JP2918121B2 - Punch press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a punch press capable of performing punching, cutting, and forming on a sheet material.

(Prior Art) Conventionally, a processing portion of a turret punch press in an example of a punch press includes a rotatable upper turret as an upper mold holding member and a rotatable lower turret as a lower mold holding member. The upper turret is provided with a large number of upper molds detachably, and the lower turret is provided with a large number of lower molds detachably. When drilling and cutting the plate material, the upper turret and the lower turret are fitted with an upper die and a lower die for drilling. An upper mold and a lower mold for molding are mounted on the turret and the lower turret. Here, the forming process is not a meaning of the forming process in a narrow sense, but includes a harling process, a counter sink process,
This is a broadly defined forming process that includes half-shaft processing, bridge processing, and the like.

(Problems to be Solved by the Invention) However, in the conventional punch press as described above, cut-and-raise processing or the like in which the plate material protrudes relatively upward in the forming process cannot be performed on the plate material. .
This is because the cut-and-raised portion and the upper turret interfere with each other because the height interval between the upper turret and the lower turret is small. For that purpose, drilling processing on the plate material,
In the case where, for example, a cut-and-raise process is performed in addition to the cut-and-cut process, the cut-and-raise process must be performed by another machine, and there is a problem that the operation is complicated.

In view of the above, an object of the present invention is to provide a punch press capable of performing a forming process including a cut-and-raising process in addition to a punching process and a cutting process by the same punch press in order to solve the above problems. And

[Configuration of the invention]

(Means for Solving the Problems) In view of the above-described conventional problems, the present invention supports a first upper mold holding member that supports a plurality of first upper dies and a plurality of first lower dies. And a first ram capable of pressing the first upper mold is provided so as to be vertically movable, and the first upper mold and the first lower mold are provided. In a punch press provided with a movement positioning device for performing movement positioning of a plate material with respect to a processing position by a mold, a second upper die for forming the plate material at a position adjacent to the processing position. A second upper mold supporting member movably supported up and down and a second lower mold supporting member supporting the second lower mold are provided so as to be vertically opposed to each other, and the second upper mold is pressed against the second upper mold. A movable second ram is provided so as to be vertically movable, and the second upper mold supporting member A height position is provided higher than the first upper mold supporting member, and the second lower mold is provided so as to be able to protrude and retract from the upper surface of the second lower mold supporting member.

(Embodiment) The embodiment according to the present invention will be described with reference to the drawings.

Referring to FIG. 3, FIG. 1, and FIG. 2, the punch press 1 is moved forward and backward of the lower frame 3 (right and left in FIG. 3, front and back in FIG. 1, facing up and down in FIG. 1, and up and down in FIG. 2). The columns 5, 7 are integrally erected, and the upper frame 9 is attached to the columns 5, 7 to constitute the outside of the frame.

On the upper surface of the lower frame 3, there is provided a fixed table 11 for movably supporting the plate material W. The left and right sides of the fixed table 11 (front and back in FIG. 3 facing the paper surface, FIGS. 1 and 2). On both sides (left and right), movable tables 13 are provided via rails 15 so as to be movable in the front-rear direction.

A movement positioning device 17 is provided for positioning the plate material W on the fixed and movable tables 11 and 13 in the front-rear and left-right directions. That is, the first carriage 19 in the movement positioning device 17 is integrally attached to the movable table 13, and the first carriage 19 is moved right and left by the second carriage 23 provided with the clamp device 21 for gripping the plate material W. It is provided movably in the direction.

With the above configuration, the plate material W on the fixed and movable tables 11 and 13 is gripped by the clamp device 21. By moving the first carriage 19 in the front-rear direction and the second carriage 23 in the left-right direction, the plate member W can be moved and positioned at a predetermined position in the front-rear, left-right direction.

Referring to FIG. 1 and FIG. 2, the left and right portions of the fixed table 11 on the rear side (the back side facing the paper surface in FIG. 1 and the upper side in FIG. 2) side are formed with holes. A first processing unit 25 for performing a cutting process is provided, and a second processing unit 27 for performing a forming process is provided. Here, the forming process does not mean the forming process in a narrow sense, but means the forming process in a broad sense including cut-and-raise process, burring process, counter sink process, half shearing process, bridge process and the like.

An upper turret 29 as an upper mold holding member is rotatably provided on the upper frame 9 of the first processing portion 25 via a rotary shaft 31 as an upper mold holding member, and a first lower turret as a lower mold holding member is provided on the lower frame 3. 33 is provided rotatably via a rotating shaft 35. The first upper turret 29 and the first lower turret 35 are vertically opposed at a predetermined height interval, and the upper and lower turrets 29 and 33 are a first turret rotating device such as a servomotor (indicated pipeline). And rotate in the same direction in synchronization with each other.

The upper turret 29 is provided with a number of upper mold stations, and a first upper mold 37 for drilling and cutting is detachably attached to each upper mold station. The lower turret 35 is provided with a number of lower mold stations, and a first lower mold 39 for punching and cutting is detachably attached to each lower mold station. Note that the pair of first upper and lower dies 37 and 39 vertically facing each other have the same shape.

Further, a first ram 41 for pressing a predetermined first upper mold 37 is provided vertically vertically above the upper turret 31 so as to be vertically movable.

With the above configuration, the plate material W is positioned at a predetermined position between the upper turret 29 and the lower turret 33 by appropriately operating the movement positioning device 17. Before or almost simultaneously with the positioning, the first turret rotating device is appropriately operated to rotate the upper and lower turrets 29 and 33 so that the predetermined first upper molds 37 and 39 are moved to the first dies. Ram 41
In the vertical lower position. Then, by lowering the first ram 41, a predetermined first upper mold 37 is pressed, and a predetermined first upper mold 37 and a lower mold 39 are used to perform a desired drilling process on the plate W. It can be cut.

The upper frame 9 in the second processing section 27 has a second
A second upper turret 43 is rotatably provided as an upper mold holding member via a rotation shaft (not shown), and a second lower turret 45 is provided on the lower frame 3 as a second lower mold holding member. It is rotatably provided via a not shown). The second upper turret 43 and the second lower turret 45 are
The height interval between the second and upper turrets 43 and the second lower turret 45 is larger than the predetermined height interval between the first upper turret 29 and the first lower turret 33. In this embodiment, the height interval is, for example, twice the predetermined height interval. The second upper and lower turrets 4
Numerals 3 and 45 rotate synchronously in the same direction via a second turret rotating device (not shown) such as a servomotor.

The second upper turret 43 is provided with a number of upper mold stations, and a second upper mold 47 for molding is detachably attached to each upper mold station. The second lower turret 45 is provided with a number of lower mold stations, and a second lower mold 49 for molding is detachably attached to each lower mold station.

A second ram 51 is provided at a position vertically above the second upper turret 43 so as to be vertically movable by the action of hydraulic pressure in order to press a predetermined second upper mold 49 to perform a desired forming process. .

As an example of the second upper mold 47 and the second lower mold 49, details of the second upper mold 47 and the second lower mold 49 for performing the cutting and raising process will be described.

Referring to FIGS. 3 and 4, the second upper mold 49 includes a punch head 53, a punch body 57, a punch holder 59 integrally attached to the punch body 57, and the punch holder 59.
It has a punch chip 61 and a backup plate 63 which are integrally attached to the device. And the punch head
55 and a second upper turret 43 integrally attached to 55
In other words, a spring 67 is elastically mounted between them, that is, the second upper mold 49 is urged upward by the spring 67 to be provided.

The second lower mold 49 is provided with a recess 45 of the second lower turret 45.
The die holder 69 is supported by a, and a die chip 71 integrally attached to the die holder 69 is provided. Then, the work ejector 73 is provided in the die holder 69.
Are provided so as to be vertically movable, and a spring 75 is elastically mounted between the work ejector 73 and the die holder 69. Note that a spring 77 is elastically mounted between the concave portion 45a of the second lower turret 45 and the flange portion 69a of the die holder 69. In order to allow the second lower mold 49 located vertically below the second ram 51 to protrude and retract from the upper surface of the second lower turret 45, a piston rod 79 is vertically positioned below the second lower turret 45 in the lower frame 3. The provided vertical movement cylinder 81 is attached.

According to the above configuration, the second upper turret 43 and the second lower turret 45 are rotated by appropriately operating the second turret rotating device, so that a predetermined second upper mold 47 and a second lower mold are formed.
While positioning 49 at the vertical lower position of the second ram 51,
The plate material W is positioned between the second upper turret 43 and the second lower turret 45 by appropriately operating the movement positioning device 17.

Next, the vertical movement cylinder 81 is appropriately operated to
The second lower mold 50 located vertically below the 51 is protruded from the upper surface of the second lower turret 47. And the second
By lowering the ram 51 and pressing the punch head 53 of the predetermined second upper mold 47, the punch body 57 is lowered against the urging force of the spring 67, and the punch chip 61 and the backup plate 63 are lowered. . Punch punch 61
4, the plate material W is held by the work ejector 73 and the punch tip 61 as shown in FIG.
Next, the molding process is performed by raising the die chip 71 relatively to the punch chip 61. After the completion of the forming process, the work ejector 73 is raised by the elastic force of the spring 75, and the plate material W is released from the second lower mold 49.

Incidentally, the second upper turret 43 is, for example, disclosed in Japanese Patent Application Laid-Open No. 60-16771.
As shown in FIG. 3, a known tapping device is provided.

The operation of the present embodiment will be described based on the above configuration.

When performing drilling or cutting on the plate material W, the first positioning section 25 is operated by operating the movement positioning device 17 appropriately.
The plate material W is positioned between the first upper turret 29 and the second lower turret 33, and the first upper turret 29 and the first lower turret 33 are rotated by appropriately operating the first turret rotating device. The first upper mold 37 and the first lower mold 39 are positioned vertically below the first ram 41. Then, by lowering the first ram 41 and pressing a predetermined first upper mold 37, desired drilling or cutting can be performed on the plate material W.

In addition, when performing a forming process such as a cut-and-raise process on the plate material W, the movement positioning device 17 is appropriately operated to set the plate material W between the second upper turret 43 and the second lower turret 45 in the second processing portion 27. W and the second
Operate the turret rotating device appropriately to set the second upper turret 4
3. By rotating the second lower turret 45, the predetermined second upper mold 47 and the second lower mold 49 are positioned vertically below the second ram 51. Then, by lowering the second ram 51 and pressing the second upper mold 47, a desired molding process can be performed. Here, the height interval between the second upper turret 43 and the second lower turret 45 is relatively large with respect to the height interval between the first upper turret 29 and the first lower turret 33. On the other hand, even if cut-and-raised processing is performed, interference between the protruding portion and the second upper turret 43 is relatively small.

According to the present embodiment, the punch press 1
Since the first processing portion 25 for performing the cutting process and the second processing portion 27 for performing the forming process are separately provided, the plate material W
In contrast, when the forming process is performed in addition to the boring process or the cutting process, the working efficiency is relatively high.
Also, the second upper turret 43 in the second processing section 27 and the second upper turret 43
Because the height interval between the lower turret 45 and the lower turret 45 is relatively large, when the plate material W is cut and raised, there is relatively little interference between the protrusion and the second upper turret 43,
The plate material W is relatively rarely damaged. Hereinafter, a second embodiment will be described.

Referring to FIGS. 5 and 6, the configuration of the punch press 83 is substantially the same as the configuration of the punch press 1, except that the second upper and lower turrets 43 and 45 of the punch press 1 are replaced with the configuration of FIG. An inverted U-shaped mold holding member 85 as shown is provided. The mold holding member 85 includes an upper horizontal portion 85a and a lower horizontal portion 85b vertically opposed to each other at a relatively high height interval, and the upper horizontal portion 85a is provided with the second upper die 47.
And a lower horizontal portion 85b, for example, the same second removable lower mold 89 as the second lower mold 49. The above second lower mold 89
Is a lower horizontal part 85 via a vertical movement cylinder (not shown).
It can appear and disappear from the upper surface of b. Also, the mold holding member 8
Since a large number of second upper molds 87 and lower molds 89 cannot be provided in the device 5, a known mold changing device 91 and a known mold are provided near the multifunction device 83 as shown in FIG. A mold storage device 93 is provided.

Note that the same components as those of the punch press 1 in the components of the punch press 83 are denoted by the same reference numerals in the drawing, and the details are omitted.

The present invention is not limited to the above description. For example, an appropriate U-shaped mold holding member may be provided instead of the first upper turret 29 and the second upper turret 33 of the punch press 1,83. Can be implemented in various other modes.

〔The invention's effect〕

As can be understood from the above description of the embodiments, in short, the present invention relates to a first upper mold holding member (29) supporting a plurality of first upper molds (37) and a plurality of first lower molds. (3
A first lower mold holding member (33) supporting the above 9) is provided to face vertically, and a first ram (41) capable of pressing the first upper mold (37) is vertically movable. A punch press provided with a movement positioning device (17) for moving and positioning a plate (W) with respect to a processing position by the first upper mold (37) and the first lower mold (39). A second upper mold supporting member (43) supporting a second upper mold (47) for forming the plate material (W) in a vertically movable manner at a position adjacent to the processing position; A second lower mold support member (45) supporting the lower mold (49) is provided so as to be vertically opposed to each other and a second ram (51) capable of pressing the second upper mold (47). ) Is provided so as to be vertically movable, and the height position of the second upper mold support member (43) is provided higher than the first upper mold support member (29). Both, in which provided retractably with respect to the upper surface of the second lower mold (49) the second lower die support member (45).

As is apparent from the above configuration, according to the present invention, the second upper mold supporting member 43 arranged at a position adjacent to the processing position of the normal first upper mold 37 and the first lower mold 39 is formed. A second upper mold 47 for processing is vertically movably supported, and a second lower mold 49 is protruded and retracted from the upper surface of the second lower mold support member 45 on the second lower mold support member 45. The second upper mold supporting member 43 is provided so as to be higher than the first upper mold supporting member 29 supporting the first upper mold 37.

Therefore, according to the present invention, the first upper and lower molds 37, 39
The second lower mold for forming at the time of processing the plate material W
The movement and positioning of the plate material W can be smoothly performed without the 49 interfering with the plate material W, and the second upper and lower molds 47 and 49 can be used to remove a relatively large upwardly projecting portion from the plate material W. Even when molding is performed, the molded portion does not interfere with the second upper mold supporting member 43.

Therefore, according to the present invention, after the sheet material W is subjected to a normal punching process or the like by the first upper and lower molds 37 and 39, the portion projecting upward from the plate material W by the second upper and lower molds 47 and 49. Can be continuously performed, and can be efficiently performed when punching and forming are mixed.

[Brief description of the drawings]

The drawings illustrate an embodiment according to the present invention.
The figure is a schematic view taken along the line II in FIG. FIG. 2 is a diagram along the schematic II-II line in FIG. FIG. 3 is a side view of the punch press of the first embodiment. FIG. 4 is an operation explanatory view. FIG. 5 is a schematic plan view of a punch press table and the like of the second embodiment. FIG. 6 is a side view of the mold holding member. 1 punch press 25 first processing section 27 second processing section 29 first upper turret 33 first lower turret 37 upper mold 39 lower mold 41 first Ram 43 Second upper turret 45 Second lower turret 47 Second upper mold 49 Second lower mold 51 Second ram 83 Punch press 85 Mold holding member 85a Upper horizontal part 85b Lower horizontal part 87 Second upper mold 89 Second lower mold

Claims (1)

(57) [Claims] A first supporting means for supporting a plurality of first upper molds;
An upper mold holding member (29) and a first lower mold holding member (33) supporting a plurality of first lower molds (39) are provided vertically facing each other, and the first upper mold (37) is provided. ), A first ram (41) capable of pressing is provided so as to be able to move up and down, and the plate material (W) is moved with respect to the processing position by the first upper mold (37) and the first lower mold (39). In a punch press provided with a movement positioning device (17) for performing movement positioning, a second upper mold (47) for performing forming processing on the plate material (W) is vertically moved to a position adjacent to the processing position. The second supported as possible
An upper mold support member (43) and a second lower mold support member (45) supporting the second lower mold (49) are provided so as to be vertically opposed to each other, and the second upper mold (47) is provided. ), A second ram (51) capable of pressing is vertically movable, and the height position of the second upper mold support member (43) is provided higher than the first upper mold support member (29). , The second lower mold (49)
Characterized by being provided so as to be able to protrude and retract from the upper surface of the second lower mold supporting member (45).