CN209919082U - An experimental device for induction welding - Google Patents

Abstract

The utility model discloses an induction welding experimental device, which mainly comprises a billet, an induction coil, a roller mechanism, a squeeze roller, a roller column, a camera, a photographing bracket, a steel wire rope, a fixed pulley, a workbench, an electric pulley, a motor, an image processing and a Feedback system, motor control system, extrusion volume control system and power supply control system. The induction coil is in the shape of a "bell mouth". As the gap between the billets decreases, the diameter of the induction coil becomes smaller; the electric pulley and the motor are placed under the worktable, and the electric pulley is connected with the wire rope. Benefit: The camera captures the morphological image of the burr outside the weld in real time, and feeds back the morphological image processing results to each control system to adjust the welding parameters, optimize the welding process, and find the best welding conditions; the motor controls the speed of the electric pulley to realize the The adjustment of the welding speed, in addition to arranging the electric pulley and the motor under the worktable, can shorten the production line and reduce the space occupied by the experimental device.

Description

An experimental device for induction welding

technical field

The utility model belongs to the field of high-frequency induction welding, in particular to an induction welding experimental device.

Background technique

In the process of high-frequency induction welding, because the current is highly concentrated in the welding area and the heating speed is extremely fast, the welding speed is fast, not only the heat-affected zone is small, but also oxidation is not easy to occur, so the structure and performance of the weld are very good; The surface of the front weldment can not be cleaned, thus improving the efficiency; in addition, the welding method can weld a wide range of metals, and the shapes and specifications of the products are many. Based on the above advantages, the high frequency induction welding method has been widely used. In order to use this method better, it is often necessary to verify the processing parameters and conditions through experiments in advance. However, in the actual experiment process, the steel pipe factory uses steel pipes for full-scale experiments, which is very costly, so it is necessary to design a high-frequency induction welding experimental device that can meet the experimental requirements in the laboratory. The existing design scheme has problems such as long production line, large footprint, and difficulty in implementation.

SUMMARY OF THE INVENTION

In view of the above deficiencies, the device of the present invention provides an induction welding experimental device.

The technical scheme adopted by the device of the utility model to solve the technical problem is as follows: mainly includes a billet, an induction coil, a roller mechanism, a squeeze roller, a roller column, a camera, a photographing bracket, a steel wire rope, a fixed pulley, a workbench, an electric pulley, a motor, Image processing and feedback system, motor control system, extrusion amount control system and power supply control system, wherein the roller mechanism is composed of a roller and a horizontal axis. The induction coil is sleeved on the unwelded end of the billet, fixed on the workbench, and not in contact with the billet, and the two electrodes of the induction coil are connected to the power supply control system. Four roller columns are distributed and fixed on the worktable, four roller mechanisms are respectively fixed on the roller columns, and the billet passes through the middle of the upper and lower roller mechanisms. The squeezing rollers are fixed on the surface of the worktable and stand on both sides of the billet respectively, and the two squeezing rollers are connected with the squeezing amount control system. After the billet welding is completed, a camera is set at the output end, the camera is fixed on the photographing bracket, and the photographing bracket is fixed on the surface of the worktable. The output end of the billet is connected to one end of the wire rope, the other end of the wire rope is connected to the electric pulley through the fixed pulley, the electric pulley and the motor are fixed on the lower plate, and the motor is connected to the electric pulley and is controlled by the motor control system.

The induction coil is in the shape of a "bell mouth". As the gap between the billets decreases, the diameter of the induction coil becomes smaller; the induction coil is sleeved on the unwelded end of the billet and does not contact the billet. The two electrodes of the induction coil are connected to the power supply control system. Electric parameters such as welding power and current frequency can be adjusted during the welding process. Four roller columns are fixedly distributed on the worktable, and four roller mechanisms are respectively fixed on the roller columns. The billet passes through the middle of the upper and lower roller mechanisms. The roller supports the billet and rotates with the movement of the billet. The squeezing rollers are fixed on the surface of the worktable, stand on both sides of the billet, and are controlled by the extrusion amount control system to adjust the amount of extrusion of the billet during the welding process. After the billet welding is completed, a camera is set at the output end. The camera is fixed on the camera bracket, and the camera bracket is fixed on the surface of the worktable; the camera is connected to the image processing and feedback system. The welding quality is judged by the appearance, and the processing results of the burr photos are transmitted to the power supply control system, the extrusion amount control system and the motor control system, and the corresponding parameter changes are made to optimize the welding process to realize the feedback adjustment of the welding process. A steel wire rope is fixed at the output end of the billet, and the steel wire rope is connected with the electric pulley through the fixed pulley that plays a guiding role, and the electric pulley and the motor are fixed on the flat plate below it. Driven by the motor, the electric pulley can retract the wire rope, thereby driving the billet to move, simulating the movement of the billet during the welding process. The electric pulley and the motor are placed under the worktable and connected with the motor control system, which can realize the adjustment of the welding speed during the welding process.

The benefits of the technical solution provided by the device of the present utility model:

1. The camera can capture the shape image of the outer burr in real time, and transmit the image information to the image processing and feedback system. The image processing and feedback system then transmits the output signal to the power supply control system, the extrusion amount control system and the motor control system for adjustment. Values for welding electrical parameters, extrusion volume, and welding speed to optimize the welding process.

2. The induction coil is in the shape of a "bell mouth". With the reduction of the middle distance of the billet, the distance from the two sides of the billet to the induction coil can be reduced to improve the heating efficiency of the billet.

3. The billet is pulled forward by the guide of the fixed pulley through the wire rope, and the motor is used to control the change of the rotation speed of the electric pulley, adjust the moving speed of the billet, and realize the adjustment of the welding speed; compared with the hydraulic rod with limited length, the electric pulley is theoretically When retracting the wire rope, there is no length limit; in addition, arranging the electric pulley and motor under the workbench can shorten the production line and reduce the space occupied by the experimental device.

Description of drawings

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

Fig. 1 is the axonometric view of a kind of induction welding experimental device of the utility model device;

Fig. 2 is the front view of a kind of induction welding experimental device of the utility model device;

FIG. 3 is a top view of an induction welding experimental device of the utility model.

1. Steel billet, 2. Induction coil, 3. Roller mechanism, 4. Squeeze roller, 5. Roller column, 6. Camera, 7. Photo stand, 8. Steel wire rope, 9. Fixed pulley, 10. Workbench, 11. Electric pulley, 12, motor, 13, image processing and feedback system, 14, motor control system, 15, extrusion volume control system, 16, power supply control system.

Detailed ways

As shown in Figure 1, an induction welding experimental device mainly includes a billet 1, an induction coil 2, a roller mechanism 3, a squeezing roller 4, a roller column 5, a camera 6, a photographing bracket 7, a wire rope 8, a fixed pulley 9, a working Stage 10, electric pulley 11, motor 12, image processing and feedback system 13, motor control system 14, extrusion amount control system 15, power supply control system 16.

The power supply control system 16 is turned on, the induction coil 2 is energized, and the billet 1 starts to heat. The motor control system 14 is turned on, the electric pulley 11 placed under the worktable 10 starts to rotate under the driving of the motor 12, the wire rope 8 guided by the fixed pulley 9 is rotated and retracted, and then the billet 1 is driven to move, and the welding process is simulated. The induction coil 2 is fixedly sleeved on the unwelded end of the steel billet 1 and is not in contact with the steel billet 1 . The billet 1 moves through the up and down roller mechanism 3 fixed on the roller column 5, and drives the roller to rotate. After the welding seam of the billet 1 is heated to a certain temperature, the welding is started under the extrusion of the extrusion roller 4 . The camera 6 installed on the billet output path is fixed on the photographing bracket 7 , and captures the shape image of the outer burr in real time, and transmits the image information to the image processing and feedback system 13 . If the welding seam meets the requirements, continue welding without feedback adjustment; if the welding seam does not meet the requirements, the image processing and feedback system will transmit the output signal to each control system for feedback adjustment. The feedback adjustment is repeated in this way until the welding seam meets the requirements, that is, the high-frequency induction welding experiment process is completed, so as to achieve the best welding state, and then obtain the most suitable welding processing conditions and parameters.

Claims (3)

1. An induction welding experimental device mainly comprises a steel billet, an induction coil, roller mechanisms, an extrusion roller, roller columns, a camera, a photographing support, a steel wire rope, a fixed pulley, a workbench, an electric pulley, a motor, an image processing and feedback system, a motor control system, an extrusion amount control system and a power supply control system, wherein the roller mechanisms comprise rollers and a cross shaft, and the induction welding experimental device is mainly characterized in that the induction coil is sleeved at the non-welding end of the steel billet, is not in contact with the steel billet and is fixed on the workbench, two electrodes of the induction coil are connected with the power supply control system, four roller columns are fixed on the workbench, four roller mechanisms are respectively fixed on the roller columns, the steel billet passes through the middle position of the upper roller mechanism and the lower roller mechanism, and the extrusion roller is fixed on the surface of the workbench, stand respectively in the steel billet both sides, two the squeeze roll with extrusion volume control system connects, the steel billet welding accomplishes the output and sets up the camera, the camera is fixed on the support of shooing and with image processing and feedback system connect, the support of shooing is fixed the workstation surface, the steel billet output with wire rope's one end is connected, wire rope's other one end is passed fixed pulley with electric pulley connects, electric pulley with the motor is fixed on its lower extreme is dull and stereotyped, the motor with electric pulley is connected, receives motor control system controls.

2. An induction welding experimental apparatus as claimed in claim 1, characterized in that: the induction coil is in a horn mouth shape, and the diameter of the induction coil is smaller along with the reduction of the gap between the steel billets.

3. An induction welding experimental apparatus as claimed in claim 1, characterized in that: the electric pulley and the motor are arranged below the workbench.

Images