KR20150022513A - Automotive front lower arm manufacture device - Google Patents

Automotive front lower arm manufacture device Download PDF

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Publication number
KR20150022513A
KR20150022513A KR20130100513A KR20130100513A KR20150022513A KR 20150022513 A KR20150022513 A KR 20150022513A KR 20130100513 A KR20130100513 A KR 20130100513A KR 20130100513 A KR20130100513 A KR 20130100513A KR 20150022513 A KR20150022513 A KR 20150022513A
Authority
KR
South Korea
Prior art keywords
lower arm
front lower
mold
molds
primary
Prior art date
Application number
KR20130100513A
Other languages
Korean (ko)
Inventor
허인태
Original Assignee
주식회사 새해성
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 새해성 filed Critical 주식회사 새해성
Priority to KR20130100513A priority Critical patent/KR20150022513A/en
Publication of KR20150022513A publication Critical patent/KR20150022513A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses

Abstract

The present invention relates to an automotive front lower arm manufacturing device, and the automotive front lower arm manufacturing device is comprised of a first to a fifth upper and lower molds. The first upper and lower molds are composed of a first upper mold and a first lower mold, and guide pins are formed in an inner molding part of the first lower mold to enable guide grooves to be coupled when a front lower arm material is molded in a first lower arm shape. According to the present invention, the front lower arm materials simultaneously form two front lower arms without movement to improve productivity and not to generate a loss of a metal plate to reduce manufacturing costs. More specifically, a blanking line becomes an external line of the front lower arm to provide the front lower arm of excellent quality which prevents an accident from occurring when workers handle the front lower arm.

Description

Technical Field [0001] The present invention relates to an automotive front lower arm manufacture device,

The present invention relates to an apparatus for manufacturing a front lower arm of an automobile. More specifically, the present invention can simultaneously form two front lower arm materials, and prevent the front lower arm material from moving during molding of the front lower arm material into a mold To a front lower arm manufacturing apparatus for an automobile.

As is known, the front lower arm of the vehicle is formed in various forms according to the type of the vehicle. The front lower arm is movably installed on the vehicle body side and the wheel side, so that the differential vehicle acts to absorb vibrations and shocks will be.

A typical manufacturing apparatus of the conventional front lower arm is a mold in which one front lower arm prepared by blanking a metal plate is formed into a first through sixth molds at various stages, And a punching device for forming the vehicle body side bush hole and the wheel side bush hole are formed.

The 6th-order mold includes a cutting device for cutting the outer line 103 on the wheel side bush hole including the outer line of the front lower arm 100 remaining after forming the front lower arm, / RTI >

As described above, in the case of the front lower arm manufacturing apparatus in which the front lower arm is molded at various stages through the first to sixth molds and finally cut, the front lower arm is moved in the primary mold on the structure of the front lower arm. I can not install a structure that can not hold it.

 Therefore, when the front lower arm material is formed into the shape of the front lower arm in the primary mold, the front lower arm material moves.

Since the front lower arm material moves when the primary metal mold is formed into the shape of the front lower arm as described above, the front lower arm material is blanked to a larger size than the expanded size of the real front lower arm in consideration of the moving width thereof, There is a disadvantage in that a loss of the metal plate is generated due to the inevitable final trim (TRIM) after the lower arm is formed and the cost is increased.

Side front bush hole and the wheel side bush hole in the process of preparing the front lower arm material larger than the developed size of the actual front lower arm as described above and performing the various stages of molding through the first through fifth molds There is a disadvantage in that the distance A between the vehicle body side bushhole and the outer line is varied and the quality of the front lower arm deteriorates.

Particularly, since the outer line of the wheel side bush hole is inevitably cut off at the formed angle of the front lower arm in the final trim (TRIM) step after forming the front lower arm, the front lower arm is handled by the sharp portion There is a disadvantage that it is a cause of a safety accident that damages the skin of a worker's finger, arm or the like.

In order to solve the disadvantage of the above-mentioned safety accident, there are many problems such as a troublesomeness that it is necessary to additionally perform a dulling operation to sharpen the sharp part of the outline of the wheel side bush hole.

Prior Art Korean Patent No. 10-1284848 discloses a press method for machining a lower arm for automobiles that not only can reduce the energy saving effect and the production cost by simplifying the process of pressing the lower arm, The present invention relates to a press method capable of reducing the number of presses to thereby reduce production cost and energy consumption, but the object and technical structure are not related to the present invention.

Prior Art Patent Laid-Open No. 10-1997-0034056 discloses a structure and a manufacturing method of a suspension lower arm for a vehicle, which are formed by forging a suspension lower arm having a large weight load due to a load of a spring and a shock absorber, And is not related to the present invention.

Prior Art Patent No. 10-2006-0021965 relates to a method for manufacturing an aluminum lower arm for automobiles and a method for manufacturing a new aluminum lowering arm which is inexpensive and has a physical property comparable to that of a conventional aluminum forging low arm, And is not related to the present invention.

Patent Document 001: Korean Patent No. 10-1284848 (registered on June 26, 2013) Patent Document 002: Korean Patent Laid-Open No. 10-1997-0034056 (published on July 22, 1997) Patent Document 003: Korean Patent Publication No. 10-2006-0021965 (published on Mar. 09, 2006)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-described problems, and it is an object of the present invention to provide an automobile front body which is capable of simultaneously forming two front lower arms and preventing a front lower arm material from moving in a process of molding a front lower arm material into a mold The lowering line of the front lower arm is made to be the outer line of the front lower arm by minimizing the loss of the metal plate, thereby reducing the manufacturing cost of the front lower arm and improving the productivity and quality .

In order to achieve the above object, according to the present invention, there is provided an apparatus for manufacturing a front lower arm of an automobile, which comprises a front lower arm which is composed of first to fifth upper and lower metal molds, 2, < / RTI >

The primary and lower molds are composed of a primary lower mold having a primary upper mold having an out molding part formed on both sides so as to simultaneously mold two front lower arms and a primary lower mold having an inner molding part. The guide pin is formed in the inner forming portion of the primary lower mold so that the guide groove formed in the front lower arm material is engaged so that the front lower arm material can be formed at an accurate position without being pushed by either one when the lower lower arm is formed into a lower arm shape. Is characterized by the present invention.

According to the present invention, since the front lower arm is not moved through the first and second lower molds and two front lower arms are formed at the same time, it is possible to provide a front wall arm having uniform thickness and excellent quality ,

As a result of the blanking line of the front lower arm material being the outer line of the front lower arm, loss of the metal plate is not caused and the productivity is improved,

In particular, since the blanking line of the front lower arm material is the outer line of the front lower arm, the end of the outer line of the wheel side bush hole is U-shaped and is bent downwardly so that the quality Thereby providing an excellent front lower arm.

1 is an enlarged cross-sectional view of a lower portion of a lower arm manufactured by a conventional front lower arm manufacturing apparatus
Fig. 2 is a perspective view showing two front-
Fig. 3 is a perspective view showing a front view of a front view
Fig. 4 is a cross-sectional view showing the enlarged main part of the front lower arm by the manufacturing apparatus of the present invention
Figs. 5 and 6 are diagrams showing examples of first to fifth molds for realizing the manufacturing apparatus of the present invention
FIG. 7 is a view showing an example of a step of molding two front lower arms by the manufacturing apparatus of the present invention
8A shows a state before the hole is drilled in the front lower arm, and B shows a state in which the hole is opened.
9A shows a state before a cylindrical portion is formed, and B shows a sectional view in a state in which a cylindrical portion is formed

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An apparatus for manufacturing a front lower arm of an automobile according to the present invention will be described in detail with reference to the drawings.

The apparatus for manufacturing a front lower arm of an automobile according to the present invention comprises first through fifth upper and lower molds.

The primary upper and lower molds 10 and 11 include a primary upper mold 10 and an inner molding portion 11 'in which an out molding portion 10' is formed on both sides so that two front lower arms can be simultaneously formed, When the front lower arm material 1 is molded into the shape of the primary front lower arm 1a, the front lower arm material 1 is not pushed to any one side, The guide pin 12 is formed on the inner forming part 11 'of the primary lower mold 11 so that the guide guide groove 5 formed in the front lower arm material 1 can be engaged so that the guide guide groove 5 can be formed at the position,

The punch 13 'and the punch hole 14' are formed in such a manner that a hole 52 can be formed at a predetermined position of the front lower arm 51, Respectively,

The upper mold 15 and the lower mold 15 and 16 are formed by a lower mold 16 having an upper mold 15 and a lower mold 16, Wherein the arm material (1) is configured to be shaped more closely into a front-lowered arm-finished shape,

The punch device 50 for punching the bush hole 2 on the vehicle body side of the front lower arm is provided on the left and right sides of the fourth and fifth molds 17 and 18 and the upper and lower molds 17 and 18 Is provided with a punch hole 17 'and a punch 18' for punching the wheel side bush hole 4. The punch hole 17 'and the punch 18' The operation structure is general and a detailed description is omitted.

The fifth and sixth molds 19 and 20 are constructed such that a dice hole 19 'and a die punch 20' are formed in the wheel side bush hole 4 of the front lower arm to form a cylindrical portion 4 ' And the operation structure of the die hole and the die punch is the same as that of a generally used dice device, so that a detailed description thereof is omitted.

Hereinafter, the operation of the apparatus for manufacturing a front lower arm of the vehicle according to the present invention will be described in detail.

The operation of the first to fifth and upper molds constituting the apparatus for manufacturing a front lower arm according to the present invention is the same as that of a general mold.

First, as shown in FIG. 2, the metal plate material is connected by the connecting piece 3 at the side of the body side bushhole in the shape in which two front lower arms are developed by blanking, and a guide guide groove 5 is formed at the wheel side bush hole position The front lower arm material 1 prepared and prepared and the primary lower mold 11 having the inner forming section 11 'formed by the material supplying apparatus (which is the same as the material conveying apparatus in a general press apparatus, not shown) ).

At this time, the guide guide groove 5 formed in the front lower arm material 1 is inserted into the guide pin (not shown) formed in the inner forming part 11 'so that the front lower arm material 1 can be formed at an accurate position without being pushed by either one 12).

The upper mold 10 having the out molding section 10 'is lowered and the lower mold 11 having the inner molding section 11' and the upper mold 10 having the out molding section 10 ' The front lower arm material 1 is formed into the shape of the primary front lower arm 1a.

Since the guide groove 5 formed at the wheel side bush hole is coupled to the guide pin 12, the front lower arm material 1 is not pushed to any one side, . ≪ / RTI >

Holes 52 are formed at predetermined positions of the front lower arm by the punches 13 'and the punch holes 14' of the secondary upper and lower molds 13 and 14, The front lower arm material 1 is further formed into the shape of the front lower arm by the molds 15 and 16.

Side bush holes 2 of the front lower arm are punched by the punch device 50 on the right and left sides of the fourth lower mold 18 and the wheel side bush holes 2 are formed in the upper and lower molds 17, Side bush hole 4 is pierced by the punch hole 17 and the punch 18 for piercing the wheel-side bush hole 4.

Next, a cylindrical portion 4 'is formed in the wheel side bush hole 4 of the front lower arm by the dice hole 19' of the fifth and upper molds 19 and 20 and the die punch 20 ' And two front lower arms are manufactured at the same time.

1: front lower arm material 2: body side bush hole
3: Connecting piece 4: Wheel side bush hole
5: guide guide grooves 10 and 11: primary and lower molds
12: guide pin 51: front lower arm

Claims (2)

1. A front lower arm manufacturing apparatus for an automobile comprising a first through fifth molds and a lower mold apparatus,
The primary and lower molds are composed of a primary lower mold having an out molding part formed on both sides so that two front lower arms can be simultaneously molded, and a primary lower mold having an inner molding part,
When the front lower arm is formed into the shape of the first front lower arm, the primary lower mold having the inner forming portion is formed into a shape formed on the front lower arm so that the front lower arm can be molded at an accurate position without being pushed to one side. Wherein the guide pin is formed in the inner forming part of the primary lower mold so that the guide groove is engaged. A punch and a punch hole are formed in the upper and lower molds so as to form a hole at a predetermined position of the front lower arm,
The upper and lower molds have an upper mold having an out-molding part deeper than the primary upper mold and a lower mold having an inner molding part formed higher than the primary upper mold,
The upper and lower molds are provided with a punch hole and a punch hole for drilling the wheel side bush hole, and the upper and lower molds are provided with punch holes for drilling the wheel side bush holes.
Wherein the fifth and the fifth molds comprise a die hole and a die punch for forming a cylindrical portion in the wheel side bush hole of the front lower arm.
KR20130100513A 2013-08-23 2013-08-23 Automotive front lower arm manufacture device KR20150022513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20130100513A KR20150022513A (en) 2013-08-23 2013-08-23 Automotive front lower arm manufacture device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20130100513A KR20150022513A (en) 2013-08-23 2013-08-23 Automotive front lower arm manufacture device

Publications (1)

Publication Number Publication Date
KR20150022513A true KR20150022513A (en) 2015-03-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR20130100513A KR20150022513A (en) 2013-08-23 2013-08-23 Automotive front lower arm manufacture device

Country Status (1)

Country Link
KR (1) KR20150022513A (en)

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