CN211915809U - Induction welding joint for welding small U-shaped pipe and welding machine comprising same - Google Patents
Induction welding joint for welding small U-shaped pipe and welding machine comprising same Download PDFInfo
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- CN211915809U CN211915809U CN201922178847.XU CN201922178847U CN211915809U CN 211915809 U CN211915809 U CN 211915809U CN 201922178847 U CN201922178847 U CN 201922178847U CN 211915809 U CN211915809 U CN 211915809U
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Abstract
The utility model discloses a welding machine that is used for welding induction welding head of little U pipe and contains it, induction welding head includes: the annular conductor comprises a first U-shaped part and a second U-shaped part, two end parts of the first U-shaped part and two end parts of the second U-shaped part are connected in a one-to-one correspondence mode to form a closed ring, and two positions where the first U-shaped part and the second U-shaped part are connected with input electrodes respectively. The induction welding head with the structure can weld two positions needing to be welded of the small U pipe at one time, and is high in efficiency. The utility model also discloses a welding machine that contains above-mentioned soldered connection.
Description
Technical Field
The utility model relates to a soldered connection that uses among the induction welding and contain its welding machine, in particular to induction welding head that is used for welding little U pipe and contains its welding machine.
Background
Referring to fig. 1, a heat exchanger 100 for a condenser, an evaporator, etc. generally includes a housing 101, and a serpentine pipe is disposed in the housing 101, and cold and hot fluids flow through the inside and outside of the pipe, respectively, so as to exchange heat between the cold and hot fluids. The pipeline is usually formed by connecting a large U pipe 102 and a small U pipe 103, wherein the large U pipe 102 is longer than the small U pipe 103, the large U pipe 102 is arranged in parallel in the shell, the small U pipe 103 is connected to the end part of the large U pipe 102, and the large U pipe 102 is connected in series through the small U pipe 103 to form a continuously communicated pipeline. In order to ensure the sealing and the firm installation, the small U-shaped pipe 103 needs to be welded on the large U-shaped pipe 102, the number of the joints 104 of the small U-shaped pipe 103 and the large U-shaped pipe 102 is two, and the two joints 104 need to be welded.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an induction welding head for welding little U pipe can once weld two positions that need the welded of little U pipe, and efficiency is higher. The utility model discloses still provide a welding machine that has foretell induction welding head that is used for welding little U pipe.
According to the utility model discloses an induction welding head for welding little U pipe of first aspect embodiment, it includes: the annular conductor comprises a first U-shaped part and a second U-shaped part, two end parts of the first U-shaped part and two end parts of the second U-shaped part are connected in a one-to-one correspondence mode to form a closed ring, and two positions where the first U-shaped part and the second U-shaped part are connected with input electrodes respectively.
According to the utility model discloses an induction welding head for welding little U pipe has following beneficial effect at least: when welding, the annular conductor is sleeved outside the small U-shaped pipe to be welded, the first U-shaped part and the second U-shaped part are made to respectively correspondingly wrap two connecting parts of the small U-shaped pipe to be welded, high-frequency current is introduced into the input electrode, and therefore the first U-shaped part and the second U-shaped part generate a changing magnetic field, induced current is generated at the two connecting parts of the small U-shaped pipe to be welded to generate resistance heat, the copper rings sleeved on the small U-shaped pipe in advance are melted, the melted solder fills a pipe seam between the small U-shaped pipe and the large U-shaped pipe, and the welding process is completed after cooling. The induction welding joint with the structure can weld two positions corresponding to the small U pipe at one time, and is high in efficiency.
According to some embodiments of the invention, the first U-shaped portion and the second U-shaped portion each comprise a semicircular portion and two connecting portions, two one ends of the connecting portions are connected to two ends of the semicircular portion, respectively.
According to some embodiments of the invention, the annular conductor is integrally formed.
According to the utility model discloses a welding machine of second aspect embodiment, it includes foretell induction welding head that is used for welding little U pipe, can once weld two places of little U pipe.
According to the utility model discloses a few embodiments, the welding machine still includes frame and four-axis moving platform, induction welding head install in four-axis moving platform, four-axis moving platform install in the frame, four-axis moving platform be provided with three-dimensional removal axle and around three-dimensional removal in the axle remove a axle pivoted axis of rotation so that induction welding head can three-dimensional removal and around one remove the axle and rotate.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a heat exchanger according to an embodiment of the present invention;
fig. 2 is a perspective view of a heat exchanger according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of FIG. 2 at A;
FIG. 4 is a schematic perspective view of a welding machine according to an embodiment of the present invention;
FIG. 5 is an enlarged schematic view at B of FIG. 4;
FIG. 6 is a schematic view of an embodiment of the present invention during welding;
fig. 7 is a cross-sectional view of the structure shown in fig. 5 taken in the direction of C-C.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, which shows a schematic structural principle of a heat exchanger 100, the heat exchanger 100 includes a housing 101, large U tubes 102 and small U tubes 103, the large U tubes 102 are installed in parallel in the housing 101, and the small U tubes 103 are connected to ends of the large U tubes 102 and connect the large U tubes 102 in parallel in series to form a continuously connected pipeline. The junction 104 of the small U tube 103 and the large U tube 102 requires a welding process. Before welding, a copper ring serving as a solder is sleeved on the end part of the small U-shaped pipe 103, and then the small U-shaped pipe 103 is inserted into the end part of the large U-shaped pipe 102. During welding, the copper ring needs to be heated and melted, so that the molten copper fills the assembly gap between the small U tube 103 and the large U tube 102, and the welding is completed.
Referring to fig. 2 and 3, the heat exchanger 100 is a specific structure according to the present invention. Wherein the small U-tubes 103 are concentrated at one end face of the housing 101.
Referring to FIG. 4, a welding machine is shown that includes an induction welding head for welding small U-tubes.
Referring to fig. 5, an induction welding head for welding small U-tubes, comprising: the annular conductor 1, annular conductor 1 include first U-shaped portion 11 and second U-shaped portion 12, and two tip one-to-one of first U-shaped portion 11 links to each other and encloses into closed ring shape with two tip of second U-shaped portion 12, and two positions that first U-shaped portion 11 and second U-shaped portion 12 link to each other are connected with input electrode 2 respectively.
Referring to fig. 6, when welding, the annular conductor 1 is sleeved outside the small U-shaped tube 103 to be welded, the first U-shaped portion 11 and the second U-shaped portion 12 are made to respectively and correspondingly wrap the two joints 104 of the small U-shaped tube 103 to be welded, high-frequency current is introduced into the input electrode 2, so that the first U-shaped portion 11 and the second U-shaped portion 12 generate a changing magnetic field, induction current is generated at the two joints of the small U-shaped tube 103 to be welded to generate resistance heat, a copper ring sleeved in advance on the small U-shaped tube 103 is melted, the melted solder fills a tube gap between the small U-shaped tube 103 and the large U-shaped tube 102, and the welding process is completed after cooling. The induction welding joint with the structure can be used for welding two positions corresponding to the small U pipe 103 at a time, and the efficiency is high.
Referring to fig. 7, in the present embodiment, each of the first U-shaped portion 11 and the second U-shaped portion 12 includes a semicircular portion 13 and two connecting portions 14, and one end of each of the two connecting portions 14 is connected to both ends of the semicircular portion 13. The semicircular part 13 can coaxially surround the end part of the small U-shaped pipe 103, and the welding effect is better. The connecting portion 14 is a straight columnar shape, but may have other shapes.
In this embodiment, the annular conductor 1 is integrally formed, so that the processing is convenient and the power loss is small.
The induction welding joint for welding the small U-shaped pipe is applied to a welding machine, and the efficiency of the welding machine for welding the small U-shaped pipe 103 can be improved.
Referring to fig. 4, in the present embodiment, the welding machine further includes a frame (not shown) and a four-axis moving platform 3, the induction welding head is mounted to the four-axis moving platform 3, the four-axis moving platform 3 is mounted to the frame, and the four-axis moving platform 3 is provided with a three-dimensional moving axis and a rotating axis rotating about one of the three-dimensional moving axis so that the induction welding head can move three-dimensionally and rotate about the one moving axis. The welding machine with the structure can move the induction welding head through the four-axis moving platform 3, so that a plurality of small U-shaped pipes 103 are welded. For some small U-shaped tubes 103, the angular positions are different, and the annular conductor 1 is adjusted in direction by the rotating shaft of the four-axis moving platform 3, so that the welding is carried out adaptively. Of course, in other embodiments, other configurations may be used to move the induction welding head in some applications, such as existing multi-axis industrial robots.
In this embodiment, the four-axis moving platform 3 includes an X-axis linear actuator 31, a Y-axis linear actuator 32, a Z-axis linear actuator 33, and an R-axis rotary actuator 34, the X-axis linear actuator 31 is disposed on the frame, the Y-axis linear actuator 32 is disposed on the X-axis linear actuator 31, the X-axis linear actuator 31 is used for driving the Y-axis linear actuator 32 to move left and right, the Z-axis linear actuator 33 is disposed on the Y-axis linear actuator 32, the Y-axis linear actuator 32 is used for driving the Z-axis linear actuator 33 to move back and forth, the R-axis rotary actuator 34 is disposed on the Z-axis linear actuator 33, the Z-axis linear actuator 33 is used for driving the R-axis rotary actuator 34 to move up and down, an induction welding head is disposed on. The X-axis linear driver 31, the Y-axis linear driver 32, and the Z-axis linear driver 33 may be linear motors or lead screw linear movement stages driven by motors, respectively, and the R-axis rotary driver 34 may be a motor, such as a stepping motor, a servo motor, or the like. There are many four-axis moving platforms 3 having three-dimensional moving function and rotating around a moving axis in the art, and the four-axis moving platforms 3 can be directly assembled according to the need by using the existing mature products or by themselves according to the above-described structure.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (5)
1. An induction welding head for welding small U-tubes, comprising: the annular conductor (1), the annular conductor (1) includes first U-shaped portion (11) and second U-shaped portion (12), two tip of first U-shaped portion (11) with two tip one-to-one links to each other and enclose into closed ring shape of second U-shaped portion (12), two positions that first U-shaped portion (11) and second U-shaped portion (12) link to each other are connected with input electrode (2) respectively.
2. An induction welding head for welding small U-tubes according to claim 1 wherein: the first U-shaped portion (11) and the second U-shaped portion (12) respectively comprise a semicircular portion (13) and two connecting portions (14), and one ends of the two connecting portions (14) are respectively connected with two end portions of the semicircular portion (13).
3. An induction welding head for welding small U-tubes according to claim 1 wherein: the annular conductor (1) is integrally formed.
4. Welding machine, characterized in that it comprises an induction welding head for welding small U-tubes according to any of claims 1 to 3.
5. The welding machine of claim 4, wherein: the welding machine further comprises a rack and a four-axis moving platform (3), the induction welding head is mounted on the four-axis moving platform (3), the four-axis moving platform (3) is mounted on the rack, and the four-axis moving platform (3) is provided with a three-dimensional moving shaft and a rotating shaft rotating around one of the three-dimensional moving shaft so that the induction welding head can move in three dimensions and rotate around the moving shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922178847.XU CN211915809U (en) | 2019-12-06 | 2019-12-06 | Induction welding joint for welding small U-shaped pipe and welding machine comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922178847.XU CN211915809U (en) | 2019-12-06 | 2019-12-06 | Induction welding joint for welding small U-shaped pipe and welding machine comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211915809U true CN211915809U (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922178847.XU Expired - Fee Related CN211915809U (en) | 2019-12-06 | 2019-12-06 | Induction welding joint for welding small U-shaped pipe and welding machine comprising same |
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|---|---|
| CN (1) | CN211915809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111168220A (en) * | 2019-12-06 | 2020-05-19 | 中山市裕隆智能科技有限公司 | Induction welding joint for welding small U-shaped pipe and welding machine comprising same |
-
2019
- 2019-12-06 CN CN201922178847.XU patent/CN211915809U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111168220A (en) * | 2019-12-06 | 2020-05-19 | 中山市裕隆智能科技有限公司 | Induction welding joint for welding small U-shaped pipe and welding machine comprising same |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201113 Termination date: 20211206 |