KR20100106700A - Automotive rubber bushing is pipes and the manufacture method - Google Patents

Abstract

PURPOSE: A rubber bushing of a vehicle and a manufacture method thereof which can prevent scrapes in a blanking a material for a pipe is provided to improve durability by plastic processing a connector on both end of the pipe. CONSTITUTION: A manufacture method of a rubber bushing of a vehicle comprises next steps. A material for the pipe(10) having the width of the pipe for a rubber bushing is prepared at a coil and establishes the coil at a coil holder. Both ends of a pipe material are under a corner rounding process by passing a metal plate through a pressing roller(6).

Description

Automotive rubber bushing is pipes and the manufacture method

The present invention relates to a tube for a rubber bushing of a motor vehicle and a manufacturing method thereof, and more particularly, to shorten the manufacturing process of the tubular body constituting a rubber bushing for cushioning at a portion connecting each component of the motor vehicle, By preventing the loss of the metal sheet material, it is possible to significantly reduce the manufacturing cost of the rubber bushing for automobiles.

As is well known, rubber bushings of automobiles are parts used for cushioning the parts connecting automobiles to each other. The rubber bushings have various sizes and shapes. Cylindrical rubber is integrally coupled between them.

Looking at the method of manufacturing a small diameter tube or a large diameter tube in a rubber bushing of a vehicle having a conventional configuration as described above, first, a metal plate material having a predetermined thickness through a blanking process as shown in Figure 1 To prepare.

And, since the cut surface formed by the blanking process is sharp, if used as it is, the person handling the rubber bushing, such as the operator can be injured.

In addition, when installed and used in a car, the sharp part of the tube due to vibration during driving provides a main cause of the rubber breaking by friction with the rubber constituting the rubber bushing inserted for the purpose of absorbing vibration of the car. At the same time, there is a disadvantage that a rubber bushing mounted mount may be damaged and cause a serious accident.

In order to solve the above disadvantages, in order to remove the sharp portion (burr) formed by the blanking process, a separate chamfering (cornering) processing is performed.

 Such chamfering work requires a lot of worker input and equipment costs, and at the same time, the manufacturing cost is expensive due to poor workability. In particular, when preparing the tubular material 10 constituting the tubular body, as shown in FIG. As described above, since the blanking process is performed on the metal sheet 100, there are many problems such as economical loss due to loss of material due to scrap.

An object of the present invention is to devise to actively solve the conventional problems as described above, to significantly reduce the metal plate member constituting the rubber bushing body of the automobile, it can be manufactured more simply and efficiently By providing a method for providing a rubber bushing tube of an automobile at a low manufacturing cost, there is a purpose to enhance external competitiveness.

In order to achieve the above object, a tubular body for rubber bushing and a method for manufacturing the same according to the present invention are first provided with a coil material having a width equal to that of a rubber bushing tube in order to reduce a metal sheet material, After passing through a rolling device composed of a pressure roller capable of pressing both edges of the tube material and preparing a tube material in a predetermined shape and shape through a blanking device, the tube material is rubberd through a plastic working in a banding device. It is a feature of the present invention to complete a bushing tube.

According to the tubular body for rubber bushing of the present invention and the manufacturing method thereof according to the present invention as described above, since the tubular material having the same width as that of the rubber bushing body is used, no scrap occurs when blanking the tubular material so that the metal sheet material is used. There is a significant savings effect,

Both edges are rolled with a pressure roller, and a blanking process provides a material for the tubular body, while forming a coupling part at both ends and banding to manufacture a tubular body for rubber bushing by plastic working. And

In addition, since the whole process is made uniformly, it is easier and more efficient to manufacture, and thus, the rubber bushing body of the automobile can be provided at a low manufacturing cost, thereby increasing the external competitiveness.

 Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of a tubular body for a rubber bushing and a method of manufacturing the same according to the present invention.

Figure 2 is an illustration of a manufacturing apparatus for realizing a method for manufacturing a rubber bushing tube of an automobile according to the present invention, Figure 3 is a rolling material for the tubular body for manufacturing a rubber bushing tube of the automobile according to the present invention. Figure 4 is an illustration of a blanking and banding device for producing a rubber bushing body of the automobile according to the invention, Figure 5 is a perspective view showing a state before the bending of the rubber bushing body of the vehicle according to the invention, 6 is a perspective view of a rubber bushing tube of an automobile according to the present invention, Figure 7 is an exemplary view of a rubber bushing for automobiles produced by the present invention.

First, a manufacturing apparatus for realizing a method for manufacturing a rubber bushing tube of an automobile according to the present invention, the coil feeder 1, the rolling device (2) and the NC feeder device (3) for the movement of the tubular material, And a blanking device 4 and a bending device 5.

First process Tube  Material preparation process)

In order to reduce the material of the rubber bushing tubular body, a tubular material having the same width as that of the rubber bushing tubular body is provided as a coil, and installed in a coil holder for carrying out the present invention.

2nd process (rolling process)

The chamfer by rolling is completed by passing the rolling device 2 by the pressure roller 6 which can press both edges of the tubular material 10 prepared in the said 1st process.

3rd process ( Blanking  fair)

 Cutting while forming a coupling protrusion 11 and coupling grooves 12 for coupling to both ends of the tubular material 10 by bending through the mold of the blanking device.

4th process Banding  fair)

After preparing the tubular material 10 having the engaging projections 11 and the coupling grooves 12 formed at both ends in the process, the tubing 20 for the rubber bushing is completed by the bending device 5.

The overall movement of the plate for pipe in the process of the process is made through the NC feeder device (3).

The rubber bushing tube of the automobile according to the present invention as described above presses both edges of the tubular material 10 with a rolling device by a pressure roller, so that the metal structure becomes dense, thereby improving wear resistance and durability. However, the surface treatment is smoother than turning.

1 is an exemplary view for blanking a rubber bushing tube of a conventional vehicle

Figure 2 is an illustration of a manufacturing apparatus for realizing a method for manufacturing a rubber bushing tube of an automobile according to the present invention

Figure 3 is an exemplary view of rolling the tubular material for producing a tubular body for rubber bushing of the present invention

Figure 4 is an illustration of a blanking and banding device for producing a tubular body for rubber bushing of the present invention

Figure 5 is a perspective view showing a state before the bending of the rubber bushing tube of the vehicle according to the present invention

6 is a perspective view of a tube for a rubber bushing of a vehicle according to the present invention;

Figure 7 is an illustration of a rubber bushing for automobiles manufactured by the present invention

*** Explanation of symbols for main parts of drawing ***

1: coil holder

2: rolling equipment

3: NC feeder device

4: blanking device

5: banding device

10: tube material

11: coupling protrusion

12: coupling groove

Claims (2)

In order to reduce the material of the rubber bushing tube, the material for the tubular body having the same width as that of the rubber bushing tube is provided as a coil and installed on the coil holder: pressurizing while moving the metal plate by the NC feeder device Passing the rolling apparatus 2 by a roller to chamfer both edges of the tubular material by rolling; And cutting while forming coupling protrusions 11 and coupling grooves 12 at both ends of the tubular material 10 through a mold of the blanking apparatus. Rubber bushing tubular for automobiles, characterized in that by bending the tubing material through the banding device to combine the coupling projection 11 and the coupling groove 12 on both ends of the tubular material 10 to complete the rubber bushing tubular body. Manufacturing method. The rubber bushing body of claim 1, wherein both edges of the tubular material are rolled and formed by blanking and banding.

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