JPH10296351A - Processing of plate-shaped parts - Google Patents

Abstract

(57) [Summary] [Problem] A plate-shaped component in which the bonding strength of a wire joint to a plate-shaped component and a peripheral frame is enhanced, and a required external shape can be obtained simply by separating the plate-shaped component with a cutting tool such as a nipper. To obtain a processing method. SOLUTION: A large number of plate-like parts 2, 2A partially connected to a peripheral frame 6 by a plurality of wire joints 4, 4A, 5, 5A, respectively, are punched on the surface of a metal plate base material 1, 1A. In the method of processing a plate-shaped part to be processed,
The wire joints 4 and 4A for connecting the peripheral frame 6 to the outer lines other than the corner portions 1a and the round outer portions of the plate-like components 6 and 6A, and one of the wire joints 4 and 4A facing the wire joints 4 and 4A. A joint portion punched hole 3, 3A having an opening width narrower than the width of the corresponding wire joint 4, 4A. A method for processing a plate-shaped part for cutting a portion from the outer shape line of 2, 2A to the joint punched hole 3, 3A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of processing a plate-like part by punching a large number of plate-like parts from a metal plate base material.

[0002]

2. Description of the Related Art As is well known, when manufacturing a large number of plate-like parts, a metal plate base material such as aluminum, stainless steel, brass, or copper is placed on an NC indexing table capable of accurately determining the position. Then, while moving the punching die at a constant pitch, a large number of plate-shaped parts are punched out of the metal plate base material.

FIG. 5 and FIG. 6 show a case where a large number of plate-shaped parts B are punched on the surface of a brass metal plate base material A, and the plate-shaped parts B are partially formed in a round outer shape. it has a structure having a b _1. That is, each plate-shaped component B having the rounded outer portion b ₁ is stamped on the surface of the metal plate base material A in a state where it is partially connected to the peripheral frame C by the plurality of wire joints D ₁ and D _2. It is punched with a die. Therefore, each of the plate-shaped components B partially supported by the plurality of wire joints D ₁ and D ₂ with respect to the metal plate base material A is formed by punching all the plate-shaped components B using a nipper or the like. In this case, there is a problem in the processing of the wire joints D ₁ and D ₂ at the time of the removal. More specifically, the wire joint D ₁ installed at the corner of the plate-shaped component B has a cutting line E ₁ inclined by approximately 45 degrees with respect to the outline b ₂ intersecting at a substantially right angle.
Accordingly, if the roots of the wire joints D ₁ and D ₂ are cut with a nipper or the like, a part shape having no obstacle in relation to other parts is obtained.

[0004]

[SUMMARY OF THE INVENTION However, the wire joint D ₂ arranged in straight portion near the rounded outer shape portion b _1, when some even outline b ₂ remain outside, with other components In many cases, the intervening function suffers a failure. Therefore, it is not sufficient to simply cut off the peripheral frame C using a nipper or the like. Therefore, the wire joint D ₂ close to the round shape outer portion b _1, after cut by a nipper or the like, the finishing step of cutting a portion of the remaining wire joint D ₂ from the cut line E ₂ are required, remaining the same Wire joint D ₂
Or finish with a grinder or the like, or, though to finish cut the wire joint D ₂ remaining in the laser processing machine from the cut line E _2, Anyway, because of the remaining cutting line E ₂ of the finishing process, the product cost Is expensive.

Further, as shown in FIG. 7, in the case of large large platelike component B ₁ of the area, perimeter frame in a number of wire joints D ₃ that are substantially evenly distributed along the outline C
Becomes to support the large plate-shaped component B _1, the number of these wires joints D ₃ is linear outline b against
Since would be located in _2, the small wire joint D ₃ detach easily width, and ended up breaking before disconnecting by nippers or the like, may function as the wire joints is lost, reverse Assuming that the wire joint D ₃ has greater strength,
The finishing process of ₃ becomes troublesome. An object of the present invention is to enhance the bonding strength of a wire joint to a plate-shaped component and a peripheral frame in view of the above-described conventional position problem, and furthermore, only by separating the plate-shaped component with a cutting tool such as a nipper. Another object of the present invention is to provide a method of processing a plate-like component that can obtain a necessary outline.

[0006]

In order to achieve this object, the present invention provides a method for forming a plurality of plate-like parts partially connected to a peripheral frame by a plurality of wire joints, respectively, on a surface of a metal plate base material. In the method of processing a plate-shaped part to be punched into the wire joint, which connects the peripheral frame and the external line other than the corner part and the rounded external part of each plate-shaped part, and in a state facing these wire joints, A joint portion punched hole having a part formed inside the outline of each plate-shaped part and having an opening width smaller than the width of the corresponding wire joint, and The present invention proposes a method for processing a plate-shaped part that cuts a part of a joint part punched hole.

In the following description of a preferred embodiment of the present invention, it is assumed that at least a part of the wire joint and the punched hole of the joint portion are provided at a portion closest to a round outer shape portion of each plate-like component. In addition, the respective plate-shaped components are arranged on the surface of the metal plate base material in a state where the corresponding R-shaped external portions are concentrated, and the outer shape corresponding to the R-shaped external portion prior to punching of each plate-shaped component. The structure in which a part of the peripheral frame is punched with a punch having the following will be described.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. FIGS. 1 and 2 show a method of processing a plate-like component according to a first embodiment of the present invention. The feature of this embodiment is that a part of a plate-like component 2 punched from a metal plate preform 1 is formed by joint punching. The point is that it is supported by the peripheral frame 6 by the wire joint 4 provided with the hole 3.

Although the plate-shaped part 2 according to the first embodiment is partially supported by the peripheral frame 6 by using the wire joint 5 at the corner 1a and the wire joint 4 closest to the round outer part 1b. A joint punching hole 3 formed by a square punch hole on the inner side of the plate-like component 2 facing the wire joint 4 except for the corner 1a.
Is pierced. The opening width L ₁ of these joint punched holes 3 is smaller than the width L ₂ of the corresponding wire joint 4, and the outer line 3 a of the joint punched hole 3 is smaller than the outer line 2 c of the plate-shaped component 2. Is also located at a position closer to the inside of the plate-shaped part 2.

The method for processing a plate-like part according to the first embodiment is as follows.
With the configuration as described above, the corner portion 1 of the plate-shaped component 2 is formed.
The wire joint 5 corresponding to “a” can obtain a predetermined outer shape only by cutting diagonally, as described in detail in the conventional description, even if the wire joint 5 has a certain width and a large strength. The supporting strength of the plate-shaped component 2 with respect to the frame 6 can be maintained. Since the wire joint 4 located at the position closest to the radius-shaped outer portion 1b can be formed of a wide member having sufficient support rigidity, the large-sized plate-shaped component 2 can be formed.
However, even if the wire joint 4 is arranged on the straight portion of the outer shape line 2c, no special finishing is required.

[0011] That is, as shown enlarged in FIG. 2, when the peripheral frame 6 disconnecting the plate-like element 2 is nippers from outline 2c toward the joint perforations 3, obliquely by the cutting line E ₃ And cut it into a plate-like part 2
Since a part of the wire joint 4 protruding outside the outer shape line 2c is not left, the outer shape line 2c having a desired outer size can be obtained without performing any post-processing.

FIG. 3 and FIG. 4 show a second embodiment of the present invention for removing the material of the metal plate base material 1A with little waste.
Each plate-like component 2A in this embodiment is arranged on the surface of the metal plate base material 1A in a state where the corresponding rounded outer portions 1b are concentrated.

That is, the plate-like component 2A in the second embodiment
As shown in FIG. 3, is divided by a punching slot 7 that defines the outline 2c of the adjacent plate-like component 2A.
Between the adjacent plate-like parts 2A, a wire joint 5A corresponding to the above-described corner part 1a and a round outer part 1 are provided.
b are connected to each other by a wire joint 4A closest to b. That is, a joint part punching hole 3A is formed inside the plate-shaped component 2A facing the wire joint 4A closest to the rounded outer portion 1b of each plate-shaped component 2A. Prior to the punching of the slot 7, the two wire joints 4A, 5A, and the joint punched hole 3A, as shown in FIG. 4, a metal plate base material corresponding to the R-shaped outer portion 1b of each concentrated plate-like component 2A. Part of 1A is plate-like part 2A
Punched with a punch with an array pitch of
A large number of round opening portions 8 having a constant pitch are formed. Since the punch used in this step has a four-sided outer surface having a peripheral surface having the same shape as the R-shaped outer portion 1b, a punching die for punching each plate-shaped part 2A is not suitable. It is not necessary to form the rounded outer portion 1b again.

The method for processing a plate-like part according to the second embodiment is as follows.
With such a configuration, the round opening 8 is punched in advance on the surface of the metal plate base material 1A, and the punching slot 7, both wire joints 4A and 5A, and the joint punching hole 3A are punched by a punching die later. Because it is punched, the metal plate base material 1A
The arrangement density of the plate-shaped parts 2A with respect to the above can be improved, and less wasteful material removal can be realized.

Of course, according to the structure of the second embodiment, as in the case of the first embodiment described above, the plate-like parts 2A are connected by a plurality of wire joints 4A having enhanced support rigidity. Before the removal of the plate-shaped component 2A from the peripheral frame 6A, it is possible to prevent a part of the wire joint 4A from being broken and finishing the broken portion from being required later.

[0016]

As is apparent from the above description, according to the present invention, a part of the outer surface of each plate-shaped part is placed inside the outer shape of the plate-shaped part while facing the wire joint connecting the plate-shaped part and the peripheral frame. Is formed, the plate-shaped part can be machined without cutting work at all, only by cutting the plate-shaped part from the peripheral frame. In addition, according to the method for processing a plate-shaped part of the present invention, prior to punching of a wire joint and a punched hole of a joint, punching a round opening corresponding to a concentrated round outer shape portion is wasteful. The material can be removed with as little as possible.

[Brief description of the drawings]

FIG. 1 is a plan view showing a relationship between a plate-shaped component and a peripheral frame according to a first embodiment of the present invention.

FIG. 2 is an enlarged plan view of a main part of FIG.

FIG. 3 is a plan view showing a relationship between a plate-shaped component and a peripheral frame according to a second embodiment of the present invention.

FIG. 4 is an explanatory view of a processing step according to the second embodiment.

FIG. 5 is a plan view showing a relationship between a conventional plate-shaped component and a peripheral frame.

FIG. 6 is an enlarged explanatory view of a step of cutting a plate-shaped part in the conventional processing method.

FIG. 7 is an explanatory view of a conventional method for processing a large plate-shaped part.

[Explanation of symbols]

E ₃ cutting line 1, 1A Metal plate base material 2, 2A Plate-shaped component 3, 3A Joint punching hole 4, 4A, 5A Wire joint 6, 6A Peripheral frame 8 Round opening

Claims (3)

[Claims] 1. A method of processing a plate-shaped component, wherein a plurality of plate-shaped components each partially connected to a peripheral frame by a plurality of wire joints are stamped on a surface of a metal plate base material. A wire joint for connecting the peripheral frame to an outer line other than the corner portion and the round outer portion of the plate-shaped component, and a part of the wire joint facing the wire joint is positioned inside the outer line of each plate-shaped component. And a joint portion punched hole having an opening width narrower than the width of the corresponding wire joint, and cutting a portion from the outline of the corresponding plate-shaped component to the joint portion punched hole. Processing method for plate-shaped parts. 2. The processing of a plate-shaped component according to claim 1, wherein at least a part of the wire joint and the punched hole of the joint portion are provided at a portion closest to a round outer shape portion of each plate-shaped component. Method. 3. The respective plate-shaped parts are arranged on the surface of the metal plate base material in a state where the corresponding rounded outer parts are concentrated, and are formed on the rounded outer parts prior to the punching of each plate-shaped part. 3. The method according to claim 1, wherein a part of the peripheral frame is punched by a punch having a corresponding outer shape.