JP2008062266A - Press work apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a press work apparatus which has a simple structure, a small number of components, and a small size, and can be installed in any places without requiring a wide space, and can surely remove a scrap. <P>SOLUTION: A scrap removing device 10 is provided in a specified scrap cutter 4 of the press work apparatus 1. The scrap removing device 10 stores a slide member 11 which can slide up and down in the direction nearly perpendicular to the lower surface of the scrap S, and is provided so as to project its upper end from the upper surface of the scrap cutter 4, and a spring 12 for energizing the slide member 11 upward, in a nearly cylindrical space 4b formed in the scrap cutter 4. In addition, a projecting portion 13 is formed at the portion of a segment die 6 corresponding to the scrap removing device 10 so as to lower the slide member 11 downward via the scrap S by projecting into the space 4b when the segment die 6 has lowered. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a press working apparatus that reliably removes scrap generated when, for example, a bonnet panel of a vehicle is pressed.

  Conventionally, various techniques have been proposed and put into practical use in order to reliably remove scrap generated when the edge of a workpiece such as a panel placed on a lower die is cut by lowering the upper die.

For example, in Japanese Utility Model Laid-Open No. 6-9719, a scrap dropping pin is always urged upward by a spring on an upper die that moves up and down so that it can move up and down, and a movable member can be moved up and down on the upper die. The scraping pin push-down arm is pivotally supported by the movable member so as to be pivotable in the vertical direction, and is always pivoted upward by a spring, and the upper die is in contact with the push-down arm. There is disclosed a press-type scrap discharging device having a push shaft that causes a push-down arm to move downward by a relative movement stroke of the upper die with respect to the lower die after the pad comes into contact with the lower die.
Japanese Utility Model Publication No. 6-9719

  However, since the scrap discharging device disclosed in the above-mentioned Patent Document 1 is a complicated and large-sized device including a scrap dropping pin, a spring, a movable member, a push-down arm, a push shaft, and the like, there is also a space for installing this device. There is a problem that it is limited and costly.

  The present invention has been made in view of the above circumstances, and has a simple structure, a small number of parts, a small size, can be provided without taking up space anywhere, and can reliably remove scrap. The purpose is to provide.

  The present invention provides the above-mentioned scrap removal in a press working apparatus that cuts the edge of the workpiece placed on the lower die by lowering the upper die and removes the edge of the cut workpiece as scrap by scrap removing means. The means includes a slide member provided in the housing so as to be slidable in a direction substantially perpendicular to the lower surface of the scrap, a biasing member for biasing the slide member toward the scrap, and the slide member as the scrap. And a protruding part that can be retracted via the.

  The press working apparatus according to the present invention has a simple structure, a small number of parts, a small size, can be provided anywhere without taking up space, and scrap can be reliably removed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a first embodiment of the present invention, FIG. 1 is an overall configuration diagram of a press working apparatus, FIG. 2 is an enlarged sectional view of a scrap cutter, FIG. 3 is a sectional view taken along line III-III in FIG. FIG. 4 is a diagram for explaining the operation of scrap removal.

  In FIG. 1, reference numeral 1 denotes a press working device that press-shears the edge of a work W such as a bonnet panel of a vehicle. The lower die side of the press working device 1 serves as a lower die on a lower shoe 2. The punch 3 is fixed, and a plurality of scrap cutters 4 are provided for cutting the scrap S generated by cutting the edge of the workpiece W in a direction substantially perpendicular to the longitudinal direction.

  On the upper mold side of the press working apparatus 1, a segment die 6 as an upper mold is fixed to the upper mold shoe 5, and the workpiece W is punched 3 at the central portion of the upper mold shoe 5 when cutting. A pad 7 is provided for fixing to the pad.

  Among the plurality of scrap cutters 4, a predetermined scrap cutter 4 is provided with a scrap removing device 10 as scrap removing means, as shown in FIGS.

  That is, since the scrap cutter 4 cuts the scrap S in a direction substantially perpendicular to the longitudinal direction as described above, the scrap S falls by its own weight at a portion where the blade portions 4a do not face each other and are arranged back to back. It becomes difficult. In addition, the scrap S is not a straight shape, and it is difficult for the scrap S to fall due to its own weight even in a portion that is formed in an L shape. Therefore, the scrap removing device 10 is provided only in the portion of the scrap cutter 4 where the scrap S is difficult to fall as described above, without providing the scrap removing device 10 in all the scrap cutters 4.

  As shown in FIGS. 2, 3, and 4, the scrap removing device 10 can slide up and down in a substantially cylindrical space 4 b formed in the scrap cutter 4 in a direction substantially perpendicular to the lower surface of the scrap S. Thus, a slide member 11 provided with an upper end protruding upward from the upper surface of the scrap cutter 4 and a spring 12 as a biasing member for biasing the slide member 11 upward are stored.

  Further, when the segment die 6 descends, the segment die 6 protrudes into the space 4b of the scrap cutter 4 at the portion corresponding to the scrap removing device 10 and the slide member 11 of the scrap removing device 10 is passed through the scrap S. Thus, a protrusion 13 that can be lowered downward is formed.

  In addition, the site | part corresponding to the slide member 11 upper end of the scrap removal apparatus 10 of the scrap S is previously protruded upwards, as shown to Fig.4 (a), In the protrusion part 21 of this scrap S, The upper end of the slide member 11 is positioned.

  Next, an outline of an operation of placing the workpiece W on the punch 3 to cut the scrap S and removing the scrap S will be described.

  First, as shown in FIG. 4A, in a state where the workpiece W is placed on the punch 3, the protruding portion 21 of the portion that becomes the scrap S of the workpiece W is in a state of protruding upward, The upper end of the slide member 11 of the scrap removing device 10 is located at the top.

  Next, when the segment die 6 is lowered, the scrap S is cut from the workpiece W by the workpiece-side blade portion 6a of the segment die 6 as shown in FIG. 4B and FIG. Then, the scrap S is cut in a direction substantially perpendicular to the longitudinal direction of the scrap S by the scrap side blade portion 6 b of the segment die 6.

  At the same time, the projecting portion 13 provided on the segment die 6 lowers the slide member 11 while projecting the projecting portion 21 of the scrap S downward, and projects into the space 4 b of the scrap cutter 4.

  Next, when the segment die 6 is raised, as shown in FIG. 4 (c), the slide member 11 that has been lowered rises and pushes the scrap S upward, causing the scrap S to fall naturally. Acts easily.

  As described above, according to the first embodiment, the slide member 11 urged upward by the spring 12 is stored in the scrap cutter 4, and the projection 13 is provided at the position of the segment die 6 corresponding thereto. Since the scrap removing device 10 is configured, the structure is simple, the number of parts is small, the size is small, the space can be provided anywhere, and the scrap can be surely removed.

  Further, in the first embodiment, the upper end of the slide member 11 is configured to protrude from the upper surface of the scrap cutter 4, and the portion corresponding to the upper end of the slide member 11 of the scrap S is formed so as to protrude upward in advance. Finally, the scrap S can be greatly jumped upward. That is, if it does not protrude upward (for example, when it is the same as the top surface of the scrap cutter 4), the stroke indicated by β in FIG. It becomes only and becomes less effective. However, by projecting from the upper surface in this way, the scrap S can be spun up with a large stroke of (α + β), and a greater effect can be obtained. In addition, when only the flip-up stroke is sufficient, the upper end of the slide member 11 may not be configured to protrude from the upper surface of the scrap cutter 4.

  Next, FIG. 5 is an enlarged cross-sectional view of a main part of the scrap removing device of the press working device according to the second embodiment of the present invention. The second embodiment is different from the first embodiment in that the scrap removing device is embedded in the lower mold.

  That is, on the lower die side of the press working apparatus 30 according to the second embodiment, a punch 32 as a lower die is fixed to the lower shoe 31, and the guide 33 is placed on the punch 32 on the outer periphery of the punch 32. On the other hand, a movable cam 34 which can be moved close to and away from is provided.

  The movable cam 34 is always urged by the guide sleeve 35 in a direction away from the punch 32, and a blade portion 34 a that projects into the groove portion 32 a formed in the punch 32 and cuts the workpiece W at the end. Is formed.

  The upper die side of the press working apparatus 30 is provided with a cam driver 36 that contacts from the upper surface of the movable cam 34 and slides the movable cam 34 toward the punch 32.

  Further, on the inner side of the cam driver 36, an upper restraining tooth 37 for fixing the work W to the punch 32 by lowering the upper mold is provided. The upper restraining tooth 37 is vertically moved by an upper restraining tooth guide portion 38. The movement is guided and urged downward by the urging member 39.

  A scrap removing device 40 as a scrap removing means is embedded on the outer peripheral side of the groove 32 a of the punch 32.

  The scrap removing device 40 is slidable in a direction substantially perpendicular to the lower surface of the scrap S in a substantially cylindrical space 32b formed in the punch 32, and a slide member provided with an upper end protruding upward from the upper surface of the punch 32. 41 and a spring 42 as a biasing member that biases the slide member 41 toward the scrap S are stored.

  Further, when the movable cam 34 approaches the portion corresponding to the scrap removing device 40 of the movable cam 34, the movable cam 34 protrudes into the space 32 b of the punch 32, and the slide member 41 of the scrap removing device 40 passes through the scrap S. A retractable protrusion 43 is formed.

  In the second embodiment, the portion corresponding to the upper end of the slide member 41 of the scrap removal apparatus 40 for the scrap S is not particularly formed to protrude upward, but may be formed to protrude upward. .

  In the press working apparatus 30 configured as described above, when the upper die is lowered, the upper holding teeth 37 fix the workpiece W to the punch 32, the cam driver 36 moves the movable cam 34 toward the punch 32, and the blade The workpiece | work W is cut | disconnected in the part 34a and the scrap S is generated.

  During this operation, the protrusion 43 of the movable cam 34 moves the slide member 41 backward into the space 32 b of the punch 32 while deforming the scrap S via the scrap S.

  When the upper mold is raised, the retracted slide member 41 protrudes again, jumps up the scrap S and discharges it.

  As described above, also in the second embodiment, as in the first embodiment, the structure is simple, the number of parts is small, and the space can be provided anywhere without taking up space, and scrap is reliably removed. It becomes possible.

1 is an overall configuration diagram of a press working apparatus according to a first embodiment of the present invention. Same as above, enlarged sectional view of scrap cutter Same as above, III-III sectional view of FIG. Same as above, illustration of action for scrap removal The principal part expanded sectional view of the scrap removal apparatus of the press work apparatus by 2nd Embodiment of this invention.

Explanation of symbols

1 Press processing equipment 3 Punch (lower mold)
4 Scrap cutter 6 Segment die (upper die)
10 Scrap removal equipment (scrap removal means)
11 Slide member 12 Spring (biasing member)
13 Protruding part 21 Protruding part S Scrap W Workpiece

Claims (4)

In the press working apparatus for cutting the edge of the workpiece placed on the lower die by lowering the upper die and removing the edge of the cut workpiece by scrap removing means as scrap,
The scrap removing means is
In the housing, a slide member provided slidably in a direction substantially perpendicular to the lower surface of the scrap,
A biasing member that biases the slide member toward the scrap;
A projecting portion that allows the slide member to be retracted through the scrap;
A press working apparatus comprising:   2. The slide member according to claim 1, wherein an upper end portion of the slide member projects from an upper surface of the casing, and the scrap portion corresponding to the projecting portion of the slide member is deformed upward in advance. Press processing equipment. A scrap cutter for cutting the scrap,
The press working apparatus according to claim 1 or 2, wherein the scrap removing means is provided in the scrap cutter.   The press working apparatus according to claim 1, wherein the scrap removing means is embedded in the lower mold.

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