阅读说明：本技术 一种汽车天线支座成型方法 (Forming method of automobile antenna support ) 是由 顾大明 于 2021-06-11 设计创作，主要内容包括：本发明属于冲压加工技术领域,涉及一种汽车天线支座成型方法,步骤包括：冲定位孔、外切边、冲预留孔、打凸包、冲凹槽、冲卡扣孔、内修边、翻边和落料。本方法能够连续快速地完成汽车天线支座的变形加工,且能够保证各个位置的精度要求。(The invention belongs to the technical field of stamping processing, and relates to a method for forming an automobile antenna support, which comprises the following steps: punching a positioning hole, externally trimming, punching a reserved hole, punching a convex hull, punching a groove, punching a buckling hole, internally trimming, flanging and blanking. The method can continuously and quickly finish the deformation processing of the automobile antenna support, and can ensure the precision requirements of all positions.)

1. A method for forming an automobile antenna support is characterized by comprising the following steps:

punching a positioning hole: cutting outer side positioning holes at two sides of the metal material belt;

cutting edges externally: cutting out the outer contour of a core part on the metal material belt under the condition of reserved deformation, and connecting the core part to continuous parts at two sides of the metal material belt by virtue of a plurality of connecting materials;

punching a reserved hole: punching a deformation reserved hole in the middle of the core part;

fourthly, convex bag making: extruding the flat core part into a required three-dimensional structure and forming a plurality of convex hull structures;

punching a groove: cutting a notch on the edge of the convex hull structure;

sixthly, punching a buckling hole: punching buckling holes on two sides of the deformation preformed hole;

seventhly, internally trimming edges: cutting off the area where the deformation reserved hole is located on the inner side of the core part, and reserving a buckling hole;

eighthly, flanging: flanging the material outside the buckling hole to one side;

ninthly, blanking: and cutting off the connecting material to enable the core part to fall to form a product structure.

2. The method for forming an antenna mounting for an automobile of claim 1, wherein: and punching a middle positioning hole in the middle of the metal material belt, wherein the middle positioning hole is positioned between the convex hull structure and the deformation reserved hole.

3. The method for forming an antenna mounting for an automobile of claim 2, wherein: the number of the middle positioning holes is two, and the deformation preformed hole is located between the two middle positioning holes.

4. The method for forming an antenna mounting for an automobile of claim 2, wherein: and c, synchronously cutting the middle positioning hole and the deformation reserved hole in the step c.

5. The method for forming an antenna mounting for an automobile of claim 1, wherein: and secondly, cutting out the outer contour of the core part by adopting a plurality of working sections.

6. The method for forming an antenna mounting for an automobile of claim 1, wherein: and step (c), cutting a small through hole in the previous working section, and then cutting a large through hole in the area where the deformation reserved hole is located in the next working section.

Technical Field

The invention relates to the technical field of stamping, in particular to a method for forming an automobile antenna support.

Background

The structure of the car antenna support 1 is shown in fig. 1, the structure is relatively complex, a plurality of convex hull structures 11 are arranged on the car antenna support, a notch 12 is cut in one of the convex hull structures 11, a large through hole 13a and a small through hole 13b are arranged in the middle of the notch, and bent buckling holes 14 are arranged on two sides of the large through hole 13 a. Since the presence of the large through-hole 13a has many adverse effects on the flow of the metal material. These structures place high demands on the molding accuracy, and it is necessary to develop a process for rapidly processing the antenna mount of the automobile.

Disclosure of Invention

The invention mainly aims to provide a method for forming an automobile antenna support, which can quickly form the automobile antenna support with high precision.

The invention realizes the purpose through the following technical scheme: a method for forming an automobile antenna support comprises the following steps:

punching a positioning hole: cutting outer side positioning holes at two sides of the metal material belt;

cutting edges externally: cutting out the outer contour of a core part on the metal material belt under the condition of reserved deformation, and connecting the core part to continuous parts at two sides of the metal material belt by virtue of a plurality of connecting materials;

punching a reserved hole: punching a deformation reserved hole in the middle of the core part;

fourthly, convex bag making: extruding the flat core part into a required three-dimensional structure and forming a plurality of convex hull structures;

punching a groove: cutting a notch on the edge of the convex hull structure;

sixthly, punching a buckling hole: punching buckling holes on two sides of the deformation preformed hole;

seventhly, internally trimming edges: cutting off the area where the deformation reserved hole is located on the inner side of the core part, and reserving a buckling hole;

eighthly, flanging: flanging the material outside the buckling hole to one side;

ninthly, blanking: and cutting off the connecting material to enable the core part to fall to form a product structure.

Specifically, the first step further comprises punching a middle positioning hole in the middle of the metal material belt, wherein the middle positioning hole is located between the convex hull structure and the deformation reserved hole.

Furthermore, the number of the middle positioning holes is two, and the deformation preformed hole is located between the two middle positioning holes.

Further, the middle positioning hole and the deformation reserved hole are cut off synchronously in step (c).

Specifically, the second step is to cut out the outer contour of the core part by adopting a plurality of working sections.

In the step (c), a small through hole is cut in the previous working section, and then a large through hole containing the area where the deformation reserved hole is located is cut in the next working section.

The technical scheme of the invention has the beneficial effects that:

the method can continuously and quickly finish the deformation processing of the automobile antenna support, and can ensure the precision requirements of all positions.

Drawings

FIG. 1 is a perspective view of an automotive antenna mount;

fig. 2 is a sequence diagram of the deformation of the metal strip.

Labeled as:

1-an automobile antenna support, 11-a convex hull structure, 12-a notch, 13-a through hole and 14-a buckling hole;

100-metal material belt, 101-outer side positioning hole, 102-middle positioning hole, 103-deformation preformed hole, 104-core part, 105-connecting material and 106-continuous part.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

Example (b):

as shown in fig. 1 and 2, the method for forming the antenna support of the automobile of the present invention includes the steps of:

firstly, outside positioning holes 101 are cut on two sides of the metal material belt 100. The outside positioning holes 101 serve as positioning references on the continuous portion 106 for allowing the outside position to be found for each punching of the continuous die.

② the outer contour of the core portion 104 is cut out of the metal strip 100 with a predetermined amount of deformation, and the core portion 104 is connected to the continuous portions 106 on both sides of the metal strip 100 by means of a plurality of connecting materials 105.

And punching a deformation allowance hole 103 in the middle of the core portion 104. The extent of the deformed preformed holes 103 is inside the extent of the large through holes 13a, but smaller, in order to allow the middle material to flow outward during the convex wrapping process without exceeding the inner contour of the large through holes 13a, leaving room for the inner trimming.

And extruding the flat core part 104 into a required three-dimensional structure and forming a plurality of convex hull structures 11.

Cutting a notch 12 on the edge of the convex hull structure 11. In the case of support, the position is fixed after the notch 12 is cut, and the edge can also meet the design requirements.

Sixthly, punching buckling holes 14 at two sides of the deformation preformed hole 103. After undergoing the embossing, the extent of the deformation reserve hole 103 has been deformed, but because of the reserve space, the outer contour of the snap-in hole 14 is not affected.

The area where the deformation reserved hole 103 is located is cut off on the inner side of the core part 104, and the clamping hole 14 is reserved. The step aims at shaping the inner contour, so that the inner contour also meets the requirement of a design drawing.

And turning the material outside the buckling hole 14 to one side. Since the latch hole 14 is still planar, an additional bending step is required to achieve the final configuration.

Ninthly, cutting off the connecting material 105 and enabling the core part 104 to fall to form a product structure (the automobile antenna support 1).

As shown in fig. 2, the step (i) further includes punching a middle positioning hole 102 in the middle of the metal material tape 100, where the middle positioning hole 102 is located between the convex hull structure 11 and the deformation reserved hole 103. The middle positioning hole 102 prevents the inner contour of the metal tape 100 from being deformed too much to cause an unrepairable dimension problem when the metal tape is subjected to convex closure punching, concave groove punching and buckle hole punching, thereby increasing the yield.

As shown in fig. 1 and 2, the intermediate positioning holes 102 are two, and the deformation prepared hole 103 is located in the middle of the two intermediate positioning holes 102. There are two main convex hull structures 11 on the product, so two middle locating holes 102 are needed for limiting.

As shown in fig. 2, the middle positioning hole 102 and the deformation reserve hole 103 are cut out in synchronization with step c. After the multi-step deformation, the outlines of the middle positioning hole 102 and the deformation reserved hole 103 are not in place, and the two parts are not in the range required to be reserved for the product, so that the two parts can be removed in the same step.

Step two is to cut out the outer contour of the core portion 104 using a plurality of stations, as shown in fig. 2. In some cases where the locations are relatively narrow, it may be desirable to stamp discrete sections to prevent material from breaking.

As shown in fig. 2, step (c) is to cut out a small through hole 13b at the previous process and then cut out a large through hole 13a including the region where the deformation reserve hole 103 is located at the subsequent process. The cutting of the small through holes 13b causes somewhat more material flow and the cutting of the large through holes 13a in the later stages makes the inner contour more accurate.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.