KR20120124264A - Forming Machine For Pipes Being Used For Muffler Of Vehicle - Google Patents

Forming Machine For Pipes Being Used For Muffler Of Vehicle Download PDF

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Publication number
KR20120124264A
KR20120124264A KR1020110042058A KR20110042058A KR20120124264A KR 20120124264 A KR20120124264 A KR 20120124264A KR 1020110042058 A KR1020110042058 A KR 1020110042058A KR 20110042058 A KR20110042058 A KR 20110042058A KR 20120124264 A KR20120124264 A KR 20120124264A
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KR
South Korea
Prior art keywords
block
pipe
forming
molding
fixing
Prior art date
Application number
KR1020110042058A
Other languages
Korean (ko)
Inventor
강승구
Original Assignee
주식회사한우공영
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 주식회사한우공영 filed Critical 주식회사한우공영
Priority to KR1020110042058A priority Critical patent/KR20120124264A/en
Publication of KR20120124264A publication Critical patent/KR20120124264A/en

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    • 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
    • B21D11/08—Bending by altering the thickness of part of the cross-section of the work
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/04—Stamping using rigid devices or tools for dimpling
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

The present invention relates to a pipe molding machine for molding a pipe installed inside a silencer of a vehicle to have a unique cross-sectional shape. The composition is; A first fixed block 7 fixed to the upper surface of the work table 3; A cylindrical auxiliary block 9 fixed to the first fixed block 7 and having a guide groove 11 provided therein; A forming block 13 coupled to each guide groove 11 of the auxiliary block 9; A spring member 21 installed between the forming block 13 and the auxiliary block 9; The through-hole 25 is provided in the center to be coupled to the outer surface 19 of the forming block 13 is coupled and at the same time the pipe (P) moving block 23 is fitted; It characterized in that it comprises a moving block starting means.

Description

Forming Machine For Pipes Being Used For Muffler Of Vehicle}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe molding machine, and more particularly, to a pipe molding machine for molding a pipe installed inside a silencer of a vehicle to have a unique cross-sectional shape.

With the continuous development of automotive technology, vehicle noise is gradually decreasing. The explosion sound of the automobile engine is greatly reduced through the exhaust pipe and the muffler (muffler), and the noise effect varies depending on the structure or type of the silencer. The muffler has been developed with the focus on the reduction of harmful gases in the past, but in recent years, development has been made to reduce the noise of passenger cars.

Vehicle silencers, especially exhaust pipes installed therein, are as shown in FIG. 1. Exhaust pipe 100 has a portion 102 is sharply reduced in cross section, which serves to disperse the noise through the throttling action of the exhaust gas. The exhaust pipe 100 is also called an inner pipe.

In order to mold the exhaust pipe 100, a pipe forming machine has been used in the related art. Conventional exhaust pipe molding machine; A moving block moved back and forth in parallel with the upper surface of the work table by the cylinder; A jaw consisting of three or four jaws that compress the pipe as it is narrowed as being installed on the moving block so as to be narrowed or widened in the radial direction; It is fixed to the worktable and includes a fixed block for causing the jaw to be pressed in the radial direction by frictional movement with the tapered outer surface of the jaw by the operation of the cylinder.

According to this configuration, the position of the pipe is inevitably moved along with the moving block in the forming process. Therefore, it was difficult to fix the pipe and it was difficult to form the pipe accurately at the point to be molded. Therefore, conventional molding machines have been commonly used for forming only the ends of pipes. Since the pipe is moving, it takes a lot of time to install the pipe in the molding machine, there is also a problem that productivity is reduced.

An object of the present invention for the above problem is to provide a pipe silencer for a vehicle silencer that can accurately mold the desired point along the longitudinal direction of the pipe. Furthermore, the object of the present invention is to improve productivity due to the easy-to-use structure.

The above object, the first fixed block is fixed to the upper surface of the work surface; A cylindrical auxiliary block fixed to the first fixing block and having a guide groove extending radially in several places along the circumferential direction; Forming by pressing the outer peripheral surface of the pipe, it is coupled to each guide groove of the auxiliary block so as to be retracted or open along the extending direction of the guide groove, the forming block having an outer surface is an inclined surface; A spring member installed between the molding block and the auxiliary block to apply a force in a direction in which the molding block is elastically opened; A through block provided at a center thereof to be coupled to the outer surface of the forming block and to be fitted at the same time to allow the pipe to be fitted therein; a moving block to retract the forming block in proportion to the depth of engagement with the forming block; It is achieved by a pipe silencer for a vehicle silencer, characterized in that it comprises a moving block starting means for transferring the moving block in a direction parallel to the upper surface of the work table.

According to a feature of the invention the moving block starting means; A second fixed block installed on the upper surface of the work table in parallel with the first fixed block at a position opposite to the moving block with respect to the first fixed block; It is installed to be maintained in the horizontal direction with the work table by the second fixing block, one end is connected to the hydraulic cylinder installed inside the molding machine body and the other side includes a pair of guide rods respectively connected to both sides of the moving block Can be.

Also as means for fixing a pipe in forming; A pedestal installed in front of the moving block to support a pipe from below; Above the pedestal, it may include a clamper for pressing and fixing the outer circumferential surface of the pipe together with the pedestal while operating by a link mechanism actuated by a cylinder.

In addition, molding adjustment means for adjusting the molding degree of the molding block by adjusting the operating distance of the movable block is further provided; The molding adjusting means may include two position sensors installed on the movement path of the movement block.

According to the above configuration, there is provided a pipe molding machine for a vehicle silencer that can accurately mold the desired point along the longitudinal direction of the pipe. Since the position of the pipe is kept constant during molding, there is no risk of work, and further it is possible to improve productivity.

1 is an exemplary view of a pipe formed by the pipe silencer for a vehicle silencer of the present invention.
2 is a perspective view of a pipe molding machine for a vehicle silencer according to an embodiment of the present invention. 3 is a perspective view of a main part, and FIG. 4 is a partially exploded perspective view of the main part.
FIG. 5 is a front view of a pipe silencer for a vehicle silencer according to an embodiment of the present invention, FIG. 6 is a plan sectional view taken along line AA of FIG. 3, and FIG. 7 is a plan sectional view showing an operating state.

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

The molding machine main body 1 provides a worktable 3 corresponding to the waist height of an operator, and an operation part 5 such as a switch for operating the molding machine is provided in the main body 1. The first fixing block 7 is fixed upright to the upper surface of the work table (3).

A cylindrical auxiliary block 9 is fixed to the first fixed block 7. The auxiliary block 9 is provided with a guide groove 11 extending radially in several places along the circumferential direction. As shown, a total of four guide grooves 11 are provided at intervals of 90 °. The number of guide grooves 11 will be determined according to the shape to be molded. The guide groove 11 is preferably made of at least a radially symmetrical form.

Each of the guide grooves 11 is fitted with a molding block 13 so as to be movable along the extension direction of the guide grooves 11, that is, the radial direction of the auxiliary block 9. The forming block 13 is formed by pressing the outer circumferential surface of the pipe P, so that the forming block 13 can be retracted or opened while being moved together along the extension direction of the guide groove 11. One end of the forming block 13 is provided with a coupling part 15 which is unevenly coupled to the guide groove 11, and the other end is provided with a molding part 17 contacting the pipe. According to this embodiment, the molded part 17 has the shape of a square pyramid, but the shape of the molded part 17 may vary depending on the shape to be molded.

The outer surface 19 corresponding to the shoulder of the forming block 13 is an inclined surface, the inclination direction and the inclination angle of the inclined surface are constant in all the forming blocks 13. The jaw forming block 13 has a configuration similar to a jaw for pressing and fixing a drill in a cutting tool.

A spring member 21 is installed between each forming block 13 and the auxiliary block 9. The spring member 21 may be a coil spring as shown and causes the forming block 13 to elastically open.

The moving block 23 is fitted to the outer surface of the forming block 13 to be coupled. The moving block 23 is also a cylindrical shape in which a through hole 25 is provided at the center. The pipe can be fitted into the through hole 25.

The inner circumferential surface 27 (see FIG. 6) of the moving block 23 is in surface contact with the outer surface 19 of the forming block 13, and the friction surface should be supplied with lubricant. The forming block 13 is retracted in proportion to the coupling depth of the forming block 13 and the moving block 23. This coupling depth corresponds to the moving distance of the moving block 23 in the horizontal direction.

A moving block starting means for feeding the moving block 23 along a direction parallel to the upper surface of the work table 3 is provided. The movable block activating means is installed on the upper surface of the worktable 3 in the position opposite to the movable block 23 with respect to the first fixed block 7. The second fixed block 7 is installed in parallel with the first fixed block 7. )and; It is installed to be maintained in the horizontal direction with the worktable 3 by the second fixing block 29, one end is connected to the hydraulic cylinder (not shown) installed inside the molding machine main body 1 and the other side is the moving block 23 It includes a pair of guide rods 31 connected to both sides of the). The guide rod 31 is slidably maneuvered through the second fixing block 29 via the bearing member 33.

The guide rod 31 is started by the hydraulic cylinder to selectively couple the movable block 23 and the forming block 13. By this action, the pipe P located at the center of the forming block 13 is press-molded by an external force as shown in FIG. 7.

Although general hydraulic cylinders are used to generate a large force, in some cases, a pneumatic cylinder, an electric motor, or a hydraulic motor may be used as a power source.

A large side force is applied to the first fixed block 7 during molding, and a pair of braces 35 are installed between the first fixed block 7 and the second fixed block 29 to withstand the side force. In some cases, it may be possible to move the position of the first fixing block 7. To this end, the length of the brace 35 can also be varied.

While forming the pipe (P) may be held by the operator by hand, in accordance with an embodiment of the present invention, the pipe fixing means is further provided in consideration of safety and convenience.

Pipe fixing means are also installed on the workbench. Pipe fixing means for supporting the pipe (P) from the bottom includes a pedestal 37 is installed in front of the moving block 23, and a clamper 39 is installed on the pedestal. The clamper 39 presses and fixes the outer circumferential surface of the pipe P together with the pedestal 37 while operating in a lever manner by a link mechanism operated by a cylinder.

The pipe fixing means also serves as a standard or jig. The worker can always fix the pipe which is supplied by using the pipe fixing means at a certain position, thereby forming a quick and accurate point.

According to another embodiment of the present invention, by adjusting the working distance of the moving block 23, molding adjustment means for adjusting the molding degree of the molding block 13 is further provided. The molding adjusting means includes two position sensors 41, 43 or a proximity sensor, which are installed on the movement path of the moving block, and an installation bracket 45 for installing the position sensor. The distance between the position sensors 41 and 43 is adjustable. The position sensors 41 and 43 generate a signal for switching the operating direction of the hydraulic cylinder for activating the moving block 23.

One ; Main body 3; bench
5; Switch 7, 29; 1st, 2nd fixed block
9; Auxiliary block 11; Guide groove
13; Molding block 15; Engaging portion
17; Molding part 21; Spring member
23; Moving block 25; Through hole
27; Inner circumference 29; 2nd fixed block
31; Guide rod 35; bracing
37; Pedestal 39; Clamper
41,43; Position sensor 45; Sensor mounting bracket

Claims (4)

A first fixed block 7 fixed to the upper surface of the work table 3; A cylindrical auxiliary block 9 fixed to the first fixing block 7 and having a guide groove 11 extending radially in several places along the circumferential direction; Compressing and molding the outer circumferential surface of the pipe (P), it is coupled to each guide groove 11 of the auxiliary block (9) to be retracted or open along the extension direction of the guide groove 11, the outer surface ( A forming block 13 whose inclined surface is 19; A spring member 21 installed between the forming block 13 and the auxiliary block 9 to apply a force in a direction in which the forming block 13 is elastically opened; The through hole 25 is provided at the center to be coupled to the outer surface 19 of the forming block 13 and to allow the pipe P to be fitted at the same time, which is proportional to the depth of engagement with the forming block 13. A moving block 23 for retracting the forming block 13 to be retracted; And a moving block driving means for transferring the moving block (23) along a direction parallel to the upper surface of the work table (3).
The method of claim 1, wherein the moving block driving means; A second fixing block 29 installed on the upper surface of the work table 3 in parallel with the first fixing block 7 at a position opposite to the moving block 23 with respect to the first fixing block 7; ; It is installed to be maintained in the horizontal direction with the worktable 3 by the second fixing block 29, one end is connected to the hydraulic cylinder (not shown) installed inside the molding machine main body 1 and the other side is the movement Pipe silencer for a vehicle silencer, characterized in that it comprises a pair of guide rods (31) connected to both sides of the block (23), respectively.
The method of claim 1, further comprising: As means for fixing a pipe in forming; A pedestal (37) installed in front of the movable block (23) to support the pipe (P) from below; Vehicle noise, characterized in that it comprises a clamper (39) for pressing and fixing the outer peripheral surface of the pipe (P) together with the pedestal 37 while operating by a link mechanism actuated by a cylinder on the pedestal (37). Pipe forming machine.
The method of claim 1, further comprising: Molding adjustment means for adjusting the molding degree of the molding block 13 by adjusting the working distance of the movable block 23 is further provided; The molding adjusting means includes a pipe positioner for a vehicle silencer, characterized in that it comprises two position sensors (41, 43) installed on the movement path of the moving block (23).
KR1020110042058A 2011-05-03 2011-05-03 Forming Machine For Pipes Being Used For Muffler Of Vehicle KR20120124264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110042058A KR20120124264A (en) 2011-05-03 2011-05-03 Forming Machine For Pipes Being Used For Muffler Of Vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110042058A KR20120124264A (en) 2011-05-03 2011-05-03 Forming Machine For Pipes Being Used For Muffler Of Vehicle

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KR20120124264A true KR20120124264A (en) 2012-11-13

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104384328A (en) * 2014-10-28 2015-03-04 安徽加文汽车零部件有限公司 Muffler cylinder drawing die
CN108080458A (en) * 2017-12-13 2018-05-29 南京航空航天大学 A kind of three axis free bend part progressive molding device and methods
CN108856428A (en) * 2018-07-12 2018-11-23 苏州驰夫电子科技有限公司 A kind of stamping equipment for shelf processing
CN111496036A (en) * 2020-05-06 2020-08-07 汪煜 Multi-stage bending die for sheet metal processing
CN111922198A (en) * 2020-08-20 2020-11-13 台州华诚模具有限公司 Full-automatic production equipment of empennage barrel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104384328A (en) * 2014-10-28 2015-03-04 安徽加文汽车零部件有限公司 Muffler cylinder drawing die
CN108080458A (en) * 2017-12-13 2018-05-29 南京航空航天大学 A kind of three axis free bend part progressive molding device and methods
CN108080458B (en) * 2017-12-13 2019-11-29 南京航空航天大学 A kind of three axis free bend part progressive molding device and methods
CN108856428A (en) * 2018-07-12 2018-11-23 苏州驰夫电子科技有限公司 A kind of stamping equipment for shelf processing
CN111496036A (en) * 2020-05-06 2020-08-07 汪煜 Multi-stage bending die for sheet metal processing
CN111922198A (en) * 2020-08-20 2020-11-13 台州华诚模具有限公司 Full-automatic production equipment of empennage barrel

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