Novel hot riveting head structure

Abstract

The utility model discloses a novel hot riveting head structure which comprises a body, a guide column and a riveting head are arranged on the upper side and the lower side of the body respectively, a bush is arranged on the peripheral side of the guide column, a through adaptive groove is formed in the position, making contact with the guide column, of the bush, a first through hole is formed in the center of the guide column, and a second through hole is formed in the center of the riveting head. A second through hole matched with the first through hole is formed in the rivet head; and a profiling structure is arranged at the bottom of the rivet head. The hot riveting device is simple in structure, can be installed in a large scale according to the number and positions of riveting points, can counteract up-and-down position deviation through the built-in spring and the oil-free bushing, and is suitable for large-scale hot riveting operation.

Description

Technical Field

[0001] The utility model relates to the technical field of hot riveting head structures, in particular to a novel hot riveting head structure. Background Art

[0002] Plastic hot riveting welding technology is a process that heats the rivet studs of plastic parts to soften the rivet studs at the connection points, and then rivets and cools the softened rivet studs. At present, hot riveting heads are one of the most commonly used devices for heating plastic parts in production, but existing hot riveting heads are difficult to disassemble and are prone to position deviations and uneven riveting point heights. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a new type of hot riveting head structure, which has a simple structure and can be installed in large quantities according to the number and position of riveting points. The upper and lower position deviations can be offset by built-in springs and oil-free bushings, and is suitable for large-scale hot riveting operations.

[0004] In order to solve the above technical problems, the utility model provides a new type of hot rivet head structure, characterized in that it includes a main body, wherein the upper and lower sides of the main body are respectively a guide column and a rivet head, a bushing is arranged around the guide column, a penetrating adapting groove is arranged at the position where the bushing contacts the guide column, a first through hole is arranged at the center of the guide column, and a second through hole adapted to the first through hole is arranged on the rivet head; and a contoured structure is arranged at the bottom of the rivet head.

[0005] Furthermore, the rivet head itself is a cylindrical structure, and the bottom is a truncated cone structure.

[0006] Furthermore, a linear structure is provided around the rivet head.

[0007] Furthermore, a third through hole is provided on the rivet head at the position of the linear structure, and an internal thread is provided in the through hole.

[0008] Furthermore, the first through hole and the second through hole are both through holes.

[0009] Furthermore, the bushing is made of oil-free bushing material.

[0010] Beneficial effects of the utility model: the structure is applied to hot riveting equipment, the structure heats the rivet head through an electric heating rod, senses the temperature through a built-in thermocouple, and automatically stops heating when the set temperature is reached. The hot riveting equipment drives the structure to move up and down, presses the riveting points for hot riveting, and the first through hole can be connected to a blow pipe to cool the rivet head, so that the riveting effect is better. Due to the convenience of installation and disassembly, the structure can be installed in large quantities according to the number and position of the riveting points. The spring and oil-free bushing built into the first through hole can offset the upper and lower position deviations, which is suitable for large-scale hot riveting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Explanation of the numbers in the figure: 1. bushing; 2. guide column; 3. first through hole; 4. rivet head; 5. third through hole; 6. contoured structure. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0014] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0015] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0016] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0018] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0019] Reference Figure 1 As shown, an embodiment of a new type of hot rivet head structure of the utility model includes a main body, wherein the upper and lower sides of the main body are respectively a guide column 2 and a rivet head 4, a bushing 1 is arranged on the peripheral side of the guide column 2, a through adapting groove is arranged at the position where the bushing 1 contacts the guide column 2, a first through hole 3 is arranged at the center of the guide column 2, a second through hole adapted to the first through hole 3 is arranged on the rivet head 4, and both the first through hole 3 and the second through hole are through holes; a profiling structure 6 is arranged at the bottom of the rivet head 4.

[0020] A guide column 2 for fixing the oil-free bushing 1, a first through hole 3 for installing a heating rod and a buffer spring, and a third through hole 5 for fixing the heating rod.

[0021] This structure is applied to hot riveting equipment. The structure heats the rivet head 4 through an electric heating rod, senses the temperature through a built-in thermocouple, and automatically stops heating when the set temperature is reached. The hot riveting equipment drives the structure to move up and down, compresses the riveting points for hot riveting, and the first through hole 3 can be connected to a blow pipe to cool the rivet head 4 to achieve a better riveting effect. Due to the convenience of installation and disassembly, the structure can be installed in large quantities according to the number and position of the riveting points. The spring and oil-free bushing 1 built into the first through hole 3 can offset the upper and lower position deviations, which is suitable for large-scale hot riveting operations.

[0022] The rivet head 4 itself is a cylindrical structure, and the bottom is a truncated cone structure, which is convenient for installation and disassembly; a linear structure is arranged on the circumference of the rivet head 4, and a third through hole 5 is arranged on the rivet head 4 at the position of the linear structure, and an internal thread is arranged in the through hole. The internal thread facilitates the rotation installation of the outer fixed shaft and is used to fix the internal heating rod.

[0023] Bushing 1 is made of oil-free bushing material and is a high-strength brass bearing lubricated by oil gushing from the oil groove. This product has the functions of a traditional tin bronze bearing. Due to the use of high-strength brass, its HB hardness is doubled, so when used in low-speed situations, the life of this product can be doubled compared to that of a general bronze sleeve. In addition, it has a large bearing pressure and can be used in heavy-load situations.

[0024] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. A new type of hot riveting head structure, characterized in that: The invention comprises a main body, wherein the upper and lower sides of the main body are respectively a guide column (2) and a rivet head (4); a bushing (1) is arranged around the guide column (2); a through-fitting groove is arranged at the position where the bushing (1) contacts the guide column (2); a first through hole (3) is arranged at the center of the guide column (2); a second through hole (4) is arranged on the rivet head (4) and is fitted with the first through hole (3); and a contoured structure (6) is arranged at the bottom of the rivet head (4).

2. The new hot riveting head structure according to claim 1 is characterized in that: The rivet head (4) itself is a cylindrical structure, and the bottom is a truncated cone structure.

3. The new hot riveting head structure according to claim 1 is characterized in that: A linear structure is arranged on the peripheral side of the rivet head (4).

4. The new hot riveting head structure as claimed in claim 3 is characterized in that: The rivet head (4) is provided with a third through hole (5) at the position of the linear structure, and an internal thread is provided in the through hole.

5. The new hot riveting head structure according to claim 1 is characterized in that: The first through hole (3) and the second through hole are both through holes.

6. The new hot riveting head structure according to claim 1 is characterized in that: The material of the bushing (1) is oil-free bushing (1) material.

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