JP3006029U - Cutting type for square notch - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a cutting die for a square notch that keeps the manufacturing cost low, has good workability, and is easy to store. [Structure] At both ends of the die blade body 3 of the die part A, four types of total 8 types of corner notch die blades 31 composed of convex arcs having different curvatures are provided at the four corners, and the punch of the punch part B is punched. Blade 1
4 consisting of concave arcs with different curvatures on 4 side surfaces on both ends of 2
A total of 8 types of square notch die blades 128 are provided, the die blade and the punch blade are paired with each other, and 8 pairs of the die blade and the punch blade constitute 8 types of cutting blades, The pair of die blade and punch blade correspond to each other in the vertical direction at the set position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a corner notch cutting die for performing corner notch machining of different shapes on the outer peripheral corners of a plate to be processed such as a sheet metal.

[0002]

[Prior art]

 For example, when machining the corners of a rectangular sheet metal, it is possible to notch each corner into an arc shape with various different curvatures, a V-shape notch, or a straight notch (chamfering). It is well known that this is known. When performing such a corner notch process, preparing a cutting die for notching into a predetermined shape at each corner not only increases the cost because the die cost is high, but also increases the cost. It is not preferable from the point of work efficiency because it requires a cutting die replacement work. Therefore, as a cutting die that solves this kind of problem, conventionally, a single cutting die has been proposed in which a corner of a sheet metal is cut into various shapes (Fuji Kiko Co., Ltd., Product name "Kadoal C"). This cutting die can have eight kinds of different corner cutouts. The concrete structure consists of a die and a punch. On the die, the first and second die blades consisting of two different kinds of square plates can be selectively held in the holding holes, and the punch has a rotary shaft that rotates about the axis as a return spring. It stands up from the upper surface of the die by the spring force, and eight kinds of punch blades are screwed to the outer circumference of this rotary shaft at equal intervals. Die blades having different curvatures are formed at the four corners of the first die blade body, and die blades having different curvatures from the four types of die blades are also formed at the four corners of the second die blade body. To explain the method of use, first place the cutting die on the workbench of the press machine and install the die. Then, when using the first die blade to perform four types of square notch processing, after placing the first die blade on the die, cut the selected die blade of the first corner, for example. It is set to the cutting position, fixed, and the rotary shaft is rotated to align the first punch blade body corresponding to the first die blade with the cutting position. After that, the head of the rotary shaft is pressed by the ram of the press to lower the rotary shaft, and the first die blade and the punch blade of the punch blade cut the corner of the sheet metal to obtain the desired shape. Make a square notch. In the same manner, the remaining second to fourth die blades are used to perform square notch processing with different shapes. When the second die blade is used, it is replaced with the first die blade and square notch processing is performed in the same manner as above. As described above, the first and second die blades can perform the square notch processing with a total of eight different shapes of four kinds.

[0003]

[Problems to be solved by the device]

 However, according to the conventional example, it is necessary to separately prepare two types of die blades in order to perform the eight types of square notch processing with different shapes. The work of exchanging the blade is inevitable, and in addition, the confirmation work is required at that time, which makes the work troublesome and the workability deteriorates. Furthermore, one of the die blades may be lost, which makes storage difficult.

An object of the present invention is to provide a cutting die for a corner notch which keeps the manufacturing cost low, has good workability, and is easy to store.

[0005]

[Means for Solving the Problems]

 The first feature of the present invention consists of a die part and a punch part. The die part is provided with a die guide on the die base, and the die blade body positioned at the set position by the die guide is the die base. The punch part is mounted on a table, and the punch part is provided with a punch guide on the die base and a return spring body, and the punch blade body is placed on the return spring body. The body is positioned at a set position by the punch guide and is guided for vertical movement. The die blade body has four types of different shapes on each of the upper and lower sides, for a total of eight types of square notch die blades. The punch blade body has a total of eight types of punch blades for square notches, four types having different shapes on the upper and lower sides, respectively, and the die blades for each square notch and the square notches. The punch blades for each other Eight pairs of die blades and punch blades make a pair to form eight types of cutting blades. The pair of square notch die blades and square notch punch blades are set. The position corresponds to the vertical direction. When the planar shape of the die blade for square notch of one die blade body is, for example, a convex arc shape, a V shape, an inverted V shape, or a straight line shape, the square notch of the punch blade body of the other pair is formed. The plane shape of the punch blade for use is a concave arc shape, a concave V shape, an inverted concave V shape, a straight line shape, etc., and also as a shape corresponding to the die blade, when the plane shapes of the die blade and the punch blade are described above. The configuration may be reversed. The second feature of this invention is similar to the first feature in that it is composed of a die part and a punch part, but the die part is provided with a die guide on the die base, and this die guide A die blade positioned at a set position is placed on the die base, and the punch section has a punch guide provided on the die base and a return spring body made of a coil spring. A punch blade is placed on the return spring body, and the punch blade is positioned at a set position by the punch guide and is guided to move up and down. 8 types of die blades for corner notches in total of 4 types consisting of convex arcs with different curvatures are formed at the four corners of the die, and the die blades for angle notch have different curvatures from each other. 4 perimeters on each side In total, 8 types of punch blades for square notches, which consist of 4 concave concave arcs with different curvatures, are formed. The die blades for square notch and the punch blades for square notch are paired with each other, and The pair of die blades and punch blades make up eight types of cutting blades, and the pair of square notch die blades and square notch punch blades correspond vertically in the set position. Is to be. The third feature of the present invention is basically the same as the second feature, and is composed of a die part and a punch part. The die part is a die guide and a die holder on a die base. A flat rectangular storage hole consisting of and is provided, and a die blade that can be taken out and held at the set position is provided in the storage hole. The punch section is provided on the die base by a die guide. A flat rectangular storage hole is provided, a return spring body consisting of a coil spring is arranged on the die base in the storage hole, and a punch blade body that can be taken out into the storage hole and is held at the set position is provided. , The punch blade is mounted on the return spring body, and the die blade body is formed into a plane quadrangle with both upper and lower end surfaces being parallel planes, and convex arcs with different curvatures are formed at the four corners on the upper and lower sides. 4 types of total 8 types of square notch The blades are formed so that each corner notch die blade has a different curvature from each other, and the punch blade body is formed into a flat quadrangular shape on both upper and lower end surfaces and has a concave shape with different curvatures on the outer peripheral 4 side surfaces on the upper and lower sides. Four types of punch blades for square notches, which are four types of circular arcs, are formed in total, and the die blades for square notch and the punch blades for square notch are paired with each other to form eight pairs of dies. The blade and the punch blade constitute eight types of cutting blades. The pair of the square notch die blade and the square notch punch blade correspond to each other in the vertical direction at the set position. The storage hole of the part can guide the die blade to the set position by a die guide, and the storage hole of the punch part can guide the punch blade to the set position as well as up and down. Especially.

[0006]

[Action]

 4 types of die blades can be selected by changing the set position of the die for the square notch of the die blade, and by reversing the die blades, 4 types of die blades can be selected. The die blade can be selected, and along with this selection, the set positions of the punch blades for the square notch of the punch blade are aligned, and inverted as necessary to align them.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 4, the main cutting die includes a die portion A and a punch portion B. The configuration of the die unit A will be described with reference to FIGS. 1 to 4, the die part A is composed of a die base 1, a die guide 2, and a die blade body 3. On the die base 1, plate-shaped die guides 2 and 2 are provided in a positional relationship such that their tip ends are orthogonal to each other, that is, an arrangement relationship in which a C-shape is formed. Both die guides 2 are fixed to the die base 1 with screws (not shown) screwed from the bottom surface of the die base. Further, on the die base 1, die holders 4, 4 are fixed inside the die guides 2, 2 so as to be orthogonal to the die guides. A space portion having a rectangular shape in a plane surrounded by the die guide 2 and the die holder 4 is a storage hole 5 for storing the die blade body 3. As shown in FIGS. 5 to 8, the die blade body 3 is a block body having a substantially square shape with both upper and lower surfaces being parallel planes and a rectangular parallelepiped shape as a whole. The die blade 3 is removably housed in the housing hole 5, and the upper surface thereof is slightly higher than or flush with the upper end surface of the die holder 4, and is set slightly higher in the examples shown in FIGS. 2 and 3. The die blade 3 has four types of corner notch die blades 31, 32, 33, 34 having different shapes cut at each corner on the upper surface thereof. The die blades 31 to 34 are formed in a convex arc having a predetermined curvature. In the illustrated example, the first die blade 31 is 8 mm, the second die blade 32 is 5 mm, and the third die blade is 33 is 15 mm, and the fourth die blade 34 is 12 mm in arc shape. On the upper surface of the die blade body 3, a dimension 6 indicating the curvature of the first to fourth corner notch die blades 31 to 34 is engraved at a position corresponding to each die blade. Further, four kinds of corner notch die blades 35 to 38 having different shapes are formed at the respective corners of the lower surface of the die blade body 3 similarly to the die blade bodies 31 to 34. In the illustrated example, the fifth die blade is formed. 35 is 6.5 mm, the sixth die blade 36 is 3 mm, the seventh die blade 37 is 20 mm, and the eighth die blade 38 is a convex arcuate blade set to 10 mm. On both upper and lower sides of the die blade body 3, the die blades 31 and 35, the die blades 32 and 36, the die blades 33 and 37, and the die blades 34 and 38 are continuous in a facing manner in the height direction. In this manner, the die blade body 3 is formed with four types of total 8 types of square notch die blades 31 to 38 having different shapes at the respective corners on the upper and lower sides. A bolt insertion hole 39 through which the fixing bolt 7 (FIG. 1) penetrates is passed through the center of the die blade body 3. The male screw at the tip of the fixing bolt 7 is screwed into the screw hole 1a formed in the die base 1 to fix the die blade on the die base. Note that the die blade 3 does not necessarily need to be fixed by the fixing bolt 7 when it is fitted and held in the storage hole 5 without a gap as shown in FIG. Therefore, the bolt insertion hole 39 is provided as needed.

A specific configuration of the punch portion B will be described with reference to FIGS. 1 to 4 and 9 to 13. The punch portion B includes punch guides 8, 9, and 10, a return spring body 11, and a punch blade body 12. The punch guides 8 and 9 are assembled on the die base 1 in a box shape having an opening at the upper side and the front side (on the side of the die blade 3), and the space of the plane rectangular shape surrounded by each punch guide is formed by the punch blade 12. A storage hole 13 is formed so that the storage hole 13 can be taken out. The punch guide 8 on the side surface and the punch guide 9 on the back surface are screwed to the die base 1. Further, flat trapezoidal front punch guides 10 are screwed to the upper front end surfaces of both punch guides 8, respectively. A return spring body 11 composed of a coil spring is arranged on the die base 1 in the accommodation hole 13, and a punch blade body 12 is mounted on the return spring body. The punch blade body 12 is located above the die base 1 by a predetermined distance by the spring force of the return spring body 11. The punch blade body 12 is a substantially rectangular parallelepiped block body having upper and lower parallel planes as shown in FIGS. 9 to 13. Punch blades 121, 122, 125, 126 are vertically cut from the center of each side of the lower end toward the upper end on four side faces of the outer periphery of the punch blade 12. These punch blades are formed in the shape of the die blades 31, 32, 35, 36, in the illustrated example, a concave arcuate groove shape having an inner surface shape that matches the convex arcuate shape of a predetermined curvature. The first punch blade 121 corresponds to the first die blade 31, the fifth punch blade 125 corresponds to the fifth die blade 35, the sixth punch blade 126 corresponds to the sixth die blade 36, and the lower blades correspond to each other. The punch blade and the upper punch blade form a cutting blade that cuts a corner of the plate P to be processed. Punch blades 123, 124, 127, 128 are vertically cut from the center of each side of the upper end toward the lower end on the four side surfaces of the outer periphery of the punch blade body 12. The configuration of each of these punch blades is similar to that of the punch blades 121, 122, 125, 126, and is grooved so as to match the shape of the die blades 33, 34, 37, 38. The third punch blade 123, the fourth punch blade 124, the seventh punch blade 127, and the eighth punch blade 128 correspond to the die blades 33, 34, 37, 38, respectively, and a punch blade serving as an upper blade and a lower blade. A cutting blade for forming a square notch in the plate to be processed P is formed in cooperation with the die blade. The four side surfaces of the punch blade 12 on the upper and lower sides, the punch blades 128 and 121, the punch blades 124 and 125, the punch blades 123 and 122, and the punch blades 127 and 126 are located opposite to each other and in the height direction of the punch blade body. One groove is continuously formed. In this way, the punch blade is formed with a total of eight types of punch blades 121 to 128, four types on each of the upper and lower sides, and each punch blade constitutes one of the corresponding die blades and each set. There is. Further, screw holes 12a are opened from the center of the upper and lower surfaces of the punch blade 12 toward the inside, and the screw portion of the pressing body 14 which also serves as a pressing knob is screwed into each screw hole. When the ram of the press machine is driven, the pressing body 14 is pushed downward against the spring force of the return spring body 11, and therefore the punch blade body 12 is pushed downward by the punch guides 8 to 10. It When the pressing force is released, the punch blade body 12 is guided upward by the punch guides 8 to 10 by the restoring force of the return spring body 11 and returns to its original position. By attaching the pressing body 14, the punch blade 12 can be easily inserted into and removed from the storage hole 13, and there is an advantage that the ram does not directly contact the punch blade 12 at the time of pressing to prevent damage. The body is not essential to this device.

The usage method will be described. The main cutting die is placed on a work table of a press machine, for example, and the die base 1 is installed via fixing means. Then, the die blade body 3 and the punch blade body 12 are put into the storage hole 5 of the die base 1 and the storage hole 13 of the punch portion B 1. At this time, one of the die blades 31 to 38 of the die blade body 3 is selected and aligned with the set position, and the punch blades 121 to 128 of the punch blade body 12 corresponding to the selected die blade are aligned with the set position. . In the example of FIG. 1, the punch blade 121 corresponds to the die blade 31. As described above, the die blades 31 and 38 of the die blade body 3 and the punch blades 121 to 128 of the punch blade body 12 are vertically positioned so that the blades to be used are positioned at the set positions, and the die blade body and the punches are punched. Set with the body. The die blade 3 is fixed on the die base 1 with the fixing bolts 7 if necessary.

After the square notch processing is completed by using one set of die blade and punch blade, the blade is set to the set position by rotating or reversing the die blade body 3 and the punch blade body 12. Also make a square notch. A processing example is shown below. In the above example, the die blade 31 and the punch blade 121 are used as a set to perform the square notch processing. For example, when the die blade 32 and the punch blade 122 are used as a set to perform the square notching processing, the die blade body 3 is formed as shown in FIG. It is sufficient to rotate the die blade 31 to the set position by rotating it 90 degrees counterclockwise from the position, and rotate the punch blade 12 180 degrees clockwise from the position in FIG. 1 to align the punch blade 122 with the setting position. Further, for example, when performing square notch processing with the die blade 33 and the punch blade 123 as a set, the die blade body 3 is rotated 180 degrees clockwise from the position in FIG. 1 to align the die blade 33 with the set position, and the punch blade body is By inverting 12 from the position shown in FIG. 1, the punch blade 123 is fitted to the set position. Further, for example, in the case where the die blade 37 and the punch blade 127 are combined to form a square notch, if the die blade body 3 is inverted from the position shown in FIG. Rotate 90 degrees clockwise from the position shown in FIG. 1 to match the set position.

In the above example, the case where the die blade body 3 having the die blades at the four corners is arranged on the die portion A side and the punch blade body 12 having the punch blades on the four side surfaces is arranged on the punch portion B side has been described. However, the arrangement of the blade body is reversed (the punch blade body having punch blades at the four corners is arranged on the die portion side, and the die blade body with die blades attached to the four side surfaces is arranged on the punch portion B side) It can be Further, although the die blades 31 to 38 at the corners of the die blade body 3 are convex arcs, all or arbitrary corners may be V-shaped, inverted V-shaped, linear, or the like.

[0012]

[Effect of device]

 According to this invention, by changing the set positions of the respective corner notch blades of the pair of die blade and punch blade, and by reversing the upper and lower sides of each blade, eight kinds of different shapes can be obtained. Since square notch processing is possible, there is no need to prepare two types of die blades for square notch as in the conventional cutting die, so the manufacturing cost can be reduced and the die blade for square notch can be manufactured. Since there is no need to replace the blade with another die blade, the work is easy and the storage is easy. Also, the die blade becomes thicker by providing the square notch die blades on both the upper and lower sides. Therefore, it is possible to process the wide range of the thickness of the work plate from thin to thick.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a front view showing an embodiment of the present invention.

FIG. 3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a plan view showing a state in which a die blade body and a punch blade body are removed.

FIG. 5 is a plan view of a die blade.

FIG. 6 is a back view of the die blade.

FIG. 7 is a front view of a die blade.

FIG. 8 is a right side view of the die blade.

FIG. 9 is a plan view of a punch blade.

FIG. 10 is a rear view of the punch blade.

FIG. 11 is a front view of a punch blade.

FIG. 12 is a rear view of a punch blade.

FIG. 13 is a right side view of a punch blade.

[Explanation of symbols]

 A Die part B Punch part 1 Die base 1a Screw hole 2 Die guide 3 Die blade 31 Die blade for square notch (first die blade) 32 Die blade for square notch (second die blade) 33 Die blade for square notch (Third die blade) 34 Square notch die blade (4th die blade) 35 Square notch die blade (5th die blade) 36 Square notch die blade (6th die blade) 37 Square notch die blade (No. 7 die blade) 38 square notch die blade (8th die blade) 4 die holder 5 storage hole 8 punch guide 9 punch guide 10 punch guide 11 return spring body 12 punch blade body 121 square notch punch blade (first punch blade) 122 Punch Blade for Square Notch (Second Punch Blade) 123 Punch Blade for Square Notch (Third Punch Blade) 124 Punch Blade for Square Notch (4th Punch Blade) 125 Punch Blade for Square Notch (Fifth Punch Blade) 126 Notch punch blades (Sixth punch blade) 127 Tsunokiri lacks punch blades (7 punch blade) 128 Tsunokiri lacks punch blades (8 punch blade) 13 housing hole

Claims (3)

[Scope of utility model registration request] 1. A die part and a punch part, wherein the die part is provided with a die guide on a die base, and a die blade positioned at a set position by the die guide is mounted on the die base. The punch portion is provided with a punch guide on the die base and a return spring body is provided, and the punch blade body is placed on the return spring body. The punch guide is positioned at a set position and is guided to move up and down. The die blade body has eight types of die for notches, four types having different shapes on each side. Yes, the punch blades have different shapes on the upper and lower sides.
A total of eight types of punch blades for square notches are formed, and the die blades for square notches and the punch blades for square notches are paired with each other to form eight pairs of die blades and punch blades. And 8 make up eight types of cutting blades, and the pair of square notch die blade and square notch punch blade are
Cutting die for square notch, which corresponds to the vertical position at the set position. 2. A die part and a punch part, wherein the die part is provided with a die guide on a die base, and a die blade positioned at a set position by the die guide is mounted on the die base. The punch portion is provided with a punch guide on the die base and a return spring body made of a coil spring, and the punch blade body is placed on the return spring body. The body is positioned at a set position by the punch guide and is guided to move up and down. The die blade body is composed of four types of convex arcs having different curvatures at the four corners on each of the upper and lower sides. Different types of square notch die blades are formed, and the square notch die blades have different curvatures from each other. The punch blade body is composed of concave arcs having different curvatures at four locations on the upper and lower outer peripheral portions. 8 types in total Forming a square notch punch blade, each of the square notch die blades and each of the square notch punch blades make a pair, and eight pairs of die blades and punch blades make eight types of cutting. The blades are made up of a pair of square notch die blades and square notch punch blades.
Cutting die for square notch, which corresponds to the vertical position at the set position. 3. A die portion and a punch portion, wherein the die portion is provided with a flat rectangular storage hole composed of a die guide and a die holder on a die base, and can be taken out into the storage hole at a set position. The punch part is provided with a flat rectangular storage hole on the die base by means of a die guide, and the punch part has a return spring formed of a coil spring on the die base. The punch blade body is provided with a spring body, which can be taken out into the storage hole and is held at the set position, and the punch blade body is placed on the return spring body. Both end surfaces are formed in parallel planes into a plane quadrangle, and four types of total of eight types of square notch die blades formed of convex arcs with different curvatures are formed at four corners on each side,
The corner notch die blades have different curvatures from each other, and the punch blade body has four types of concave and circular arcs having different curvatures on the upper and lower end surfaces of the outer peripheral surface of the four sides. A total of eight types of punch blades for square notches are formed. The die blades for square notch and the punch blades for square notch are paired with each other to form eight pairs of die blades and punch blades. Eight types of cutting blades are configured. The pair of square notch die blade and square notch punch blade are
The storage hole of the die part which corresponds in the vertical direction at the set position can guide the die blade body to the set position by a die guide, and the storage hole of the punch part sets the punch blade body to the set position. A cutting die for a square notch, which can be guided up and down as well as vertically.