Lamp filament bending wrench

Abstract

The utility model relates to a filament bending wrench, the filament bending wrench comprises a wrench and a bending column, the front end of the wrench is provided with a vertically through positioning hole, and the wrench located at the inner side of the positioning hole is provided with a limiting hole; the bending column comprises a rotating part and a limiting part, and the rotating part is rotationally connected with the limiting hole through a bearing set. In the bending process, the bending column is tightly attached to the lamp filament and is driven by friction force to rotate smoothly, tight attachment in the whole bending process is guaranteed, extra acting force except shearing force is not generated on the lamp filament, and smooth deformation of the lamp filament is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of filament processing; specifically, the utility model relates to a filament bending wrench. Background Art

[0002] Regarding the process of bending the filament, the current process of twisting and bending the filament requires heating the filament to a high temperature and then bending it into a U shape using a filament wrench. However, the bending point of the filament bending wrench currently on the market is a fixed high-temperature resistant stainless steel column. Although it can withstand high temperatures, compared with the softer filament at high temperatures, the huge friction generated by the rotation during the bending action can easily cause the filament to stretch and break internally, resulting in the scrapping of the filament. Utility Model Content

[0003] The purpose of the utility model is to provide a filament bending wrench, which can solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a filament bending wrench, wherein the filament bending wrench comprises a wrench and a bending column.

[0005] The front end of the wrench is provided with a positioning hole which passes through from top to bottom, and the wrench located inside the positioning hole is provided with a limiting hole;

[0006] The bending column comprises a rotating part and a limiting part, and the rotating part is rotatably connected to the limiting hole through a bearing group.

[0007] In the filament bending wrench as described above, optionally, the bearing group consists of two bearings.

[0008] In the filament bending wrench as described above, optionally, the bearing is a ball bearing.

[0009] In the filament bending wrench as described above, optionally, the wrench is provided with a handle at the end away from the positioning hole.

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

[0011] According to the filament bending wrench of the utility model, during the bending process, the bending column and the filament are tightly fitted and smoothly rotated under the drive of friction, thereby ensuring tight fitting during the entire bending process, and no additional force other than shear force is generated on the filament, thereby ensuring smooth deformation of the filament. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a top view of the filament bending wrench of the utility model;

[0013] Figure 2 It is a front view of the filament bending wrench of the utility model;

[0014] Figure 3 It is a three-dimensional diagram of the filament bending wrench of the utility model.

[0015] In the figure: 1. wrench; 2. bending column; 3. processing seat; 4. positioning rod; 5. filament. 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] It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. The terms "first", "second" and similar words used in the description of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components, and therefore cannot be understood as limitations on the present invention.

[0018] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0019] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0020] like Figure 1-3 As shown, the filament bending wrench includes a wrench 1 and a bending column 2. The front end of the wrench 1 is provided with a positioning hole that runs through the upper and lower parts. The positioning hole of the wrench 1 matches the positioning rod 4 on the processing seat 3. The wrench 1 is sleeved on the positioning rod 4 on the processing seat 3 through the positioning hole, and the wrench 1 can rotate around the positioning rod 4.

[0021] A limiting hole is provided on the wrench 1 located inside the positioning hole; the bending column 2 includes a rotating portion and a limiting portion, and the rotating portion is rotatably connected to the limiting hole through a bearing group. During the rotation of the wrench 1 around the positioning rod 4, the bending column 2 realizes synchronous rotation through the bearing group, and the limiting portion of the bending column 2 abuts against the filament 5 to bend the filament 5. Specifically, the bending column 2 fits tightly with the filament 5 and rotates smoothly driven by the friction force, ensuring a tight fit during the entire bending process, and does not generate additional force on the filament 5 except the shear force, thereby ensuring smooth deformation of the filament 5.

[0022] Furthermore, the bearing group is composed of two bearings, and the bearings are ball bearings, one of which is located at the upper end of the rotating part of the bending column 2, and the other ball bearing is located at the lower end of the rotating part of the bending column 2.

[0023] Furthermore, a handle is provided at the end of the wrench 1 away from the positioning hole for user convenience.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filament bending wrench, characterized in that: The filament bending wrench comprises a wrench (1) and a bending column (2). The front end of the wrench (1) is provided with a positioning hole which passes through from top to bottom, and a limiting hole is provided on the wrench (1) located inside the positioning hole; The bending column (2) comprises a rotating part and a limiting part, and the rotating part is rotatably connected to the limiting hole through a bearing group.

2. The filament bending wrench according to claim 1, characterized in that: The bearing group consists of two bearings.

3. The filament bending wrench according to claim 2, characterized in that: The bearing is a ball bearing.

4. The filament bending wrench according to claim 1, characterized in that: The wrench (1) is provided with a handle at the end away from the positioning hole.

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