感应线圈固定部和感应线圈活动部的末端分别设有弧形夹紧口；同轴变压器和感应线圈固定部分别固定设置于感应器底板上,并且感应线圈固定部一端与同轴变压器连接；感应线圈活动部通过传动组件可转动设置于感应线圈固定部的下端,并与感应线圈固定部形成环状钎焊口；本发明提供的方案,能够实现高强度的多次自动开合,避免采用人工手动开合,降低工人劳动强度、节约成本,使得感应钎焊线圈焊接效果更加均匀,实现管路整圈焊接、焊接质量更加可靠,并且可实现快速更换部件。(The invention provides an automatic opening and closing type induction brazing coil, which comprises a coaxial transformer, an induction coil fixing part, an induction coil moving part and an inductor bottom plate, wherein the induction coil fixing part is arranged on the coaxial transformer; the tail ends of the induction coil fixing part and the induction coil movable part are respectively provided with an arc-shaped clamping opening; the coaxial transformer and the induction coil fixing part are respectively and fixedly arranged on the inductor bottom plate, and one end of the induction coil fixing part is connected with the coaxial transformer; the induction coil movable part is rotatably arranged at the lower end of the induction coil fixing part through a transmission assembly and forms an annular brazing opening with the induction coil fixing part; according to the scheme provided by the invention, high-intensity repeated automatic opening and closing can be realized, manual opening and closing are avoided, the labor intensity of workers is reduced, the cost is saved, the welding effect of the induction brazing coil is more uniform, the whole-circle welding of a pipeline is realized, the welding quality is more reliable, and the parts can be quickly replaced.)

1. An automatic open-close type induction brazing coil is characterized by comprising a coaxial transformer, an induction coil fixing part, an induction coil moving part and an inductor bottom plate; the tail ends of the induction coil fixing part and the induction coil movable part are respectively provided with an arc-shaped clamping opening; the coaxial transformer and the induction coil fixing part are respectively and fixedly arranged on the inductor bottom plate, and one end of the induction coil fixing part is connected with the coaxial transformer; the induction coil movable part is rotatably arranged at the lower end of the induction coil fixing part through a transmission assembly and forms an annular brazing opening together with the induction coil fixing part.

2. The automatically opening and closing induction brazing coil according to claim 1, further comprising a cylinder fixedly disposed on the inductor base plate by a cylinder support; the cylinder is in transmission connection with the transmission assembly so as to drive the movable part of the induction coil to rotate.

3. The automatically opening and closing induction brazing coil according to claim 2 wherein the transmission assembly comprises a rotary slip joint; one end of the rotary slipknot is connected with the cylinder through a piston shaft, and the other end of the rotary slipknot drives the movable part of the induction coil to rotate through the adapter.

4. The automatically opening and closing induction brazing coil according to claim 3, wherein the transmission assembly further comprises a cylinder shaft guide; the cylinder shaft guide rail is fixedly arranged on the inductor base plate, and the piston shaft penetrates through the cylinder shaft guide rail and reciprocates along the cylinder shaft guide rail.

5. The automatically opening and closing induction brazing coil according to claim 1, wherein the induction coil movable portion is provided to a lower end of the induction coil fixing portion through a rotation shaft; the rotating shaft is provided with a conductive copper plate; the induction coil movable part is in contact with the induction coil fixed part through the conductive copper plate in the rotating process to realize current conduction, so that the workpiece on the annular brazing opening is heated.

6. The auto-opening induction brazing coil according to claim 1, wherein the induction coil fixing part is fixedly provided on the inductor base plate by an inductor support; an inductor limiting part is arranged on the side surface of the inductor supporting part; the inductor limiting part extends to one side of the movable part of the induction coil to limit the lateral direction of the movable part of the induction coil.

7. The automatically opening and closing induction brazing coil according to any one of claims 1 to 6, wherein contacts are arranged on the arc-shaped clamping openings, and the contacts are made of silver tin oxide alloy.

8. The automatically opening and closing induction brazing coil according to any one of claims 1 to 6, wherein stainless steel reinforcing plates are welded to the induction coil fixing portion and the induction coil moving portion, respectively; and/or insulating epoxy plates are arranged outside the induction coil fixing part and the induction coil moving part.

9. The automatically opening and closing induction brazing coil according to any one of claims 1 to 6, wherein a water tank is provided on the induction coil fixing portion; a water connecting port is formed in the tail end of the arc-shaped clamping port of the induction coil fixing part and is communicated with the water tank; the fixed part of induction coil is equipped with total return water mouth, total return water mouth with the basin intercommunication.

10. The automatically opening and closing induction brazing coil according to claim 9, wherein a water tank is provided on the movable portion of the induction brazing coil; a water outlet connecting port is formed at the tail end of the arc-shaped clamping port of the movable part of the induction coil and is communicated with the water tank; the rotating part of the induction coil is provided with an induction coil moving part water inlet which is communicated with the water tank.

Technical Field

The invention belongs to the technical field of induction brazing devices, and particularly relates to an automatic opening and closing type induction brazing coil.

Background

At present, most of the welding of complex pipelines uses flame welding, even if induction brazing is used, the U-shaped inductor is also used, and the welding uniformity cannot be ensured when the pipe diameter is larger; at present, the induction brazing of a large batch of assembly lines adopts coil fixation, workpieces move to realize welding, and the requirement on the clamping of the workpieces is extremely high; the existing welding scheme is that the welding is started after manual opening and closing, namely manual butt joint of the inductor is locked, and the workpiece is disassembled and taken down after the welding is finished and is locked and welded again, so that the welding rhythm is greatly influenced, and the cost is increased; the existing induction brazing coil also has a semicircular automatic opening and closing induction coil, namely, two semicircular cylinders are opened and closed after being contacted, but the contacts of the scheme are increased, unstable factors are increased, the induction brazing coil cannot be applied to a narrow welding range in space, and the welding effect cannot be guaranteed.

Based on the technical problems in the induction brazing, no relevant solution exists; there is therefore a pressing need to find effective solutions to the above problems.

Disclosure of Invention

The invention aims to provide an automatic open-close type induction brazing coil aiming at overcoming the defects in the prior art and aims to solve the problems of low welding efficiency and uneven welding of the existing induction brazing.

The invention provides an automatic opening and closing type induction brazing coil, which comprises a coaxial transformer, an induction coil fixing part, an induction coil moving part and an inductor bottom plate, wherein the induction coil fixing part is arranged on the coaxial transformer; the tail ends of the induction coil fixing part and the induction coil movable part are respectively provided with an arc-shaped clamping opening; the coaxial transformer and the induction coil fixing part are respectively and fixedly arranged on the inductor bottom plate, and one end of the induction coil fixing part is connected with the coaxial transformer; the induction coil movable part is rotatably arranged at the lower end of the induction coil fixing part through the transmission assembly and forms an annular brazing opening with the induction coil fixing part.

The sensor further comprises an air cylinder, wherein the air cylinder is fixedly arranged on the inductor bottom plate through an air cylinder supporting piece; the cylinder is connected with the transmission component in a transmission way so as to drive the movable part of the induction coil to rotate.

Further, the transmission assembly includes a rotary slip knot; one end of the rotary slipknot is connected with the cylinder through a piston shaft, and the other end of the rotary slipknot drives the movable part of the induction coil to rotate through the adapter.

Further, the transmission assembly also comprises a cylinder shaft guide rail; the cylinder shaft guide rail is fixedly arranged on the bottom plate of the inductor, and the piston shaft passes through the cylinder shaft guide rail and reciprocates along the cylinder shaft guide rail.

Furthermore, the induction coil movable part is arranged at the lower end of the induction coil fixed part through the rotating shaft; a conductive copper plate is arranged on the rotating shaft; the induction coil movable part is contacted with the induction coil fixed part through the conductive copper plate in the rotating process to realize current conduction, so that the workpiece on the annular soldering port is heated.

Furthermore, the induction coil fixing part is fixedly arranged on the inductor bottom plate through an inductor supporting part; the side surface of the inductor supporting piece is provided with an inductor limiting piece; the inductor locating part extends to one side of the movable part of the induction coil so as to limit the lateral direction of the movable part of the induction coil.

Furthermore, a contact is arranged on the arc-shaped clamping opening and is made of silver tin oxide alloy.

Furthermore, stainless steel reinforcing plates are respectively welded on the induction coil fixing part and the induction coil moving part; and/or insulating epoxy plates are arranged outside the fixed part of the induction coil and the movable part of the induction coil.

Furthermore, a water tank is arranged on the induction coil fixing part; a water connecting port is arranged at the tail end of the arc-shaped clamping port of the induction coil fixing part and is communicated with the water tank; the fixed part of the induction coil is provided with a total water return port which is communicated with the water tank.

Furthermore, a water tank is arranged on the movable part of the induction coil; the tail end of the arc-shaped clamping opening of the movable part of the induction coil is provided with a water outlet connecting opening which is communicated with the water tank; the rotating part of the induction coil is provided with an induction coil moving part water inlet which is communicated with the water tank.

By adopting the scheme, repeated automatic opening and closing with high strength can be realized, manual opening and closing are avoided, the labor intensity of workers is reduced, the cost is saved, the phenomenon of striking sparks by the contact of the induction coil can be effectively avoided, and the induction brazing method is suitable for induction brazing of pipelines with complex shapes; according to the scheme provided by the invention, the welding effect of the induction brazing coil is more uniform, the whole-circle welding of the pipeline is realized, the welding quality is more reliable, the parts can be quickly replaced, and the use cost is reduced.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The invention will be further explained with reference to the drawings, in which:

FIG. 1 is a schematic view of an automatically opening and closing induction brazing coil according to the present invention;

FIG. 2 is a perspective view of a fixing portion of an induction coil according to the present invention;

FIG. 3 is a front view of the fixing portion of the induction coil of the present invention;

FIG. 4 is a sectional view taken along A-A of FIG. 3;

fig. 5 is a front view of the moving part of the induction coil.

In the figure: 1. a coaxial transformer; 2. an induction coil fixing part; 3. an induction coil movable part; 4. a cylinder; 5. a cylinder shaft guide rail; 6. rotating the slipknot; 7. a water inlet of the movable part of the induction coil; 8. an induction coil water inlet and outlet hose connector; 9. an induction coil water inlet; 10. a hose connector; 11. an inductor base plate; 12. an inductor support; 13. an inductor limit; 14. a cylinder support; 15. a water tank; 16. a water connection port; 17. a total water return port; 18. a water tank; 19. and a water outlet interface.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 5, the present invention provides an automatic opening and closing type induction brazing coil, which includes a coaxial transformer 1, an induction coil and an inductor base plate 11; the induction coil comprises an induction coil fixing part 2 and an induction coil moving part 3; the coaxial transformer 1 can be applied to all other induction brazing transformers; the inductor bottom plate 11 is a fixing plate of the automatic welding component; the tail ends of the induction coil fixing part 2 and the induction coil moving part 3 are respectively provided with an arc-shaped clamping opening, the inner radius c of the arc-shaped clamping opening is 15cm, and the outer radius of the arc-shaped clamping opening is 21 cm; the coaxial transformer 1 and the induction coil fixing part 2 are respectively and fixedly arranged on the inductor bottom plate 11, and one end of the induction coil fixing part 2 is connected with the coaxial transformer 1; the induction coil movable part 3 is rotatably arranged at the lower end of the induction coil fixing part 2 through a transmission assembly and forms an annular brazing opening with the induction coil fixing part 2; specifically, the induction coil movable part 3 is rotatably arranged at the lower end of the induction coil fixing part 2 and is driven to rotate by the transmission assembly, so that an arc-shaped clamping opening at the tail end of the induction coil movable part 3 and an arc-shaped clamping opening at the tail end of the induction coil fixing part 2 form an annular brazing opening, and the annular brazing opening can be adapted to workpieces in different shapes so as to facilitate brazing; the scheme provided by the invention can meet the requirements of fast beat and extremely high opening and closing times of assembly line operation; the barrier-free welding can be realized for the pipelines with complex shapes, and the problem of uneven welding can be completely solved for the induction brazing of the pipelines with large pipe diameters.

Preferably, with reference to the above solutions, as shown in fig. 1 to 5, as a preferred embodiment of the present invention, the automatic opening and closing type induction brazing coil further includes an air cylinder 4, the air cylinder 4 is fixedly disposed on the inductor base plate 11 through an air cylinder support 14, the air cylinder 4 is mainly used for providing control of automatic opening and closing of the coil, and the air cylinder support 14 is mainly used for supporting the air cylinder to prevent a position change of the air cylinder 4 from affecting a welding effect; the cylinder 4 is connected with the transmission of drive assembly to drive the induction coil movable part 3 and rotate, thereby control opening and shutting of induction coil fixed part 2 and induction coil movable part 3.

Preferably, in combination with the above solution, as shown in fig. 1 to 5, as a preferred embodiment of the present invention, the transmission assembly includes a rotary slipknot 6, and the rotary slipknot 6 is mainly used for a slipknot point where the induction coil automatically opens and closes; one end of the rotary slipknot 6 is connected with the cylinder 4 through a piston shaft, and the other end thereof drives the induction coil movable part 3 to rotate through the adapter; the quick replacement of the quick-wear parts can be realized by rotating the movable node of the slipknot 6, so that the use cost is reduced; because the rotary slipknot contact point is easy to damage after long-term rotation, the contact point adopts the replaceable rotary slipknot design to avoid the problem of inconvenient damage and replacement, and is convenient to replace when damaged.

Preferably, in combination with the above solution, as shown in fig. 1 to 5, as a preferred embodiment of the present invention, the transmission assembly further includes a cylinder shaft guide rail 8, the cylinder shaft guide rail 8 is mainly used for guiding the piston shaft of the cylinder to prevent the deviation; the cylinder shaft guide rail 8 is fixedly arranged on the inductor bottom plate 11, and the piston shaft penetrates through the cylinder shaft guide rail 8 and reciprocates along the cylinder shaft guide rail 8, so that the balance effect can be achieved, and welding errors and influence on welding quality caused by the deviation of the whole transmission assembly are avoided.

Preferably, in combination with the above solutions, as shown in fig. 1 to 5, as a preferred embodiment of the present invention, the rotating shaft of the induction coil movable part 3 not only plays a connecting role, but also plays a conductive role in its cross section, and the induction coil movable part 3 is arranged at the lower end of the induction coil fixed part 2 through the rotating shaft; a conductive copper plate is arranged on the rotating shaft; the induction coil movable part 3 is contacted with the induction coil fixed part 2 through a conductive copper plate in the rotating process to realize current conduction, so that a workpiece on the annular brazing opening is heated; the method specifically comprises the following steps: when the induction coil movable part 3 rotates, the rotating shaft of the induction coil movable part 3 and the lower end face connected with the rotating shaft are kept in contact with the other induction coil fixed part 2 fixing seat copper plate to realize high-current conduction, and after the induction coil movable part 3 rotates, the induction coil movable part 3 is in contact with the end part of the induction coil fixed part 2 to realize high-current conduction of the induction coil movable part 3 and the induction coil fixed part 2 and then heat a workpiece in the annular brazing port.

Preferably, in combination with the above solution, as shown in fig. 1 to 5, as a preferred embodiment of the present invention, the induction coil fixing part 2 is fixedly arranged on the inductor base plate 11 through the inductor supporting part 12; the inductor support 12 is used for limiting and supporting the inductor up and down; further, an inductor limiting part 13 is arranged on the side surface of the inductor supporting part 12; the inductor limiting part 13 is mainly used for limiting the movable end of the inductor; specifically, the inductor limiting part 13 is fixed on the inductor supporting part 12 and extends to one side of the moving part 3 of the induction coil to limit the lateral direction of the moving part 3 of the induction coil, that is, the moving part 3 of the induction coil can only open and close up and down along the inductor limiting part 13 due to the limiting function of the inductor limiting part 13 on the side edge, and is limited in the left and right directions, so as to maintain the integrity of opening and closing.

Preferably, in combination with the above solutions, as shown in fig. 1 to 5, as a preferred embodiment of the present invention, the arc-shaped clamping opening is provided with a contact, because the contact of the arc-shaped clamping opening is easy to ignite when the arc-shaped clamping opening is opened or closed, and the contact of the closed position is easy to ignite, the contact can be made of silver tin oxide alloy, so as to avoid ignition; the arc presss from both sides tight mouthful contact point in this application scheme and uses the alloy contact, can effectively reduce the contact problem of striking sparks.

Preferably, in combination with the above solutions, as shown in fig. 1 to 5, as a preferred embodiment of the present invention, since the movable portion 3 and the fixed portion 2 of the induction coil are subjected to different angles of force during the automatic rotation process, deformation and misalignment are easily generated; stainless steel reinforcing plates are respectively welded on the induction coil fixing part 2 and the induction coil moving part 3; further, the outside of the induction coil fixing part 2 and the induction coil moving part 3 is provided with an insulating epoxy plate.

Preferably, in combination with the above solutions, as shown in fig. 1 to 5, as a preferred embodiment of the present invention, a coil cooling water path is further provided on the induction coil, and the coil cooling water path includes a plurality of pipe members; the induction coil comprises an induction coil fixed part 2 and an induction coil movable part 3; the induction coil fixing part 2 is used for fixing a welded effective heating ring, a first pipe fitting part on the induction coil fixing part 2 is the interior of a water path copper pipe of the induction coil fixing part except for a total water inlet pipe and a total water outlet pipe, and the first pipe fitting part is not provided with an external water pipe; the second pipe fitting part on the induction coil fixing part 2 has the end part using an anti-oxidation alloy contact to reduce the ignition probability and prolong the service life; the induction coil movable part 3 is used for a movable part of an effective heating ring for welding, the first pipe fitting part of the induction coil movable part 3 is the interior of a water path copper pipe of the induction coil movable part except for a total water inlet pipe and a total water outlet pipe, and the part is not provided with an external water pipe; the second pipe fitting part of the induction coil moving part 3 has the end part using an anti-oxidation alloy contact to reduce the ignition probability and prolong the service life; the third pipe fitting part of the induction coil movable part 3 is a conductive copper plate which is supported by the third pipe fitting part and can realize movable rotary motion and high-current conduction; according to the scheme, the coil cooling water path is carefully designed, improved and optimized, so that the number of external pipelines is reduced, the reliability is improved, and the cooling effect is improved; the cooling water path for cooling is simple in fixed design of the closed coil water path, but the opening and closing induction coil is opened and closed frequently, and the water path can not run around the coil, so that a structure that the end parts of the closed coil water path are respectively connected with the water path is adopted.

Preferably, in combination with the above solutions, as shown in fig. 1 to 5, as a preferred embodiment of the present invention, a water tank 15 is disposed on the induction coil fixing part 2; a water connecting port 16 is arranged at the tail end of the arc-shaped clamping port of the induction coil fixing part 2, and the water connecting port 16 is communicated with the water tank 15; the other end of the induction coil fixing part 2 opposite to the arc-shaped clamping opening is provided with a total water return opening 17, and the total water return opening 17 is a total water return opening of the induction coil movable part 3 and the induction coil fixing part 2; the total water return port 17 communicates with the water tank 15 to realize cooling water return.

Preferably, in combination with the above solution, as shown in fig. 1 to 5, as a preferred embodiment of the present invention, a water tank 18 is provided on the induction coil movable portion 3; a water outlet connecting port 19 is arranged at the tail end of the arc-shaped clamping port of the induction coil movable part 3, and the water outlet connecting port 19 is communicated with the water tank 18; specifically, the water outlet connecting port 19 is an upper water connecting port and a lower water connecting port, and the inner diameter d of the water outlet connecting port 19 is 4 cm; the rotating part of the induction coil moving part 3 is provided with an induction coil moving part water inlet 7, and the induction coil moving part water inlet 7 is communicated with a water tank 18; wherein, the inner diameter a of the water inlet 7 of the movable part of the induction coil is 8 cm.

The induction coil provided by the invention is not limited in the field of induction brazing, and is applicable to all other fields of induction heating, and the induction coil can be automatically controlled and also can be manually controlled; specifically, the following is detailed with reference to the above structure, taking automatic control as an example: the air inlet end and the air outlet end of an air cylinder 9 are controlled through an automatic control program to realize the back and forth movement of a piston shaft of the air cylinder, the guide rail 8 of the air cylinder shaft is a guide rail of the piston shaft to realize the accurate movement of the front and back directions of the piston shaft, the piston shaft is fixedly connected with a rotary union to realize the back and forth movement of the rotary union, the rotary union is in notch fit connection with an induction coil movable part 3, the middle of the induction coil movable part 3 is positioned by using a rotating shaft, the back and forth movement of the rotary union is matched with the notch of the induction coil movable part 3 to realize the rotation of the induction coil movable part 3 around the rotating shaft, the size of the rotating angle is adjusted by the stroke of the piston shaft, the rotating shaft of the induction coil movable part 3 not only plays a connecting role, but also plays a conductive role in the section, when the induction coil movable part 3 rotates, the rotating shaft, the induction coil movable part 3 is contacted with the end part of the induction coil fixed part 2 after rotating to realize high current conduction of the induction coil movable part 3 and the induction coil fixed part 2 and then heat a workpiece in the annular braze welding opening area of the induction coil movable part 3 and the induction coil fixed part 2, and because the induction coil movable part 3 and the induction coil fixed part 2 are subjected to forces of different angles in the automatic rotating process and are easy to deform and dislocate, stainless steel reinforcements with corresponding thicknesses are welded on the induction coil movable part 3 and the induction coil fixed part 2, and an insulating epoxy plate is designed outside to support and reinforce the induction coil movable part 3 and the induction coil fixed part, so that the service life is prolonged; the rotating movable part of the induction coil movable part 3 is easy to wear, so the easy-to-wear part adopts the design of quick replacement, and the surface is lubricated by conductive paste, and after the induction coil movable part is worn, the worn part is only required to be removed and replaced by a new accessory.

By adopting the scheme, repeated automatic opening and closing with high strength can be realized, manual opening and closing are avoided, the labor intensity of workers is reduced, the cost is saved, the phenomenon of striking sparks by the contact of the induction coil can be effectively avoided, and the induction brazing method is suitable for induction brazing of pipelines with complex shapes; according to the scheme provided by the invention, the welding effect of the induction brazing coil is more uniform, the whole-circle welding of the pipeline is realized, the welding quality is more reliable, the parts can be quickly replaced, and the use cost is reduced.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.