CN215356866U - Welding preheating device - Google Patents
Welding preheating device Download PDFInfo
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- CN215356866U CN215356866U CN202121373090.0U CN202121373090U CN215356866U CN 215356866 U CN215356866 U CN 215356866U CN 202121373090 U CN202121373090 U CN 202121373090U CN 215356866 U CN215356866 U CN 215356866U
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Abstract
The utility model relates to the technical field of welding preheating, and discloses a welding preheating device which comprises a preheating mechanism, wherein the preheating mechanism comprises a medium-frequency heating coil, a temperature measuring component and a controller, the medium-frequency heating coil is used for preheating a workpiece to be welded, the temperature measuring component is used for measuring the preheating temperature of the workpiece, and the controller is electrically connected with the medium-frequency heating coil and the temperature measuring component and is set to control the work of the medium-frequency heating coil according to the temperature measured by the temperature measuring component. The welding preheating device can rapidly heat the steel plate structure, not only keep the temperature of the welding position of the steel plate structure the same, but also accurately control the heating temperature.
Description
Technical Field
The utility model relates to the technical field of welding preheating, in particular to a welding preheating device.
Background
The large-scale mechanical structure industry in China gradually transits from the initial creation period to the large-scale industry, the industry concentration is gradually increased, and the development trend of industry fusion, large-scale and independent creation innovation is presented in the future. The large-scale mechanical structure has the comprehensive advantages of high strength, light dead weight, good earthquake resistance, high industrialization degree, short construction period, strong plasticity, energy conservation, environmental protection and the like, is widely applied to industries such as industrial factory buildings, municipal infrastructure construction, cultural and educational sports construction, electric power, bridges, marine petroleum engineering, aerospace and the like, and the market space is gradually expanded.
The large mechanical structure has the characteristics of large unit volume, unit weight, unit size and the like, wherein welding is the main connection mode of the large mechanical structure, but the welded structure needs to be subjected to preheating treatment before welding.
At present, the existing welding preheating treatment adopts a preheating gun to heat a steel plate structure, when the preheating gun is used for heating the steel plate structure, the heating time is long, the temperature on the steel plate structure cannot be controlled, the local temperature is not uniform, resources are wasted, the welding quality of the steel plate is influenced, and welding defects such as cracks are easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that the warm temperature of a steel plate structure cannot be controlled, the local temperature is not uniform and the heating time is too long, and provides a welding preheating device which can rapidly heat the steel plate structure, so that the temperature of the welding position of the steel plate structure is kept the same, and the heating temperature can be accurately controlled.
In order to achieve the purpose, the utility model provides a welding preheating device which comprises a preheating mechanism, wherein the preheating mechanism comprises a medium-frequency heating coil, a temperature measuring component and a controller, the medium-frequency heating coil is used for preheating a workpiece to be welded, the temperature measuring component is used for measuring the preheating temperature of the workpiece, and the controller is electrically connected with the medium-frequency heating coil and the temperature measuring component and can control the medium-frequency heating coil to work according to the temperature measured by the temperature measuring component.
Optionally, the preheating mechanism comprises a mounting assembly on which the intermediate frequency heating coil and the temperature measuring component are mounted.
Optionally, the mounting assembly comprises a mounting plate and a support plate which are arranged at an interval from top to bottom, the temperature measuring component is arranged on the mounting plate, and the intermediate-frequency heating coil is arranged on the support plate.
Optionally, the mounting assembly further comprises a buffer member, a bottom end of the buffer member is lower than the support plate to prevent the intermediate frequency heating coil from directly contacting the workpiece when the preheating mechanism is close to the workpiece.
Optionally, the buffer is a roller.
Optionally, the welding preheating device further comprises a position adjusting mechanism, the preheating mechanism is connected to the position adjusting mechanism, and the position adjusting mechanism is configured to be capable of adjusting the position of the preheating mechanism relative to the workpiece.
Optionally, the position adjusting mechanism includes a rotating member capable of rotating around a vertical direction and a vertical telescopic member connected to the rotating member and capable of extending and retracting along the vertical direction, and the preheating mechanism is connected to a bottom end of the vertical telescopic member.
Optionally, the welding preheating device comprises a limit switch, the limit switch is installed on the installation plate, and the limit switch is used for limiting the vertical telescopic component downwards so as to avoid collision with the workpiece.
Optionally, the position adjustment mechanism includes a horizontal telescopic member that is telescopic in a horizontal direction, the horizontal telescopic member being connected between the rotating member and the vertical telescopic member.
Optionally, the welding preheating device further comprises a winch installed at the bottom of the rotating component, a motor installed on the winch, and a steel wire rope installed in the winch, the steel wire rope is wound in the winch, one end of the steel wire rope is connected to the motor, the other end of the steel wire rope is connected to the bottom of the vertical telescopic component through a roller installed at the top of the vertical telescopic component, and the motor is arranged to be capable of controlling the winch to rotate and retract the steel wire rope on the winch so as to control the vertical telescopic component to stretch in the vertical direction and the horizontal telescopic component to stretch in the horizontal direction.
Through the technical scheme, the welding preheating device has the following beneficial effects:
in the process of using the welding preheating device, the intermediate frequency heating coil can quickly and uniformly improve the local temperature of two sides of the welding seam of the workpiece; the temperature measuring component can detect the local temperature of two sides of a welding seam of the workpiece, then sends a signal to the controller, controls the local temperature of the welding of the workpiece by controlling the medium-frequency heating coil, and can also accurately control the heating depth and the heating position of the workpiece so as to facilitate the subsequent welding work; the workpiece is not in direct contact with a heat source, so that the workpiece can be prevented from being damaged in the preheating process, and the medium-frequency heating coil can be protected from being damaged; the medium-frequency heating coil can uniformly preheat the welding position of the workpiece, and the local temperature difference at the welding position is avoided; finally, the workpiece can be heated to a preset temperature in a short time, the temperature of the workpiece is uniform, and the workpiece can be well protected from being damaged.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.
In the drawings:
FIG. 1 is a perspective view of one embodiment of a weld preheating apparatus of the present invention;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is an enlarged view of B in FIG. 2;
FIG. 4 is a front view of one embodiment of the weld preheating apparatus of the present invention
Fig. 5 is an enlarged view of C in fig. 4.
Description of the reference numerals
1-preheating mechanism, 11-intermediate frequency heating coil, 12-temperature measuring component, 13-mounting component, 131-supporting plate, 132-mounting plate, 14-roller, 15-limit switch, 2-position adjusting mechanism, 21-vertical telescopic component, 22-rotating component, 23-horizontal telescopic component, 3-electrode, 4-winch and 5-steel wire rope.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the use of directional terms such as "upper, lower, left, right" generally means the orientation shown in fig. 1 without being described to the contrary.
In order to achieve the above purpose, the present invention provides a welding preheating device, which includes a preheating mechanism 1, wherein the preheating mechanism 1 includes a medium frequency heating coil 11, a temperature measuring component 12 and a controller, the medium frequency heating coil 11 is used for preheating a workpiece to be welded, the temperature measuring component 12 is used for measuring the preheating temperature of the workpiece, and the controller is electrically connected to the medium frequency heating coil 11 and the temperature measuring component 12 and is configured to be capable of controlling the operation of the medium frequency heating coil 11 according to the temperature measured by the temperature measuring component 12.
In the process of using the welding preheating device, the intermediate frequency heating coil 11 can rapidly and uniformly improve the local temperature of two sides of the welding seam of the workpiece; the temperature measuring component 12 can detect the local temperature of two sides of a welding seam of the workpiece, then sends a signal to the controller, controls the local temperature of the welding of the workpiece by controlling the medium-frequency heating coil 11, and can also accurately control the heating depth and the heating position of the workpiece so as to facilitate the subsequent welding work; the workpiece is not in direct contact with a heat source, so that the workpiece can be prevented from being damaged in the preheating process, and the intermediate-frequency heating coil 11 can be protected from being damaged; the medium-frequency heating coil 11 can uniformly preheat the welding position of the workpiece, and local temperature difference at the welding position is avoided; finally, the workpiece can be heated to a preset temperature in a short time, the temperature of the workpiece is uniform, and the workpiece can be well protected from being damaged.
As shown in fig. 2, in the present invention, the preheating mechanism 1 includes a mounting assembly 13, and the intermediate frequency heating coil 11 and the temperature measuring part 12 are mounted on the mounting assembly 13.
The mounting assembly 13 includes a mounting plate 132 and a support plate 131 arranged at an interval from top to bottom, the temperature measuring part 12 is arranged on the mounting plate 132, and the intermediate frequency heating coil 11 is arranged on the support plate 131. The mounting plate 132 can be provided with other components, so that the structure of the preheating mechanism 1 is more compact; the support plate 131 is installed at the bottom of the installation plate 132, wherein the support plate 131 is divided into three layers, the first layer and the third layer are made of any insulator, the second layer is mainly composed of the intermediate frequency heating coil 11, the intermediate frequency heating coil 11 can be uniformly laid between the first layer and the third layer, the first layer and the third layer can protect the intermediate frequency heating coil 11 from being damaged, and the position where the intermediate frequency heating coil 11 is laid between the first layer and the third layer can be ensured to be unchanged, so that the magnetic field generated by the electrified intermediate frequency heating coil 11 is fixed; the shape of the supporting plate 131 can be any shape, such as a plane, an arc surface, a conical surface, and the like, the supporting plate 131 of the present invention is preferably a plane, the shape of the supporting plate 131 is designed mainly according to the requirements of the workpieces to be welded, the shapes of the workpieces are different, and the curves of the welding seams of the workpieces are also different, so that a suitable shape of the supporting plate 131 is selected to adapt to the welding seams of the workpieces; the supporting plate 131 at the bottom of the mounting plate 132 may be multiple, multiple supporting plates 131 are laid on the same horizontal plane, if the welding seam of the workpiece is longer, multiple supporting plates 131 may be arranged to form a longer welding seam for adapting to the workpiece, and the supporting plates 131 may be arranged in other ways to adapt to the welding seam that does not pass through.
As shown in fig. 2 and 3, in the present invention, the mounting assembly 13 further includes a buffer member 14, and a bottom end of the buffer member 14 is lower than the support plate 131 to prevent the intermediate frequency heating coil 11 from directly contacting the workpiece when the preheating mechanism 1 approaches the workpiece. In the preheating process, the preheating mechanism 1 firstly moves to the position near the workpiece to be welded and finely adjusts the position above the welding seam of the workpiece, if the supporting plate 131 is connected with the workpiece, the supporting plate 131 can be extruded and deformed, the preheating efficiency and quality are affected, the workpiece is more likely to be damaged, and larger loss is caused, wherein the buffer piece 14 can prevent the supporting plate 131 from directly contacting with the workpiece.
The buffer 14 is a roller 141. The roller 141 can be sleeved with a rubber buffer layer, so that when the roller 141 rolls on a workpiece, the workpiece can be protected from being damaged, and the supporting plate 131 is further prevented from contacting the workpiece.
As shown in fig. 1 and 3, in the present invention, the welding preheating device further includes a position adjusting mechanism 2, the preheating mechanism 1 is connected to the position adjusting mechanism 2, and the position adjusting mechanism 2 is configured to be able to adjust the position of the preheating mechanism 1 relative to the workpiece. Adjustment mechanism 2 can adjust the spatial position who preheats mechanism 1 to adapt to the work piece of equidimension not, further, for the difference of adaptation work piece welding seam, most welding seams are the straight line, but some welding seams are the curve of buckling, and the work piece is preheating the in-process, and adjustment mechanism 2 can be accurate control preheats mechanism 1's preheating distance, so that preheat the work piece that mechanism 1 can be quick, carry out welding on next step.
Wherein, the position adjusting mechanism 2 comprises a rotating component 22 capable of rotating around the vertical direction and a vertical telescopic component 21 connected to the rotating component 22 and capable of extending and retracting along the vertical direction, and the preheating mechanism 1 is connected to the bottom end of the vertical telescopic component 21. The rotating part 22 can control the preheating mechanism 1 to rotate in a certain plane, and can also adjust the rotation angle of the preheating mechanism 1, so that the alternating current magnetic field of the intermediate frequency heating coil 11 is matched with the welding seam of the workpiece; the vertical telescopic member 21 can control the position of the preheating mechanism 1 in the vertical direction.
As shown in fig. 2 and 3, in the present invention, the welding preheating device 1 includes a limit switch 15, the limit switch 15 is mounted on the mounting plate 132, and the limit switch 15 is used for limiting the downward movement of the vertical telescopic member 21 so as not to collide with the workpiece. When the limit switch 15 contacts with the workpiece, the limit switch 15 can further control the vertical telescopic part 21, and the workpiece or the preheating mechanism 1 is prevented from being damaged.
As shown in fig. 1 and 3, in the present invention, the position adjustment mechanism 2 includes a horizontal telescopic member 23 which can be extended and contracted in a horizontal direction, and the horizontal telescopic member 23 is connected between the rotating member 22 and the vertical telescopic member 21. The vertical telescopic member 21, the horizontal telescopic member 23 and the rotating member 22 are matched with each other, so that the preheating mechanism 1 can be controlled to move randomly in a certain range of space.
As shown in fig. 1 and 3, in the present invention, the welding preheating device further includes a winch 4 installed at the bottom of the rotating member 22, a motor 3 installed on the winch 4, and a steel wire rope 5 installed in the winch 4, the steel wire rope 5 is wound in the winch 4, one end of the steel wire rope 5 is connected to the motor 3, the other end of the steel wire rope 5 is connected to the bottom of the vertical telescopic member 21 through a roller installed at the top of the vertical telescopic member 21, and the motor 3 is configured to be capable of controlling the winch 4 to rotate and to take up and pay off the steel wire rope 5 on the winch 4, so as to control the vertical telescopic member 21 to stretch in the vertical direction and the horizontal telescopic member 23 to stretch in the horizontal direction.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The utility model provides a welding preheating device, its characterized in that, is including preheating mechanism (1), preheating mechanism (1) includes intermediate frequency heating coil (11), temperature measurement part (12) and controller, intermediate frequency heating coil (11) are used for treating the welding work piece and preheat, temperature measurement part (12) are used for measuring the preheating temperature of work piece, the controller with intermediate frequency heating coil (11) with temperature measurement part (12) electricity is connected to set up to can be according to the temperature control that temperature measurement part (12) surveyed the work of intermediate frequency heating coil (11).
2. The welding preheating apparatus according to claim 1, wherein the preheating mechanism (1) includes a mounting assembly (13), and the intermediate frequency heating coil (11) and the temperature measuring part (12) are mounted on the mounting assembly (13).
3. The welding preheating device according to claim 2, wherein the mounting assembly (13) comprises a mounting plate (132) and a support plate (131) which are arranged at intervals up and down, the temperature measuring part (12) is arranged on the mounting plate (132), and the intermediate frequency heating coil (11) is arranged on the support plate (131).
4. The welding preheating device according to claim 3, characterized in that the mounting assembly (13) further comprises a buffer member (14), a bottom end of the buffer member (14) being lower than the support plate (131) to prevent the intermediate frequency heating coil (11) from coming into direct contact with the workpiece when the preheating mechanism (1) is close to the workpiece.
5. The welding pre-heating device according to claim 4, characterized in that the buffer (14) is a roller (141).
6. The welding pre-heating device according to any one of the claims 3-5, characterized in that the welding pre-heating device further comprises a position adjusting mechanism (2), the pre-heating mechanism (1) being connected to the position adjusting mechanism (2), the position adjusting mechanism (2) being arranged to be able to adjust the position of the pre-heating mechanism (1) relative to the work piece.
7. The welding preheating apparatus according to claim 6, wherein the position adjustment mechanism (2) includes a rotating member (22) rotatable about a vertical direction and a vertically extensible member (21) connected to the rotating member (22) and extensible in the vertical direction, and the preheating mechanism (1) is connected to a bottom end of the vertically extensible member (21).
8. The welding preheating apparatus according to claim 7, characterized in that the welding preheating apparatus (1) comprises a limit switch (15), the limit switch (15) being mounted on the mounting plate (132), the limit switch (15) being configured to limit the vertical telescopic member (21) downwards so as not to collide with the workpiece.
9. The welding pre-heating device according to claim 7, characterized in that the position adjustment mechanism (2) comprises a horizontally telescopic member (23) which is telescopic in a horizontal direction, the horizontally telescopic member (23) being connected between the rotating member (22) and the vertically telescopic member (21).
10. The welding pre-heating device according to claim 9, further comprising a hoist (4) installed at the bottom of the rotating member (22), a motor (3) installed on the hoist (4), and a wire rope (5) installed inside the hoist (4), the steel wire rope (5) is coiled in the winch (4), one end of the steel wire rope (5) is connected with the motor (3), the other end of the steel wire rope (5) is connected to the bottom of the vertical telescopic part (21) through a roller arranged on the top of the vertical telescopic part (21), the motor (3) is arranged to control the winch (4) to rotate and to take up and pay off the steel wire rope (5) on the winch (4), for controlling the extension and contraction of the vertical telescopic part (21) in the vertical direction and the extension and contraction of the horizontal telescopic part (23) in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121373090.0U CN215356866U (en) | 2021-06-18 | 2021-06-18 | Welding preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121373090.0U CN215356866U (en) | 2021-06-18 | 2021-06-18 | Welding preheating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215356866U true CN215356866U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121373090.0U Active CN215356866U (en) | 2021-06-18 | 2021-06-18 | Welding preheating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215356866U (en) |
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2021
- 2021-06-18 CN CN202121373090.0U patent/CN215356866U/en active Active
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