阅读说明：本技术 一种门铰链型钢精轧装置 (Door hinge type steel finish rolling device ) 是由 郭好强 马会民 吴佳帆 邢洪波 于希强 悦立伟 于 2021-07-30 设计创作，主要内容包括：本发明公开了一种门铰链型钢精轧装置,包括门铰链型钢和三个轧辊,三个所述轧辊的回转轴线共面,且其中两个所述轧辊的回转轴线具有一定角度；三个所述轧辊的外表面两两相互压紧形成与所述门铰链型钢形状相适应配的闭口孔型。门铰链型钢精轧装置的轧辊一与轧辊二形成夹角轧制,两个轧辊的轧制分力得以部分抵消,作用到轧辊三上的轧制力得以减少,且三个回转轴线共面,形成闭口孔型,可对门铰链型钢进行精密闭口冷轧,可对门铰链型钢的尺寸修正,保证了尺寸精度,无飞边现象,为实现后序自动化加工提供技术支持,操作方便,省工省时。(The invention discloses a finish rolling device for door hinge section steel, which comprises door hinge section steel and three rollers, wherein the rotation axes of the three rollers are coplanar, and the rotation axes of the two rollers have a certain angle; the outer surfaces of the three rollers are mutually compressed pairwise to form a closed hole pattern matched with the shape of the door hinge section steel. The first roller of the door hinge type steel finish rolling device and the second roller form an included angle for rolling, rolling component forces of the two rollers are partially offset, rolling force acting on the third roller is reduced, three rotation axes are coplanar, a closed hole pattern is formed, precise closed cold rolling can be carried out on door hinge type steel, the size of the door hinge type steel can be corrected, the size precision is guaranteed, no flash phenomenon exists, technical support is provided for realizing subsequent automatic processing, the operation is convenient, and labor and time are saved.)

1. The finish rolling device for the door hinge type steel comprises the door hinge type steel and is characterized by further comprising three rollers, wherein the rotating axes of the three rollers are coplanar, and the rotating axes of the two rollers have a certain angle;

the outer surfaces of the three rollers are mutually compressed pairwise to form a closed hole pattern matched with the shape of the door hinge section steel.

2. The door hinge type steel finishing rolling device as claimed in claim 1, wherein the door hinge type steel finishing rolling device comprises a first roller, a second roller and a third roller, and the first roller and the second roller have a certain angle with a rotation axis of the second roller.

3. The finish rolling device for the door hinge type steel as claimed in claim 1, wherein the outside of the roller III is provided with an inverted V-shaped structure comprising a V-shaped surface A and a V-shaped surface B;

one surface A of the first roller and two surfaces B of the second roller are respectively pressed with the V-shaped surface A and the V-shaped surface B, and the end surface of the first roller is pressed with the two surfaces A of the first roller.

4. The finish rolling device for door hinge section steel of claim 1, wherein the shape of the step surface between the roller surface a and the roller surface B is adapted to the outer surface a of the door hinge section steel.

5. The finish rolling device for door hinge section steel of claim 1, wherein the shape of the second roller between the two roller surfaces A and the two roller surfaces B is adapted to the outer surface B of the door hinge section steel.

6. The finish rolling device for door hinge section steel of claim 1, wherein the shape of the V-shaped surface A of the roller III and the shape of the V-shaped surface B of the roller III are adapted to the inner surface of the door hinge section steel.

7. The finish rolling apparatus for door hinge type steel according to claim 1, wherein the two faces a of the first roller are perpendicular to a rotation axis of the first roller.

8. The finish rolling apparatus for door hinge type steel according to claim 1, wherein an end surface of the first roller is perpendicular to a rotation axis of the first roller.

9. The finish rolling device for door hinge section steel of claim 1, wherein a rotation axis of the first roller is parallel to an outer face A of the door hinge section steel.

10. The finish rolling device for door hinge type steel according to claim 1, wherein the first roller, the second roller and the third roller are respectively arranged on a first roller shaft, a second roller shaft and a third roller shaft;

the rotating speeds of the first roller, the second roller and the third roller can be adjusted.

Technical Field

The invention relates to the technical field of profile steel finish machining equipment, in particular to a door hinge profile steel finish rolling structure.

Background

The automobile door hinge is a door hinge in popular terms, and mainly has the function of connecting an automobile door and an automobile body, keeping the position of the automobile door relative to the automobile body and facilitating the opening and closing of the automobile door. The automobile door hinge is composed of at least two parts, namely an automobile body part connected with an automobile body and an automobile door part connected with an automobile door. The automobile door hinge section steel is a basic component for manufacturing automobile door hinge body parts and automobile door parts, and is formed by processing and assembling section steel strips in a segmented mode.

The existing automobile door hinge profile steel is formed by directly heating a steel billet and rolling the steel billet through a roller, and due to the characteristics of a hot rolling process, the profile steel has large rolling dimensional tolerance and poor surface quality, and along with the improvement of the quality of automobile manufacturing products, the requirement on the dimensional tolerance of the section of the existing profile steel is smaller and smaller, and the requirement on the surface quality is higher.

Disclosure of Invention

The invention provides a finish rolling device for door hinge section steel, which has the following problems that the rolled section steel has larger tolerance and poor surface quality.

To solve the above technical problem, an embodiment of the present invention provides the following solutions:

the embodiment of the invention provides a finish rolling device for door hinge section steel, which comprises door hinge section steel and three rollers, wherein the rotation axes of the three rollers are coplanar, and the rotation axes of the two rollers have a certain angle;

the outer surfaces of the three rollers are mutually compressed pairwise to form a closed hole pattern matched with the shape of the door hinge section steel.

Preferably, the door hinge type steel finish rolling device comprises a first roller, a second roller and a third roller, and the first roller and the second roller have a certain angle with the rotation axis.

Preferably, the outer surface of the third roller is in an inverted V-shaped structure and comprises a V surface A and a V surface B;

one surface A of the first roller and two surfaces B of the second roller are respectively pressed with the V-shaped surface A and the V-shaped surface B, and the end surface of the first roller is pressed with the two surfaces A of the first roller.

Preferably, the shape of the roller surface A and the step surface between the roller surface A and the roller surface B are matched with the shape of the outer surface A of the door hinge section steel.

Preferably, the shape of the second roller between the two surfaces A and B of the roller is matched with the shape of the outer surface B of the door hinge section steel.

Preferably, the shapes of the V-shaped surface A of the third roller and the V-shaped surface B of the third roller are matched with the inner surface of the door hinge section steel.

Preferably, the two surfaces A of the roller are perpendicular to the rotation axis of the first roller.

Preferably, the end surface of the first roller is perpendicular to the rotation axis of the first roller.

Preferably, the rotation axis of the first roller is parallel to the outer face A of the door hinge section steel.

Preferably, the first roller, the second roller and the third roller are respectively arranged on the first roller shaft, the second roller shaft and the third roller shaft;

the rotating speeds of the first roller, the second roller and the third roller can be adjusted.

The scheme of the invention at least comprises the following beneficial effects:

according to the technical scheme, the first roller of the door hinge type steel finish rolling device and the second roller form an included angle for rolling, rolling component forces of the two rollers are partially offset, rolling forces acting on the third roller are reduced, the rotation axes are coplanar, a closed hole pattern is formed, precise closed cold rolling can be performed on door hinge type steel, the size of the door hinge type steel can be corrected, the size precision is guaranteed, no flash phenomenon exists, technical support is provided for realizing subsequent automatic processing, the operation is convenient, and labor and time are saved.

Drawings

FIG. 1 is a schematic structural view of a door hinge type steel finish rolling apparatus according to the present invention;

FIG. 2 is a schematic perspective view of a door hinge type steel finish rolling apparatus according to the present invention;

FIG. 3 is an enlarged schematic view of FIG. 1;

FIG. 4 is a schematic view showing a structure of a door hinge section steel of the door hinge section steel finish rolling apparatus of the present invention;

FIG. 5 is an end view of a door hinge section steel of the door hinge section steel finish rolling apparatus of the present invention.

Reference numerals:

1. rolling a first roller; 101. one surface A of the roller; 102. one side B of the roller; 103. an end face; 2. a second roller; 201. two surfaces A of the roller; 202. two surfaces B of the roller; 3. rolling a third roller; 301. a V surface A; 302. a V surface B; 4. rolling a first shaft; 5. a roller is biaxial; 6. three shafts of rollers are arranged; 7. door hinge section steel; 701. an outer face A; 702. an outer face B; 703. an inner surface.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

As shown in fig. 1 to 5, the present embodiment provides a finish rolling device for door hinge section steel, which comprises a door hinge section steel 7, comprising three rollers, wherein the rotation axes of the three rollers are coplanar, and the rotation axes of two rollers have a certain angle; the outer surfaces of the three rollers are mutually pressed pairwise to form a closed hole pattern matched with the shape of the door hinge steel 7. The roller I1 and the roller II 2 of the door hinge type steel finish rolling device of the embodiment form an included angle for rolling, rolling component forces of the two rollers are partially offset, rolling force acting on the roller III 3 is reduced, the rotation axes are coplanar to form a closed hole pattern, door hinge type steel 7 can be subjected to precise closed cold rolling, the size of the door hinge type steel 7 can be corrected, the size precision is guaranteed, no flash phenomenon exists, technical support is provided for realizing subsequent automatic processing, the operation is convenient, and labor and time are saved.

The door hinge type steel finishing device comprises a first roller 1, a second roller 2 and a third roller 3, wherein the first roller 1 and the second roller 2 have a certain angle, preferably 90 degrees, the first roller 1 and the second roller 2 form an included angle for rolling through the arrangement of the rollers, rolling component forces of the first roller 1 and the second roller 2 are partially offset, and rolling force acting on the third roller 3 is reduced. The first roller 1, the second roller 2 and the third roller 3 are respectively arranged on the first roller shaft 4, the second roller shaft 5 and the third roller shaft 6, the three roller shafts respectively provide rotating rolling torques for the three roller shafts, the rotating directions of the three rollers are the same and face the moving direction of the door hinge section steel 7, and the door hinge section steel 7 is pulled into the roller in the same rotating direction by the friction force between the door hinge section steel 7 and the rollers in the rolling process, so that the door hinge section steel 7 generates plastic deformation; the rotating speeds of the first roller 1, the second roller 2 and the third roller 3 can be adjusted. When the rolling mill works, the rotating speeds of the three rollers are respectively adjusted and set so as to ensure that the rolling line speeds of all surfaces of a workpiece are consistent.

The first roller 1 is in an outer circle step shape and comprises a first roller face A101, a first roller face B102 and an end face 103, the diameter of the first roller face A101 is larger than that of the first roller face B102, the first roller face B102 is an isometric cylindrical surface, the first roller face B102 and a step transition face between the first roller face A101 and the first roller face B102 are used for forming the outer face of the door hinge steel 7, the first roller face A101 is used for pressing a third roller 3, the end face 103 is used for pressing a second roller 2, and the end face 103 of the first roller 1 is perpendicular to the rotation axis of the first roller 1.

The outer surface of the roller three 3 of the embodiment is of an inverted V-shaped structure and comprises a V-shaped surface A301 and a V-shaped surface B302, the V-shaped surface A301 and the V-shaped surface B302 are used for forming the inner surface 703 of the door hinge section steel 7, and the outer shape diameter of the V-shaped surface A301 and the outer shape diameter of the V-shaped surface B302 are matched with the inner surface 703 of the door hinge section steel 7 and are respectively used for pressing the roller one 1 and the roller two 2.

The second roll 2 of the present embodiment includes a second roll face a201 and a second roll face B202, and the second roll face a201 is perpendicular to the rotation axis of the first roll 1. One roll surface A101 and two roll surfaces B202 are pressed against the V-surface A301 and the V-surface B302 respectively, and the end surface 103 of the first roll 1 is pressed against the two roll surfaces A201. The shape of the roller-side a101 and the step surface between the roller-side a101 and the roller-side B102 is adapted to the outer surface a701 of the door hinge section steel 7, and is used for molding the outer surface of the door hinge section steel 7.

The cross section of the hinge section steel 1 for the automobile door is in an L-like shape, two groups of different thick edges are intersected at a certain angle (80-100 degrees), a long strip with the length of a plurality of meters is formed after the hinge section steel for the automobile door is hot-rolled, the hinge section steel is cut into a size meeting the requirements of door hinge finished products subsequently, the door hinge section steel 7 comprises an outer surface A701, an outer surface B702 and an inner surface 703, the rotation axis of a roller I1 of the door hinge section steel finishing device is parallel to the outer surface A701 of the door hinge section steel 7, and the shape between a roller two surface A201 and a roller two surface B202 on a roller II 2 is matched with the outer surface B702 of the door hinge section steel 7 in a matching mode. The shapes of the roller three V surfaces A301 and B302 are matched with the inner surface 703 of the door hinge steel 7.

Through the structural analysis, the pass rolled by the door hinge type steel finishing rolling device of the embodiment forms a closed pass, the dimensional accuracy is ensured, and no flash phenomenon exists.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.