Hot rivet welding joint

Abstract

The utility model discloses a hot riveting welding joint, which relates to the technical field of hot riveting machine welding joints and comprises a heating tube, a hollow welding head, a guide rod and a guide sleeve, an outer sleeve is sleeved on the outer side of the guide sleeve, and a connecting column block is rotatably mounted on the inner side of the top of the outer sleeve. A buffer spring is arranged on the inner side of the outer sleeve and located between the guide sleeve and the connecting column block, and the buffer spring is used for buffering impact borne by the welding head. By arranging the guide rod, the guide sleeve, the outer sleeve and the buffer spring, elastic buffering of the welding head can be achieved, compared with a traditional hard pressing structure, the effect is better, the service life of the welding head is longer, and through the hollow structure of the connector rod, the connecting column block, the outer sleeve, the guide sleeve 6, the guide rod, the heating pipe and the welding head, the welding head can be heated more stably. Cooling airflow can directly enter the inner cavity of the welding head to cool and solidify the riveting column, coaxial blowing is achieved, and compared with traditional paraxial blowing, the cooling effect is better and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of hot riveting machine welding joints, in particular to hot riveting welding joints. Background Art

[0002] The hot riveting machine uses electric heating to transfer the heat of the heating plate to the hot riveting head. The hot riveting head heats the rivet column to melt it, and then blows air to cool and solidify it to form a rivet head and fix the product. It is mainly used for hot welding of rivet columns of various plastic parts.

[0003] The welding heads of existing hot riveting machines are mostly fixedly installed. Therefore, when the hot riveting machine moves down to make the welding head contact the rivet column, a hard collision will occur. After a period of use, the welding head will be deformed and damaged, resulting in a shortened service life of the welding head. At the same time, the cooling air of the traditional hot riveting machine is blown by a separate air pipe next to the welding head, and the cooling effect is slow. Based on this, a hot riveting welding head is provided. Summary of the invention

[0004] The purpose of the utility model is to provide a thermal riveting joint in order to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hot riveting welding joint, comprising a heating tube, the bottom of the heating tube is threadedly connected with a hollow welding head, a guide rod is rotatably installed on the inner side of the top of the heating tube, the top of the guide rod protrudes to the top of the heating tube and is fixedly connected with a guide sleeve, the outer side of the guide sleeve is sleeved with an outer sleeve, a connecting column block is rotatably installed on the inner side of the top of the outer sleeve, a buffer spring is arranged on the inner side of the outer sleeve between the guide sleeve and the connecting column block, and the buffer spring is used to provide buffering for the impact on the welding head;

[0006] A joint rod is fixedly connected to the top of the connecting column block, a threaded groove is arranged on the outer side of the joint rod, the outer side of the threaded groove is threadedly connected to a locking nut, two gaskets are sleeved on the outer side of the threaded groove below the locking nut, the threaded groove is fixedly mounted on the mounting plate on the hot riveting machine through the locking nut, and the two gaskets are distributed at the upper and lower ends of the mounting plate.

[0007] As a further solution of the utility model: the joint rod, connecting column block, guide sleeve, guide rod, and heating tube are all hollow structures, and the top of the joint rod is connected to the external air pipe to provide cooling and blowing operation for the interior of the welding head.

[0008] As a further solution of the utility model: a plurality of exhaust holes are evenly opened on the outer side of the welding head, and the exhaust holes are used to provide an exhaust channel for the airflow blown into the interior of the welding head.

[0009] As a further solution of the utility model: the outer side of the welding head is located below the heating tube and is threadedly connected with an adjusting nut, and the adjusting nut is fitted to the bottom of the heating tube.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] By arranging the guide rod, the guide sleeve, the outer sleeve and the buffer spring, the elastic buffering of the welding head can be achieved, which is better than the traditional hard pressing structure and has a longer service life of the welding head. In addition, through the hollow structure of the joint rod, the connecting column block, the outer sleeve, the guide sleeve 6, the guide rod, the heating tube and the welding head, the cooling air flow can directly enter the inner cavity of the welding head to cool and solidify the rivet column, thereby realizing coaxial air blowing. Compared with the traditional side-axis air blowing, the cooling effect is better and faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a structural perspective view of the utility model;

[0014] Figure 3 For the utility model Figure 1 Enlarged view of position A in the middle.

[0015] In the figure: 1. heating tube; 2. welding head; 3. adjusting nut; 4. exhaust hole; 5. guide rod; 6. guide sleeve; 7. outer sleeve; 8. connecting column block; 9. buffer spring; 10. connecting rod; 11. threaded groove; 12. locking nut; 13. gasket. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figures 1 to 3 In the embodiment of the utility model, the hot riveting welding joint comprises a heating tube 1, the bottom of the heating tube 1 is threadedly connected with a hollow welding head 2, a guide rod 5 is rotatably installed on the inner side of the top of the heating tube 1, the top of the guide rod 5 protrudes to the top of the heating tube 1 and is fixedly connected with a guide sleeve 6, the outer side of the guide sleeve 6 is sleeved with an outer sleeve 7, a connecting column block 8 is rotatably installed on the inner side of the top of the outer sleeve 7, and a buffer spring 9 is arranged on the inner side of the outer sleeve 7 between the guide sleeve 6 and the connecting column block 8, and the buffer spring 9 is used to provide buffering for the impact on the welding head 2;

[0018] A joint rod 10 is fixedly connected to the top of the connecting column block 8, and a thread groove 11 is arranged on the outside of the joint rod 10. The outside of the thread groove 11 is threadedly connected to a locking nut 12. Two washers 13 are sleeved on the outside of the thread groove 11 and located below the locking nut 12. The thread groove 11 is fixedly installed with the mounting plate on the hot riveting machine through the locking nut 12, and the two washers 13 are distributed at the upper and lower ends of the mounting plate.

[0019] The joint rod 10, the connecting column block 8, the guide sleeve 6, the guide rod 5, and the heating tube 1 are all hollow structures. The top of the joint rod 10 is connected to the external air pipe to provide cooling and blowing operation for the inside of the welding head 2;

[0020] A plurality of exhaust holes 4 are evenly arranged on the outer side of the welding head 2 , and the exhaust holes 4 are used to provide an exhaust channel for the airflow blown into the welding head 2 .

[0021] In this embodiment: when installing this welding head, first install a gasket 13 on the outside of the joint rod 10, then pass the joint rod 10 through the mounting plate on the hot riveting machine, and then install another gasket 13 and a locking nut 12 in sequence to achieve installation and fixation, and then connect the external air pipe to the top of the joint rod 10;

[0022] When in use, the hot riveting machine moves downward to fit the welding head 2 with the rivet column, and at the same time, the heating tube 1 is connected to an external power supply for heating and transfers heat to the rivet column through the welding head to make it melt, and then the external air pump blows air, so that the airflow enters the inner cavity of the welding head 2 along the joint rod 10, the connecting column block 8, the outer sleeve 7, the guide sleeve 6, the guide rod 5, and the inner cavity of the heating tube 1, and the airflow cools and solidifies the rivet column to form a rivet head and fix the product equipment, and the airflow after heat exchange is discharged through the exhaust hole 4. Through this coaxial blowing function, the cooling effect is better and faster than the traditional side-axis blowing;

[0023] In addition, the welding head 2 has an upward contraction function with the cooperation of the reset spring 9. When the welding head 2 moves down and fits the rivet column, elastic buffering can be achieved. Compared with the traditional hard pressing structure, the effect is better and the service life of the welding head is longer.

[0024] Please refer to Figures 1 to 3 The outer side of the welding head 2 is located below the heating tube 1 and is threadedly connected with an adjusting nut 3, and the adjusting nut 3 is attached to the bottom of the heating tube 1.

[0025] In this embodiment, the threaded connection between the welding head 2 and the heating tube 1 allows the height of the welding head to be finely adjusted, and the installation position of the welding head 2 can be kept fixed by adjusting the nut 3 to squeeze and fit the bottom of the heating tube 1.

[0026] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat riveting joint, comprising a heating tube (1), characterized in that: The bottom of the heating tube (1) is threadedly connected to a hollow welding head (2); a guide rod (5) is rotatably mounted on the inner side of the top of the heating tube (1); the top of the guide rod (5) protrudes above the heating tube (1) and is fixedly connected to a guide sleeve (6); an outer sleeve (7) is sleeved on the outer side of the guide sleeve (6); a connecting column block (8) is rotatably mounted on the inner side of the top of the outer sleeve (7); a buffer spring (9) is arranged on the inner side of the outer sleeve (7) between the guide sleeve (6) and the connecting column block (8); the buffer spring (9) is used to provide buffering for impact on the welding head (2); A joint rod (10) is fixedly connected to the top of the connecting column block (8); a thread groove (11) is arranged on the outside of the joint rod (10); the outside of the thread groove (11) is threadedly connected to a locking nut (12); two washers (13) are sleeved on the outside of the thread groove (11) and located below the locking nut (12); the thread groove (11) is fixedly mounted on a mounting plate on the hot riveting machine via the locking nut (12); and the two washers (13) are distributed at the upper and lower ends of the mounting plate.

2. The heat riveting welding joint according to claim 1, characterized in that: The joint rod (10), the connecting column block (8), the guide sleeve (6), the guide rod (5), and the heating tube (1) are all hollow structures, and the top of the joint rod (10) is connected to an external air pipe to provide cooling and blowing operations for the interior of the welding head (2).

3. The heat riveting joint according to claim 2, characterized in that: A plurality of exhaust holes (4) are evenly arranged on the outer side of the welding head (2), and the exhaust holes (4) are used to provide exhaust channels for the airflow blown into the interior of the welding head (2).

4. The heat riveting welding joint according to claim 1, characterized in that: The outer side of the welding head (2) is located below the heating tube (1) and is threadedly connected with an adjusting nut (3), and the adjusting nut (3) is fitted to the bottom of the heating tube (1).

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