A hot riveting mechanism with cooling function

Abstract

The present application relates to the technical field of machining, in particular to a hot riveting welding mechanism with cooling function. The present application integrates a cooling mechanism in the hot riveting welding mechanism, realizes the cooling function under the premise of slightly increasing the equipment volume, and does not need to additionally set a cooling mechanism outside the hot riveting welding mechanism. A heating rod wire and an air source are simultaneously connected in a sleeve through a tee pipe; a flow guide groove is arranged at the threaded connection between a fixed pipe and a first connecting pipe, and the cavity where a welding head is located and the cavity in the sleeve are communicated, so that the gas of the air source flows from the sleeve to the welding head through the flow guide groove, and the cooling of the plastic workpiece is realized. In addition, the installation of the mechanism is realized through the step on the sleeve and the second connecting pipe in threaded connection, and the operation is convenient. By using the present application, additional space can be saved on the hot riveting welding equipment, and the setting and movement of the hot riveting welding mechanism are facilitated, which is conducive to improving the production efficiency.

Description

Technical Field

[0001] This invention relates to the field of machining technology, specifically to a hot riveting and welding mechanism with a cooling function. Background Technology

[0002] After hot riveting welding, the welding area between the plastic workpieces remains at a high temperature and is still molten. Under natural cooling conditions, the welded area cannot cool and solidify quickly, causing misalignment between the two workpieces and affecting the weld quality and structural strength of the product. Generally, to ensure weld quality, a cooling mechanism is installed outside the hot riveting welding equipment to cool the welding area of ​​the plastic workpieces, allowing for rapid cooling and solidification, thus ensuring the strength of the weld. However, installing a cooling mechanism outside the hot riveting welding equipment occupies additional equipment space, causing inconvenience and other impacts on the welding process. Summary of the Invention

[0003] The purpose of this invention is to provide a solution to the problems mentioned in the background section that cannot be solved by the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a hot riveting welding mechanism with cooling function, comprising a sleeve, wherein the front end of the sleeve is provided with an adjustable first connecting pipe and the rear end is provided with a tee pipe, and the cavities of the three are in a connected state; the first connecting pipe is provided with a fixed pipe and a welding head inside, and the rear end of the welding head is connected to the front end of the fixed pipe, the welding part of the front end of the welding head extends out of the front end of the first connecting pipe, and the rear end of the fixed pipe is connected to the interior of the first connecting pipe through a threaded structure;

[0005] The rear end of the welding head is a cavity, which is connected to the cavity of the fixed tube and the cavity of the sleeve. A heating rod is provided inside the cavity of the welding head. One end of the heating rod is connected to a heating rod wire, which passes through the sleeve and the three-way pipe and extends to the outside of the mechanism. The other end of the three-way pipe is connected to a gas source. A guide groove is provided at the connection between the fixed tube and the first connecting tube, through which the gas in the sleeve can flow to the welding head.

[0006] Preferably, the guide groove is located at the external thread of the fixed pipe.

[0007] Preferably, the guide groove is parallel to the axis of the fixed pipe.

[0008] Preferably, the fixed tube has four evenly distributed guide grooves at its external thread.

[0009] Preferably, the first connecting pipe and the sleeve are connected by a threaded structure, and a fastening nut is provided at the connection.

[0010] Preferably, the tee is a Y-type tee.

[0011] Preferably, one end of the tee through which the heating rod wire passes is provided with a sealing plug.

[0012] Preferably, a second connecting pipe is provided between the sleeve and the tee pipe, wherein the rear end of the sleeve is provided with an external thread and the front end of the second connecting pipe is provided with a matching internal thread, and the two are connected by the thread structure; the sleeve is embedded in the fixing plate, and a step is provided in front of the external thread at the rear end of the sleeve, and the sleeve is fixedly installed on the fixing plate by the step and the second connecting pipe.

[0013] Preferably, the contact surfaces of the sleeve and the fixing plate, as well as the contact surfaces of the second connecting pipe and the fixing plate, are provided with flat gaskets, and a spring gasket is also provided between the flat gasket and the second connecting pipe.

[0014] Compared with existing technologies, the advantages of this invention are: This invention integrates a cooling mechanism into the hot riveting welding mechanism, achieving cooling functionality with a slight increase in equipment size. A heating rod wire and a gas source are simultaneously connected within the sleeve via a three-way pipe; a guide groove is provided at the threaded connection between the fixed pipe and the first connecting pipe, connecting the cavity where the welding head is located and the cavity inside the sleeve, allowing gas from the gas source to flow from inside the sleeve to the welding head through the guide groove, thus cooling the plastic workpiece. Furthermore, the mechanism is installed conveniently via a step on the sleeve and a threaded second connecting pipe. By using this invention, space can be saved on the hot riveting welding equipment for an additional cooling mechanism, and the installation and movement of the hot riveting welding mechanism are facilitated, thereby improving production efficiency. Attached Figure Description

[0015] Figure 1 for Figure 2 Sectional view at point AA;

[0016] Figure 2 This is a front view of the present invention;

[0017] Figure 3 for Figure 1 Enlarged view at point I;

[0018] Figure 4 for Figure 1 A magnified view at point P in the middle;

[0019] Figure 5 This is a three-dimensional structural view of the present invention;

[0020] Figure 6 This is a schematic diagram of the structure of the fixing tube and welding head inside the first connecting tube of the present invention.

[0021] In the diagram: 1. Sleeve; 2. Second connecting pipe; 3. T-connector; 4. Sealing plug; 5. Heating rod wire; 6. First connecting pipe; 7. Fixing pipe; 8. Heating rod; 9. Fastening nut; 10. Flat washer; 11. Spring washer; 12. Fixing plate; 13. Welding head; 14. Welding part; 15. Guide channel. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] This invention provides a hot riveting and welding mechanism with a cooling function, see attached figure. Figure 1 To be continued Figure 5 The main components include a sleeve 1, a first connecting pipe 6, a tee pipe 3, a welding head 13, a fixing pipe 7, a heating rod 8, and a heating rod wire 5, with the sleeve 1 serving as the main body of the entire mechanism. The welding head 13 is located at the front end of the sleeve 1. The electrical energy transmitted by the heating rod wire 5 is converted into heat energy through the heating rod 8 embedded at the rear end, and then the heat energy is transferred to the welding part 14 at the front end of the welding head 13, thereby performing hot riveting welding on the plastic workpiece.

[0024] This invention integrates a cooling mechanism into the hot riveting welding mechanism, achieving cooling functionality with a slight increase in equipment size. The cooling function involves connecting the sleeve 1 to a gas source, allowing the incoming gas to flow to the welding head 13. This gas is then sprayed onto the welding area of ​​the hot-riveted plastic workpiece, rapidly reducing the temperature of the welding area and causing it to solidify. Therefore, this invention integrates a cooling mechanism with almost no increase in overall equipment size, resulting in a more compact structure and greater convenience and efficiency in equipment layout and use.

[0025] A tee pipe 3 is provided at the rear end of the sleeve 1. One end of the tee pipe 3 is connected to the sleeve 1, the other end is connected to the gas source, and the other end is used to accommodate the heating rod wire 5. The welding head 13 is installed at the front end of the sleeve 1 through the first connecting pipe 6 and the fixing pipe 7. The welding head 13 is fixedly installed at the front end of the fixing pipe 7. The rear end of the fixing pipe 7 is connected to the inside of the first connecting pipe 6 through a threaded structure. The guide groove 15 provided at the threaded connection between the fixing pipe 7 and the first connecting pipe 6 allows the gas inside the sleeve 1 to flow through the connection between the fixing pipe 7 and the first connecting pipe 6 to the welding head 13, thereby cooling the plastic workpiece.

[0026] The guide groove 15 can be disposed at the external thread of the fixed pipe 7 and the internal thread of the first connecting pipe 6, as shown in the attached figure. Figure 6Preferably, the flow guide groove 15 is disposed at the external thread of the fixed pipe 7. Disposing the flow guide groove 15 at the external thread of the fixed pipe 7, compared to disposing it at the internal thread of the first connecting pipe 6, reduces processing difficulty, improves processing quality, and lowers processing costs. The flow guide groove 15 is parallel to the axis of the fixed pipe 7, which facilitates rapid gas flow and is also convenient for processing. (See attached diagram) Figure 6 The dashed line in the diagram represents the flow path of the gas.

[0027] In order to ensure that the cooling gas can maintain a certain flow rate and pressure when it reaches the welding part 14 of the welding head 13, the rear end of the first connecting pipe 6 extends all the way to the welding part 14 of the welding head 13. This ensures that the cooling gas can cool the plastic workpiece under a certain flow rate and pressure, better remove heat, and thus ensure a good cooling effect.

[0028] In theory, the more guide grooves 15 are set, the more gas can pass through, but the connection between the fixed pipe 7 and the first connecting pipe 6 will be less stable. Therefore, preferably, the fixed pipe 7 has four evenly distributed guide grooves 15 at its external thread, which can balance the strength of the connection and the number of guide grooves 15.

[0029] Reference Appendix Figure 4 The first connecting pipe 6 can be adjusted in position relative to the sleeve 1, and can be adjusted according to the actual product to be hot-riveted and welded, thus having good adaptability. Preferably, the first connecting pipe 6 and the sleeve 1 are connected by a threaded structure, and a fastening nut 9 is provided at the connection. By rotating the first connecting pipe 6, the position of the welding head 13 relative to the sleeve 1 can be adjusted, and then the connection between the first connecting pipe 6 and the sleeve 1 is fixed by the fastening nut 9, preventing the first connecting pipe 6 from rotating arbitrarily and affecting the welding quality.

[0030] Reference Appendix Figure 3 To facilitate wiring and ensure smooth gas flow into the sleeve 1, a Y-shaped tee is preferably used. To ensure that the gas still maintains a certain flow rate at the welding head 13, it is necessary to maintain a certain gas pressure inside the sleeve 1 as much as possible. Therefore, preferably, a sealing plug 4 is provided at one end of the tee 3 through which the heating rod wire 5 passes, which can maintain the gas pressure inside the sleeve 1 to a certain extent.

[0031] The installation of this invention mainly involves mounting the sleeve 1 as the main structural component onto the fixed plate 12 of the equipment. Preferably, a second connecting pipe 2 is provided between the sleeve 1 and the tee pipe 3. The rear end of the sleeve 1 has an external thread, and the front end of the second connecting pipe 2 has a matching internal thread. The two are connected through the threaded structure. The sleeve 1 is embedded in the fixed plate 12, and a step is provided in front of the external thread at the rear end of the sleeve 1. The sleeve 1 is fixedly mounted on the fixed plate 12 through this step and the second connecting pipe 2. The sleeve 1 and the second connecting pipe 2 are connected by a threaded structure, similar to the connection between a nut and a bolt. The second connecting seat and the step of the sleeve 1 apply force to the upper and lower sides of the fixed plate 12, thereby locking the entire mechanism onto the fixed plate 12.

[0032] The sleeve 1 and the second connecting pipe 2 are connected by a threaded structure, which facilitates the installation, disassembly and adjustment by the staff. In addition, a gap is provided between the sleeve 1 and the fixed plate 12, so that the sleeve 1 has a certain degree of adjustability in position and can be finely adjusted by the staff according to different products and processing requirements, thereby improving the flexibility of the mechanism.

[0033] Reference Appendix Figure 3 To prevent damage to the contact points between the sleeve 1 and the second connecting pipe 2 and the fixing plate 12, flat gaskets 10 are provided on both the contact surfaces of the sleeve 1 and the fixing plate 12 and the contact surfaces of the second connecting pipe 2 and the fixing plate 12 to increase the contact area. However, since the flat gasket 10 does not have an anti-loosening function, a spring gasket 11 is also provided between the second connecting pipe 2 and the flat gasket 10.

[0034] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A hot riveting and welding mechanism with cooling function, comprising a sleeve (1), characterized in that, The sleeve (1) has an adjustable first connecting pipe (6) at the front end and a three-way pipe (3) at the rear end, and the cavities of the three are connected. The first connecting pipe (6) has a fixed pipe (7) and a welding head (13) inside, and the rear end of the welding head (13) is connected to the front end of the fixed pipe (7). The welding part (14) at the front end of the welding head (13) extends out of the front end of the first connecting pipe (6). The rear end of the fixed pipe (7) is connected to the interior of the first connecting pipe (6) through a threaded structure. The rear end of the welding head (13) is a cavity, which is connected to the cavity of the fixed tube and the cavity of the sleeve (1). A heating rod (8) is provided in the cavity of the welding head (13). The heating rod (8) is connected to one end of the heating rod wire (5). The heating rod wire (5) passes through the sleeve (1) and the three-way pipe (3) and extends to the outside of the mechanism. The other end of the three-way pipe (3) is connected to the gas source. A guide groove (15) is provided at the connection between the fixed tube (7) and the first connecting tube (6). The gas in the sleeve (1) can flow to the welding head (13) through the guide groove (15). The guide groove (15) is provided at the external thread of the fixed pipe (7); the guide groove (15) is parallel to the axis of the fixed pipe (7); the rear end of the first connecting pipe (6) extends to the welding part (14) of the welding head (13); the first connecting pipe (6) and the sleeve (1) are connected by a threaded structure, and a fastening nut (9) is provided at the connection. A second connecting pipe (2) is provided between the sleeve (1) and the tee pipe (3), wherein the rear end of the sleeve (1) is provided with an external thread, and the front end of the second connecting pipe (2) is provided with a matching internal thread, and the two are connected by the thread structure; the guide groove (15) is provided on the external thread of the fixed pipe (7); the sleeve (1) is embedded and installed on the fixed plate (12), and a step is provided in front of the external thread at the rear end of the sleeve (1), and the sleeve (1) is fixedly installed on the fixed plate (12) by the step and the second connecting pipe (2); Flat gaskets (10) are provided on the contact surfaces of the sleeve (1) and the fixing plate (12) and the contact surfaces of the second connecting pipe (2) and the fixing plate, and spring gaskets (11) are also provided between the flat gaskets (10) and the second connecting pipe (2).

2. The hot riveting and welding mechanism with cooling function according to claim 1, characterized in that: The fixed tube (7) has four evenly distributed guide grooves (15) at its external thread.

3. The hot riveting and welding mechanism with cooling function according to claim 1, characterized in that: The tee pipe (3) is a Y-type tee pipe (3).

4. A hot riveting and welding mechanism with cooling function according to claim 1, characterized in that: The heating rod wire (5) passes through a three-way pipe (3) with a sealing plug (4) at one end.

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