KR102039773B1 - manufacturing method of one body type roof lack - Google Patents

manufacturing method of one body type roof lack Download PDF

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Publication number
KR102039773B1
KR102039773B1 KR1020160028214A KR20160028214A KR102039773B1 KR 102039773 B1 KR102039773 B1 KR 102039773B1 KR 1020160028214 A KR1020160028214 A KR 1020160028214A KR 20160028214 A KR20160028214 A KR 20160028214A KR 102039773 B1 KR102039773 B1 KR 102039773B1
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KR
South Korea
Prior art keywords
cutting
main body
cutting surface
edge
roof rack
Prior art date
Application number
KR1020160028214A
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Korean (ko)
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KR20170105248A (en
Inventor
최창식
Original Assignee
(주)엘지하우시스
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Priority to KR1020160028214A priority Critical patent/KR102039773B1/en
Publication of KR20170105248A publication Critical patent/KR20170105248A/en
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Publication of KR102039773B1 publication Critical patent/KR102039773B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R9/00—Supplementary fittings on vehicle exterior for carrying loads, e.g. luggage, sports gear or the like
    • 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/20—Bending sheet metal, not otherwise provided for
    • B21D11/203—Round bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/002—Milling elongated workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/12—Trimming or finishing edges, e.g. deburring welded corners
    • B23C3/122—Trimming or finishing edges, e.g. deburring welded corners of pipes or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • B23C5/1009—Ball nose end mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

The present invention not only can minimize the time required to cut the cutting surface of the body in the manufacturing process of the integrated roof rack, but also to reduce the weight of the product, and to minimize the occurrence of injuries of the operator when handling the product integrated roof rack A manufacturing method, comprising: a main body forming step of extruding a tubular body with an extruder; A main body bending step of bending the front and rear ends of the main body extruded in the form of a tube with a banding machine; A main body cutting step of cutting front and rear ends of the main body bent with a cutting tool; And a main body cutting step of cutting the cutting surface of the main body with a cutting tool, wherein the main cutting step cuts the cutting surface edge after removing the inside of the cutting surface edge with the cutting tool.

Description

Manufacturing method of one body type roof lack

The present invention relates to a roof rack manufacturing method, and more particularly to minimize the time required to cut the cutting surface of the body in the manufacturing process of the integrated roof rack, and to reduce the weight of the product, It relates to an integrated vehicle roof rack manufacturing method to minimize the occurrence of injuries.

In general, passenger cars other than freight cars have limited internal spaces, and therefore, there are restrictions on loading cargo.

For this reason, a loading space is additionally secured by attaching a roof carrier as disclosed in Korean Patent Laid-Open Publication No. 10-1997-0038757 (published date: July 24, 1997) on a roof panel of a vehicle.

The roof carrier includes a pair of roof racks installed in the longitudinal direction on both sides of the roof panel, and a plurality of crossbars coupled between the roof racks, and having various sizes of cargo loaded thereon as the distance between the crossbars is adjusted. Is possible.

On the other hand, conventional roof racks were generally manufactured in a split type.

That is, the conventional split roof rack is manufactured by assembling the separately formed main body, the pad, the suspension, the cover, and the like.

Such a conventional split roof rack can increase the design freedom as the cover is manufactured in various colors and shapes.

However, the conventional split roof rack is not only composed of a relatively large number of parts of about 10 types, but also has a considerable time for assembling the product due to the cumbersome connection between the front and rear ends of the main body and the cover coupling to each of the stents. There was a problem of this deterioration.

In order to solve the above problem, an integrated roof rack has been proposed.

The conventional integrated roof rack includes a main body, a pad, and the like. As the main body includes a suspension and a cover function, the integrated roof rack includes about four kinds of relatively few parts. Thus, the parts may be simplified compared to the conventional split roof rack. This can increase the efficiency of product assembly work.

Meanwhile, the conventional integrated roof rack manufacturing method includes a main body forming step of extruding a tubular body through an extruder, a main body bending step of bending the front and rear ends of the extruded body with a constant curvature, and a lower end of the front and rear ends of the bent body. A main body cutting step of cutting the main body, and a main body cutting step of cutting the cutting surface of the main body.

As described above, the conventional integrated roof rack manufacturing method including a main body forming step, a main body bending step, a main body cutting step, and a main body cutting step was capable of manufacturing an integrated roof rack, but there was a problem in that manufacturing efficiency was lowered.

That is, in the conventional integrated roof rack manufacturing method, the cutting tool (not shown in the drawing) moves in a zigzag form along the width direction of the main body 10 'as shown in FIG. Since the cutting surface 10a 'of the body 10') is cut by the surface cutting method, the processing area is excessive and the time required for cutting is inevitably reduced, thereby lowering the manufacturing efficiency.

In addition, in the conventional integrated roof rack manufacturing method, since the cutting surface 10a 'is cut by the surface cutting method in the main body cutting step, the inner side of the cutting surface 10a' is left in addition to the edge of the cutting surface 10a '. The weight of this had a significant problem.

In addition, in the conventional integrated roof rack manufacturing method, since the cutting area area is significant after cutting the cutting surface 10a 'of the main body 10', the operator frequently injuries as the surface contacts the sharp cutting area. there was.

For this reason, in the related field, not only the time required for cutting the cutting surface of the main body in the manufacturing process of the integrated roof rack can be reduced, but also the weight of the product can be minimized and the worker's injury in the handling process can be minimized. While seeking, but until now has not been satisfactory results.

The present invention has been proposed in view of the above circumstances, and when the cutting surface of the main body is cut according to the conventional integrated roof rack manufacturing method, the cutting tool moves in a zigzag form along the width direction of the main body and the bottom of the front and rear ends of the main body. It is an object of the present invention to provide an integrated roof rack manufacturing method that can solve the problem that the time required for cutting according to the cutting by the surface cutting method has a considerable manufacturing efficiency is reduced thereby.

In addition, an object of the present invention is to provide an integrated roof rack manufacturing method that can solve the problem that the weight of the product was significant as the inner edge of the cutting surface of the main body when following the conventional integrated roof rack manufacturing method.

In addition, the present invention, when the conventional integrated roof rack manufacturing method according to the surface is not smooth and sharp cutting area area is significant, the integrated roof rack manufacturing to solve the problem that the operator frequently caused by the cutting site contact during handling The purpose is to provide a method.

In order to achieve the above object, the integrated vehicle roof rack manufacturing method according to the present invention comprises: a main body forming step of extruding a tubular body with an extruder; A main body bending step of bending the front and rear ends of the main body extruded in the form of a tube with a bending machine; A main body cutting step of cutting front and rear ends of the main body bent with a cutting tool; And a main body cutting step of cutting the cutting surface of the main body with a cutting tool, wherein the main cutting step cuts the cutting surface edge after removing the inside of the cutting surface edge with the cutting tool.

The cutting tool for removing the inside of the cutting surface edge moves laterally from one side of the cutting surface internal space toward the main body middle portion.

The cutting tool for removing the inside of the cutting surface edge may move transversely from one side of the internal space of the cutting surface to the middle portion of the main body and then laterally move from the middle of the main body side to the internal space of the cutting surface.

The cutting tool for cutting the cutting surface edge moves from one end of the cutting surface edge to the other end side of the cutting surface edge via an end portion formed between the other end of the cutting surface edge.

The cutting tool for cutting the cutting surface edge may move in a zigzag form when the cutting edge is formed between the one end of the cutting surface edge and the other end of the cutting surface edge.

The cutting tool may be a ball end mill.

The cutting of the main body may further include a main finishing step of mapping the cutting portion of the cutting surface edge.

The main body finishing step may further include a hole forming step of forming a hole in an upper surface of the main body.

The hole forming step may further include a body painting step of painting the surface of the body.

The main body painting step may further include a pad coupling step of coupling the pad to the bottom of the main body.

In the integrated roof rack manufacturing method according to the present invention, after cutting the edge of the cutting surface after removing the cutting surface edge in the main body cutting step, the cutting area is minimized compared to the surface cutting of the entire cutting surface, which is required for cutting the cutting surface. Since the time can be minimized, the manufacturing efficiency can be increased, and a large amount of worker injury can be prevented due to the contact of the cutting part during product handling, and the weight can be reduced, thereby reducing the weight of the product.

1 is a schematic process diagram of a method for manufacturing an integrated roof rack according to the present invention.
Figure 2 is an exemplary view for explaining the main body forming step in the integrated roof rack manufacturing method according to the present invention.
Figure 3 is an exemplary view for explaining the body bending step in the integrated roof rack manufacturing method according to the present invention.
Figure 4 is an exemplary view for explaining the main body cutting step in the integrated roof rack manufacturing method according to the present invention.
Figure 6 is an exemplary view showing a cutting surface by the main body cutting step in the integrated roof rack manufacturing method according to the present invention.
Figure 6 is an exemplary view for explaining the removal of the inside of the cutting surface edge by the main cutting step in the integrated roof rack manufacturing method according to the present invention.
Figure 7 is another exemplary view for explaining the removal of the inside of the cutting surface edge by the main cutting step in the integrated roof rack manufacturing method according to the present invention.
Figure 8 is an exemplary view for explaining the cutting surface edge cutting by the body cutting step in the integrated roof rack manufacturing method according to the present invention.
Figure 9 is another exemplary view for explaining the cutting surface edge cutting by the body cutting step in the integrated roof rack manufacturing method according to the present invention.
10 is an exemplary view for explaining a hole forming step in the integrated roof rack manufacturing method according to the present invention.
Figure 11 is an exemplary view for explaining the pad coupling step in the integrated roof rack manufacturing method according to the present invention.
Figure 12 is an exemplary view for explaining the cutting body cut surface in the conventional integrated roof rack manufacturing method.

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

As shown in FIG. 1, the integrated roof rack manufacturing method according to the present invention includes a main body forming step S1, a main body bending step S2, a main body cutting step S3, and a main body cutting step S4.

The main body forming step (S1) is an extrusion molding the main body 10 in the form of a tube by an extruder (not shown).

At this time, as long as the extruder is capable of extruding the main body 10 in the form of a tube, it may be of any conventional structure and manner.

The main body bending step (S2) is for bending the front and rear ends of the main body 10 extruded in the form of a tube by a banding machine (not shown).

At this time, the banding machine may be any structure and method of the usual as long as it allows the front and rear ends of the main body 10 to be bent at a constant curvature.

The main body cutting step S3 cuts front and rear ends of the main body 10 bent with a cutting tool (not shown).

At this time, the cutting tool may be of any conventional structure and method as long as it can smoothly cut the front and rear ends of the main body 10.

In the main body cutting step S4, the cutting surface 10a of the main body 10 is cut by the cutting tool 100.

The main cutting step (S4) as described above is preferably cut the edge of the cutting surface (10a) after removing the inside of the edge of the cutting surface (10a) with the cutting tool (100).

Since the inside of the cutting surface 10a edge is removed in the main body cutting step S4, only the edge of the cutting surface 10a can be cut afterwards, so that the cutting area can be minimized, thereby reducing the time required for cutting. Not only is it minimized, but the weight is reduced by the amount corresponding to the removal area, i.e., the inner edge of the cutting surface 10a, so that the product is lighter, and the injuries of the operator due to the cutting part contact are largely prevented.

At this time, the cutting tool 100 for removing the inner edge of the cutting surface 10a is moved laterally from one side of the inner space of the cutting surface 10a toward the middle of the main body 10.

Therefore, when the diameter of the cutting tool 100 is equal to the width of the inside of the edge of the cutting surface 10a, removal of the inside of the edge of the cutting surface 10a is possible through one movement of the cutting tool 100. Do.

In addition, the cutting tool 100 for removing the inside of the edge of the cutting surface 10a moves laterally from one side of the internal space of the cutting surface 10a to the middle portion of the main body 10, and then the middle of the main body 10. It is possible to move laterally from the negative side to the inner space side of the said cutting surface 10a.

Accordingly, the diameter of the cutting tool 100 is increased by the cutting surface 100 by repeating the lateral movement of the cutting tool 100 toward the middle portion of the main body 10 and the movement of the cutting tool 100 toward the inner space side of the cutting surface 10a. 10a) The cutting tool 100 may remove the inner edge of the cutting surface 10a even if it does not reach the width of the inner edge.

The cutting tool 100 for cutting the edge of the cutting surface 10a is cut through an end portion 11 formed between one edge of the cutting surface 10a and the other end of the edge of the cutting surface 10a. The surface 10a edge is moved to the other end side.

Therefore, cutting of the entire edge of the cutting surface 10a is possible through one movement of the cutting tool 100.

In this case, the cutting tool 100 for cutting the edge of the cutting surface 10a may move in a zigzag form when passing through the distal end portion 11.

Therefore, even if the width of the distal end 11 is wider than the diameter of the cutting tool 100 or the distal end 11 is formed in a curved shape, cutting of the distal end 11 by the movement of the cutting tool 100 is performed. It is possible.

On the other hand, if the cutting tool 100 in the main cutting step (S4) to be able to smoothly cut the cutting surface (10a) may be any conventional structure and method, but preferably a ball end mill. .

Ball end mills are formed of various diameters, even if the main body 10 is formed in a variety of standards by selecting the ball end mill according to the main body 10 specifications by the cutting surface (100) by the cutting tool ( 10a) Edge inside removal and edge cutting are easy.

And the main body cutting step (S4) may further include a main body finishing step (S5) for mapping the cutting portion of the edge of the cutting surface (10a) after.

By the main body finishing step (S5), the burrs generated on the cutting edges of the cutting surface 10a are removed, thereby improving product quality.

In addition, the main body finishing step S5 may further include a hole forming step S6 of forming a hole 12 on an upper surface of the main body 10.

As the hole 12 is formed on the upper surface of the main body 10 by the hole forming step S6, a tool (not shown) is inserted through the hole 12 to penetrate the lower surface of the main body 10. The main body 10 can be fixed to the vehicle roof panel (not shown) by fastening a nut (not shown) to a bolt (not shown).

In addition, the hole forming step S6 may further include a main body painting step S7 for painting the surface of the main body 10 thereafter.

As the surface of the main body 10 is coated by the main body painting step S7, the beauty of the product appearance is improved.

In addition, the main body painting step S7 may further include a pad combining step S8 for coupling the pad 20 to the bottom surface of the main body 10.

As the pad 20 is coupled to the bottom surface of the main body 10 by the pad coupling step S8, water and foreign substances are prevented from flowing between the main body 10 and the vehicle roof panel.

Hereinafter, the integrated roof rack manufacturing method through the integrated roof rack manufacturing method according to the present invention will be described in detail.

First, the main body 10 in the form of a tube as shown in FIG. 2 is molded by the extruder.

That is, the main body forming step (S1) in the present invention is carried out.

At this time, the extrusion molding continuously discharged from the extruder is cut to a predetermined length, the main body 10 is formed to a constant length.

Next, the front and rear ends of the main body 10 extruded in the form of a tube are bent by the banding machine.

That is, the main body bending step (S2) in the present invention is carried out.

In this case, the banding machine has a constant shape after bending by bending the front and rear ends of the main body 10 with a constant curvature.

Next, the front and rear ends of the main body 10 bent as shown in FIG. 4 by the cutting tool.

That is, the main body cutting step (S3) in the present invention is carried out.

At this time, the cutting tool cuts the lower end of the front and rear end portions of the main body 10 by an inclination corresponding to the inclination of the front and rear end portions of the vehicle roof panel. It is relatively tightly seated on the upper surface of the vehicle roof panel.

Next, the cutting surface 10a formed in the shape as shown in FIG. 5 is cut by the cutting tool 100.

That is, the main body cutting step (S4) in the present invention is carried out.

In this case, the cutting tool 100 cuts the edge of the cutting surface 10a after removing the inside of the edge of the cutting surface 10a.

That is, as shown in FIG. 6, the cutting tool 100 moves laterally from one side of the inner surface of the cutting surface 10a toward the middle portion of the main body 10 (as indicated by a moving arrow). 10a) the inner edge is removed, and then the cutting tool 100 is formed between the one end of the cutting surface 10a and the other end of the cutting surface 10a edge as shown in FIG. 8. The entire section of the edge of the cutting surface 10a is cut by moving (11) to the other end side of the cutting surface 10a through the edge (shown by the moving direction arrow).

Here, the cutting tool 100 for removing the inner edge of the cutting surface 10a is moved laterally from one side of the inner space of the cutting surface 10a to the middle portion of the main body 10 as shown in FIG. 7. Thereafter, the main body 10 may be moved laterally (indicated by a moving arrow) from the middle part side of the main body 10 to the inside of the cutting surface 10a. By repeating this, the diameter of the cutting tool 10 is changed to the cutting surface 10a. The cutting tool 100 can remove the inside of the cutting surface 10a even if it is less than the width of the inside of the edge.

And the cutting tool 100 for cutting the edge of the cutting surface (10a) may move in a zigzag form (shown in the direction of the arrow) when passing through the distal end 11, as shown in Figure 9, the distal end Even if the width of 11 is wider than the diameter of the cutting tool 100 or the distal end 11 is formed in a curved shape, the distal end 11 can be cut by the cutting tool 100.

As described above, after the inside of the edge of the cutting surface 10a is removed by the main body cutting step S4, the entire cutting surface 10a of the main body 10 is cut as the edge of the cutting surface 10a is cut. Since the cutting area is minimized, the time required for cutting the cutting surface 10a of the main body 10 can be minimized, thereby increasing the manufacturing efficiency and inducing the injury of the operator due to the contact of the cutting area when handling the product. It can prevent a considerable part, and the weight can be reduced and a weight can be reduced.

On the other hand, when performing the main body finishing step (S5) after the main body cutting step (S4), it is possible to remove the burrs and the like generated in the cutting edge portion of the cutting surface (10a).

When the hole forming step S6 is performed after the main body finishing step S5, the hole 12 may be formed on the upper surface of the main body 10 as illustrated in FIG. 10. The main body 10 can be fixed to the vehicle roof panel by inserting the tool through the tool.

In addition, when the main body painting step (S7) is performed after the hole forming step (S6), the beauty of the product appearance can be improved.

In addition, when the pad bonding step (S8) is performed after the main body painting step (S7), the pad 20 is located on the bottom surface of the main body 10 as shown in Figure 11 the vehicle roof panel When the main body 10 is seated, it is possible to block water or foreign substances from flowing through the main body 10 and the vehicle roof panel.

In the integrated roof rack manufacturing method according to the present invention as described above, the edge of the cutting surface (10a) after cutting the inner edge of the cutting surface (10a) in the cutting step (S4), the cutting surface (10a) ) Since the cutting area is minimized compared to the entire surface cutting process, the time required for cutting the cutting surface 10a can be minimized, thereby increasing the manufacturing efficiency and causing injury to the operator due to contact with the cutting part when handling the product. Can be prevented to a considerable extent, and the weight is reduced, so that the product can be made lighter.

As described above, the present invention is not limited to the above-described embodiments, and may be changed within the scope not departing from the gist of the present invention as claimed in the claims, and such changes are defined by the following claims. It is within the protection scope of the invention.

10, 10 ': main body 10a: cutting surface
11 terminal 12: hole
20 panel 100 cutting tool
S1: main body forming step S2: main body bending step
S3: main body cutting step S4: main body cutting step
S5: main body finishing step S6: hole forming step
S7: body painting step S8: pad bonding step

Claims (10)

A main body forming step of extruding the main body in the form of a tube by an extruder;
A main body bending step of bending the front and rear ends of the main body extruded in the form of a tube with a bending machine;
A main body cutting step of cutting the front and rear ends of the main body bent with a cutting tool at an inclination corresponding to the inclination of the front and rear ends of the vehicle roof panel;
And a main body cutting step of cutting the cutting surface of the main body by using cutting tools having different diameters.
In the cutting of the main body, the cutting surface edge is cut after removing the inside of the cutting surface edge with the cutting tool.
The cutting tool for removing the inside of the cutting surface edge has a diameter equal to the inside width of the edge of the cutting surface, so that the cutting surface edge may be moved once in a transverse direction from one side of the cutting surface internal space toward the middle of the main body. Remove the inside,
The cutting tool for cutting the edge of the cutting surface has a diameter smaller than the inner width of the edge of the cutting surface through a curved end portion formed between one end of the cutting surface edge and the other end of the cutting surface edge. Cutting the cutting surface edge while moving to the other end side of the cutting surface edge, when the coarse end portion of the integrated vehicle roof rack manufacturing method to move in a zigzag form.
delete The method of claim 1,
The cutting tool for removing the inside of the cutting surface edge is moved in the transverse direction from one side of the cutting surface internal space to the main body side, and laterally moved from the main body middle side to the cutting surface internal space side. Roof rack manufacturing method.
delete delete The method of claim 1,
The cutting tool is a ball rack end mill is an integrated vehicle roof rack manufacturing method.
The method of claim 1,
The main cutting step further comprises a main body finishing step of mapping the cutting portion of the cutting surface edge thereafter.
The method of claim 7, wherein
The body finishing step further comprises a hole forming step of forming a hole in the upper surface of the body after the integrated vehicle roof rack manufacturing method.
The method of claim 8,
The hole forming step further comprises a body painting step of painting the surface of the body after the integrated vehicle roof rack manufacturing method.
The method of claim 9,
The main body painting step further comprises a pad coupling step of coupling the pad to the bottom surface of the main body.
KR1020160028214A 2016-03-09 2016-03-09 manufacturing method of one body type roof lack KR102039773B1 (en)

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