CN210615486U

CN210615486U - Low-noise medium-frequency induction welding device for welding welded pipe

Info

Publication number: CN210615486U
Application number: CN201920623466.5U
Authority: CN
Inventors: 李大龙; 杨玉星
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2020-05-26
Anticipated expiration: 2029-05-05

Abstract

The utility model discloses a low-noise medium-frequency induction welding device for welding a welded pipe, which mainly comprises a welded pipe A, a welded pipe B, inductors, a damping screw rod and a screw rod fixing support, wherein the welded pipe A is in coaxial butt joint with the welded pipe B, the two inductors are symmetrically arranged at the left side and the right side of the butt joint of the welded pipe A and the welded pipe B and are in coaxial with the welded pipe A and the welded pipe B, the lower ends of the two inductors are arranged on the damping screw rod, the relative positions can be adjusted through the rotation of the damping screw rod, the damping screw rod is arranged on the screw rod fixing support, the device adds a thickening coil sleeve on the basis of the prior device, when the welding work of a large-size workpiece is carried out, the noise generated by the resonance of an induction coil caused by medium-frequency alternating current can be effectively reduced, the two inductors are connected together, the quality of the induction coil is increased, the vibration frequency of the induction coil, the effect of noise reduction has further been reached, and this device simple structure makes conveniently, and is with low costs, suitable popularization.

Description

Low-noise medium-frequency induction welding device for welding welded pipe

Technical Field

The utility model discloses the device relates to the induction heating field and falls the noise treatment, concretely relates to a low noise intermediate frequency induction welding device for welded tube welding.

Background

The medium frequency induction welding is to put the metal work piece that needs the welding in the inductor, and the inductor generally is the hollow copper pipe of input medium frequency alternating current, produces induction electromagnetic field, produces induced electromotive force at the coupling of work piece surface, forms the induction vortex on the metal surface, relies on the vortex that produces at the metal surface to generate heat, generally can scribble the welding powder at the welding position, wait to the work piece to reach when brazing filler metal melting temperature the welding can, compare traditional welding process, induction welding is comparatively clean environmental protection's welding gimmick. However, with the continuous development of modern industry, the size of a welding workpiece is gradually increased, the size of an induction coil is also increased, coil resonance is more easily caused when medium-frequency alternating current is introduced, and thus howling is generated, so that the service life of the workpiece is shortened, the maintenance cost is increased, and the work environment is very unfavorable for the health of workers in the working environment for a long time.

Disclosure of Invention

To above problem, the utility model discloses the device uses welded tube intermediate frequency induction welding as the example, improves on original intermediate frequency induction welding device, provides one kind and is used for welded tube welded low noise intermediate frequency induction welding device.

The utility model discloses the device is mainly including welded tube A, welded tube B, the inductor, the shock attenuation lead screw, the lead screw fixed bolster, welded tube A and welded tube B are with the axle center butt joint, the left and right sides in welded tube A and welded tube B butt joint department is placed to two inductor symmetries, and with welded tube A and welded tube B with the axle center, two inductor lower extremes are installed on the shock attenuation lead screw, place subaerial simultaneously, relative position can be adjusted through the rotation of shock attenuation lead screw, the shock attenuation lead screw is installed on the lead screw fixed bolster, the lead screw fixed bolster is placed in ground.

Wherein the inductor mainly comprises a bolt, a thickening coil sleeve A, an induction coil A, an insulating sheet, a thickening coil sleeve B, an induction coil B, a nut, a water inlet pipe, a water outlet pipe, a positive terminal and a negative terminal, the induction coil A and the induction coil B are respectively embedded inside the thickening coil sleeve A and the thickening coil B, the induction coil A, B and the thickening coil sleeve A, B are coaxial, the induction coil A and the thickening coil sleeve A are fixed together through the positive terminal, the induction coil B and the thickening coil sleeve B are fixed together through the negative terminal, the thickening coil sleeve A, the insulating sheet and the thickening coil sleeve B are tightly connected through the bolt and the nut, meanwhile, in order to prevent the positive terminal and the negative terminal from short circuit, the insulating sheet is positioned at the central position of the joint of the thickening coil sleeve A and the thickening coil sleeve B, the water inlet pipe is positioned at the lower end part of the induction coil A, the water outlet pipe is positioned at the lower end part of the induction coil B, and cooling water flows in from the water inlet pipe and flows out from the water outlet pipe in the heating process.

The utility model discloses the device includes following technical scheme: firstly, two induction coils connected with a damping screw rod are stably placed on a horizontal plane, and a welded pipe A and a welded pipe B which are well butted are placed on central axes of two inductors; then, roughly adjusting the two inductors by rotating the damping screw rod, finely adjusting the two inductors by bolts on the inductors, and ensuring that the butt joint position of the welded pipe A and the welded pipe B is positioned at the center of the two inductors, so that the butt joint position of the welded pipe A and the welded pipe B is uniformly heated during induction heating welding, and the quality of a welded seam after welding is optimized; and finally, performing medium-frequency induction welding on the welded pipe A and the welded pipe B, switching on medium-frequency alternating current, enabling current to flow in from the positive terminal, flowing through the induction coil A and the induction coil B and then flowing out from the negative terminal, enabling the two inductors to work symmetrically and heat simultaneously, and switching on the water inlet pipe and the water outlet pipe to cool the inductors.

The utility model discloses the device is than the advantage and the positive effect that current device brought:

1. the thickening coil sleeve is added on the basis of the original medium-frequency induction welding device, and when the welding work of a large-size workpiece is carried out, the resonance of the induction coil caused by medium-frequency alternating current can be effectively reduced, so that the noise is reduced.

2. This device adopts two inductors to carry out intermediate frequency induction heating welding simultaneously for welding seam department is heated more evenly, and then optimizes the welding seam quality, connects two inductors simultaneously and is one, makes the induction coil quality increase, has reduced the vibration frequency of induction coil in the welding process, has further reached the effect of noise reduction.

3. The device has the advantages of simple structure, easy operation, low cost and strong practicability.

Drawings

The device of the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is an isometric view of a preferred embodiment of the device of the present invention;

FIG. 2 is a detail view of a single sensor of the device of the present invention;

fig. 3 is a schematic structural diagram of the induction coil of the present invention.

In figure 1, weld tube A; 2. an inductor; 3. a positive terminal; 4. a negative terminal; 5. welding a tube B; 6. a lead screw fixing bracket; 7. a shock-absorbing lead screw; 8. a water inlet pipe; 9. a bolt; 10. thickening the coil sleeve A; 11. an induction coil A; 12. an insulating sheet; 13. thickening the coil sleeve B; 14. an induction coil B; 15. a nut; 16. and (5) discharging a water pipe.

Detailed Description

In fig. 1-3, a welded tube a (1) and a welded tube B (5) are coaxially butted, two inductors (2) are symmetrically arranged on the left side and the right side of the butt joint of the welded tube a (1) and the welded tube B (5) and are coaxially connected with the welded tube a (1) and the welded tube B (5), the lower ends of the two inductors (2) are arranged on a damping screw rod (7) and are simultaneously arranged on the ground, the relative positions can be adjusted through the rotation of the damping screw rod (7), the damping screw rod (7) is arranged on a screw rod fixing support (6), the screw rod fixing support (6) is arranged on the ground, wherein the inductors (2) mainly comprise bolts (9), thickening coil sleeves a (10), induction coils a (11), insulating sheets (12), thickening coil sleeves B (13), induction coils B (14), nuts (15), water inlet pipes (8), water outlet pipes (16), positive terminals (3), A negative terminal (4), an induction coil A (11) and an induction coil B (14) are respectively embedded in the thickened coil sleeve A (10) and the thickened coil B (13), the induction coil A (11) and the induction coil B (14) are respectively coaxial with the thickened coil sleeve A (10) and the thickened coil sleeve B (13), the induction coil A (11) and the thickened coil sleeve A (10) are fixed together through a positive terminal (3), the induction coil B (14) and the thickened coil sleeve B (13) are fixed together through the negative terminal (4), the thickened coil sleeve A (10), an insulating sheet (12) and the thickened coil sleeve B (13) are tightly connected through a bolt (9) and a nut (15), and the insulating sheet (12) is positioned at the central position of the connection position of the thickened coil sleeve A (10) and the thickened coil sleeve B (13) in order to prevent the positive terminal (3) from being short-circuited with the negative terminal (4), the water inlet pipe (8) is positioned at the lower end part of the induction coil A (11), the water outlet pipe (16) is positioned at the lower end part of the induction coil B (14), and cooling water flows in from the water inlet pipe (8) and flows out from the water outlet pipe (16) in the heating process.

In the implementation of fig. 1-3, firstly, two inductors (2) connected with a damping screw rod (7) are stably placed on a horizontal plane, and a welded pipe A (1) and a welded pipe B (5) which are butted are placed on the central axis of the two inductors (2); then, roughly adjusting the two inductors (2) by rotating the damping screw (7), finely adjusting the two inductors (2) by bolts (9) on the inductors (2), ensuring that the butt joint of the welded pipe A (1) and the welded pipe B (5) is positioned at the centers of the two inductors (2), uniformly heating the butt joint of the welded pipe A (1) and the welded pipe B (5) during induction heating welding, and optimizing the quality of a welded seam after welding; and finally, performing intermediate frequency induction welding on the welded pipe A (1) and the welded pipe B (5), switching on intermediate frequency alternating current, enabling current to flow in from the positive terminal (3), flowing through the induction coil A (11) and the induction coil B (14) and then flowing out from the negative terminal (4), enabling the two inductors (2) to work symmetrically and heat simultaneously, and switching on the water inlet pipe (8) and the water outlet pipe (16) to cool the inductors (2).

Claims

1. The utility model provides a be used for welded tube welded low noise intermediate frequency induction welding device, mainly includes welded tube A, welded tube B, inductor, shock attenuation lead screw, lead screw fixed bolster, bolt, its characterized in that: weld pipe A with weld pipe B and dock with the axle center, two the inductor symmetry is placed weld pipe A with the left and right sides of weld pipe B butt joint department, and with weld pipe A with weld pipe B and dock with the axle center, two the inductor lower extreme is installed on the shock attenuation lead screw, place subaerial simultaneously, can pass through the relative position is adjusted in the rotation of shock attenuation lead screw, shock attenuation lead screw installs on the lead screw fixed bolster, lead screw fixed bolster level is placed.

2. The low-noise medium-frequency induction welding device for welding the welded pipe as claimed in claim 1, which is characterized in that: the inductor mainly comprises a bolt, a thickening coil sleeve A, an induction coil A, an insulating thin sheet, a thickening coil sleeve B, an induction coil B, a nut, a water inlet pipe, a water outlet pipe, a positive terminal and a negative terminal, wherein the induction coil A and the induction coil B are respectively embedded in the thickening coil sleeve A and the thickening coil sleeve B, the induction coil A and the induction coil B are respectively fixed with the thickening coil sleeve A and the thickening coil sleeve B with the same axle center, the induction coil A and the thickening coil sleeve A are fixed together through the positive terminal, the induction coil B and the thickening coil sleeve B are fixed together through the negative terminal, the thickening coil sleeve A, the insulating thin sheet and the thickening coil sleeve B are tightly connected through the bolt and the nut, and the positive terminal and the negative terminal are simultaneously prevented from short circuit, the insulating sheet is located thickening coil cover A with the central point of thickening coil cover B junction puts, the inlet tube is located induction coil A's lower tip, the outlet pipe is located induction coil B's lower tip, cooling water follows in the heating process the inlet tube flows in, follows the outlet pipe flows out.

3. The low-noise medium-frequency induction welding device for welding the welded pipe as claimed in claim 1, which is characterized in that: the vibration reduction screw rod rotates to roughly adjust the two inductors, and the bolts on the inductors finely adjust the two inductors, so that the butt joint of the welded pipe A and the welded pipe B is located at the center of the two inductors, the butt joint of the welded pipe A and the welded pipe B is uniformly heated during induction heating welding, and the quality of a welded seam after welding is optimized.

4. The low-noise medium-frequency induction welding device for welding the welded pipe as claimed in claim 2, wherein: when the induction welding device works, medium-frequency alternating current is switched on, current flows in from the positive terminal, flows through the induction coil A and the induction coil B and then flows out from the negative terminal, two inductors work simultaneously, and are symmetrically heated and switched on simultaneously, the water inlet pipe and the water outlet pipe are right the inductors are cooled.