KR100284166B1 - Apparatus and method for forming a pattern on a wire - Google Patents

Abstract

The present invention relates to a rolling apparatus used to form complex and irregular shapes. The rolling apparatus has at least one rolling member with various cavities and / or rises used to form any three-dimensional shape from the raw material. The invention also relates to a method for forming any shape.

Description

Apparatus and method for forming a pattern on a wire

The present invention relates to an apparatus and method for forming a composite shape in a raw material and an apparatus for forming a component from the raw material, and more particularly, to a rolling forging device for forming a component shape by deformation.

A common method for forming component parts from a single piece of natural raw material is by stamping. The stamping (or dieing) process consists of applying a force on the sheet of material with a punch to form a shaped component. The pressure exerts a force sufficient to deform the material by the punching process and punches the component part into a shape determined by a punch or die piece. However, this stamping process involves three drawbacks. First, entering the assembly line requires complex interaction of the machine. Second, the number of component parts formed from a given piece of raw material is limited. In other words, unacceptable amount of raw material is wasted. Third, manufacturing stamp components for the post-production process is complicated because each component is handled separately.

Roll forging is another method for forming component parts, reducing waste and applying simpler steps of the procedure. Rolling forging is a process in which a material is pressed between two rolling surfaces. As is known in the plastic manufacturing process, the rolling forging process shapes the material by forcing plastic deformation of the material by means of a roller that exerts sufficient pressure on the material. However, the well-known rolling forging apparatus is limited. For example, the rolling forging device published in SU-995-973 and Eugene A. Avallone & Theodore Baumeister III, Mark's Standard Handbook for Mechanical Engineers (10th ed. 1996) shows three simple grooves and a single cross section. . The roller applied in the prior art has a constant shape surface over the entire circumference of the roller. Therefore, in the conventional rolling forging has the disadvantage that only the basic contour can be formed.

A combination of stamping and rolling to form plug blades in electrical connectors and to form electrical connectors for bus terminals is disclosed in US Pat. Nos. 4,847,993 and 5,608,965, respectively. However, all of these processes are limited to punching simple holes and grooves in the raw material and flattening the raw material. As mentioned above, these processes did not overcome the limitations and disadvantages of the stamping process or the rolling process.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, and an object of the present invention is to provide a simple manufacturing process for forming a component part from the raw material.

One of the other objects of the present invention is to reduce waste of raw materials.

It is another object of the present invention to provide a rolling forging apparatus capable of forming a shape free from a raw material.

It is another object of the present invention to provide various cross sectional shapes vertically. For example, a given piece of linear raw material can be shaped into various cross sectional dimensions along the length of the raw material formed.

It is another object of the present invention to provide a convenient means for handling the rolled part for post fabrication.

Another object of the present invention is to allow the formation of complex electrical connectors using a continuous manufacturing process.

It is another object of the present invention to provide increased output capacity and quality control using a rolling forging apparatus.

Another object of the present invention is to have a minimum number of moving parts in the manufacturing process.

Additional features and advantages of the invention will be described below, some of which will become more apparent from the description, and will be learned by practice of the invention. The objects and other advantages of the present invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to achieve these and other advantages and in accordance with the purpose of the invention, as specified or widely described, the invention

A first rolling member having an outer periphery;

A raw material disposed on an outer periphery of the rolling member, the raw material including a rolled surface having a first cavity and a second cavity having a first cavity spaced circumferentially from the second cavity; Rolling device for forming; The first cavity has a first shape, the second cavity has a second shape, and the first shape is different from the second shape. In addition, the first cavity may have a first shape, the second cavity may have a second shape, and the first shape is substantially the same as the second shape.

The first cavity also has a first portion and a second portion that are shaped differently from the second portion.

The rolling apparatus additionally includes a second rolling member, the second rolling member having an outer periphery, and the rolling surface is disposed on the outer periphery.

The first rolling member rotates in the first direction, the second rolling member rotates in the second direction, the first direction is substantially opposite to the second direction, and the rotation ratio of the first rolling member and the second rolling member is Generally the same size and adjusted to move the raw materials.

The present invention provides a rolling apparatus including a rolling member having an outer periphery and having first and second rising parts disposed on the outer periphery.

The first riser is spaced circumferentially from the second riser;

The first raised portion has a first shape and the second raised portion has a second shape;

The first shape of the first raised portion is different from the second shape of the second raised portion,

Rolling apparatus for forming a raw material including a rolling member.

The invention also provides a method comprising the steps of: applying a first side of a wire to a first rolling member, and applying a second side of a wire to a second rolling member;

The first cavity is spaced circumferentially from the second cavity,

Forcing the wire into a first cavity disposed on a first rolling member;

And applying a force to enter the wire into a second cavity disposed on the first rolled member.

The foregoing general description and the following detailed description are exemplary and explanatory, and are intended to provide further explanation of the invention as in the claims.

1 is a side view of a rolling forging device.

Figure 2 is an isometric view of the rolling forging device of Figure 1;

Figure 3a and 3b is an enlarged cross-sectional view of the rolling forging device of FIG.

Figure 4 is a detailed view of the rolling forging device of Figure 1;

5A-5D are cross-sectional views taken along lines 5a-5a, 5b-5b, 5c-5c and 5d-5d, respectively, in FIG.

Figure 6 is an enlarged view of the rolling forging device of Figure 1;

7 and 8 are enlarged isometric views of parts of the rolling forging device of FIG.

9 is a sectional view of a part of the rolling forging device of FIGS. 7 and 8;

10 is an isometric view of another embodiment of a rolling forging device of the present invention.

Figure 11 is a side view of another embodiment of a rolling forging device of the present invention.

12-15 show another embodiment of the cavity and the rising part used as the rolling forging device of the present invention.

<Explanation of symbols for the main parts of the drawings>

DESCRIPTION OF SYMBOLS 10 Rolling forging apparatus 12 First roller 14 Second roller

16: first surface 17: second surface 20,20 ': raw material

22 preliminary shape 24 molded shape 32 first outer peripheral surface

33: second outer circumferential surface 34,36: non-use part 35,37: use part

34 ': first non-use surface 35': first non-use surface 36 ': second non-use surface

37 ': second use surface 40: forging area 60: first shape section

62 material flow 70 second shape section 100 component

110: rectangular shape 120: narrow shape 130: slope shape

140: curve shape 200: first molding cavity 210: first rectangular cavity

220: narrow cavity 230: slope cavity 240: curve cavity

300: second molding cavity 350: cavity 360: inclined surface

500: flat material 600,602,610,620: rising part 700: concave

800: working surface 1110: section of the component 1140: curve portion

1310: curve cavity

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to an apparatus and a method for rolling forging a shape free from raw material. The apparatus includes a rolling member and a shape surface disposed on the outer peripheral surface of the rolling member. As the raw material comes into contact with the rolling member, a free shape is rolled forged in the material.

Preferred embodiments of the invention are shown schematically in FIG. 1. The rolling forging device 10 includes a first roller 12 and a second roller 14. The first roller 12 and the second roller 14 in FIG. 1 represent a preferred embodiment of the rolling member. The raw material 20 having the initial preliminary shape 22 is supplied between the first roller 12 and the second roller 14 to roll forge the preliminary shape 22 into the formed shape 24. do. In order to prevent the raw material 20 from sagging before and after the forging process, the raw material 20 is preferably tensioned by T as shown in FIG. 1. A typical feature of this embodiment is the use of a first roller and a second roller to roll forge a strip of electrical connector which is then joined with a connector holder (not shown).

As shown in FIG. 2, the first roller 12 and the second roller 14 each include a first outer peripheral surface 32 and a second outer peripheral surface 33. 2 shows an isometric view of the first roller 12 and the second roller 14. 1 and 2, the first outer peripheral surface 32 and the second outer peripheral surface 33 of the preferred embodiment are the outer circumferential surfaces of the first roller 12 and the second roller 14, respectively. It includes.

Referring to FIG. 2, the first outer peripheral surface 32 preferably includes a use portion 35 and a non-use portion 34. Similarly, the second outer peripheral surface 33 preferably also includes a use portion 37 and a non-use portion 36. The use portions 35 and 37 include forged surfaces (described in more detail below) used to deform the raw material 20 by plastic deformation. Although it is preferable that both the first roller and the second roller comprise a use part, basically at least one of the first roller 12 and the second roller 14 should include the use part.

In addition, wider areas of the first outer peripheral surface 32 and the second outer peripheral surface 33 provide a more stable rotation of the first roller 12 and the second roller 14 and contact therebetween. It is preferable to include the non-use portions 34 and 36 on the first roller 12 and the second roller 14 because the area can be increased. Although presently preferred embodiments of the present invention use two rolling members, the use of two rollers is not necessary to practice the present invention. In addition, the rolling member does not necessarily have to be a disk shape. In an undesirable embodiment, the rolling member generally has an arcuate outer peripheral surface for rolling forging.

As a manufacturing process for forging a raw material freely and vertically varying cross-sectional shape, the present invention includes supplying a raw material to a rolling member forging a region for forming a material from the raw material and rotating the rolling member.

A detailed description of the preferred approach to transforming the raw material into any cross-sectional shape has been sufficiently advanced through the description of how the two-dimensional shape is forged by rotating a pair of two-dimensional forging sections. Next, it will be shown that any three-dimensional shape can be formed by varying the cross-sectional contour of a pair of two-dimensional forged sections along the length of the arc spanning the rolling surface of the rolling member. (I.e. varying the cross-sectional contour along the circumference of at least one of the first outer peripheral surface 32 and the second outer peripheral surface 33) in turn, in the forging section across the arc length of the rolling surface. The change can be continued in such a way as to create a forging surface for rolling forging a plurality of individualized components, a pair of components or any desired combination.

A preferred embodiment of this rolling forging process is shown in FIG. The rolling forging process 10 includes rotating the first roller 12 in the clockwise direction R and rotating the second roller 14 in the counterclockwise direction -R, respectively. The rotational speed of the rollers 12 and 14 is preferably constant through a forging process. Forging of one-dimensional shape is shown in FIGS. 1-5.

As shown in FIGS. 1 and 2, the first roller 12 is positioned adjacent to the second roller 14. When the first roller 12 and the second roller 14 are rotated, the surface portion of the first outer peripheral surface 32 together with the corresponding surface portion of the second outer peripheral surface 33 forging area 40 It is rotated as a result of which two surfaces can deform the raw material 20. For example, as shown in FIG. 2, the first surface 16 of the first outer peripheral surface 32 is first unused, as indicated by the hatched surface disposed on the first outer peripheral surface 32. Face 34 'and first use face 35'. Similarly, the second surface 17 of the second outer peripheral surface 33 includes a second non-use surface 36 'and a second use surface 37'. When the first roller 12 is rotated at an angle θ, the first surface 16 is rotated to a point near the second surface 17 which rotates at a corresponding angle Φ as shown in FIG. 1. As the first surface 16 and the second surface 17 rotate in the closest point to each other, the first use surface 35 'and the second use surface 37' move into the forging region 40. As shown in FIG. As shown in FIG. 3B, the section of the raw material 20 drawn out into the space formed between the first use surface 35 ′ and the second use surface 37 ′ is deformed by plastic deformation.

4 shows the raw material portion before, during, and after the raw material enters the forging region 40. 4 orients the flow of material in the opposite direction to the flow in FIGS. 1 and 2.

5a-5d are cross-sectional views taken along lines 5a-5a, 5b-5b, 5c-5c and 5d-5d, respectively, in FIG. 4 and 5A-5D show that the raw material portion 20 is deformed by plastic deformation into the molding material portion 24 by drawing the raw material portion 20 while passing through the forging region 40. Indicate the process. Each cross section shows a continuous angular position along the first use surface 35 ′ and the second use surface 37 ′ during the forging or firing operation of the raw material portion 20.

Deformation of the raw material portion 20 in the forging region 40 is a gradual process. Thus, the raw material portion 20 has a first use surface as the first surface 16 of the first roller 12 and the second surface 17 of the second roller 14 rotate in the forging region 40. It is gradually deformed by the 35 'and the second use surface 37'.

5A-5D, relative positions of the first use surface 35 'and the second use surface 37' appear with respect to each other during the rolling process. In the position shown in FIG. 5A, the use surfaces 35 ′ and 37 ′ are spaced apart from each other, and a portion 20 of raw material having a preliminary shape 22 is located between the use surfaces.

5B shows the relative positions of the use surfaces 35 'and 37' at another position relative to the use surface. At this point, the use surfaces 35 'and 37' are tighter than the height of the preliminary shape. Thus, the preliminary shape 22 is transformed into any mass flow 62 that is pressed outward along the non-use surfaces 34 'and 36'.

FIG. 5C shows a state where the use surfaces 35 'and 37' are closest to each other during the rolling process. At this point, because the non-used portions 34 'and 36' are in contact with each other, the mass flow 62 is flattened with a flat material 500.

FIG. 5D shows the use surfaces 35 'and 37' at the point where the use surfaces 35 'and 37' are separated from each other. It is well shown in this figure that the flattened flat material 500 exhibits a shape 24 as it exits the forging region 40. The preliminary shape 22 is a shaping shape 24 corresponding to the shape of the cavities 200 and 300 of the use surfaces 35 'and 37'.

The flat material 500 has a thickness much smaller than the thickness of the shape 24. The flat material 500 is easily removed from the shape 24 after exiting the forging region 40. The flat material 500 is removed by any suitable instrument at a suitable time after the preliminary shape 24 leaves the forging region 40.

It is understood that the shape as shown in FIGS. 5C and 5D is one of many cavities of shape that can be formed by the present invention. The shapes of the cavities 200 and 300 of the use surfaces 35 'and 37' vary, but there are certain limitations with respect to the cross-sectional shape for forming the raw material 20 appropriately. For example, a round, progressively sloped surface should be used in place of steep corners to allow the deformable material to flow properly.

The structure of the three-dimensional shape will now be described. The above description for rolling forging a two-dimensional shape in the portion of the raw material 20 'extends to describing how the three-dimensional shape is rolled forged by the aforementioned continuous deformation.

As already mentioned, the first surface 16 and the second surface 17 are forged cross-sectional profiles for shaping two-dimensional shapes (ie, shapes that do not change along the length of the part of the molding material 24 '). It includes. In a preferred embodiment, the first outer circumferential surface 32 and the second outer circumferential surface 33 are a plurality of two-dimensional forged cross-sectional profiles that are continuously spaced along the circumference of the first roller 12 and the second roller 14, respectively. It includes.

Another feature of the invention is that changes in three-dimensional shape can be forged from the raw material 20. Note that the shape of the component 100 in FIGS. 6-10 is merely a typical feature of the rolling forging device and process. It should be recalled that the detailed description of the component 100 is merely provided to illustrate one of the unlimited variations of the molded three-dimensional shape expected by the present invention.

6 shows the first roller 12, the second roller 14, the first shape section 60, the second shape section 70 and the first shape section 60 and the first as described in detail later. The isometric exploded view of the component 100 to be molded when the two-shaped section 70 rotates in the forging region.

FIG. 7 shows an enlarged view of the first shape section 60, the second shape section 70 and the component 100 shown in FIG. 6. FIG. 8 is the same view as FIG. 7 except that the first shape section 60 is rotated to show a portion of the first outer circumferential surface 32 which is not revealed from the figure of FIG.

The component 100 includes a rectangular shape 110, a narrowing shape 120, a sloped shape 130, and a curved shape 140. The following description of the structure of these preferred component shapes shows an example of how three-dimensional shapes can be forged during the practice of the present invention.

8 and 9, the portion of the first outer circumferential surface 32 provided in the first shape section 60 includes the first molding cavity 200. The first forming cavity 200 includes a first rectangular cavity 210, a narrow cavity 220, a slope cavity 230, and a curve cavity 240. The portion of the second outer circumferential surface 33 provided in the second shaped section 70 includes a second forming cavity 300.

In the preferred embodiment, these two forming cavities rotate in the forging region 40 to form the component 100. Although preferred, it is not necessary to use two forming cavities to form a three-dimensional shape. That is, another embodiment may be exemplified in which the second roller has a flat surface that rotates in the forging region, while the forming cavity is disposed on the first roller.

The curve shape 140 is a curved three-dimensional shape by changing the cross-sectional profile of the forging surface in the same way as forming a curved forging surface. The forging process described for forming a three-dimensional component 100 representing typical features of a preferred embodiment of the present invention is achieved by simply changing the cross-sectional profile of the forging section disposed on the outer surface portion of the rolled member. It can be easily extended by forming the three-dimensional shape of 24).

Preferably, a pair of rollers each having an outer circumferential surface and a plurality of forming cavities is used to form the component. As described above, only one of the pair of rollers may have a molding cavity. Further, a rolling forging apparatus including a single rolling member having one outer circumferential surface may be used.

10 and 11 show how another shape of component 100 is shaped for other embodiments of cavities 200 and 300. The same reference numerals refer to the same parts of the present invention as shown in Figs. The difference is that the curved portion 1140 has an arc shape due to the raised portion 602 in the curved portion cavity 1340. The shape of section 1110 of component 100 changes to include new indentation 700. The recess marks are formed by the rising part 600.

Another feature of the invention includes a process for forming a plurality of component shapes by placing a sequence of forming cavities along the use portion of the outer circumferential surface of the roller. In FIG. 4, the plurality of first forming cavities 200 and the second forming cavities 300 are disposed along the circumferences of the use portions 35 and 37, respectively. As each set of the first forming cavity 200 and the second forming cavity 300 rotates in the forging region 40, the component 100 is formed in the raw material 20. Thus, any number of components is formed during a given rotation of the roller. This number varies by changing this number of the first and second forming cavities 200 and 300.

12-15 illustrate various embodiments of elevations and cavities used to shape the material into the desired shape. As used in the present invention, the riser is expected to be something that rises in relation to the immediate surroundings. There is a cavity 350 (FIG. 15) on the working surface 800. There is also a cavity 350 in the raised portion 610 on the working surface 800 (FIG. 12). In addition, the cavity 350 has an inclined surface 360 that forms a rounded shape. As a result, there is a rise 620 on the rise 610 on the working surface 800. It is contemplated by the present invention that various elevations, cavities and sloped surfaces or other surfaces are used to modify the material to the desired shape.

Any feature of the disclosed subject matter may be used separately or in combination.

Additional advantages and modifications will be readily apparent to those skilled in the art. Thus, in a broad aspect, the invention is not limited to the specific details and representative apparatus shown and described herein.

Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents.

The present invention is not limited to the above-described embodiments, and various modifications and variations are made by those skilled in the art within the equivalent scope of the technical concept of the present invention and the claims to be described below. Of course it is possible.

As described above, the present invention provides a rolling apparatus used to form a complex and irregular three-dimensional shape from a raw material on a wire, a method for forming an arbitrary shape, and a simple manufacturing process. According to the present invention it is possible to reduce the waste of the material material and to perform a simple process.

Claims (17)

A first rolling member having an outer periphery; A rolled surface disposed on an outer periphery of the rolling member, the first cavity having a first cavity and a second cavity spaced circumferentially from the second cavity; Rolling device for forming a raw material. The method of claim 1, And wherein the first cavity has a first shape, the second cavity has a second shape, and the first shape is different from the second shape. The method of claim 1, The first rolling member is a rolling device for forming a raw material, characterized in that it comprises a plurality of cavities. The method of claim 1, And the first cavity has a first shape, the second cavity has a second shape, and the first shape is substantially the same as the second shape. The method of claim 4, wherein Wherein said first cavity has first and second portions, said first portion being shaped differently from said second portion. The method of claim 4, wherein The first cavity has a first and a second portion, the first portion has a first width, the second portion has a second width, and the first width is different from the second width. Rolling apparatus for forming the material. The method of claim 4, wherein The first cavity has a first and a second portion, the first portion has a first cross section, the second portion has a second cross section, and the first cross section is different from the second cross section. Rolling apparatus for forming the material. The method of claim 1, A rolling apparatus for forming a raw material, further comprising a second rolling member having an outer periphery on which the rolled surface is disposed on the outer periphery. The method of claim 8, The first rolling member rotates in the first direction, the second rolling member rotates in the second direction, the first direction is substantially opposite to the second direction, and the rotation ratio of the first and second rolling members is Rolling apparatus for forming a raw material, characterized in that the size is generally the same and adjusted to move the raw material. The method of claim 8, The rotating shaft of the first rolling member and the rotating shaft of the second rolling member are disposed at a predetermined distance apart from each other, wherein the predetermined distance is selected such that the first and second rolling members are selected to hold the raw material. Rolling apparatus for The method of claim 8, The rolling surface of the second rolling member has a first cavity, and the first cavity of the second rolling member is substantially aligned with the first cavity of the first rolling member. Device. The method of claim 8, The rolling surface of the second rolling member has a raised portion, wherein the first cavity of the second rolling member is substantially aligned with the first cavity of the first rolling member. The method of claim 8, The rolling device for forming a raw material, characterized in that the second rolling member has a plurality of cavities. The method of claim 10, The second rolling member has a plurality of cavities, the rolling device for forming a raw material, characterized in that it has the same number of cavities as the first rolling member. The method of claim 8, The second rolling member has a plurality of rising portions, and the rolling apparatus for forming a raw material, characterized in that it has the same number of rising portions as the cavity of the first rolling member. A rolling apparatus comprising a rolling member having an outer periphery and having first and second raised portions disposed on the outer periphery, The first riser is spaced circumferentially from the second riser; The first raised portion has a first shape and the second raised portion has a second shape; The first shape of the first raised portion is different from the second shape of the second raised portion, Rolling apparatus for forming a raw material, characterized in that it comprises a rolling member. Applying a first side of the wire to the first rolling member, and applying a second side of the wire to the second rolling member; The first cavity is spaced circumferentially from the second cavity, Forcing the wire into a first cavity disposed on a first rolling member; Forcing the wire into a second cavity disposed on the first rolled member.