KR100422752B1 - Particular shaped press article's molding method and that device - Google Patents

Abstract

According to the present invention, a component having a length of a guide piece bent longer than the length of a notched space in a press-worked product which is completed by notching the center of the entire area and then bending and forming it to both sides, such as a component of an optical device configured in a CD room, is made of one material. It relates to a method and apparatus for forming a press-formed special shape to be integrally formed in the.

That is, by inserting the iron plate into the notching device 10 to operate the press 3 to notch the iron plate (P) to complete the notching process, transfer the notched portion to the bending device 20 to the bending piece 11 in the bending process After forming, the work is sequentially processed so that other deformations other than the shrinkage deformation to be deformed to the part through the shrinkage device 30 having the same configuration and operation principle are divided into primary, secondary and tertiary again. After contracting (Aa) to complete the shrinkage process and transfer to the piercing device 40, which is the next step, the piercing process is carried out, and then the workpiece Aa is separated from the iron plate P by the blanking device 50, which is the next step. It relates to a molding method and apparatus thereof completed in A).

Description

Particular shaped press article's molding method and that device

The present invention relates to a method and apparatus for forming a press-formed product of a special shape, and more particularly, a space notched in a press-processed product which is completed by notching the central part of the entire area, such as a component of an optical device configured in a CD room, and bending it to both sides. The present invention relates to a method and apparatus for forming a specially shaped press-worked product which allows a part having a length of a bent guide piece longer than the length of a to be integrally formed from one material.

Conventionally, it is impossible to manufacture press-formed products whose length of the bent surface is longer than the length of the space formed by bending, so when using parts such as optical device parts, separate them into left and right parts and produce them as separate parts. It was used as a part of the shape required by fastening the laminate with bolts or by bending bending on only one side and forming a workpiece by fastening a separate part with bolts on the opposite side.

In the above methods, the manufacturing process is made separately, so the equipment is increased, and the structure is formed by combining two or more components. Therefore, the joining process is not only added, but the rigidity of the components is gradually weakened according to the use time. At the same time, parts that require precision increase the volume and weight of the parts due to the complex coupling structure, which cannot maintain the required size, and the appearance is poor and the precision is reduced.

In particular, it is difficult to remove dust and foreign matter attached to the surface of the parts when using it as an electric or electronic precision part, and there have been problems such as deterioration of the product performance and failure as the product is used.

Due to this problem, the production equipment must be installed twice, resulting in inefficient maintenance due to over-installation, productivity deterioration due to overlapping production process, and replenishment of management personnel. Due to the deterioration of quality, the competitiveness in price or quality is lost, and when used as parts of electronic products, international competitiveness is declining even at the national level, which is highly dependent on export because it affects not only the quality or price competitiveness of the finished product itself but also the design. Even though it is accompanied by considerable difficulties, the related field has not been able to suggest an appropriate solution until now.

Therefore, in the present invention, to solve all the problems as described above, the progressive mold capable of bending and shrinking the material to enable the ultra-compact design can be installed and installed in the press to work step by step and efficient step by step It is completed as a technical task with the focus on making the production parts integrally formed and minimizing the time required for production while producing high-quality products with robustness, uniformity and stability.

1 is a process chart showing a preferred embodiment of the present invention

Figure 2 is a product produced through the process of the present invention

3 is a conventional product formed and used by a conventional method

Figure 4 (a) is a plan view of the iron plate after each step of the present invention.

(B) is sectional drawing of the processed goods and components which passed each process of this invention.

5 (a) (b) is a configuration and operation of the shrinkage device of the present invention

Figure 6 (a) (b) is an illustration of the contraction of a part of the contraction apparatus of the present invention

7 is a block diagram of a press equipped with a progressive mold of the present invention

Explanation of the major symbols used in the main part of the drawing

A: Part Aa: Workpiece

P: Iron plate 1: Progressive mold

2: feeder device 10: notching device

11: Bending piece 12, 13: notching area

14: connection surface 20: banding device

30: Shrinkage device 30a: Lower device

30b: upper part 31: lower hold

32: fixed block 33: die hold

34: cam slide 34a: slope

34b: step 35: die

35a: Guide Hole 36: Cam Drive

37: stripper 37a: guide pin

38: Punch die 39: Upper hold

40: piercing device 41: hole

50: blanking device Sa, Sb: spring

3: Press 21: pitch hole

The method of forming a press-formed product of a special shape of the present invention is roughly described as a notching process, a bending process, a shrinkage process, a piercing process, and a blanking process, respectively;

It is injected from one side of the progressive mold (1) formed at regular intervals for each process according to the parts to produce the iron plate (P) as raw materials, and the press work is continuously transferred to the feeder device (2) at regular intervals. In a typical progressive working process for producing the parts to be completed by completing the work for each process at the same time while repeatedly executing;

Insert the iron plate into the notching device 10 to operate the press 3 to notch the iron plate P to complete the notching process, and transfer the notched portion to the bending device 20 to transfer the bending piece 11 to the bending process. After forming, the work is sequentially processed so that other deformations other than the shrinkage deformation to be deformed to the part through the shrinkage device 30 having the same configuration and operation principle are divided into primary, secondary and tertiary again. After contracting Aa to complete the shrinking process and transferring to the piercing device 40 which is the next step, the piercing process is performed, and then the workpiece A is removed from the iron plate P by the blanking device 50 which is the next step. ) To complete the process.

The above is only a schematic and comprehensive description of the workflow, which will be described in detail based on the detailed description of each process and the specific configuration and operation according to the accompanying drawings.

First, the notching process includes a notching area 12 of the bending piece 11 to be bent and a notching area 13 which becomes the outer surface of the part after completion of the process at regular intervals in a predetermined shape. Except for 14), each cutting process is performed by the notching device 10. FIG.

That is, the notching device 10 is formed at one edge as in the structure of a conventional progressive mold 1 and straightens the external shape of the notching area 12 formed at the outer corner of the bent piece 11 after completion of the notching process. It is configured to form an ellipse in which the center is widened.

As such, when the notching area 12 is formed, it is possible to shrink more naturally in a constant direction without changing the thickness of the material during the shrinkage in the subsequent shrinkage process, thereby preventing the defect of the component (A) in advance. .

In addition, the bending process is a process of bending the bending pieces 11 formed in the notching area 12 transferred after the notching process is completed to configure the shape of the parts, which is also performed through the conventional bending device 20.

Banding device 20 is a conventional banding device for seating the finished workpiece (Aa) to be bent in the lower mold and transfers the upper mold to the lower to push the bending piece 11 to the lower mold by the desired area (bending) 20).

The shrinkage process is a process of shrinking the workpiece A by dividing the same process into primary, secondary, and tertiary, in which the workpiece Aa, which has undergone the above-described bending process, is formed on both sides of the iron plate P by the feeder device 2. It is carried out through the shrinkage device 30 as a process of shrinking the workpiece (Aa) without changing the thickness of each of the workpieces in order while being sequentially transferred by the interval of the pitch hole (21).

That is, the shrinkage device 30 seats the die hold 33 on the upper surface of the lower holder 31 on which the fixed block 32 is fixed at a lower interval as shown in FIGS. A die 35 having a stepped portion 34b and a cam slide 34 having an inclined surface 34a and a guide hole 35a formed therein. The cam drive 36 having the slide surface 36a on the upper portion of the lower device 30a is seated on the punch die 38 so that a space is formed by the spring Sb. The upper device (39) is fixed to the upper holder (39) and has a structure that constitutes the upper device (30b) having a guide pin (37a).

Shrinkage device 30 is configured as described above is the upper device (30b) by pressing when the workpiece (Aa) after the bending process is automatically seated on the lower device (30a) of the shrinkage device 30 by the feeder device (2) The whole is lowered, and at this time, the guide pin 37a descends through the guide hole 35a, and the lower surface of the stripper 37 first contacts the upper surface of the die 35 and the upper surface of the workpiece Aa, and the upper device ( When press pressure is continuously applied to 30b), the spring Sa of the upper device 30b is compressed and all upper devices 30b except for the stripper 37 are lowered, and the slide surface 36a of the cam drive 36 is lowered. The inclined surface 34a of the cam slide 34 is brought into contact with each other, and the cam drive 36 is lowered with continuous pressure to move the cam slide 34 to the center thereof. In this case, the workpiece Aa is formed by the step 34b. The cam slide 34 is contracted by the feeding distance.

At this time, according to the law of conservation of mass, there should be a change in the expansion or the density of the material by the amount of shrinkage, which is changed up and down by the cam slide 34 and the stripper 37 in close contact with the upper and lower surfaces of the workpiece Aa. That is, the bending and the change in thickness can be prevented by the configuration of the above-described shrinkage device 30, and in the notching process, since the outer surface of the notching surface 12 is formed in an ellipse, it always expands outward in the perpendicular direction that shrinks. To do that.

Therefore, the semi-finished product is always formed in the same shape after the completion of the shrinkage process to minimize defects and to shorten the process after being performed later.

In the primary, secondary and tertiary shrinkage processes, the above-described shrinkage device 30 is installed for each process, and all configurations are the same, but the distance between the cam drive 36 and the cam slide 34 is ordered. Is characterized by narrowing according to the order in which the processed product (Aa) after the first shrinkage process is precisely seated on the lower device (30a) of the secondary shrinkage device 30 to perform the secondary shrinkage process again 3 The contraction process will finish the contraction process.

The piercing process is a process of creating a hole 41 in the workpiece Aa that has undergone the shrinkage process and is formed in the piercing apparatus 40;

In addition, the blanking process is a process of forming the finished product (Aa) into the component (A) as the last step of all processes, and is a process of separating the finished component (A) from the iron plate (P) as a raw material. By the blanking device 50.

The piercing device 40 and the blanking device 50 are formed in a conventional structure, in particular the blanking device 50 to remove the expanded portion by the amount to be shrunk in the shrinkage process so that not only the outer shell of the product but also the inside It is to use a conventional blanking device 50 that can handle the deformed portion neatly

The continuous operation performed in the apparatus of each of the above processes is to allow various parts of the sensing senses and limit switches to be automatically and continuously processed through the electric / electronic control system with an electric valve. This is to use a separate control device by applying a control method that can be commonly used in automation systems, etc. will not be described in detail. (Not shown)

As described in detail above, the method and apparatus for forming a press-formed product of a special shape of the present invention is a progressive mold capable of bending and shrinking a material so that the parts to be produced may be integrally formed and a solid and compact design may be possible. Is installed in the press and is designed to work step by step and efficiently, minimizing the production time and producing high quality products uniformly and reliably, thereby simplifying parts and reducing costs, especially when applied to electronic products. As design is possible, it is easy to improve the design, function and performance of the product that the designer wants. Therefore, the invention is expected to greatly contribute to the development and application of electronic components in the future.

Claims (2)

Integral progressive mold in which the notching device 10, the bending device 20, the piercing device 40, and the blanking device 50 are each composed of one side from the one side in the order of the process at regular intervals. The feeder device 2 is formed on one side of the press 3 equipped with (1) to transfer the iron plate P, which is a raw material, to the progressive mold 1 through the feeder device 2 to carry out work for each process. In a typical press working process to produce the parts to be completed through; Between the banding device 20 and the piercing device 40 of the progressive mold 1, each of the shrinking devices 30 arranged in order by dividing the primary, secondary and tertiary to form a sequentially processed workpiece ( A method for forming a press-formed specially shaped workpiece, which is characterized by a shrinkage process in which Aa) is sequentially transferred to the feeder device 2 and divided into primary, secondary, and tertiary, respectively, to shrink the workpiece Aa stepwise without change in thickness. The method of claim 1, The step 34b which seats the die hold 33 on the upper surface of the lower holder 31 to which the fixed block 32 is formed at a predetermined interval on the lower side and maintains a constant interval by the spring Sa on the upper side thereof. And a cam drive having a slide surface 36a on the upper portion of the lower device 30a formed by mounting a die 35 having a cam slide 34 having an inclined surface 34a and forming a guide hole 35a. (36) is mounted on the punch die 38 so as to form a space formed by a spring (Sb) to the upper holding (39) fixed to the upper holding (39) with a guide pin (37a) Press-formed molding apparatus of a special shape, characterized in that the shrinkage device 30 is configured by mounting the upper device (30b).